FNUS55 KFGZ 180738 FWFFGZ Fire Weather Planning Forecast for northern Arizona National Weather Service Flagstaff AZ 1238 AM MST Mon May 18 2026 +++ Thunderstorms imply strong gusty and erratic winds +++ +++ 20-foot wind forecast of 'light winds' indicates mainly terrain driven winds +++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION...Today and Tuesday...Slight chance for light showers and possibly a thunderstorm this morning across far northern Arizona, otherwise dry and cool conditions. Winds west/southwest 10- 20 mph with gusts 25-35 mph, subsiding to 5-15 mph on Tuesday. Minimum afternoon RH 10-30%, falling to 10-20% on Tuesday. Wednesday through Friday....Dry conditions with gradually warming temperatures. Winds west/southwest 5-15 mph each day, along with minimum afternoon RH 5-15%. AZZ115-190115- Western Mogollon Rim- Including the cities of Flagstaff, Williams, and Munds Park 1238 AM MST Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Max temperature.....59-69. 24 hr trend......Little change. Min humidity........11-16 percent. 24 hr trend......Little change. 20-foot winds.......West winds 10 to 15 mph with gusts up to 25 mph. Free winds..........West 25 to 35 mph. PoP.................0 percent. Chance lightning....0 percent. Mixing height.......3400 ft AGL increasing to 7300 ft AGL in the afternoon. Transport winds.....West 10 to 15 knots. Max Ventilation.....Excellent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....26-36. 24 hr trend......6 degrees cooler. Max humidity........65-85 percent. 24 hr trend......9 percent drier. 20-foot winds.......Southwest winds around 10 mph shifting to the northeast after midnight. Free winds..........Southwest 15 to 25 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....63-73. 24 hr trend......Little change. Min humidity........9-14 percent. 24 hr trend......7 percent drier. 20-foot winds.......East winds around 10 mph shifting to the southwest in the afternoon. Free winds..........Southwest 5 to 10 mph increasing to 10 to 20 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. Mixing height.......4900 ft AGL increasing to 9700 ft AGL in the afternoon. Transport winds.....Southwest 5 to 10 knots. Max Ventilation.....Excellent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Mostly clear. Highs 66 to 76. Northeast winds around 10 mph shifting to the southeast in the morning, then shifting to the southwest in the afternoon. .THURSDAY...Mostly clear. Highs 69 to 79. Light winds becoming west 10 to 15 mph. .FRIDAY...Mostly clear. Highs 70 to 80. Light winds becoming southwest around 10 mph in the afternoon. $$ AZZ106-190115- Grand Canyon Country- Including the cities of Grand Canyon Village, Tusayan, Supai, and Grand Canyon North Rim 1238 AM MST Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Max temperature.....69-79 at the River...55-65 at the Rim. 24 hr trend......12 degrees cooler. Min humidity........10 percent at the River...11-16 percent at the Rim. 24 hr trend......Little change. 20-foot winds.......Northwest winds 10 to 15 mph. Free winds..........Northwest 15 to 25 mph decreasing to 5 to 15 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. Mixing height.......3500 ft AGL increasing to 6500 ft AGL in the afternoon. Transport winds.....Northwest 10 to 15 knots. Max Ventilation.....Verygood. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....44-50 at the River...32-42 at the Rim. 24 hr trend......Little change. Max humidity........24-44 percent at the River...43-63 percent at the Rim. 24 hr trend......Little change. 20-foot winds.......North winds 10 to 15 mph. Free winds..........West 5 to 15 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....76-86 at the River...62-72 at the Rim. 24 hr trend......7 degrees warmer. Min humidity........8 percent at the River...9-14 percent at the Rim. 24 hr trend......Little change. 20-foot winds.......Northeast winds around 10 mph shifting to the west in the afternoon. Free winds..........West 5 to 15 mph. PoP.................0 percent. Chance lightning....0 percent. Mixing height.......4100 ft AGL increasing to 9800 ft AGL in the afternoon. Transport winds.....East around 5 knots shifting to the southwest in the afternoon. Max Ventilation.....Excellent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Mostly clear. Highs 78 to 88. North winds 10 to 15 mph shifting to the northwest in the afternoon. .THURSDAY...Mostly clear. Highs 81 to 91. Light winds becoming west around 10 mph in the afternoon. .FRIDAY...Mostly clear. Highs 84 to 94. Light winds becoming west around 10 mph in the afternoon. $$ AZZ108-190115- Yavapai County Mountains- Including the cities of Prescott, Seligman, Ash Fork, and Crown King 1238 AM MST Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Max temperature.....Around 67 below 5000 feet...around 62 above 5000 feet. 24 hr trend......Little change. Min humidity........11-16 percent. 24 hr trend......Little change. 20-foot winds.......West winds 10 to 15 mph. Free winds..........West 20 to 30 mph becoming southwest 10 to 20 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. Mixing height.......3900 ft AGL increasing to 7500 ft AGL in the afternoon. Transport winds.....West around 5 knots increasing to southwest around 15 knots in the afternoon. Max Ventilation.....Excellent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....Around 52 below 5000 feet...around 49 above 5000 feet. 24 hr trend......Little change. Max humidity........37-57 percent. 24 hr trend......23 percent drier. 20-foot winds.......West winds around 10 mph shifting to the northeast after midnight. Free winds..........Southwest 10 to 20 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....Around 72 below 5000 feet...around 67 above 5000 feet. 24 hr trend......6 degrees warmer. Min humidity........8-13 percent. 24 hr trend......6 percent drier. 20-foot winds.......East winds around 10 mph shifting to the southwest in the afternoon. Free winds..........West 5 to 15 mph. PoP.................0 percent. Chance lightning....0 percent. Mixing height.......3800 ft AGL increasing to 9200 ft AGL in the afternoon. Transport winds.....Northeast around 5 knots shifting to the southwest in the afternoon. Max Ventilation.....Excellent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Mostly clear. Highs 72 to 80. Northeast winds around 10 mph shifting to the east in the morning, then shifting to the southwest in the afternoon. .THURSDAY...Mostly clear. Highs 75 to 83. Southeastwinds 10 to 15 mph shifting to the southwest in the afternoon. .FRIDAY...Clear. Highs 76 to 84. Light winds becoming southwest 10 to 15 mph in the afternoon. $$ AZZ137-190115- Yavapai County Valleys and Basins- Including the cities of Cottonwood, Camp Verde, Cordes Junction, and Bagdad 1238 AM MST Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Max temperature.....72-82. 24 hr trend......Little change. Min humidity........8-13 percent. 24 hr trend......Little change. 20-foot winds.......Southwest winds 10 to 15 mph. Free winds..........West 20 to 30 mph becoming southwest 10 to 20 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....38-48. 24 hr trend......Little change. Max humidity........43-53 percent. 24 hr trend......29 percent drier. 20-foot winds.......Southwest winds around 10 mph shifting to the north after midnight. Free winds..........Southwest 10 to 20 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....77-87. 24 hr trend......Little change. Min humidity........6-11 percent. 24 hr trend......7 percent drier. 20-foot winds.......Southeast winds around 10 mph shifting to the southwest in the afternoon. Free winds..........Southwest 5 to 15 mph. PoP.................0 percent. Chance lightning....0 percent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Mostly clear. Highs 81 to 91. Northeast winds around 10 mph shifting to the southeast in the morning, then shifting to the southwest in the afternoon. .THURSDAY...Mostly clear. Highs 83 to 93. Light winds becoming southeast around 10 mph in the morning, then shifting to the southwest in the afternoon. .FRIDAY...Mostly clear. Highs 84 to 94. Light winds becoming southwest 10 to 15 mph in the afternoon. $$ AZZ138-190115- Oak Creek and Sycamore Canyons- Including the cities of Sedona and Village of Oak Creek 1238 AM MST Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Max temperature.....66-76. 24 hr trend......Little change. Min humidity........15-20 percent. 24 hr trend......Little change. 20-foot winds.......Southwest winds 10 to 15 mph. Free winds..........Southwest 25 to 35 mph. PoP.................0 percent. Chance lightning....0 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....44-51 below 5000 feet...39-49 above 5000 feet. 24 hr trend......Little change. Max humidity........25-45 percent below 5000 feet...36-56 percent above 5000 feet. 24 hr trend......21 percent drier. 20-foot winds.......South winds around 10 mph shifting to the northeast after midnight. Free winds..........Southwest 15 to 25 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....71-81. 24 hr trend......Little change. Min humidity........10 percent. 24 hr trend......10 percent drier. 20-foot winds.......Southeast winds around 10 mph shifting to the south in the afternoon. Free winds..........Southwest 10 to 20 mph. PoP.................0 percent. Chance lightning....0 percent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Mostly clear. Highs 74 to 84. Northeast winds around 10 mph shifting to the southwest in the afternoon. .THURSDAY...Mostly clear. Highs 76 to 86. Light winds becoming southwest around 10 mph in the afternoon. .FRIDAY...Mostly clear. Highs 78 to 88. Light winds becoming southwest around 10 mph with gusts up to 20 mph in the afternoon. $$AZZ105-190115- Marble and Glen Canyons- Including the cities of Page and Lees Ferry 1238 AM MST Mon May 18 2026 /138 AM MDT Mon May 18 2026/ .TODAY... Sky/weather.........Mostly sunny. Max temperature.....65-75. 24 hr trend......13 degrees cooler. Min humidity........11-16 percent. 24 hr trend......Little change. 20-foot winds.......Northwest winds 10 to 15 mph with gusts up to 25 mph. Free winds..........Northwest 20 to 30 mph becoming west 10 to 20 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....41-50. 24 hr trend......Little change. Max humidity........34-54 percent. 24 hr trend......Little change. 20-foot winds.......Northwest winds 10 to 15 mph. Gusts up to 20 mph in the evening. Free winds..........West 5 to 10 mph shifting to the south after midnight. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....69-79. 24 hr trend......Little change. Min humidity........12-17 percent. 24 hr trend......Little change. 20-foot winds.......North winds 10 to 15 mph. Free winds..........Southwest 5 to 15 mph. PoP.................0 percent. Chance lightning....0 percent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Mostly clear. Highs 74 to 84. Light winds. .THURSDAY...Mostly clear. Highs 78 to 88. Light winds becoming west around 10 mph in the afternoon. .FRIDAY...Mostly clear. Highs 81 to 90. Light winds becoming west around 10 mph in the afternoon. $$ AZZ104-190115- Kaibab Plateau- Including the cities of Jacob Lake and Fredonia 1238 AM MST Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Max temperature.....57-66 below 7000 feet...49-57 above 7000 feet. 24 hr trend......14 degrees cooler. Min humidity........15-20 percent below 7000 feet...18-23 percent above 7000 feet. 24 hr trend......Little change. 20-foot winds.......Northwest winds 10 to 15 mph. Free winds..........Northwest 20 to 30 mph becoming west 10 to 20 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....32-41 below 7000 feet...27-33 above 7000 feet. 24 hr trend......Little change. Max humidity........48-68 percent below 7000 feet...61-81 percent above 7000 feet. 24 hr trend......6 percent drier. 20-foot winds.......Northwest winds around 10 mph shifting to the northeast after midnight. Free winds..........Southwest 5 to 10 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....63-72 below 7000 feet...56-64 above 7000 feet. 24 hr trend......7 degrees warmer. Min humidity........9-14 percent. 24 hr trend......Little change. 20-foot winds.......Northeast winds around 10 mph shifting to the west in the afternoon. Free winds..........West 5 to 10 mph shifting to the southwest 10 to 20 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Mostly clear. Highs 68 to 78. Light winds becoming north around 10 mph in the morning, then shifting to the northwest in the afternoon. .THURSDAY...Mostly clear. Highs 72 to 82. Light winds becoming northwest 10 to 15 mph. .FRIDAY...Mostly clear. Highs 75 to 85. Light winds becoming west 10 to 15 mph in the afternoon. $$ AZZ107-190115- Coconino Plateau- Including the city of Valle 1238AM MST Mon May 18 2026 /138 AM MDT Mon May 18 2026/ .TODAY... Sky/weather.........Mostly sunny. Max temperature.....60-67 on the Plateau...69-79 at the River. 24 hr trend......9 degrees cooler. Min humidity........13 percent. 24 hr trend......Little change. 20-foot winds.......Northwest winds 10 to 15 mph. Free winds..........Northwest 20 to 30 mph becoming west 10 to 20 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....31-41 on the Plateau...44-53 at the River. 24 hr trend......Little change. Max humidity........50-70 percent on the Plateau...33-43 percent at the River. 24 hr trend......8 percent drier. 20-foot winds.......North winds 10 to 15 mph. Free winds..........West 5 to 15 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....67-73 on the Plateau...76-86 at the River. 24 hr trend......7 degrees warmer. Min humidity........10 percent. 24 hr trend......Little change. 20-foot winds.......East winds around 10 mph shifting to the west in the afternoon. Free winds..........West 10 to 20 mph. PoP.................0 percent. Chance lightning....0 percent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Mostly clear. Highs 70 to 79. Northeast winds 10 to 15 mph shifting to the northwest in the afternoon. .THURSDAY...Mostly clear. Highs 74 to 83. Light winds becoming south around 10 mph in the morning, then shifting to the west in the afternoon. .FRIDAY...Mostly clear. Highs 76 to 85. Light winds becoming west around 10 mph in the afternoon. $$ AZZ109-190115- Northeast Plateaus and Mesas Hwy 264 Northward- Including the cities of Keams Canyon and Kaibito 1238 AM MST Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Max temperature.....61-70. 24 hr trend......12 degrees cooler. Min humidity........10-15 percent. 24 hr trend......Little change. 20-foot winds.......West winds 15 to 20 mph. Gusts up to 30 mph in the morning. Free winds..........West 25 to 35 mph decreasing to 10 to 20 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....36-43. 24 hr trend......Little change. Max humidity........48-68 percent. 24 hr trend......7 percent wetter. 20-foot winds.......North winds 10 to 15 mph with gusts up to 20 mph. Free winds..........Southwest 5 to 15 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....65-73. 24 hr trend......Little change. Min humidity........12-17 percent. 24 hr trend......Little change. 20-foot winds.......North winds around 10 mph shifting to the west in the afternoon. Free winds..........Southwest 5 to 10 mph increasing to 10 to 20 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Mostly clear. Highs 69 to 77. North winds 10 to 15 mph. .THURSDAY...Mostly clear. Highs 74 to 82. Light winds becoming west around 10 mph in the afternoon. .FRIDAY...Mostly clear. Highs 77 to 84. Light winds becoming west around 10 mph in the afternoon. $$ AZZ140-190115- Northeast Plateaus and Mesas South of Hwy 264- Including the cities of Dilkon and Kykotsmovi 1238 AM MST Mon May 18 2026 /138 AM MDT Mon May 18 2026/ .TODAY... Sky/weather.........Mostly sunny. Max temperature.....64-73. 24 hr trend......9 degreescooler. Min humidity........10-15 percent. 24 hr trend......Little change. 20-foot winds.......West winds 15 to 20 mph. Gusts up to 35 mph decreasing to 25 mph in the afternoon. Free winds..........West 25 to 35 mph. PoP.................0 percent. Chance lightning....0 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....38-43. 24 hr trend......6 degrees cooler. Max humidity........43-63 percent. 24 hr trend......Little change. 20-foot winds.......West winds around 10 mph shifting to the south after midnight. Free winds..........Southwest 15 to 25 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....69-77. 24 hr trend......Little change. Min humidity........14 percent. 24 hr trend......Little change. 20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 20 mph in the afternoon. Free winds..........Southwest 10 to 20 mph. PoP.................0 percent. Chance lightning....0 percent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Partly cloudy. Highs 72 to 79. Southeast winds around 10 mph shifting to the southwest. .THURSDAY...Mostly clear. Highs 74 to 82. East winds around 10 mph shifting to the west. .FRIDAY...Mostly clear. Highs 76 to 84. Light winds becoming southwest 10 to 15 mph. $$ AZZ110-190115- Chinle Valley- Including the cities of Canyon De Chelly, Chinle, and Kayenta 138 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Partly cloudy then becoming sunny. Slight chance of showers and thunderstorms in the morning. Max temperature.....62-68. 24 hr trend......13 degrees cooler. Min humidity........12-17 percent. 24 hr trend......Little change. 20-foot winds.......West winds 15 to 20 mph. Gusts up to 35 mph decreasing to 25 mph in the afternoon. Free winds..........West 30 to 40 mph decreasing to 20 to 30 mph in the afternoon. PoP.................20 percent. Chance lightning....10 percent decreasing to 0 percent in the afternoon. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....36-42. 24 hr trend......8 degrees cooler. Max humidity........52-72 percent. 24 hr trend......9 percent wetter. 20-foot winds.......Northwest winds 10 to 15 mph. Free winds..........Southwest 10 to 20 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....67-73. 24 hr trend......Little change. Min humidity........12-17 percent. 24 hr trend......Little change. 20-foot winds.......Northwest winds 10 to 15 mph. Free winds..........Southwest 15 to 25 mph. PoP.................0 percent. Chance lightning....0 percent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Partly cloudy. Highs 70 to 77. Light winds becoming northwest around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 73 to 80. Light winds becoming west around 10 mph in the afternoon. .FRIDAY...Mostly clear. Highs 76 to 82. Light winds becoming west around 10 mph in the afternoon. $$ AZZ111-190115- Chuska Mountains and Defiance Plateau- Including the cities of Window Rock and Ganado 1238 AM MST Mon May 18 2026 /138 AM MDT Mon May 18 2026/ .TODAY... Sky/weather.........Mostly cloudy then becoming mostly sunny. Slight chance of rain showers and snow showers in the morning. Max temperature.....59-69. 24 hr trend......10 degrees cooler. Min humidity........15-20 percent. 24 hr trend......6 percent wetter. 20-foot winds.......Breezy. West winds 15 to 25 mph. Gusts up to 40 mph decreasing to 30 mph in the afternoon. Free winds..........Southwest 35 to 45 mph becoming west 25 to 35 mph in the afternoon. PoP.................20 percent. Chance lightning....10 percent decreasing to 0 percent in the afternoon. Mixing height.......3900 ft AGL increasing to 7700 ft AGL in the afternoon. Transport winds.....Southwest 30 to 40 knots. Max Ventilation.....Excellent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....33-42. 24 hr trend......7 degrees cooler. Max humidity........46-66 percent. 24 hr trend......Little change. 20-foot winds.......West winds around 10 mph in the evening becoming light. Free winds..........Southwest 20 to 30 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....64-74. 24 hr trend......6 degrees warmer. Min humidity........13-18 percent. 24 hr trend......Little change. 20-foot winds.......Southwest winds 10 to 15 mph. Free winds..........Southwest 15 to 25 mph. PoP.................0 percent. Chance lightning....0 percent. Mixing height.......4800 ft AGL increasing to 8600 ft AGL in the afternoon. Transport winds.....Southwest 15 to 20 knots. Max Ventilation.....Excellent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Partly cloudy. Highs 65 to 75. Light winds becoming southwest 10 to 15 mph. .THURSDAY...Mostly clear. Highs 67 to 77. Light winds becoming southwest 10 to 15 mph. .FRIDAY...Mostly clear. Highs 69 to 79. Light winds becoming west around 10 mph with gusts up to 20 mph in the afternoon. $$ AZZ139-190115- Black Mesa Area- 1238 AM MST Mon May 18 2026 /138 AM MDT Mon May 18 2026/ .TODAY... Sky/weather.........Mostly sunny. Max temperature.....57-64. 24 hr trend......12 degrees cooler. Min humidity........13-18 percent. 24 hr trend......Little change. 20-foot winds.......Breezy. West winds 20 to 25 mph with gusts up to 35 mph decreasing to 10 to 15 mph with gusts up to 25 mph in the afternoon. Free winds..........West 25 to 35 mph decreasing to 15 to 25 mph in the afternoon. PoP.................10 percent. Chance lightning....10 percent decreasing to 0 percent in the afternoon. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....34-40. 24 hr trend......6 degrees cooler. Max humidity........53-73 percent. 24 hr trend......6 percent wetter. 20-foot winds.......Northwest winds around 10 mph shifting to the north after midnight. Free winds..........Southwest 10 to 20 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....61-70. 24 hr trend......6 degrees warmer. Min humidity........13-18 percent. 24 hr trend......Little change. 20-foot winds.......Northeast winds around 10 mph shifting to the west in the afternoon. Free winds..........Southwest 5 to 10 mph increasing to 10 to 20 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Mostly clear. Highs 66 to 73. Light winds becoming west around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 69 to 76. Light winds becoming west 10 to 15 mph. .FRIDAY...Mostly clear. Highs 72 to 78. Light winds becoming southwest 10 to 15 mph. $$ AZZ112-190115- Little Colorado River Valley in Coconino County- Including the cities of Wupatki National Monument and Tuba City 1238 AM MST Mon May 18 2026/138 AM MDT Mon May 18 2026/ .TODAY... Sky/weather.........Mostly sunny. Max temperature.....67-76. 24 hr trend......8 degrees cooler. Min humidity........9-14 percent. 24 hr trend......Little change. 20-foot winds.......West winds 10 to 15 mph with gusts up to 25 mph. Free winds..........West 30 to 40 mph decreasing to 15 to 25 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....38-44. 24 hr trend......7 degrees cooler. Max humidity........42-62 percent. 24 hr trend......Little change. 20-foot winds.......Northwest winds 10 to 15 mph. Free winds..........Southwest 15 to 25 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....72-79. 24 hr trend......Little change. Min humidity........12 percent. 24 hr trend......Little change. 20-foot winds.......North winds around 10 mph shifting to the southwest in the afternoon. Free winds..........Southwest 10 to 20 mph. PoP.................0 percent. Chance lightning....0 percent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Mostly clear. Highs 75 to 82. Northwest winds 10 to 15 mph. .THURSDAY...Mostly clear. Highs 77 to 86. Northwest winds around 10 mph early in the morning becoming light, then becoming west around 10 mph in the afternoon. .FRIDAY...Mostly clear. Highs 78 to 88. West winds around 10 mph early in the morning becoming light, then becoming west around 10 mph in the afternoon. $$ AZZ113-190115- Little Colorado River Valley in Navajo County- Including the cities of Winslow, Holbrook, and Snowflake 1238 AM MST Mon May 18 2026 /138 AM MDT Mon May 18 2026/ .TODAY... Sky/weather.........Mostly sunny. Max temperature.....69-75. 24 hr trend......Little change. Min humidity........16-21 percent. 24 hr trend......7 percent wetter. 20-foot winds.......Southwest winds 15 to 20 mph with gusts up to 35 mph. Free winds..........Southwest 35 to 45 mph decreasing to 25 to 35 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. Mixing height.......5200 ft AGL increasing to 9200 ft AGL in the afternoon. Transport winds.....West 20 to 25 knots. Max Ventilation.....Excellent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....38-43. 24 hr trend......7 degrees cooler. Max humidity........48-68 percent. 24 hr trend......Little change. 20-foot winds.......Southwest winds 10 to 15 mph. Free winds..........Southwest 20 to 30 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....Around 77. 24 hr trend......Little change. Min humidity........13 percent. 24 hr trend......6 percent drier. 20-foot winds.......Southwest winds 10 to 15 mph. Free winds..........Southwest 15 to 25 mph. PoP.................0 percent. Chance lightning....0 percent. Mixing height.......3300 ft AGL increasing to 10000 ft AGL in the afternoon. Transport winds.....West around 5 knots increasing to southwest around 15 knots in the afternoon. Max Ventilation.....Excellent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Partly cloudy. Highs 76 to 81. West winds 10 to 15 mph. .THURSDAY...Mostly clear. Highs 77 to 83. Southwest winds 10 to 15 mph. .FRIDAY...Mostly clear. Highs 79 to 85. Light winds becoming west around 10 mph in the afternoon. $$ AZZ114-190115- Little Colorado River Valley in Apache County- Including the cities of St. Johns and Springerville 1238 AM MST Mon May 18 2026 /138 AM MDT Mon May 18 2026/ .TODAY... Sky/weather.........Mostly sunny. Max temperature.....67-74. 24 hr trend......6 degrees cooler. Min humidity........22 percent below 7000 feet...15-20 percent above 7000 feet. 24 hr trend......7 percent wetter. 20-foot winds.......Breezy. Southwest winds 15 to 25 mph with gusts up to 40 mph. Free winds..........Southwest 40 to 50 mph decreasing to 30 to 40 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....Around 43 below 7000 feet...around 40 above 7000 feet. 24 hr trend......6 degrees cooler. Max humidity........62 percent below 7000 feet...65 percent above 7000 feet. 24 hr trend......18 percent wetter. 20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 25 mph in the evening. Free winds..........Southwest 25 to 35 mph decreasing to 15 to 25 mph after midnight. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....73-80. 24 hr trend......6 degrees warmer. Min humidity........13 percent. 24 hr trend......Little change. 20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 25 mph in the afternoon. Free winds..........Southwest 20 to 30 mph. PoP.................0 percent. Chance lightning....0 percent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Partly cloudy. Highs 73 to 80. Southwest winds 10 to 15 mph. .THURSDAY...Mostly clear. Highs 73 to 81. South winds 10 to 15 mph shifting to the west in the afternoon. .FRIDAY...Mostly clear. Highs 74 to 82. Light winds becoming west around 10 mph in the afternoon. $$ AZZ116-190115- Eastern Mogollon Rim- Including the cities of Heber, Happy Jack, and Forest Lakes 1238 AM MST Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Max temperature.....64-73 below 5000 feet...60-70 above 5000 feet. 24 hr trend......Little change. Min humidity........19-29 percent. 24 hr trend......10 percent wetter. 20-foot winds.......Southwest winds 15 to 20 mph with gusts up to 30 mph. Free winds..........Southwest 35 to 45 mph decreasing to 25 to 35 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....33-43. 24 hr trend......6 degrees cooler. Max humidity........56-76 percent. 24 hr trend......7 percent drier. 20-foot winds.......Southwest winds around 10 mph in the evening becoming light. Free winds..........Southwest 25 to 35 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....70-78 below 5000 feet...65-75 above 5000 feet. 24 hr trend......6 degrees warmer. Min humidity........12-17 percent. 24 hr trend......12 percent drier. 20-foot winds.......Southwest winds 10 to 15 mph. Free winds..........Southwest 20 to 30 mph. PoP.................0 percent. Chance lightning....0 percent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Partly cloudy. Highs 67 to 77. Light winds becoming southwest 10 to 15 mph. .THURSDAY...Mostly clear. Highs 69 to 79. Light winds becoming southwest 10 to 15 mph. .FRIDAY...Mostly clear. Highs 70 to 80. Light winds becoming southwest around 10 mph with gusts up to 20 mph in the afternoon. $$ AZZ117-190115- White Mountains- Including the cities of Show Low, Greer, and Pinetop 1238 AM MST Mon May 18 2026.TODAY... Sky/weather.........Mostly sunny. Max temperature.....64-72 below 7000 feet...57-67 above 7000 feet. 24 hr trend......Little change. Min humidity........16-21 percent. 24 hr trend......9 percent wetter. 20-foot winds.......Breezy. Southwest winds 15 to 25 mph with gusts up to 35 mph. Free winds..........Southwest 40 to 50 mph decreasing to 30 to 40 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. Mixing height.......4000 ft AGL increasing to 6400 ft AGL in the afternoon. Transport winds.....Southwest 20 to 25 knots. Max Ventilation.....Excellent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....39-46 below 7000 feet...31-41 above 7000 feet. 24 hr trend......Little change. Max humidity........52-72 percent below 7000 feet...75-95 percent above 7000 feet. 24 hr trend......19 percent wetter. 20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 20 mph in the evening. Free winds..........Southwest 25 to 35 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....70-77 below 7000 feet...62-72 above 7000 feet. 24 hr trend......Little change. Min humidity........12-17 percent. 24 hr trend......Little change. 20-foot winds.......Southwest winds 10 to 15 mph. Gusts up to 25 mph in the afternoon. Free winds..........Southwest 20 to 30 mph. PoP.................0 percent. Chance lightning....0 percent. Mixing height.......4700 ft AGL increasing to 7900 ft AGL in the afternoon. Transport winds.....South around 10 knots increasing to southwest around 20 knots in the afternoon. Max Ventilation.....Excellent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Mostly cloudy. Highs 67 to 77. Southwest winds 10 to 15 mph. .THURSDAY...Mostly clear. Highs 69 to 79. Southwest winds 10 to 15 mph. .FRIDAY...Mostly clear. Highs 70 to 80. Light winds becoming southwest around 10 mph in the afternoon. $$ AZZ118-190115- Northern Gila County- Including the cities of Payson, Strawberry, and Young 1238 AM MST Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Max temperature.....71-81 below 5000 feet...64-74 above 5000 feet. 24 hr trend......Little change. Min humidity........17-22 percent. 24 hr trend......10 percent wetter. 20-foot winds.......Southwest winds 10 to 15 mph with gusts up to 25 mph. Free winds..........Southwest 30 to 40 mph decreasing to 20 to 30 mph in the afternoon. PoP.................0 percent. Chance lightning....0 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....44-54 below 5000 feet...37-47 above 5000 feet. 24 hr trend......Little change. Max humidity........36-56 percent below 5000 feet...52-72 percent above 5000 feet. 24 hr trend......11 percent drier. 20-foot winds.......Southwest winds around 10 mph in the evening becoming light. Free winds..........Southwest 20 to 30 mph. PoP.................0 percent. Chance lightning....0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....77-87 below 5000 feet...70-79 above 5000 feet. 24 hr trend......Little change. Min humidity........9-14 percent below 5000 feet...12-17 percent above 5000 feet. 24 hr trend......10 percent drier. 20-foot winds.......Light winds becoming southwest 10 to 15 mph in the afternoon. Free winds..........Southwest 15 to 25 mph. PoP.................0 percent. Chance lightning....0 percent. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...Partly cloudy. Highs 77 to 87. Light winds becoming southwest around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 79 to 89. Light winds becoming southwest around 10 mph in the afternoon. .FRIDAY...Mostly clear. Highs 79 to 89. Light winds becoming southwest around 10 mph in the afternoon. $$ .6 TO 10 DAY OUTLOOK FOR MAY 23 - 27 2026... Above normal temperatures and above normal precipitation. = $$ VENTILATION...Transport wind and mixing height are based on the following points. ZONE 115...Williams.......6750 FT MSL. ZONE 106...Tusayan........6606 FT MSL. ZONE 108...Prescott.......5052 FT MSL. ZONE 111...Window Rock....6739 FT MSL. ZONE 113...Winslow........4883 FT MSL. ZONE 117...Whiteriver.....5225 FT MSL. Ventilation categories are determined by criteria established by each state. $$