FNUS75 KTWC 191155 FWSTWC Spot Forecast for Steeple Fire...USFS National Weather Service Tucson AZ 455 AM MST Tue May 19 2026 Forecast is based on forecast start time of 0600 MST on May 19. .DISCUSSION...A dry weather system to our north will continue another dry and breezy day. Winds will be less than previous days and it will continue to lower in intensity each day. Today's afternoon winds will be southwest up to 12 mph and gusts high as 28 mph. Ridgetops to the south of the fire area will experience the stronger winds. Min relative humidities will be in the lower twenties and then dropping into the teens for tomorrow. .TODAY... Sky/weather.........Sunny. Chance of pcpn......0 percent. Max temperature.....60-63 degrees. Min humidity........19-22 percent. 20-foot winds.......West-northwest winds at 5 to 9 mph this early morning. By 1100 hours, becoming southwest winds 7 to 12 mph with gusts up to 25-28 mph. Expose ridges will see the stronger winds. Smoke dispersal.....Poor (3300 knot-ft) increasing to excellent (125400 knot-ft). Mixing height.......1800 ft AGL increasing to 8000 ft AGL. Transport winds.....Southwest 6 to 15 knots increasing to 16 to 22 knots in the late morning and afternoon. TIME (MST) 6 AM 9 AM NOON 3 PM Sky (%).........25 0 0 16 Weather cov..... Weather type....NONE NONE NONE NONE Tstm cov........ CWR.............0 0 0 0 Temp............40 53 58 60 RH..............66 37 27 21 20 FT wind......WNW 3G7 WSW 8G19 SW 9G20 SW 10G22 Mix hgt (ft)....500 3900 6300 8000 Transport wind..SW 6 S 15 S 20 SW 21 Vrate kt-ft/1K..3 58 125 169 Ventrate Cat....POOR GOOD EXNT EXNT .TONIGHT... Sky/weather.........Partly cloudy then becoming mostly cloudy then becoming mostly clear then becoming mostly cloudy. Chance of pcpn......0 percent. Min temperature.....41-44 degrees. Max humidity........45-48 percent. 20-foot winds.......Southwest winds 8 to 15 mph with gusts up to 25 mph early in the evening. After 2100 hours, becoming northwest at 5 to 9 mph. Smoke dispersal.....Excellent (141500 knot-ft) decreasing to poor (3100 knot-ft). Mixing height.......7100 ft AGL decreasing to 500 ft AGL. Transport winds.....Southwest 11 to 20 knots shifting to the west 6 to 10 knots in the late evening and overnight. TIME (MST) 6 PM 9 PM MIDNGT 3 AM Sky (%).........21 53 20 68 Weather cov..... Weather type....NONE NONE NONE NONE Tstm cov........ CWR.............0 0 0 0 Temp............57 48 46 44 RH..............24 36 41 43 20 FT wind......SW 9G25 WNW 5G13 NW 3G7 NW 4G6 Mix hgt (ft)....7100 600 600 500 Transport wind..SW 20 W 10 W 9 W 6 Vrate kt-ft/1K..142 6 5 3 Ventrate Cat....EXNT POOR POOR POOR .WEDNESDAY... Sky/weather.........Partly sunny. Chance of pcpn......0 percent. Max temperature.....59-62 degrees. Min humidity........12-15 percent. 20-foot winds.......Northwest winds in the morning up to 8 mph, becoming southwest winds 6 to 12 mph with gusts to around 20 mph after 1100 hours. Smoke dispersal.....Poor (3900 knot-ft) increasing to excellent (142500 knot-ft). Mixing height.......2100 ft AGL increasing to 9900 ft AGL. Transport winds.....Southwest 7 to 15 knots increasing to 16 to 18 knots in the late morning and afternoon. TIME (MST) 6 AM 9 AM NOON 3 PM Sky (%).........70 48 58 58 Weather cov..... Weather type....NONE NONE NONE NONE Tstm cov........ CWR.............0 0 0 0 Temp............45 56 58 60 RH..............42 24 17 14 20 FT wind......W 2G6 S 7G17 S 8G20 SW 9G20 Mix hgt (ft)....600 5100 9000 9400 Transport wind..SW 7 S 15 S 16 SW 16 Vrate kt-ft/1K..4 77 144 150 Ventrate Cat....POOR VYGD EXNT EXNT $$ Forecaster...STRONGMAN Requested by...FMO Type of request...WILDFIRE .TAG 2613300.6/TWC .DELDT 05/19/26 .FormatterVersion 2.0.0 .EMAIL Tedd.Hurtado@usda.gov,kohl.pelts@usda.gov,azsdc@firenet.gov,matthew.moe@usda.gov Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson