FNUS74 KMOB 181222 FWSMOB Spot Forecast for Chick 400...USFS National Weather Service Mobile AL 722 AM CDT Mon May 18 2026 Forecast is based on ignition time of 1000 CDT on May 18. If conditions become unrepresentative...contact the National Weather Service. ...HIGH DISPERSION INDEX AROUND 77 EXPECTED REST OF TODAY OVER THE BURN AREA... ...HIGH DISPERSION INDEX AROUND 76 EXPECTED TUESDAY OVER THE BURN AREA... .DISCUSSION...Isolated showers and storms will be possible this afternoon with a 20% chance of rain. Afternoon minimum relative humidity will be near 55 to 60%. 20 ft wind gusts will be up to near 20 mph out of the south and transport winds will be mostly south-southeasterly. Afternoon dispersion values will be good. For Tuesday, rain chances will be less than 10 percent with minimum relative humidity values near 55 to 60%. 20 ft wind gusts will be up to near 20 mph with transport winds once again out of the south-southeast. Afternoon dispersion values will be good. Max Lvori values will be around 6 to 7 early Tuesday morning. Fog potential and other remarks...Patchy fog will be possible early this morning with visibilities around 1 to 3 miles. Fog looks more likely on Tuesday morning with some areas dropping to less than 1 mile. .REST OF TODAY... Sky/weather.........Partly sunny (45-55 percent). Chance of pcpn......10 percent. Max temperature.....Around 87. Min humidity........61 percent. Wind (20 ft)........South winds 7 to 10 mph. Mixing height.......4500 ft AGL. Mixing height (m)...762-1372 meters AGL. Transport winds.....South 14 to 16 mph. Transport winds m/s.South 6 to 7 meters/second. Dispersion index....42 increasing to 56 late in the morning, then increasing to 74 early in the afternoon decreasing to 59 late in the afternoon increasing to 68. LVORI...............2. Stability class.....3. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........63 58 49 43 46 45 45 38 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).10 10 10 10 10 10 10 10 Temp............78 82 82 84 86 86 86 86 RH..............79 69 69 65 61 61 61 61 20 FT wind dir..SSE SSE SSE SSE SSE SSE SSE SSE 20 FT wind spd..8 9 9 10 10 12 12 10 20 FT wind gust.17 17 17 17 17 18 18 18 Mix hgt (kft)...2.5 3.3 3.9 4.2 4.5 4.2 4.3 4.3 Mix hgt (km)....0.8 1.0 1.2 1.3 1.4 1.3 1.3 1.3 Transp wind dir.SSE SSE S S S S S S Transp wind spd.14 15 15 15 15 15 16 16 Trans wind dir..SSE SSE S S S S S S Trans spd (m/s).6 7 7 7 7 7 7 7 Dispersion idx..42 56 71 75 77 58 59 68 LVORI...........3 1 1 1 1 1 1 1 .TONIGHT... Sky/weather.........Partly cloudy (35-45 percent) then becoming mostly cloudy (65-75 percent). Patchy fog overnight. Chance of pcpn......10 percent. Min temperature.....Around 71. Max humidity........93 percent. Wind (20 ft)........South winds 7 to 8 mph early in the evening becoming light. Mixing height.......500 ft AGL. Mixing height (m)...152-1311 meters AGL. Transport winds.....South 7 to 14 mph. Transport winds m/s.South 3 to 6 meters/second. Dispersion index....66 decreasing to 6. LVORI...............4. Stability class.....4. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........35 38 43 45 43 37 38 58 64 73 82 80 Weather cov..... PTY PTY PTY PTY Weather type.... FOG FOG FOG FOG Tstm cov........ Chc of pcpn (%).10 0 0 0 0 0 0 0 0 0 0 0 Temp............85 82 79 75 74 74 73 73 72 72 72 71 RH..............63 69 77 84 87 87 90 90 93 90 90 93 20 FT wind dir..SSE SSE S S SSE SSE SSE SSE SSE SSE SSE SE 20 FT wind spd..9 8 5 5 3 3 3 3 2 2 2 2 20 FT wind gust.18 17 16 15 14 13 13 12 10 9 8 9 Mix hgt (kft)...4.3 0.7 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Mix hgt (km)....1.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Transp wind dir.S S S S S S S S S S S SSE Transp wind spd.14 12 12 12 12 10 10 9 9 8 7 8 Trans wind dir..S S S S S S S S S S S SSE Trans spd (m/s).6 5 5 5 5 4 4 4 4 4 3 4 Dispersion idx..66 8 7 8 6 5 5 4 4 4 3 4 LVORI...........1 3 4 4 5 5 6 6 6 6 6 6 .TUESDAY... Sky/weather.........Partly sunny (60-70 percent). Patchy fog early in the morning. Slight chance of showers and thunderstorms in the afternoon. Chance of pcpn......20 percent. Max temperature.....Around 89. Min humidity........57 percent. Wind (20 ft)........Light winds becoming south 5 to 7 mph in the late morning and afternoon. Gusty and erratic winds expected near thunderstorms in the afternoon. Mixing height.......6000 ft AGL. Mixing height (m)...152-1829 meters AGL. Transport winds.....South 8 to 13 mph. Transport winds m/s.South 4 to 6 meters/second. Dispersion index....7 increasing to 18 early in the morning, then increasing to 28 late in the morning increasing to 47 late in the morning increasing to 60 increasing to 72 early in the afternoon decreasing to 36. LVORI...............4. Stability class.....2. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........77 81 71 66 65 51 59 47 58 63 64 72 Weather cov.....PTY PTY SCH SCH SCH SCH SCH Weather type....FOG FOG RW RW RW RW RW Tstm cov........ SCH SCH SCH SCH SCH Chc of pcpn (%).0 0 0 0 0 0 0 20 20 20 20 20 Temp............72 72 73 76 80 82 84 87 87 87 88 87 RH..............90 90 90 82 74 69 65 59 59 59 57 61 20 FT wind dir..SE SE SSE SSE SSE SSE SSE S S S S S 20 FT wind spd..3 3 3 6 7 8 8 7 7 7 7 7 20 FT wind gust.10 10 12 14 14 15 14 14 14 13 14 15 Mix hgt (kft)...0.5 0.8 1.3 1.9 2.7 3.3 4.0 4.6 6.0 5.4 3.3 3.3 Mix hgt (km)....0.2 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.8 1.6 1.0 1.0 Transp wind dir.SSE SSE SSE SSE S S S S S S S S Transp wind spd.8 9 10 10 13 13 13 13 12 12 9 10 Trans wind dir..SSE SSE SSE SSE S S S S S S S S Trans spd (m/s).4 4 4 4 6 6 6 6 5 5 4 4 Dispersion idx..4 10 18 28 43 50 58 62 76 68 34 38 LVORI...........6 5 4 3 3 1 1 1 1 1 1 1 $$ Forecaster...8 Requested by...Rodney Landrum Type of request...PRESCRIBED .TAG 2613908.0/MOB .DELDT 05/18/26 .FormatterVersion 2.0.0 .EMAIL rodney.landrum@usda.gov