Suppression Forecast
Issued by NWS Omaha/Valley, NE
Issued by NWS Omaha/Valley, NE
Versions:
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108 FNUS73 KOAX 261343 FWSOAX Spot Forecast for Hitchcock northeast...Pottawattamie County Conservation National Weather Service Omaha/Valley NE 743 AM CST Tue Nov 26 2024 Forecast is based on ignition time of 1200 CST on November 26. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Weather conditions will remain fairly calm today with increasing cloud cover through the afternoon. Winds will remain out of the southwest at ignition time, gradually backing to southerly this afternoon. Winds will increase through the afternoon with maximum sustained speeds of 12-15 mph with gusts up to 19-23 mph expected. Winds will gradually calm later this afternoon, with southeasterly speeds under 5 mph expected overnight. Minimum RH values this afternoon will remain in 42-48% range before rebounding near 80% overnight. Afternoon mixing heights will peak around 1750-2000 ft, leading to fair smoke dispersal. Strongest Possible Wind Speeds on Day of Burn: 23 mph Lowest Possible Relative Humidity on Day of Burn: 42 percent .REST OF TODAY... Sky/weather.........Mostly cloudy (80-90 percent). Max temperature.....Around 45. Min humidity........44 percent. Eye level winds.....South winds around 4 mph. Surface winds (mph).South winds 6 to 8 mph. Wind (20 ft)........South winds 5 to 7 mph. Mixing height.......1600 ft AGL. Transport winds.....South around 17 mph. Smoke dispersal.....Poor (10900 knot-ft) early in the morning increasing to fair (26900 knot-ft) in the afternoon. GFDI................3. Haines Index........5 or moderate potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Mostly cloudy (65-75 percent). Min temperature.....Around 31. Max humidity........82 percent. Eye level winds.....Light winds. Surface winds (mph).Light winds. Wind (20 ft)........Light winds. Mixing height.......400 ft AGL. Transport winds.....South around 9 mph. Smoke dispersal.....Poor (1400 knot-ft). GFDI................1. Haines Index........4 or low potential for large plume dominated fire growth. .WEDNESDAY... Sky/weather.........Mostly cloudy (80-90 percent) then becoming mostly sunny (40-50 percent). Max temperature.....Around 41. Min humidity........53 percent. Eye level winds.....North winds up to 5 mph. Surface winds (mph).North winds 6 to 9 mph. Wind (20 ft)........North winds 5 to 8 mph. Mixing height.......2500 ft AGL. Transport winds.....North around 12 mph. Smoke dispersal.....Poor (1400 knot-ft) early in the morning increasing to good (39500 knot-ft) in the afternoon. GFDI................3. Haines Index........4 or low potential for large plume dominated fire growth. .FORECAST DAYS 3 THROUGH 5... .THANKSGIVING DAY... Mostly clear. Lows in the lower 20s. Highs in the mid 30s. Northwest winds around 5 mph. .FRIDAY... Mostly clear. Lows around 15. Highs in the upper 20s. Northwest winds around 5 mph. .SATURDAY... Mostly cloudy. Chance of snow. Lows around 17. Highs in the mid 20s. Light winds. $$ Forecaster...Wood Requested by...chad graeve Type of request...PRESCRIBED .TAG 2427358.0/OAX .DELDT 11/26/24 .FormatterVersion 2.0.0 .EMAIL chad.graeve@pottcounty-ia.gov