FNUS73 KOAX 071352 FWSOAX Spot Forecast for Westendorf...Iowa DNR National Weather Service Omaha/Valley NE 852 AM CDT Mon Apr 7 2025 Forecast is based on ignition time of 1000 CDT on April 07. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Northerly wind speeds of 15 to 20 mph with gusts up to 25 mph will occur today while slowly relaxing over the course of the day. By 7pm, wind speeds of 4-8 mph are expected from about 30 degrees. Minimum RH will drop to 22-27% today with mixing heights reaching almost 5,000 ft. Smoke dispersal is expected to be very good. Tuesday will see stronger south southeasterly winds of 20 to 25 mph with gusts up to 30 mph into the late afternoon hours. Minimum RH will be at 25 to 35% resulting in high to very high fire danger. Smoke dispersal will be very good areawide with mixing heights similar to Monday. Strongest Possible Wind Speeds on Day of Burn: 30 mph gust around ignition time Lowest Possible Relative Humidity on Day of Burn: 22% .REST OF TODAY... Sky/weather.........Sunny (0-5 percent). Temperature.........35 at ignition...Max 47. RH..................53 percent at ignition...Min 24 percent. Eye level winds.....North winds 6 to 9 mph. Gusts up to 23 mph late in the morning. Surface winds (mph).North winds 10 to 15 mph. Gusts up to 23 mph late in the morning. Wind (20 ft)........Winds north at 12 mph at ignition...otherwise North winds 9 to 12 mph. Gusts up to 23 mph late in the morning. Mixing height.......2900 ft AGL at ignition...otherwise 4900 ft AGL. Transport winds.....North 15 to 21 mph. Smoke dispersal.....Good /52000 knot-ft/ at ignition. Max...excellent /71500 knot-ft/. GFDI................4. .TONIGHT... Sky/weather.........Clear (0-10 percent). Temperature.........Min 25. RH..................Max 66 percent. Eye level winds.....Northeast winds up to 5 mph early in the evening becoming light, then becoming southeast around 4 mph after 3 am. Surface winds (mph).North winds around 9 mph shifting to the northeast 6 to 8 mph early in the evening, then becoming light in the late evening and overnight becoming southeast around 6 mph after 3 am. Wind (20 ft)........North winds around 8 mph shifting to the northeast 5 to 6 mph early in the evening, then becoming light in the late evening and overnight becoming southeast around 5 mph after 3 am. Mixing height.......400 ft AGL. Transport winds.....North 8 to 12 mph shifting to the southeast 10 to 12 mph after 3 am. Smoke dispersal.....Good (51600 knot-ft) early in the evening decreasing to poor (600 knot-ft) late in the night. GFDI................2. .TUESDAY... Sky/weather.........Mostly sunny (25-35 percent). Temperature.........Max 59. RH..................Min 30 percent. Eye level winds.....Southeast winds up to 10 mph increasing to south 10 to 11 mph with gusts to around 16 mph in the afternoon. Surface winds (mph).South winds 6 to 19 mph with gusts to around 26 mph. Wind (20 ft)........Southeast winds 6 to 16 mph with gusts to around 21 mph. Mixing height.......4300 ft AGL. Transport winds.....South 10 to 18 mph increasing to 20 to 24 mph in the late morning and afternoon. Smoke dispersal.....Poor (2300 knot-ft) early in the morningincreasing to excellent (86100 knot-ft) in the afternoon. GFDI................5. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY... Partly cloudy. Slight chance of showers. Lows in the upper 30s. Highs in the mid 60s. Northeast winds around 11 mph. .THURSDAY... Partly cloudy. Chance of showers. Lows in the lower 40s. Highs in the lower 60s. Northwest winds around 11 mph. .FRIDAY... Mostly clear. Lows in the mid 30s. Highs in the lower 60s. North winds around 7 mph. $$ Forecaster...Nicolaisen Requested by...Johnathan McAndrews Type of request...PRESCRIBED .TAG 2509050.0/OAX .DELDT 04/07/25 .FormatterVersion 2.0.0 .EMAIL johnathan.mcandrews@dnr.iowa.gov