Spot Forecast
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
565 FNUS73 KDMX 011231 FWSDMX Spot Forecast for Oxbow Bottoms Rx...Iowa DNR National Weather Service Des Moines IA 731 AM CDT Wed May 1 2024 Forecast is based on ignition time of 1000 CDT on May 01. If conditions become unrepresentative...contact the National Weather Service. An initial observation at ignition and a mid burn observation are required. Please relay them to the National Weather Service for each prescribed burn. .DISCUSSION... Dry conditions to start the day along with westerly winds at 5 to 10 mph. Winds gradually shift through the day, turning to our the north this afternoon and eventually easterly by tonight. Min RH values bottom out in the 30 percent range as temps warm to near 70 this afternoon. Low chances for isolated showers through the day, but the bulk of the wetting rainfall ahead should wait until chances for showers and thunderstorms increase by late afternoon and evening, continuing overnight into Thursday. .REST OF TODAY... Sky/weather.........Partly sunny (60-70 percent). Max temperature.....Around 71. Min humidity........32 percent. Wind (20 ft)........Northwest winds 10 to 14 mph shifting to the north 9 to 10 mph late in the afternoon. Mixing height.......3200 ft AGL. Transport winds.....Northwest 9 to 18 mph shifting to the north around 9 mph late in the afternoon. Smoke dispersal.....Fair (23700 knot-ft) early in the morning increasing to good (47200 knot-ft) in the afternoon. GFDI................0. Haines Index........5 or moderate potential for large plume dominated fire growth. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........71 69 59 56 61 61 63 64 Weather cov..... Weather type.... Tstm cov........ Temp............60 61 63 66 68 71 71 71 RH..............58 51 46 41 37 34 32 32 20 FT wind dir..NW NW NW NW NW N N N 20 FT wind spd..14 13 13 13 10 10 9 9 20 FT wind gust.18 17 17 17 15 15 14 13 Mix hgt (kft)...1.6 1.9 2.7 3.1 3.1 3.0 3.0 3.2 Transp wind dir.NW NW NW NW N N N N Transp wind spd.17 18 17 17 14 13 9 9 GFDI............0 0 0 0 0 0 0 0 Haines index....5 5 5 5 5 5 5 5 SDspl kt-ft/100025 31 41 47 38 33 24 26 .TONIGHT... Sky/weather.........Mostly cloudy (70-80 percent). Chance of showers and thunderstorms in the evening, then rain showers with thunderstorms likely overnight. Min temperature.....Around 53. Max humidity........80 percent. Wind (20 ft)........Northeast winds 8 to 10 mph shifting to the east 12 to 16 mph late in the evening. Gusty and erratic winds expected near thunderstorms in the evening. Gusty and erratic winds expected near thunderstorms overnight. Mixing height.......500 ft AGL. Transport winds.....Northeast 8 to 15 mph shifting to the east 14 to 23 mph overnight. Smoke dispersal.....Fair (18400 knot-ft) early in the evening decreasing to poor (3500 knot-ft) late in the night. GFDI................0. Haines Index........3 to 5 or very low to moderate potential for large plume dominated fire growth. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM Sky (%).........68 58 68 74 82 90 Weather cov.....S CHC CHANCE CHANCE LIKELY DEFNTE DEFNTE Weather type....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR Tstm cov........ CHANCE CHANCE LIKELY LIKELY LIKELY Temp............70 65 58 55 55 54 RH..............33 45 57 66 69 74 20 ft wind......N 8 NE 8 NE 10 E 13 E 13 E 15 20 ft wind gust.12 12 15 17 18 21 Mix hgt (ft)....2200 500 600 600 600 900 Transport wind..N 9 NE 9 E 14 E 14 E 18 E 22 GFDI............0 0 0 0 0 0 Haines index....5 5 5 5 3 3 SDspl kt-ft/100018 4 7 7 10 16 .THURSDAY... Sky/weather.........Cloudy (85-95 percent). Rain showers with thunderstorms likely. Max temperature.....Around 69. Min humidity........78 percent. Wind (20 ft)........Southeast winds 17 to 20 mph shifting to the south late in the afternoon. Gusty and erratic winds expected near thunderstorms. Mixing height.......1500 ft AGL. Transport winds.....Southeast 23 to 29 mph shifting to the south 18 to 21 mph in the afternoon. Smoke dispersal.....Fair (17700 knot-ft) early in the morning increasing to good (33300 knot-ft) in the afternoon. GFDI................0. Haines Index........2 to 3 or very low potential for large plume dominated fire growth. TIME (CDT) 6 AM 9 AM NOON 3 PM Sky (%).........91 93 93 89 Weather cov.....DEFNTE DEFNTE DEFNTE DEFNTE Weather type....RNSHWR RNSHWR RNSHWR RNSHWR Tstm cov........LIKELY LIKELY LIKELY LIKELY Temp............53 57 63 65 RH..............80 80 84 90 20 FT wind......E 17G24 SE 18G26 SE 18G25 S 16G23 Mix hgt (ft)....1000 1400 1400 1300 Transport wind..E 23 SE 26 S 24 S 21 GFDI............0 0 0 0 Haines index....3 2 2 3 SDspl kt-ft/100020 33 30 23 $$ Forecaster...Martin Requested by...Blaine Becker Type of request...PRESCRIBED .TAG 2412891.0/DMX .DELDT 05/01/24 .FormatterVersion 2.0.0 .EMAIL blaine.becker@dnr.iowa.gov