Spot Forecast Issued by NWS Des Moines, IA
000
FNUS73 KDMX 241245
FWSDMX
Spot Forecast for Rock Creek Deppe...IowaDNR
National Weather Service Des Moines IA
745 AM CDT Wed Apr 24 2024
Forecast is based on ignition time of 0900 CDT on April 24.
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...
Minimal fire weather concerns today. Winds will be light starting
out of the north northeast this morning, then switching to more
easterly by mid day and southeasterly by late afternoon. With the
lighter winds, expect some variation of the prevailing easterly
winds between northeast and southeast this afternoon. Relative
humidities will also bottom out around 25 to 30 percent. The
morning inversion should erode by mid- day as well, becoming fully
mixed around noon to 1 pm.
.REST OF TODAY...
Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 62.
Min humidity........28 percent.
Wind (20 ft)........Northeast winds 6 to 9 mph.
Mixing height.......4600 ft AGL.
Transport winds.....Northeast 7 to 12 mph.
Smoke dispersal.....Fair (15400 knot-ft).
GFDI................0.
Haines Index........4 to 5 or low to moderate potential for large
plume dominated fire growth.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........2 6 4 1 1 3 2 2 3
Weather cov.....
Weather type....
Tstm cov........
Temp............45 48 52 55 58 60 62 62 62
RH..............67 58 48 41 36 33 30 28 28
20 FT wind dir..NE NE NE NE NE NE E E E
20 FT wind spd..9 9 9 8 8 7 7 6 6
20 FT wind gust. 12 10 10 9 9 8 7 8
Mix hgt (kft)...1.8 2.2 2.7 3.2 3.7 4.0 4.3 4.6 4.0
Transp wind dir.NE NE NE NE N NE NE NE NE
Transp wind spd.12 8 8 8 8 8 7 7 7
GFDI............0 0 0 0 0 0 0 0 0
Haines index....4 4 4 4 5 5 5 5 5
SDspl kt-ft/100018 15 19 23 26 27 27 27 24
.TONIGHT...
Sky/weather.........Mostly clear (20-30 percent).
Min temperature.....Around 41.
Max humidity........73 percent.
Wind (20 ft)........Southeast winds 6 to 10 mph.
Mixing height.......400 ft AGL.
Transport winds.....Southeast 7 to 14 mph.
Smoke dispersal.....Fair (22200 knot-ft) early in the evening
decreasing to poor (4200 knot-ft) late in the
night.
GFDI................0.
Haines Index........4 to 5 or low to moderate potential for large
plume dominated fire growth.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........4 17 29 30 42 41
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
Temp............62 56 48 46 45 43
RH..............28 38 54 55 62 70
20 ft wind......E 6 E 7 E 7 SE 8 SE 9 SE 10
20 ft wind gust.7 10 12 14 16 16
Mix hgt (ft)....3500 2100 400 400 400 400
Transport wind..E 7 SE 9 SE 12 SE 12 SE 13 SE 14
GFDI............0 0 0 0 0 0
Haines index....5 5 5 5 4 4
SDspl kt-ft/100022 17 4 4 4 5
.THURSDAY...
Sky/weather.........Partly sunny (50-60 percent).
Max temperature.....Around 65.
Min humidity........40 percent.
Wind (20 ft)........Southeast winds 10 to 18 mph.
Mixing height.......4600 ft AGL.
Transport winds.....Southeast 14 to 23 mph increasing to 24 to 25
mph late in the afternoon.
Smoke dispersal.....Poor (5400 knot-ft) early in the morning
increasing to excellent (100300 knot-ft) in the
afternoon.
GFDI................0.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (CDT) 6 AM 9 AM NOON 3 PM
Sky (%).........49 49 47 61
Weather cov.....
Weather type....NONE NONE NONE NONE
Tstm cov........
Temp............42 48 60 65
RH..............76 68 49 41
20 FT wind......SE 10G16 SE 13G20 SE 17G23 SE 18G25
Mix hgt (ft)....400 1500 3300 4400
Transport wind..SE 14 SE 18 SE 22 SE 24
GFDI............0 0 0 0
Haines index....4 4 4 4
SDspl kt-ft/10005 25 62 92
$$
Forecaster...Dodson
Requested by...Tanner Venteicher
Type of request...PRESCRIBED
.TAG 2412217.0/DMX
.DELDT 04/24/24
.FormatterVersion 2.0.0
.EMAIL tanner.venteicher@dnr.iowa.gov