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000
FNUS73 KDMX 241244
FWSDMX

Spot Forecast for Rock Creek Olaf...IowaDNR
National Weather Service Des Moines IA
744 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 63.
Min humidity........27 percent.
Wind (20 ft)........Northeast winds 6 to 9 mph.
Mixing height.......4500 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   3   3
Weather cov.....
Weather type....
Tstm cov........
Temp............46  48  52  55  59  61  62  63  63
RH..............66  58  50  41  36  32  30  29  27
20 FT wind dir..NE  NE  NE  NE  NE  NE  E   E   E
20 FT wind spd..9   9   8   8   8   7   7   6   6
20 FT wind gust.    10  10  10  9   9   8   7   8
Mix hgt (kft)...1.8 2.2 2.6 3.2 3.7 4.0 4.3 4.5 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  26  27  26

.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 8 to 14 mph.
Smoke dispersal.....Fair (24300 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     30     30     42     41
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............63     57     49     47     45     43
RH..............27     37     52     53     62     70
20 ft wind......E 6    E 7    E 7    E 9    SE 9   SE 10
20 ft wind gust.7      10     12     14     16     16
Mix hgt (ft)....3400   2000   400    400    400    400
Transport wind..E 8    SE 10  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/100024     18     4      4      4      5

.THURSDAY...

Sky/weather.........Partly sunny (50-60 percent).
Max temperature.....Around 66.
Min humidity........40 percent.
Wind (20 ft)........Southeast winds 10 to 18 mph.
Mixing height.......4300 ft AGL.
Transport winds.....Southeast 14 to 23 mph increasing to around 24
                    mph late in the afternoon.
Smoke dispersal.....Poor (5400 knot-ft) early in the morning
                    increasing to excellent (90900 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        50        48        59
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Temp............43        48        60        65
RH..............76        71        49        41
20 FT wind......SE 10G16  SE 13G20  SE 17G23  SE 18G24
Mix hgt (ft)....400       1500      3300      4200
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        86

$$
Forecaster...Dodson
Requested by...Tanner Venteicher
Type of request...PRESCRIBED
.TAG 2412216.0/DMX
.DELDT 04/24/24
.FormatterVersion 2.0.0
.EMAIL tanner.venteicher@dnr.iowa.gov