Text Products for FWS Issued by DMX

Spot Forecast
Issued by NWS Des Moines, IA
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FNUS73 KDMX 241236
FWSDMX

Spot Forecast for Chichaqua Prescribed Fire - 118th Timber/Wet...Polk County Conservation Board
National Weather Service Des Moines IA
736 AM CDT Wed Apr 24 2024

Forecast is based on ignition time of 0800 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 today
starting out of the north northeast this morning, then switching
to more easterly by mid day and southeasterly by this evening.
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 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 (5-15 percent).
Max temperature.....Around 65.
Min humidity........30 percent.
Wind (20 ft)........Northeast winds 6 to 7 mph shifting to the east
                    around 6 mph late in the afternoon.
Mixing height.......4700 ft AGL.
Transport winds.....Northeast 7 to 13 mph.
Smoke dispersal.....Fair (14200 knot-ft).
GFDI................0.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........10  14  6   4   2   1   4   3   2   3
Weather cov.....
Weather type....
Tstm cov........
Temp............44  46  49  53  57  59  62  62  64  64
RH..............73  65  58  50  42  37  33  33  30  30
20 FT wind dir..NE  NE  E   E   E   E   E   E   E   E
20 FT wind spd..6   7   7   7   7   7   6   6   6   6
20 FT wind gust.        10  9   9   8   8   8   7   8
Mix hgt (kft)...1.3 1.7 2.1 2.6 3.2 3.8 4.1 4.4 4.7 4.3
Transp wind dir.NE  NE  NE  NE  NE  NE  NE  NE  NE  E
Transp wind spd.13  10  8   7   7   8   8   7   7   7
GFDI............0   0   0   0   0   0   0   0   0   0
Haines index....4   4   4   4   4   5   5   5   5   5
SDspl kt-ft/100014  16  15  16  20  27  28  28  28  26

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (45-55 percent) then becoming
                    partly cloudy (40-50 percent).
Min temperature.....Around 43.
Max humidity........73 percent.
Wind (20 ft)........Southeast winds 6 to 9 mph.
Mixing height.......400 ft AGL.
Transport winds.....Southeast 7 to 14 mph.
Smoke dispersal.....Fair (25800 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 (%).........15     23     31     49     49     43
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............63     59     51     50     47     44
RH..............30     37     50     52     63     70
20 ft wind......SE 6   SE 6   E 7    SE 8   SE 9   SE 8
20 ft wind gust.8      10     12     14     16     15
Mix hgt (ft)....4000   2600   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/100026     21     4      4      5      5

.THURSDAY...

Sky/weather.........Partly sunny (55-65 percent).
Max temperature.....Around 67.
Min humidity........43 percent.
Wind (20 ft)........Southeast winds 10 to 18 mph.
Mixing height.......4700 ft AGL.
Transport winds.....Southeast 14 to 23 mph increasing to 24 to 25
                    mph late in the afternoon.
Smoke dispersal.....Poor (5700 knot-ft) early in the morning
                    increasing to excellent (103300 knot-ft) in the
                    afternoon.
GFDI................1.
Haines Index........4 or low potential for large plume dominated
                    fire growth.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........50        49        53        67
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Temp............44        49        60        65
RH..............73        71        51        45
20 FT wind......SE 10G16  SE 14G20  SE 17G24  SE 18G26
Mix hgt (ft)....500       1500      3300      4400
Transport wind..SE 14     SE 18     SE 22     SE 24
GFDI............0         0         0         1
Haines index....4         4         4         4
SDspl kt-ft/10006         24        64        95

$$
Forecaster...Dodson
Requested by...Douglas Todey
Type of request...PRESCRIBED
.TAG 2412204.0/DMX
.DELDT 04/24/24
.FormatterVersion 2.0.0
.EMAIL douglas.todey@polkcountyiowa.gov
National Weather Service Weather Forecast Office
