Spot Forecast Issued by NWS Des Moines, IA
000
FNUS73 KDMX 201008
FWSDMX
Spot Forecast for Burrows Pond...USFWS
National Weather Service Des Moines IA
508 AM CDT Sat Apr 20 2024
Forecast is based on ignition time of 0800 CDT on April 20.
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...
Mostly cloudy skies are expected for much of the day with a brisk
northwest wind. Temperatures remain cool for this time a year with
minimum relative humidity values dropping to around 40 percent by
mid afternoon.
.REST OF TODAY...
Sky/weather.........Sunny (20-30 percent) then becoming partly
sunny (60-70 percent).
Temperature.........30 at ignition...Max 48.
RH..................75 percent at ignition...Min 40 percent.
Wind (20 ft)........Winds northwest at 14 mph at
ignition...otherwise Northwest winds 14 to 18
mph.
Mixing height.......1800 ft AGL at ignition...otherwise 6400 ft
AGL.
Transport winds.....Northwest 22 to 25 mph.
Smoke dispersal.....Good /33700 knot-ft/ at ignition.
Max...excellent /128600 knot-ft/.
GFDI................2.
Haines Index........2 or very low potential for large plume
dominated fire growth at ignition...max 3.
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........4 7 25 31 45 60 63 67 67 66
Weather cov.....
Weather type....
Tstm cov........
Temp............30 33 38 40 42 43 45 46 47 47
RH..............75 66 54 50 46 47 43 42 40 40
20 FT wind dir..NW NW NW NW NW NW NW NW NW NW
20 FT wind spd..14 16 18 18 18 18 17 17 17 16
20 FT wind gust.20 22 22 22 23 24 23 23 23 22
Mix hgt (kft)...1.8 3.5 4.3 4.7 5.4 5.7 5.7 6.1 6.4 6.4
Transp wind dir.NW NW NW NW NW NW NW NW NW NW
Transp wind spd.22 25 25 24 24 24 24 23 23 23
GFDI............1 1 2 2 3 3 3 3 3 3
Haines index....2 2 2 2 2 3 3 3 3 3
SDspl kt-ft/100034 78 94 100 113 119 120 123 129 128
.TONIGHT...
Sky/weather.........Mostly cloudy (55-65 percent) then becoming
mostly clear (15-25 percent). Widespread frost
overnight.
Temperature.........Min 27.
RH..................Max 81 percent.
Wind (20 ft)........Northwest winds 8 to 14 mph.
Mixing height.......400 ft AGL.
Transport winds.....Northwest 14 to 23 mph decreasing to 12 to 13
mph in the late evening and overnight.
Smoke dispersal.....Excellent (96400 knot-ft) decreasing to fair
(14100 knot-ft) early in the evening decreasing
to poor (4000 knot-ft) late in the night early
in the evening.
GFDI................1.
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........66 53 28 9 2 2
Weather cov..... WIDSPD WIDSPD
Weather type....NONE NONE NONE NONE FROST FROST
Tstm cov........
Temp............47 44 38 35 31 29
RH..............40 45 57 64 75 81
20 ft wind......NW 14 NW 10 NW 9 NW 8 W 8 W 8
20 ft wind gust.18 15 14 14 13 13
Mix hgt (ft)....6000 1200 500 400 400 400
Transport wind..NW 23 NW 14 NW 12 NW 13 NW 12 W 13
GFDI............2 1 1 1 1 0
Haines index....3 4 4 4 4 4
SDspl kt-ft/1000120 14 5 5 4 4
.SUNDAY...
Sky/weather.........Sunny (0-5 percent). Widespread frost early in
the morning.
Temperature.........Max 58.
RH..................Min 27 percent.
Wind (20 ft)........West winds 9 to 13 mph.
Mixing height.......5000 ft AGL.
Transport winds.....West 13 to 17 mph.
Smoke dispersal.....Poor (4100 knot-ft) early in the morning
increasing to excellent (71500 knot-ft) in the
afternoon.
GFDI................2.
Haines Index........4 or low potential for large plume dominated
fire growth.
TIME (CDT) 6 AM 9 AM NOON 3 PM
Sky (%).........2 1 1 1
Weather cov.....WIDSPD
Weather type....FROST NONE NONE NONE
Tstm cov........
Temp............27 36 50 56
RH..............88 64 34 27
20 FT wind......W 9G13 W 10G15 NW 13G17 W 13G17
Mix hgt (ft)....400 1300 4400 4900
Transport wind..W 13 W 15 W 17 W 16
GFDI............0 1 2 3
Haines index....4 4 4 4
SDspl kt-ft/10004 17 66 71
$$
Forecaster...Cogil
Requested by...Chad Loreth
Type of request...PRESCRIBED
.TAG 2411445.0/DMX
.DELDT 04/20/24
.FormatterVersion 2.0.0
.EMAIL chad_loreth@fws.gov