523
FNUS73 KMPX 051127
FWSMPX

Spot Forecast for Prairie Big Woods WMA Rx...Minnesota DNR
National Weather Service Twin Cities/Chanhassen MN
627 AM CDT Sun May 5 2024

Forecast is based on ignition time of 0700 CDT on May 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

Please contact our office if you have questions or concerns with
this forecast.

.DISCUSSION...
Light & calm winds at ignition will become southerly by mid to late
morning around 5 to 8 mph. Gusts are not forecast to be an issue today.
RH values will drop below 40% this afternoon as temperatures warm up
quickly with mostly clear skies forecast throughout the day. Transport
winds will tick up after 12pm between 10 to 15mph.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Temperature.........41 at ignition...Max 68.
RH..................92 percent at ignition...Min 32 percent.
Wind (20 ft)........Winds west at 2 mph at ignition...otherwise
                    Light winds becoming south 5 to 7 mph late in
                    the morning, then increasing to around 7 mph
                    late in the afternoon.
Smoke dispersal.....Poor /1800 knot-ft/ at ignition.
                    Max...excellent /60100 knot-ft/.
Mixing height.......400 ft AGL at ignition...otherwise 6400 ft AGL.
Transport winds.....West 5 to 8 mph shifting to the south 8 to 12
                    mph in the afternoon.
Haines Index........4 or low potential for large plume dominated
                    fire growth at ignition...max 4.

TIME (CDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
Sky cover.......CLR CLR CLR CLR CLR CLR MCR CLR CLR CLR CLR CLR
Weather cov.....
Weather type....
Tstm cov........
Temp............41  45  50  57  60  62  64  66  67  68  68  67
RH..............92  86  77  57  47  41  37  34  33  32  32  33
20 FT wind dir..W   W   SW  SW  SW  SW  S   S   S   S   S   S
20 FT wind spd..2   2   2   3   5   5   6   7   7   7   7   8
20 FT wind gust.    3   3   6   7   7   9   10  10  10  10  13
Mix hgt (kft)...0.4 0.4 0.6 2.8 5.1 5.9 6.4 6.3 6.2 6.2 6.0 5.9
Transp wind dir.W   W   W   W   W   SW  SW  S   S   S   S   S
Transp wind spd.6   5   5   6   7   8   9   8   9   10  12  13
Haines index....4   4   4   4   4   4   3   3   3   3   3   3

.TONIGHT...

Sky/weather.........Mostly clear (0-10 percent).
Temperature.........Min 46.
RH..................Max 89 percent.
Wind (20 ft)........Southeast winds 6 to 9 mph.
Smoke dispersal.....Excellent (65000 knot-ft) early in the evening
                    decreasing to poor (4600 knot-ft) late in the
                    night.
Mixing height.......400 ft AGL.
Transport winds.....South 12 to 16 mph.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

.MONDAY...

Sky/weather.........Mostly sunny (35-45 percent) then becoming
                    mostly cloudy (65-75 percent).
Temperature.........Max 72.
RH..................Min 46 percent.
Wind (20 ft)........Southeast winds 12 to 21 mph with gusts to
                    around 32 mph increasing to 22 to 23 mph with
                    gusts to around 36 mph late in the afternoon.
Smoke dispersal.....Poor (6700 knot-ft) early in the morning
                    increasing to excellent (99400 knot-ft) in the
                    afternoon increasing to excellent (90300
                    knot-ft) late in the afternoon.
Mixing height.......4000 ft AGL.
Transport winds.....Southeast 16 to 25 mph increasing to 26 to 31
                    mph late in the morning.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

$$
Forecaster...Hewett
Requested by...Area Wildlife Supervisor
Type of request...PRESCRIBED
.TAG 2413172.0/MPX
.DELDT 05/05/24
.FormatterVersion 2.0.0
.EMAIL cory.netland@state.mn.us