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000
FNUS73 KMPX 210812
FWSMPX

Spot Forecast for Dunnville Aspen Rx Burn...WI DNR
National Weather Service Twin Cities/Chanhassen MN
312 AM CDT Sun Apr 21 2024

Forecast is based on ignition time of 1100 CDT on April 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

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

.DISCUSSION...Clear, dry and breezy conditions will prevail
today. West to northwest winds will increase with sustained
speeds around 15mph with gusts around 20 mph. RH values will
drop to around 25 percent this afternoon. This combination of
winds and RH values may produce elevated fire weather concerns
this afternoon and early evening.

.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent).
Temperature.........50 at ignition...Max 60.
RH..................42 percent at ignition...Min 25 percent.
Wind (20 ft)........Winds west at 12 mph at ignition...otherwise
                    West winds 12 to 14 mph.
Smoke dispersal.....Excellent /98900 knot-ft/ at ignition.
                    Max...excellent /143100 knot-ft/.
Mixing height.......5500 ft AGL at ignition...otherwise 7600 ft
                    AGL.
Transport winds.....Northwest 20 to 22 mph.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth at ignition...max 5.

TIME (CDT)      11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P
Sky cover.......MCR MCR MCR MCR MCR CLR CLR CLR CLR CLR CLR CLR
Weather cov.....
Weather type....
Tstm cov........
Temp............50  53  55  57  59  60  60  60  58  54  50  46
RH..............42  35  30  28  26  25  25  26  28  34  39  47
20 FT wind dir..W   W   W   W   W   W   W   W   W   W   W   SW
20 FT wind spd..12  13  14  14  14  14  14  12  10  7   7   6
20 FT wind gust.18  20  20  21  22  21  20  17  15  10  10  9
Mix hgt (kft)...5.5 6.4 7.0 7.4 7.6 7.5 7.0 6.7 0.8 0.6 0.5 0.4
Transp wind dir.NW  NW  NW  NW  W   NW  W   W   NW  W   W   W
Transp wind spd.21  21  21  21  21  22  20  20  12  9   9   8
Haines index....5   5   5   5   5   5   5   5   6   6   6   6

.TONIGHT...

Sky/weather.........Mostly clear (0-10 percent). Areas of frost
                    early in the morning.
Temperature.........Min 34.
RH..................Max 69 percent.
Wind (20 ft)........West winds 7 to 12 mph shifting to the
                    southwest 6 to 7 mph in the late evening and
                    overnight.
Smoke dispersal.....Excellent (114400 knot-ft) decreasing to poor
                    (2400 knot-ft).
Mixing height.......300 ft AGL.
Transport winds.....Northwest 12 to 20 mph shifting to the west 8
                    to 10 mph early in the evening, then shifting
                    to the southwest around 10 mph after 3 am.
Haines Index........5 to 6 or moderate to high potential for large
                    plume dominated fire growth.

.MONDAY...

Sky/weather.........Mostly sunny (40-50 percent) then becoming
                    mostly cloudy (75-85 percent). Areas of frost
                    early in the morning. Slight chance of rain
                    showers early in the afternoon. Chance of rain
                    showers late in the afternoon.
Temperature.........Max 67.
RH..................Min 30 percent.
Wind (20 ft)........South winds 6 to 14 mph increasing to 16 to 20
                    mph late in the morning.
Smoke dispersal.....Poor (3600 knot-ft) early in the morning
                    increasing to excellent (97800 knot-ft) in the
                    afternoon increasing to excellent (76300
                    knot-ft) in the afternoon.
Mixing height.......4700 ft AGL.
Transport winds.....Southwest 12 to 20 mph increasing to 26 to 33
                    mph.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

$$
Forecaster...Calderone
Requested by...Jed Hopp
Type of request...PRESCRIBED
.TAG 2411560.0/MPX
.DELDT 04/21/24
.FormatterVersion 2.0.0
.EMAIL Jed.Hopp@WI.gov