769
FNUS73 KMPX 111046
FWSMPX

Spot Forecast for Angus Lake WPA Rx...USFWS
National Weather Service Twin Cities/Chanhassen MN
546 AM CDT Sat May 11 2024

Forecast is based on ignition time of 0800 CDT on May 11.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

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

.DISCUSSION...
For the Angus Lake WPA Rx expect to see mostly clear skies and
humidity near 60 percent at ignition time falling to the mid 20s
percent this afternoon as temperatures climb into the 70s. Surface
level winds will be primarily out of the west at 5-10mph today,
perhaps a bit more northwesterly at ignition time with limited
gusting today peaking at around 20mph during the afternoon.

.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent).
Temperature.........50 at ignition...Max 75.
RH..................63 percent at ignition...Min 24 percent.
Wind (20 ft)........Winds northwest at 6 mph at
                    ignition...otherwise Northwest winds 6 to 10
                    mph shifting to the west around 10 mph late in
                    the afternoon.
Smoke dispersal.....Poor /3200 knot-ft/ at ignition.
                    Max...excellent /102600 knot-ft/ increasing to
                    excellent (105800 knot-ft) late in the
                    afternoon.
Mixing height.......500 ft AGL at ignition...otherwise 7600 ft AGL.
Transport winds.....Northwest 8 to 14 mph shifting to the west 14
                    to 16 mph late in the afternoon.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth at ignition...max 5.

TIME (CDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM
Sky cover.......CLR CLR CLR MCR MCR MCR CLR CLR MCR MCR PC  MCR
Weather cov.....
Weather type....
Tstm cov........
Temp............50  54  61  64  67  69  72  73  74  75  74  74
RH..............63  57  44  37  32  30  26  24  24  24  25  27
20 FT wind dir..NW  NW  N   NW  NW  NW  W   W   W   W   W   SW
20 FT wind spd..6   6   8   9   9   10  10  10  10  10  9   8
20 FT wind gust.10  10  12  14  14  15  15  14  15  15  14  12
Mix hgt (kft)...0.5 1.2 2.2 3.4 5.1 6.1 6.7 6.9 7.3 7.6 6.5 1.4
Transp wind dir.N   NW  N   NW  NW  NW  W   W   W   W   W   W
Transp wind spd.8   9   10  12  13  13  14  14  16  16  15  10
Haines index....5   5   5   5   5   5   5   5   5   5   5   5

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent).
Temperature.........Min 56.
RH..................Max 62 percent.
Wind (20 ft)........Southwest winds 8 to 9 mph shifting to the
                    south 7 to 12 mph early in the evening, then
                    shifting to the southwest around 10 mph after 3
                    am.
Smoke dispersal.....Excellent (84700 knot-ft) early in the evening
                    decreasing to poor (4900 knot-ft) late in the
                    night.
Mixing height.......400 ft AGL.
Transport winds.....Southwest 10 to 15 mph increasing to 13 to 16
                    mph in the late evening and overnight, then
                    shifting to the west around 15 mph after 3 am.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

.SUNDAY...

Sky/weather.........Sunny (10-20 percent). Slight chance of
                    thunderstorms early in the afternoon. Slight
                    chance of rain showers in the afternoon.
Temperature.........Max 81.
RH..................Min 28 percent.
Wind (20 ft)........West winds 10 to 12 mph shifting to the
                    northwest around 12 mph late in the afternoon.
                    Gusty and erratic winds expected near
                    thunderstorms early in the afternoon.
Smoke dispersal.....Poor (7000 knot-ft) early in the morning
                    increasing to excellent (87200 knot-ft) in the
                    afternoon.
Mixing height.......6200 ft AGL.
Transport winds.....West 16 to 18 mph shifting to the northwest
                    around 16 mph in the afternoon.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

$$
Forecaster...Hasenstein
Requested by...Blatz
Type of request...PRESCRIBED
.TAG 2413726.0/MPX
.DELDT 05/11/24
.FormatterVersion 2.0.0
.EMAIL david_blatz@fws.gov