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000
FNUS73 KMPX 121033
FWSMPX

Spot Forecast for Burn Unit 40g...USFWS
National Weather Service Twin Cities/Chanhassen MN
533 AM CDT Fri Apr 12 2024

Forecast is based on ignition time of 0600 CDT on April 12.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

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

.DISCUSSION...Northwest winds with gusts of 25-30 MPH will be the
main concern through this afternoon. Clear skies are expected with
RH values falling into the low 30s by early afternoon. Winds will
decrease by this evening.

.TODAY...

Sky/weather.........Sunny (0-10 percent).
Temperature.........42 at ignition...Max 59.
RH..................73 percent at ignition...Min 33 percent.
Wind (20 ft)........Winds northwest at 12 mph at
                    ignition...otherwise Northwest winds 12 to 14
                    mph.
Smoke dispersal.....Poor /9000 knot-ft/ at ignition.
                    Max...excellent /82800 knot-ft/ increasing to
                    excellent (110600 knot-ft) in the afternoon.
Mixing height.......700 ft AGL at ignition...otherwise 6700 ft AGL.
Transport winds.....Northwest 15 to 22 mph increasing to 23 to 26
                    mph late in the morning.
Haines Index........4 or low potential for large plume dominated
                    fire growth at ignition...max 4.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MCR CLR MCR MCR MCR CLR MCR CLR CLR CLR CLR CLR
Weather cov.....
Weather type....
Tstm cov........
Temp............42  41  40  43  47  50  53  56  57  58  59  58
RH..............73  76  79  70  63  54  46  40  35  34  33  33
20 FT wind dir..NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..12  12  13  13  14  14  14  14  14  14  14  13
20 FT wind gust.17  16  20  20  21  22  22  22  22  22  21  20
Mix hgt (kft)...0.7 0.8 1.0 1.7 2.5 3.8 4.8 5.6 6.1 6.5 6.7 6.1
Transp wind dir.N   NW  NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.15  15  17  21  22  25  26  26  26  24  24  23
Haines index....4   4   4   4   4   4   4   4   4   4   4   4

.TONIGHT...

Sky/weather.........Mostly clear (0-10 percent).
Temperature.........Min 35.
RH..................Max 82 percent.
Wind (20 ft)........Northwest winds 6 to 12 mph in the evening
                    becoming light, then becoming southeast around
                    5 mph early in the morning.
Smoke dispersal.....Excellent (109400 knot-ft) early in the evening
                    decreasing to fair (28600 knot-ft) late in the
                    night decreasing to poor (800 knot-ft) early in
                    the evening.
Mixing height.......300 ft AGL.
Transport winds.....Northwest 12 to 21 mph decreasing to 5 to 9 mph
                    in the late evening and overnight, then
                    shifting to the south 3 to 6 mph after 3 am.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

.SATURDAY...

Sky/weather.........Sunny (5-15 percent).
Temperature.........Max 75.
RH..................Min 28 percent.
Wind (20 ft)........South winds 5 to 14 mph shifting to the
                    southwest 13 to 14 mph late in the afternoon.
Smoke dispersal.....Poor (1700 knot-ft) early in the morning
                    increasing to excellent (93100 knot-ft) in the
                    afternoon.
Mixing height.......4200 ft AGL.
Transport winds.....South 7 to 13 mph increasing to 17 to 26 mph in
                    the late morning and afternoon.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

$$
Forecaster...Dye
Requested by...Kris Larson
Type of request...PRESCRIBED
.TAG 2410445.0/MPX
.DELDT 04/12/24
.FormatterVersion 2.0.0
.EMAIL kris_larson@fws.gov