914
FNUS73 KMPX 051323
FWSMPX

Spot Forecast for Old Gravel Pit WMA Rx Burn...MN DNR
National Weather Service Twin Cities/Chanhassen MN
823 AM CDT Sun May 5 2024

Forecast is based on ignition time of 0900 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...
For the Old Gravel Pit WMA Rx Burn, Light south winds at ignition
will tick up  to 6-12mph by noon. Transport winds will be S at 8-16mph.
RH values will drop below 40% this afternoon as temperatures warm quickly
with mostly clear skies forecast throughout the day.

.REST OF TODAY...

Sky/weather.........Sunny (0-5 percent).
Temperature.........48 at ignition...Max 70.
RH..................79 percent at ignition...Min 31 percent.
Wind (20 ft)........Winds south at 5 mph at ignition...otherwise
                    South winds 5 to 12 mph.
Smoke dispersal.....Poor /6000 knot-ft/ at ignition.
                    Max...excellent /81900 knot-ft/.
Mixing height.......800 ft AGL at ignition...otherwise 5900 ft AGL.
Transport winds.....South 8 to 16 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth at ignition...max 4.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM
Sky cover.......CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR
Weather cov.....
Weather type....
Tstm cov........
Temp............48  56  60  62  64  66  67  69  70  69  68  66
RH..............79  59  49  44  40  36  34  31  31  32  32  36
20 FT wind dir..S   S   S   S   S   S   S   S   SE  SE  SE  SE
20 FT wind spd..5   6   7   9   9   10  10  12  12  13  12  10
20 FT wind gust.7   9   10  14  14  16  16  17  17  20  17  16
Mix hgt (kft)...0.8 2.0 4.5 5.3 5.5 5.8 5.8 5.9 5.9 5.7 4.2 0.6
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   SE
Transp wind spd.8   9   10  12  13  13  13  14  16  17  18  15
Haines index....4   4   4   4   3   3   3   3   3   3   3   3

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
Temperature.........Min 49.
RH..................Max 82 percent.
Wind (20 ft)........Southeast winds 10 to 14 mph.
Smoke dispersal.....Excellent (85800 knot-ft) early in the evening
                    decreasing to poor (7200 knot-ft) late in the
                    night.
Mixing height.......500 ft AGL.
Transport winds.....Southeast 15 to 20 mph.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

.MONDAY...

Sky/weather.........Partly sunny (60-70 percent) then becoming
                    cloudy (85-95 percent). Slight chance of rain
                    showers late in the afternoon. Chance of rain
                    showers and slight chance of thunderstorms late
                    in the afternoon.
Temperature.........Max 73.
RH..................Min 49 percent.
Wind (20 ft)........Windy. Southeast winds 16 to 23 mph increasing
                    to 26 to 30 mph with gusts to around 46 mph
                    late in the morning. Gusty and erratic winds
                    expected near thunderstorms late in the
                    afternoon.
Smoke dispersal.....Poor (11300 knot-ft) early in the morning
                    increasing to excellent (98400 knot-ft) in the
                    afternoon increasing to excellent (114800
                    knot-ft) in the afternoon.
Mixing height.......4500 ft AGL.
Transport winds.....Southeast 21 to 29 mph increasing to 32 to 41
                    mph in the late morning and afternoon.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

$$
Forecaster...Hewett
Requested by...Nicholas Snavely
Type of request...PRESCRIBED
.TAG 2413190.0/MPX
.DELDT 05/05/24
.FormatterVersion 2.0.0
.EMAIL Nicholas.Snavely@state.mn.us