870
FNUS73 KMPX 101141
FWSMPX

Spot Forecast for Claude WPA Rx...USFWS
National Weather Service Twin Cities/Chanhassen MN
641 AM CDT Fri May 10 2024

Forecast is based on ignition time of 0800 CDT on May 10.
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 Claude WPA Rx burn, temperatures will warm
to near 70 this afternoon, allowing relative humidity values to
drop to 25-30%. Light westerly winds will become northwesterly and
increase throughout this morning, peaking this afternoon at 15-20
knots (gusting to 25-30 knots). Clear skies will become partly
cloudy by this afternoon but chances for rain showers should
remain east of the area.

.REST OF TODAY...

Sky/weather.........Sunny (20-30 percent) then becoming partly
                    sunny (50-60 percent).
Temperature.........52 at ignition...Max 70.
RH..................69 percent at ignition...Min 28 percent.
Wind (20 ft)........Winds west at 8 mph at ignition...otherwise
                    West winds 8 to 17 mph shifting to the
                    northwest 20 to 23 mph in the afternoon.
Smoke dispersal.....Poor /4900 knot-ft/ at ignition.
                    Max...excellent /70900 knot-ft/ increasing to
                    excellent (185000 knot-ft) in the afternoon.
Mixing height.......400 ft AGL at ignition...otherwise 9800 ft AGL.
Transport winds.....West 13 to 20 mph increasing to northwest 25 to
                    33 mph late in the morning.
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.......PC  MCR CLR MCR MCR MCR PC  PC  MC  MC  PC  PC
Weather cov.....
Weather type....
Tstm cov........
Temp............52  56  62  64  66  68  69  69  69  68  67  66
RH..............69  64  56  50  43  34  31  28  28  29  30  33
20 FT wind dir..W   W   W   NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..8   10  14  17  20  22  22  23  21  20  20  17
20 FT wind gust.14  20  22  25  28  30  31  31  30  29  29  25
Mix hgt (kft)...0.4 0.7 1.6 3.2 6.9 8.6 9.8 9.8 9.7 8.4 8.3 5.3
Transp wind dir.W   W   NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
Transp wind spd.13  15  20  25  31  33  33  32  31  32  30  25
Haines index....5   5   5   5   5   5   5   5   5   5   5   5

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
Temperature.........Min 42.
RH..................Max 73 percent.
Wind (20 ft)........Northwest winds 13 to 20 mph decreasing to 6 to
                    9 mph in the late evening and overnight.
Smoke dispersal.....Excellent (116900 knot-ft) decreasing to poor
                    (2800 knot-ft) early in the evening.
Mixing height.......300 ft AGL.
Transport winds.....Northwest 25 to 30 mph decreasing to 10 to 17
                    mph early in the evening.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

.SATURDAY...

Sky/weather.........Sunny (15-25 percent).
Temperature.........Max 76.
RH..................Min 25 percent.
Wind (20 ft)........West winds 6 to 10 mph increasing to around 9
                    mph late in the afternoon.
Smoke dispersal.....Poor (2500 knot-ft) early in the morning
                    increasing to excellent (88900 knot-ft) in the
                    afternoon.
Mixing height.......6700 ft AGL.
Transport winds.....Northwest 9 to 16 mph shifting to the west
                    around 12 mph late in the afternoon.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

$$
Forecaster...Grunzke
Requested by...Blatz
Type of request...PRESCRIBED
.TAG 2413661.0/MPX
.DELDT 05/10/24
.FormatterVersion 2.0.0
.EMAIL david_blatz@fws.gov