Spot Forecast
Issued by NWS La Crosse, WI
Issued by NWS La Crosse, WI
504
FNUS73 KARX 111317
FWSARX
Spot Forecast for Shooting Star Prairie SNA...MN DNR
National Weather Service La Crosse WI
817 AM CDT Sat May 11 2024
Forecast is based on ignition time of 0900 CDT on May 11.
If conditions become unrepresentative...contact the National Weather
Service.
Please contact our office at (608) 784-8292 if you have questions
or concerns with this forecast.
.DISCUSSION...
Northwest winds increase today with gusts 15 to 25 mph, Temps
warm to around 70 and resulting afternoon mixing drops dewpoints
min humidities to around 25 percent. On Sunday, a cold front
will sag southeast across the region, sparking a few showers and
storms for the afternoon and evening. Surface winds decrease and
shift to the south ahead of this cold front later this evening.
.REST OF TODAY...
Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Temperature.........56 at ignition...Max 71.
RH..................57 percent at ignition...Min 26 percent.
Wind (20 ft)........Winds northwest at 7 mph at
ignition...otherwise Northwest winds 7 to 11
mph.
Mixing height.......1400 ft AGL at ignition...otherwise 2700 ft AGL
increasing to 7400 ft AGL.
Transport winds.....Northwest 16 to 24 mph.
Smoke dispersal.....Fair /20700 knot-ft/ at ignition.
Max...excellent /142600 knot-ft/.
Haines Index........5 or moderate potential for large plume
dominated fire growth at ignition...max 5.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........2 2 3 8 11 10 8 9 10
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0
Temp............56 59 63 65 67 69 70 71 71
RH..............57 50 44 37 32 28 26 27 27
20 FT wind dir..NW NW NW NW NW NW NW NW NW
20 FT wind spd..7 9 10 10 11 11 10 9 8
20 FT wind gust.14 15 18 19 19 19 18 15 14
Mix hgt (kft)...1.4 2.7 4.8 6.4 7.1 7.4 7.2 7.2 7.0
Transp wind dir.NW NW NW NW NW NW NW NW W
Transp wind spd.17 20 24 24 23 22 20 17 16
Haines index....5 5 5 5 5 5 5 5 5
SDspl kt-ft/100021 45 101 134 143 140 123 108 98
.TONIGHT...
Sky/weather.........Partly cloudy (25-35 percent).
CWR.................10 percent.
Temperature.........Min 51.
RH..................Max 71 percent.
Wind (20 ft)........Northwest winds 5 to 7 mph early in the evening
becoming light, then becoming south 5 to 7 mph
in the late evening and overnight shifting to
the southwest around 7 mph.
Mixing height.......6700 ft AGL decreasing to 400 ft AGL.
Transport winds.....West 6 to 14 mph shifting to the south 7 to 16
mph in the late evening and overnight.
Smoke dispersal.....Excellent (80300 knot-ft) early in the evening
decreasing to poor (2500 knot-ft) late in the
night.
Haines Index........5 or moderate potential for large plume
dominated fire growth.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
Sky (%).........10 16 21 38 48 31
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
CWR.............0 0 10 10 0 0
Temp............71 67 59 55 54 53
RH..............27 37 51 59 64 69
20 ft wind......NW 7 SW 4 S 5 S 6 S 7 SW 7
20 ft wind gust.12 7 9 14 14 14
Mix hgt (ft)....6700 500 400 400 500 400
Transport wind..W 14 W 6 S 9 S 14 SW 16 SW 16
Haines index....5 5 5 5 5 5
SDspl kt-ft/100080 3 3 5 7 6
.SUNDAY...
Sky/weather.........Mostly sunny (20-30 percent). Slight chance of
thunderstorms early in the afternoon. Chance of
rain showers in the afternoon. Chance of
thunderstorms late in the afternoon.
CWR.................0 percent increasing to 30 percent in the
afternoon.
Temperature.........Max 81.
RH..................Min 29 percent.
Wind (20 ft)........Southwest winds 7 to 15 mph shifting to the
west around 13 mph late in the afternoon. Gusty
and erratic winds expected near thunderstorms
early in the afternoon. Gusty and erratic winds
expected near thunderstorms late in the
afternoon.
Mixing height.......1500 ft AGL increasing to 3400 ft AGL late in
the morning, then increasing to 5500 ft AGL
early in the afternoon increasing to 9200 ft
AGL late in the afternoon decreasing to 6500 ft
AGL.
Transport winds.....West 15 to 24 mph.
Smoke dispersal.....Poor (5500 knot-ft) early in the morning
increasing to excellent (193100 knot-ft) in the
afternoon.
Haines Index........5 or moderate potential for large plume
dominated fire growth.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky (%).........30 25 12 14 19 31
Weather cov..... CHANCE CHANCE
Weather type....NONE NONE NONE NONE RNSHWR RNSHWR
Tstm cov........ S CHC CHANCE
CWR.............0 0 0 0 30 30
Temp............52 57 70 77 80 81
RH..............74 72 53 39 31 29
20 ft wind......SW 7 SW 8 SW 11 SW 13 W 15 W 13
20 ft wind gust.14 14 18 19 20 19
Mix hgt (ft)....400 600 1500 5500 8100 9200
Transport wind..SW 16 W 17 W 21 W 23 W 23 W 24
Haines index....5 5 5 5 5 5
SDspl kt-ft/10006 9 27 110 162 193
$$
Forecaster...CZ
Requested by...Brad Bolduan
Type of request...PRESCRIBED
.TAG 2413769.0/ARX
.DELDT 05/11/24
.FormatterVersion 2.0.0
.EMAIL Brad.Bolduan@state.mn.us