← Previous May 26, 2023 8:14 AM
FNUS73 KARX 261314
FWSARX
Spot Forecast for Dam 1 & 2...US FISH AND WILDLIFE SERVICE
National Weather Service La Crosse WI
814 AM CDT Fri May 26 2023
Forecast is based on ignition time of 0900 CDT on May 26.
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...A large area of surface high pressure centered over lower
Michigan will remain nearly stationary today and remain the dominant
weather feature for the local area. Skies will be sunny with no chance
for any rain. Temperatures this morning should be in the lower 50s and
warm into the middle 70s during the afternoon. Look for the relative
humidity to be around 50 percent and drop to near 20 percent at the
time of peak heating this afternoon. Winds will be out of the east to
southeast at speeds under 10 mph throughout the day. Smoke dispersal
looks to be poor at the start of the burn and improve to good during
the afternoon.
No rain is expected into tonight with skies remaining mostly clear.
Temperatures will cool into the lower 40s allowing the relative
humidity to recover to around 70 percent overnight.
.REST OF TODAY...
Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Temperature.........52 at ignition...Max 76.
RH..................52 percent at ignition...Min 21 percent.
Wind (20 ft)........Winds east at 3 mph at ignition...otherwise
Light winds becoming southeast 5 to 7 mph late
in the morning.
Mixing height.......1300 ft AGL at ignition...otherwise 5100 ft
AGL.
Transport winds.....Southeast 7 to 8 mph.
Smoke dispersal.....Poor /7600 knot-ft/ at ignition. Max...good
/35800 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 (%).........8 9 10 13 18 7 16 17 14
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0
Temp............52 59 64 68 71 72 74 75 76
RH..............52 40 34 26 22 22 21 21 22
20 FT wind dir..E SE SE SE SE SE SE SE SE
20 FT wind spd..3 4 5 5 6 6 7 7 6
20 FT wind gust.7 8 8 9 9 9 11 11 9
Mix hgt (kft)...1.3 2.3 3.1 3.9 4.2 4.7 5.0 5.1 5.0
Transp wind dir.SE SE SE SE SE SE SE SE SE
Transp wind spd.7 8 8 8 8 8 8 8 8
Haines index....5 5 5 5 5 5 5 5 5
SDspl kt-ft/10008 16 22 27 30 33 35 36 35
.TONIGHT...
Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
Temperature.........Min 42.
RH..................Max 70 percent.
Wind (20 ft)........Southeast winds 5 to 6 mph in the evening and
overnight becoming light.
Mixing height.......300 ft AGL.
Transport winds.....Southeast 7 to 10 mph.
Smoke dispersal.....Good (33000 knot-ft) early in the evening
decreasing to poor (2100 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 (%).........18 14 21 16 1 4
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
CWR.............0 0 0 0 0 0
Temp............75 67 57 52 46 43
RH..............23 34 55 59 68 70
20 ft wind......SE 6 SE 5 SE 5 SE 6 SE 5 SE 3
20 ft wind gust.9 8 8 9 7 5
Mix hgt (ft)....4700 500 400 400 300 300
Transport wind..SE 8 SE 7 SE 9 SE 10 SE 8 SE 8
Haines index....5 5 5 5 5 5
SDspl kt-ft/100033 3 3 3 2 2
.SATURDAY...
Sky/weather.........Sunny (0-10 percent).
CWR.................0 percent.
Temperature.........Max 79.
RH..................Min 26 percent.
Wind (20 ft)........Light winds becoming southeast 5 to 8 mph in
the late morning and afternoon.
Mixing height.......5000 ft AGL.
Transport winds.....Southeast 7 to 9 mph.
Smoke dispersal.....Poor (1800 knot-ft) early in the morning
increasing to good (40100 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 (%).........2 6 9 11 8 5
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
CWR.............0 0 0 0 0 0
Temp............42 54 66 73 77 78
RH..............70 52 38 31 26 27
20 ft wind......SE 3 SE 4 S 5 S 7 SE 7 SE 8
20 ft wind gust.5 6 9 9 12 13
Mix hgt (ft)....300 800 1900 3900 4800 5000
Transport wind..SE 7 SE 7 S 8 S 9 SE 9 SE 9
Haines index....5 5 5 5 5 5
SDspl kt-ft/10002 5 14 32 38 40
$$
Forecaster...04
Requested by...Ben Halverson
Type of request...PRESCRIBED
.TAG 2314030.0/ARX
.DELDT 05/26/23
.FormatterVersion 2.0.0
.EMAIL [email protected]