245
FNUS73 KARX 301357
FWSARX
SPOT FORECAST FOR 13 DRIVE S...WISCONSIN DNR
NATIONAL WEATHER SERVICE LA CROSSE WI
857 AM CDT THU APR 30 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON APRIL 30.
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
DRY CONDITIONS EXPECTED THIS MORNING WITH SOME SPRINKLES OR LIGHT
RAIN SHOWERS POSSIBLE (10 TO 20%) THIS AFTERNOON AND EVENING.
LIGHT AND VARIABLE WINDS DURING THE MID MORNING THEN WINDS SWITCH
TO THE NORTHWEST BETWEEN 15 AND 17Z. WITH THE LIGHT WINDS THIS
MORNING, THE SMOKE DISPERSAL CONDITIONS ARE IN THE POOR CATEGORY.
SUSTAINED WINDS OF 10 TO 15 MPH WITH GUSTS UP TO 20 MPH POSSIBLE.
MINIMUM RELATIVE HUMIDITY VALUES FOR THIS AFTERNOON IS IN THE 35
TO 40% RANGE. WITH QUITE A BIT OF DRY AIR IN THE LOW LEVELS, EVEN
IF A SHOWER DOES FORM, THE RAIN MAY NOT REACH THE SURFACE. THIS
ALSO MEANS THERE IS POTENTIAL FOR DEEPER MIXING TO OCCUR WHICH
COULD LOWER RELATIVE HUMIDITIES CLOSER TO 30%. MORE SPOTTY SHOWERS
ARE POSSIBLE FOR FRIDAY AFTERNOON.
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). SCATTERED
SPRINKLES EARLY IN THE AFTERNOON. ISOLATED RAIN
SHOWERS LATE IN THE AFTERNOON.
CWR.................0 PERCENT INCREASING TO 20 PERCENT LATE IN THE
AFTERNOON.
CHANCE OF THUNDER...5 PERCENT.
TEMPERATURE.........40 AT IGNITION...MAX 54.
RH..................73 PERCENT AT IGNITION...MIN 38 PERCENT.
WIND (20 FT)........WINDS NORTHEAST AT 2 MPH AT
IGNITION...OTHERWISE LIGHT WINDS BECOMING
NORTHWEST 5 TO 8 MPH IN THE AFTERNOON.
MIXING HEIGHT.......2100 FT AGL AT IGNITION...OTHERWISE 3900 FT AGL
INCREASING TO 6400 FT AGL LATE IN THE MORNING,
THEN DECREASING TO 4900 FT AGL LATE IN THE
AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 6 MPH SHIFTING TO THE NORTHWEST 7
TO 14 MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....POOR /10400 KNOT-FT/ AT IGNITION. MAX...GOOD
/59200 KNOT-FT/.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........48 40 56 61 65 69 68 68 70
WEATHER COV..... SCT ISO ISO ISO ISO
WEATHER TYPE.... RW RW RW RW RW
TSTM COV........
CWR.............0 0 0 10 10 20 20 20 20
CHC OF THDR (%).0 0 0 0 0 0 0 10 10
TEMP............40 46 48 49 51 51 52 52 53
RH..............73 58 51 47 42 38 38 38 38
20 FT WIND DIR..NE N NW NW NW NW NW NW NW
20 FT WIND SPD..2 3 4 5 6 7 7 8 8
20 FT WIND GUST.6 8 11 12 13 14 14 14 15
MIX HGT (KFT)...2.1 3.9 5.5 6.4 6.1 6.2 5.2 4.4 4.9
TRANSP WIND DIR.E W W W W NW NW NW N
TRANSP WIND SPD.6 7 8 9 9 10 9 10 14
SDSPL KT-FT/100010 23 38 51 49 56 41 40 59
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
MOSTLY CLOUDY (45-55 PERCENT). SCATTERED
SPRINKLES EARLY IN THE EVENING. AREAS OF FROST
OVERNIGHT. WIDESPREAD FROST OVERNIGHT.
CWR.................10 PERCENT.
CHANCE OF THUNDER...5 PERCENT.
TEMPERATURE.........MIN 29.
RH..................MAX 96 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 7 MPH EARLY IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......4700 FT AGL DECREASING TO 400 FT AGL.
TRANSPORT WINDS.....NORTH 6 TO 14 MPH.
SMOKE DISPERSAL.....GOOD (56100 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (1800 KNOT-FT) LATE IN THE
NIGHT.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........67 65 54 41 37 38
WEATHER COV.....SCTTRD AREAS WIDSPD WIDSPD
WEATHER TYPE....RNSHWR NONE NONE FROST FROST FROST
TSTM COV........
CWR.............10 10 0 0 0 0
CHC OF THDR (%).10 0 0 0 0 0
TEMP............51 48 40 37 34 31
RH..............41 47 64 72 82 92
20 FT WIND......NW 7 NW 5 N 4 N 3 N 2 N 2
20 FT WIND GUST.14 14 11 9 7 6
MIX HGT (FT)....4700 700 800 600 500 400
TRANSPORT WIND..N 14 N 9 N 12 N 10 N 7 N 6
SDSPL KT-FT/100056 6 8 6 3 2
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). WIDESPREAD FROST
EARLY IN THE MORNING, THEN AREAS OF FROST EARLY
IN THE MORNING. SLIGHT CHANCE OF RAIN SHOWERS
IN THE AFTERNOON.
CWR.................0 PERCENT INCREASING TO 20 PERCENT IN THE
AFTERNOON.
CHANCE OF THUNDER...4 PERCENT.
TEMPERATURE.........MAX 51.
RH..................MIN 36 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST 5 TO 7 MPH LATE
IN THE MORNING.
MIXING HEIGHT.......1800 FT AGL INCREASING TO 7300 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 14 MPH SHIFTING TO THE NORTHWEST
AROUND 12 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (1700 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (80500 KNOT-FT) IN THE
AFTERNOON.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........41 28 26 52 60 58
WEATHER COV.....WIDSPD AREAS ISOLTD S CHC
WEATHER TYPE....FROST FROST NONE NONE RNSHWR RNSHWR
TSTM COV........
CWR.............0 0 0 0 20 20
CHC OF THDR (%).0 0 0 0 0 0
TEMP............29 34 42 46 49 49
RH..............100 85 57 45 39 37
20 FT WIND......N 2 N 2 N 4 N 5 NW 7 NW 7
20 FT WIND GUST.6 6 9 12 14 14
MIX HGT (FT)....400 1800 5100 6300 7300 6900
TRANSPORT WIND..N 5 N 7 N 12 NW 13 NW 13 NW 12
SDSPL KT-FT/10002 11 51 70 81 69
FORECASTER...JRC
REQUESTED BY...ERIN GROSSMAN
TYPE OF REQUEST...PRESCRIBED
.TAG 2612246.0/ARX
.DELDT 04/30/26
.FORMATTERVERSION 2.0.0
.EMAIL ERIN.GROSSMAN@WISCONSIN.GOV
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