706
FNUS73 KLOT 221256
FWSLOT
SPOT FORECAST FOR SHABBONA RX...IL DNR
NATIONAL WEATHER SERVICE CHICAGO IL
756 AM CDT WED APR 22 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON APRIL 22.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE AT (815) 834-0666 IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
A WEAK, NEARLY STATIONARY COLD FRONT WAS LOCATED JUST SOUTH OF
THE WISCONSIN BORDER EARLY THIS MORNING, EXTENDING TO THE LAKE
MICHIGAN SHORE NORTH OF CHICAGO. THIS FRONT IS EXPECTED TO PUSH
SLOWLY SOUTH AND SOUTHWEST TODAY, AIDED BY A LAKE BREEZE, AND IS
EXPECTED TO REACH DEKALB COUNTY MID TO LATE AFTERNOON. PRIOR TO
THIS, WINDS WILL GENERALLY BE LIGHT WESTERLY, TURNING LIGHT NORTH
TO NORTHEAST BEHIND THE FRONT THIS AFTERNOON. TEMPERATURES SHOULD
TOP OUT IN THE MID-70S, WITH RELATIVE HUMIDITY LEVELS DIPPING INTO
THE 40-45 PERCENT RANGE DURING THE AFTERNOON. NO PRECIPITATION IS
EXPECTED.
REST OF TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN
BECOMING PARTLY CLOUDY.
TEMPERATURE.........62 AT IGNITION...MAX 77.
RH..................85 PERCENT AT IGNITION...MIN 39 PERCENT.
WIND (20 FT)........WINDS WEST AT 10 MPH AT IGNITION...OTHERWISE
WEST WINDS 6 TO 9 MPH SHIFTING TO THE NORTHWEST
5 TO 6 MPH IN THE AFTERNOON.
CHANCE OF PCPN......0 PERCENT.
TRANSPORT WINDS.....WEST 13 TO 18 MPH BECOMING NORTHWEST 6 TO 9 MPH
LATE IN THE MORNING, THEN SHIFTING TO THE NORTH
6 TO 7 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......1200 FT AGL AT IGNITION...OTHERWISE 4000 FT
AGL.
SMOKE DISPERSAL.....FAIR /19400 KNOT-FT/ AT IGNITION. MAX...FAIR
/24100 KNOT-FT/.
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........43 52 59 55 51 47 41 34 27 28
WEATHER COV.....
WEATHER TYPE....
TEMP............62 64 66 68 71 73 75 76 77 77
RH..............85 85 81 73 66 59 52 45 41 39
20 FT WIND DIR..260 270 270 280 290 310 310 320 340 000
20 FT WIND SPD..10 10 9 8 7 6 6 6 6 6
20 FT WIND GUST.15 15 14 13 9 9 9 9 9 10
MIX HGT (KFT)...1.2 1.5 1.7 2.1 2.4 2.8 3.6 4.0 4.0 3.8
TRANSP WIND DIR.260 270 270 280 290 310 320 330 350 000
TRANSP WIND SPD.18 15 13 9 8 8 7 6 7 6
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0
VRATE KT-FT/1K..19 20 19 17 17 18 21 22 24 20
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MIN 57.
RH..................MAX 92 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 6 TO 7 MPH SHIFTING TO THE
SOUTHEAST AROUND 7 MPH IN THE LATE EVENING AND
OVERNIGHT.
CHANCE OF PCPN......0 PERCENT.
TRANSPORT WINDS.....NORTHEAST 6 TO 8 MPH SHIFTING TO THE SOUTHEAST
8 TO 9 MPH IN THE LATE EVENING AND OVERNIGHT,
THEN SHIFTING TO THE SOUTH AROUND 8 MPH EARLY
IN THE MORNING.
MIXING HEIGHT.......300 FT AGL.
SMOKE DISPERSAL.....FAIR (20000 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (2100 KNOT-FT) LATE IN THE
NIGHT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........29 29 28 28 27 27 27 27 31 34 37 35
WEATHER COV.....
WEATHER TYPE....
TEMP............75 72 69 66 63 62 61 59 59 58 57 57
RH..............41 45 53 64 75 81 83 87 87 89 90 91
20 FT WIND DIR..030 070 080 120 140 140 150 150 170 170 170 170
20 FT WIND SPD..7 7 7 7 7 7 7 7 7 7 7 7
20 FT WIND GUST.9 9 12 12 13 12 12 12 13 13 13 13
MIX HGT (KFT)...3.6 0.5 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3
TRANSP WIND DIR.030 070 080 120 140 140 150 150 170 170 170 180
TRANSP WIND SPD.7 6 8 9 9 8 8 8 8 8 8 8
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
VRATE KT-FT/1K..20 3 3 3 3 3 3 2 2 2 2 2
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MAX 79.
RH..................MIN 43 PERCENT.
WIND (20 FT)........SOUTH WINDS 7 TO 9 MPH INCREASING TO 16 TO 17
MPH.
CHANCE OF PCPN......0 PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 14 MPH INCREASING TO 23 TO 25 MPH.
MIXING HEIGHT.......5700 FT AGL.
SMOKE DISPERSAL.....POOR (2800 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (98200 KNOT-FT) IN THE
AFTERNOON INCREASING TO EXCELLENT (83100
KNOT-FT) IN THE AFTERNOON.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........32 30 29 29 28 32 36 40 39 38 37 37
WEATHER COV.....
WEATHER TYPE....
TEMP............57 57 61 65 69 73 75 78 78 79 79 78
RH..............92 92 84 76 68 59 53 48 46 44 43 44
20 FT WIND DIR..180 180 180 190 190 190 180 180 180 180 180 180
20 FT WIND SPD..8 9 10 13 14 16 17 18 20 20 20 18
20 FT WIND GUST.14 15 17 20 21 23 25 26 28 28 28 26
MIX HGT (KFT)...0.3 0.3 0.7 1.2 2.4 3.6 4.9 5.7 5.2 5.4 5.5 4.0
TRANSP WIND DIR.180 180 180 190 190 190 180 180 180 180 180 180
TRANSP WIND SPD.10 10 14 17 20 22 23 23 24 25 25 24
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
VRATE KT-FT/1K..3 3 9 19 40 68 98 115 108 116 122 83
FORECASTER...RATZER
REQUESTED BY...GRIFFITH
TYPE OF REQUEST...PRESCRIBED
.TAG 2611296.0/LOT
.DELDT 04/22/26
.FORMATTERVERSION 2.0.0
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