717
FNUS73 KLOT 251450
FWSLOT
SPOT FORECAST FOR NELSON RECK PARK WOODS RX FIRE...OGDEN DUNES FD
NATIONAL WEATHER SERVICE CHICAGO IL
950 AM CDT WED MAR 25 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MARCH 25.
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
SOUTH TO SOUTHWESTERLY WINDS WILL GRADUALLY INCREASE THIS
MORNING, AND ESPECIALLY THIS AFTERNOON. BETWEEN ABOUT 2 AND 5 PM,
THERE IS A POTENTIAL FOR A FEW GUSTS NEAR 30 MPH. RH VALUES ARE
EXPECTED TO FALL INTO THE LOW 20 PERCENT RANGE. SOME OF THE DRIEST
GUIDANCE SUGGESTS THAT MID TO UPPER TEENS RHS CAN'T BE RULED OUT
DURING PEAK HEATING THIS AFTERNOON. WINDS SHOULD DECREASE STEADILY
THIS EVENING AND RH VALUES WILL GRADUALLY RECOVER. THERE IS A
CHANCE FOR SHOWERS AND PERHAPS A THUNDERSTORM OR TWO IN THE AREA
LATE THIS EVENING AND OVERNIGHT.
ON THURSDAY, A VERY SHARP AND FAST-MOVING COLD FRONT WILL SURGE
DOWN THE LAKE RESULTING IN AN ABRUPT AND STRONG NORTH WIND SHIFT
AND TEMPERATURES FALLING INTO THE 40S. THERE IS SOME UNCERTAINTY
WITH THIS TIMING, BUT LATEST GUIDANCE SUGGESTS THIS MAY OCCUR
TOWARDS MIDDAY OR EARLY AFTERNOON. THUNDERSTORMS, SOME STRONG TO
SEVERE, WILL BE POSSIBLE THURSDAY AFTERNOON.
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........51 AT IGNITION...MAX 69.
RH..................46 PERCENT AT IGNITION...MIN 22 PERCENT.
WIND (20 FT)........WINDS SOUTH AT 12 MPH AT IGNITION...OTHERWISE
SOUTH WINDS 7 TO 10 MPH INCREASING TO 12 TO 14
MPH WITH GUSTS TO AROUND 28 MPH LATE IN THE
MORNING AND AFTERNOON.
CHANCE OF PCPN......0 PERCENT.
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH SHIFTING TO THE SOUTHWEST 21
TO 23 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......900 FT AGL AT IGNITION...OTHERWISE 3300 FT AGL.
SMOKE DISPERSAL.....FAIR /13700 KNOT-FT/ AT IGNITION.
MAX...EXCELLENT /65800 KNOT-FT/.
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........56 71 58 48 43 34 35 39
WEATHER COV.....
WEATHER TYPE....
TEMP............51 56 61 63 65 66 68 69
RH..............46 40 35 32 27 24 22 23
20 FT WIND DIR..180 180 190 190 200 200 210 210
20 FT WIND SPD..12 13 13 14 15 15 15 14
20 FT WIND GUST.18 21 22 23 25 28 28 26
MIX HGT (KFT)...0.9 1.3 1.7 2.2 2.8 3.3 3.3 2.6
TRANSP WIND DIR.180 180 190 190 200 200 210 210
TRANSP WIND SPD.17 18 18 20 21 22 23 22
CHC OF PCPN (%).0 0 0 0 0 0 0 0
VRATE KT-FT/1K..14 20 26 38 52 63 66 49
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE
IN THE EVENING. CHANCE OF SHOWERS AND
THUNDERSTORMS OVERNIGHT.
TEMPERATURE.........MIN 53.
RH..................MAX 84 PERCENT.
WIND (20 FT)........SOUTH WINDS 9 TO 12 MPH WITH GUSTS TO AROUND 24
MPH DECREASING TO 7 TO 8 MPH OVERNIGHT. GUSTY
AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
IN THE LATE EVENING AND OVERNIGHT.
CHANCE OF PCPN......30 PERCENT.
TRANSPORT WINDS.....SOUTH 16 TO 21 MPH DECREASING TO 14 TO 17 MPH
OVERNIGHT.
MIXING HEIGHT.......500 FT AGL.
SMOKE DISPERSAL.....FAIR (21400 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (7000 KNOT-FT) LATE IN THE
NIGHT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........49 40 58 61 61 77 80 72 69 62 57 51
WEATHER COV..... SCH SCH SCH CHC CHC CHC
WEATHER TYPE.... RW RW RW RW RW RW
TEMP............66 62 58 56 55 54 54 53 54 54 55 55
RH..............28 37 50 57 64 70 74 78 80 80 81 80
20 FT WIND DIR..200 200 200 200 200 200 200 200 200 200 190 190
20 FT WIND SPD..13 10 10 10 10 9 9 8 8 8 8 8
20 FT WIND GUST.24 16 14 13 12 10
MIX HGT (KFT)...1.3 0.8 0.7 0.6 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5
TRANSP WIND DIR.210 200 200 200 200 200 200 200 200 200 190 190
TRANSP WIND SPD.20 17 18 20 21 20 16 14 15 17 17 16
CHC OF PCPN (%).0 10 10 10 20 20 20 30 30 30 10 10
VRATE KT-FT/1K..21 12 11 11 11 10 8 7 8 8 8 7
FORECASTER...CARLAW
REQUESTED BY...ERIC KURTZ
TYPE OF REQUEST...PRESCRIBED
.TAG 2607837.0/LOT
.DELDT 03/25/26
.FORMATTERVERSION 2.0.0
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