455
FNUS73 KLOT 281349
FWSLOT
SPOT FORECAST FOR MIDEWIN RX...USFS
NATIONAL WEATHER SERVICE CHICAGO IL
849 AM CDT FRI MAR 28 2025
FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON MARCH 28.
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
ISOLATED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO PERSIST IN THE
AREA THROUGH EARLY AFTERNOON, THOUGH MUCH OF THE PERIOD WILL
REMAIN DRY AMID MOSTLY SUNNY SKIES. AN INVERSION AROUND 5KFT WILL
LIMIT MIXING HEIGHTS TO SOME DEGREE THIS AFTERNOON, THOUGH MIXING
INTO STRONG WINDS AROUND THE INVERSION LEVEL WILL RESULT IN
FREQUENT SOUTHWEST GUSTS TO AROUND 40 MPH. THOUGH LOW-LEVEL
MOISTURE WILL BEGIN ADVECTING INTO THE AREA THROUGH THE DAY, RH
VALUES ARE EXPECTED TO LOWER TO AS LOW AS 40 PERCENT THIS
AFTERNOON, WITH A CHANCE FOR VALUES AS LOW AS 35 PERCENT IF MIXING
IS MORE AGGRESSIVE THAN EXPECTED.
REST OF TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
ISOLATED SHOWERS AND THUNDERSTORMS THROUGH EARLY
AFTERNOON.
TEMPERATURE.........57 AT IGNITION...MAX 78.
RH..................75 PERCENT AT IGNITION...MIN 42 PERCENT.
WIND (20 FT)........WINDS SOUTH AT 14 MPH AT IGNITION...OTHERWISE
SOUTHWEST WINDS 13 TO 16 MPH INCREASING TO AROUND
25 MPH WITH GUSTS TO AROUND 40 MPH.
CHANCE OF PCPN......30 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 20 TO 25 MPH INCREASING TO 36 TO 40
MPH.
MIXING HEIGHT.......1100 FT AGL AT IGNITION...OTHERWISE 4500 FT
AGL.
SMOKE DISPERSAL.....FAIR /18900 KNOT-FT/ AT IGNITION.
MAX...EXCELLENT /117800 KNOT-FT/ INCREASING TO
EXCELLENT (133600 KNOT-FT) LATE IN THE
AFTERNOON.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........79 72 65 59 52 47 42 37 31
WEATHER COV.....CHC CHC CHC SCH SCH
WEATHER TYPE....RW RW RW RW RW
TEMP............57 64 67 69 72 74 77 78 77
RH..............75 63 61 61 57 51 45 42 42
20 FT WIND DIR..200 210 210 220 220 220 220 220 220
20 FT WIND SPD..14 15 17 21 23 25 26 26 25
20 FT WIND GUST.23 26 30 33 37 39 40 41 40
MIX HGT (KFT)...1.1 1.5 1.9 2.5 3.1 3.8 4.4 4.5 4.3
TRANSP WIND DIR.210 230 230 230 230 230 230 230 230
TRANSP WIND SPD.20 24 25 28 32 36 38 40 36
CHC OF PCPN (%).30 30 30 20 20 10 10 0 0
VRATE KT-FT/1K..19 31 43 59 86 118 145 159 134
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
TEMPERATURE.........MIN 58.
RH..................MAX 87 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 17 TO 20 MPH WITH GUSTS TO
AROUND 39 MPH DECREASING TO 15 TO 16 MPH WITH
GUSTS TO AROUND 29 MPH.
CHANCE OF PCPN......0 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 22 TO 27 MPH.
MIXING HEIGHT.......700 FT AGL.
SMOKE DISPERSAL.....GOOD (57000 KNOT-FT) EARLY IN THE EVENING
DECREASING TO FAIR (15400 KNOT-FT) LATE IN THE
NIGHT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........25 18 14 10 6 6 6 6 12 17 23 31
WEATHER COV.....
WEATHER TYPE....
TEMP............75 72 70 67 65 64 63 62 61 60 59 58
RH..............45 49 53 61 65 67 70 72 75 78 80 83
20 FT WIND DIR..220 220 220 210 210 210 220 220 220 220 220 220
20 FT WIND SPD..22 20 20 20 21 20 20 18 18 17 17 16
20 FT WIND GUST.39 37 36 35 35 33 31 30 29 29 28 25
MIX HGT (KFT)...2.4 0.9 0.8 0.7 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9
TRANSP WIND DIR.230 230 210 220 220 220 220 220 230 230 220 220
TRANSP WIND SPD.28 23 23 24 25 25 24 24 24 23 22 21
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
VRATE KT-FT/1K..57 18 15 15 18 18 17 18 19 18 17 16
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE
MORNING. CHANCE OF RAIN SHOWERS IN THE
AFTERNOON.
TEMPERATURE.........MAX 69.
RH..................MIN 68 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 13 TO 16 MPH WITH GUSTS TO
AROUND 29 MPH.
CHANCE OF PCPN......50 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 17 TO 20 MPH INCREASING TO 21 TO 26
MPH IN THE LATE MORNING AND AFTERNOON, THEN
SHIFTING TO THE SOUTH AROUND 20 MPH LATE IN THE
AFTERNOON.
MIXING HEIGHT.......2800 FT AGL.
SMOKE DISPERSAL.....POOR (9800 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (58800 KNOT-FT) IN THE
AFTERNOON.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........39 48 49 49 50 60 69 79 81 83 85 88
WEATHER COV..... SCH SCH SCH CHC CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW RW RW RW RW
TEMP............58 58 60 63 66 67 67 68 68 68 66 63
RH..............87 87 84 78 73 70 70 68 68 68 73 78
20 FT WIND DIR..210 210 210 210 210 210 210 210 210 200 200 190
20 FT WIND SPD..15 14 14 15 17 17 17 17 16 15 15 14
20 FT WIND GUST.23 22 23 25 28 28 29 28 26 25 23 21
MIX HGT (KFT)...0.8 0.7 1.2 1.8 2.3 2.5 2.6 2.8 2.6 2.5 2.3 2.1
TRANSP WIND DIR.220 220 220 220 220 220 220 210 200 200 190 190
TRANSP WIND SPD.18 17 20 23 26 23 24 24 25 23 21 20
CHC OF PCPN (%).0 10 10 10 20 20 20 40 40 40 50 50
VRATE KT-FT/1K..13 10 21 35 53 50 55 59 57 51 42 36
FORECASTER...KLUBER
REQUESTED BY...TAYLOR GRIFFIN
TYPE OF REQUEST...PRESCRIBED
.TAG 2508340.0/LOT
.DELDT 03/28/25
.FORMATTERVERSION 2.0.0
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