719
FNUS73 KLOT 301238
FWSLOT
SPOT FORECAST FOR RX WEST DUPAGE...FOREST PRESERVE DISTRICT OF DUPAGE COUNTY
NATIONAL WEATHER SERVICE CHICAGO IL
738 AM CDT MON MAR 30 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MARCH 30.
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
WARM, DRY AND BREEZY CONDITIONS ARE EXPECTED TODAY
WITH HIGH TEMPERATURES IN THE MID 70S AND MINIMUM RELATIVE HUMIDITY
LEVELS IN THE MID 40 PERCENT RANGE. SOUTHWEST WINDS WILL GUST INTO
THE MID 20 MPH RANGE.
THERE WILL BE INCREASING CHANCES FOR SHOWERS AND A FEW THUNDERSTORMS
LATE TONIGHT THROUGH TUESDAY EVENING, WHEN A COLD FRONT WILL MOVE
ACROSS THE AREA. PERIODS OF SHOWERS AND POSSIBLE THUNDERSTORMS ARE
EXPECTED THURSDAY THROUGH SATURDAY.
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
TEMPERATURE.........58 AT IGNITION...MAX 76.
RH..................68 PERCENT AT IGNITION...MIN 46 PERCENT.
WIND (20 FT)........WINDS SOUTHWEST AT 12 MPH AT
IGNITION...OTHERWISE SOUTHWEST WINDS 10 TO 13
MPH INCREASING TO 13 TO 14 MPH LATE IN THE
AFTERNOON.
CHANCE OF PCPN......0 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 20 TO 24 MPH.
MIXING HEIGHT.......1400 FT AGL AT IGNITION...OTHERWISE 4600 FT
AGL.
SMOKE DISPERSAL.....FAIR /25900 KNOT-FT/ AT IGNITION.
MAX...EXCELLENT /95800 KNOT-FT/.
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........56 46 37 27 32 28 39 41
WEATHER COV.....
WEATHER TYPE....
TEMP............58 63 68 72 74 76 76 76
RH..............68 62 56 51 48 46 46 47
20 FT WIND DIR..210 220 220 220 220 220 210 220
20 FT WIND SPD..12 12 13 13 13 14 15 14
20 FT WIND GUST.18 21 22 22 22 23 25 23
MIX HGT (KFT)...1.4 2.2 2.7 3.3 4.1 4.6 4.6 3.9
TRANSP WIND DIR.210 220 220 220 220 220 210 220
TRANSP WIND SPD.21 22 22 20 23 24 24 24
CHC OF PCPN (%).0 0 0 0 0 0 0 0
VRATE KT-FT/1K..26 42 51 56 81 96 95 79
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
OVERNIGHT. CHANCE OF SHOWERS AND THUNDERSTORMS
AFTER 3 AM.
TEMPERATURE.........MIN 63.
RH..................MAX 79 PERCENT.
WIND (20 FT)........SOUTH WINDS 9 TO 12 MPH INCREASING TO SOUTHWEST
13 TO 16 MPH LATE IN THE EVENING. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
OVERNIGHT.
CHANCE OF PCPN......30 PERCENT.
TRANSPORT WINDS.....SOUTH 17 TO 22 MPH INCREASING TO SOUTHWEST 23
TO 28 MPH OVERNIGHT, THEN DECREASING TO AROUND
21 MPH EARLY IN THE MORNING.
MIXING HEIGHT.......700 FT AGL.
SMOKE DISPERSAL.....GOOD (30200 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (10500 KNOT-FT) LATE IN THE
NIGHT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........42 39 46 50 57 65 60 62 65 72 77 78
WEATHER COV..... SCH SCH SCH SCH CHC CHC
WEATHER TYPE.... RW RW RW RW RW RW
TEMP............74 72 70 69 68 68 67 67 66 65 65 64
RH..............50 54 60 62 65 66 68 71 71 73 75 74
20 FT WIND DIR..210 200 200 190 190 200 210 220 220 240 240 230
20 FT WIND SPD..13 10 10 12 13 14 15 16 17 17 18 17
20 FT WIND GUST.21 17 15 15 16 18 21 23 24 25 26 25
MIX HGT (KFT)...1.3 0.7 0.7 0.7 0.8 0.9 0.9 1.0 1.1 1.2 1.3 1.1
TRANSP WIND DIR.210 200 200 190 190 200 210 220 220 230 240 230
TRANSP WIND SPD.18 17 18 20 20 22 24 24 24 23 28 21
CHC OF PCPN (%).0 0 0 0 10 10 20 20 20 20 30 30
VRATE KT-FT/1K..21 11 11 12 14 17 19 21 22 24 30 21
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE MORNING. CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
EARLY IN THE AFTERNOON, THEN SHOWERS AND CHANCE
OF THUNDERSTORMS LATE IN THE AFTERNOON.
TEMPERATURE.........MAX 76.
RH..................MIN 55 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 15 TO 18 MPH WITH GUSTS TO
AROUND 33 MPH SHIFTING TO THE WEST 16 TO 17 MPH
WITH GUSTS TO AROUND 31 MPH LATE IN THE
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS EARLY IN THE MORNING. GUSTY
AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
IN THE AFTERNOON.
CHANCE OF PCPN......80 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 20 TO 22 MPH INCREASING TO 28 TO 32
MPH IN THE LATE MORNING AND EARLY AFTERNOON,
THEN BECOMING WEST 21 TO 25 MPH LATE IN THE
AFTERNOON.
MIXING HEIGHT.......3300 FT AGL.
SMOKE DISPERSAL.....FAIR (19600 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (89500 KNOT-FT) IN THE
AFTERNOON.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........77 80 76 71 68 63 69 79 84 83 82 83
WEATHER COV.....SCH CHC CHC CHC DEF DEF
WEATHER TYPE....RW RW RW RW RW RW
TEMP............63 63 64 66 69 72 74 75 76 75 74 71
RH..............77 79 78 74 68 63 58 56 55 56 59 63
20 FT WIND DIR..220 210 210 210 210 220 230 230 230 240 250 280
20 FT WIND SPD..17 16 17 18 21 22 22 23 21 20 18 18
20 FT WIND GUST.23 26 29 31 33 35 35 35 32 31 30 29
MIX HGT (KFT)...1.1 1.2 1.4 1.9 2.3 2.7 3.0 3.3 2.6 2.6 2.6 2.2
TRANSP WIND DIR.220 210 210 210 210 220 230 230 230 240 250 270
TRANSP WIND SPD.20 22 22 28 30 32 31 31 28 25 23 21
CHC OF PCPN (%).20 10 10 10 10 10 10 30 30 30 80 80
VRATE KT-FT/1K..20 22 27 45 59 75 81 90 64 57 52 39
FORECASTER...CMS
REQUESTED BY...ADAM CARLSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2608505.0/LOT
.DELDT 03/30/26
.FORMATTERVERSION 2.0.0
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