247
FNUS73 KLOT 301043
FWSLOT
SPOT FORECAST FOR RX BLWO1 FPDDC...FOREST PRESERVE DISTRICT OF DUPAGE COUNTY
NATIONAL WEATHER SERVICE CHICAGO IL
543 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
ANOTHER WARM, DRY, AND BREEZY DAY IS EXPECTED FOR TODAY WITH
TEMPERATURES TOPPING OUT IN THE MID TO UPPER 70S THIS AFTERNOON.
DEW POINTS THIS MORNING WILL START OFF IN THE MID-30S AT THE BURN
SITE BUT WILL GRADUALLY RISE THROUGH THE DAY. THIS WILL RESULT IN
MINIMUM AFTERNOON HUMIDITIES AROUND 40-45%. THE WARMER
TEMPERATURES WILL ALLOW MIXING HEIGHTS TO PEAK AROUND 4000 TO 4500
FT THIS AFTERNOON WHICH WILL AID IN PRODUCING BREEZY SOUTHWEST
WINDS. PEAK GUSTS THIS AFTERNOON WILL BE AROUND 20 TO 25 MPH BUT
LOCALIZED GUSTS TO 30 MPH WILL BE POSSIBLE ESPECIALLY AFTER 2 PM.
A WEATHER SYSTEM WILL MOVE THROUGH THE AREA TONIGHT AND BRING
WITH IT A 20-30% CHANCE FOR ISOLATED TO WIDELY SCATTERED SHOWERS
AND THUNDERSTORMS, MAINLY AFTER MIDNIGHT. IF THUNDERSTORMS OCCUR
TONIGHT THEY COULD BECOME STRONG TO SEVERE WITH HAIL AND GUSTY
WINDS THE MAIN THREAT. A BETTER COVERAGE OF SHOWERS AND
THUNDERSTORMS ARE EXPECTED TUESDAY AFTERNOON AND EVENING AS A COLD
FRONT MOVE THROUGH THE AREA. A FEW OF THESE STORMS COULD BE STRONG
TO SEVERE AS WELL WITH DAMAGING HAIL AND WINDS. OUTSIDE OF THE
STORMS, WINDS ON TUESDAY WILL BE NOTABLY STRONGER THAN TODAY WITH
GUSTS AROUND 30-35 MPH OUT OF THE SOUTHWEST INITIALLY BUT
BECOMING NORTHWEST BEHIND THE FRONT.
BEYOND TUESDAY, MORE SEASONABLE TEMPERATURES CAN BE EXPECTED ALONG
WITH ADDITIONAL PERIODS OF RAIN ESPECIALLY THURSDAY THROUGH
SATURDAY.
REST OF TODAY
SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........58 AT IGNITION...MAX 77.
RH..................74 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 /24500 KNOT-FT/ AT IGNITION.
MAX...EXCELLENT /96100 KNOT-FT/.
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........45 36 26 27 31 28 39 41
WEATHER COV.....
WEATHER TYPE....
TEMP............58 64 68 72 75 76 77 76
RH..............74 65 58 52 48 46 46 46
20 FT WIND DIR..210 220 220 220 220 220 210 220
20 FT WIND SPD..12 13 13 13 14 14 15 14
20 FT WIND GUST.21 22 22 22 22 23 25 23
MIX HGT (KFT)...1.4 2.2 2.7 3.3 4.1 4.6 4.6 3.7
TRANSP WIND DIR.210 220 220 220 220 220 210 220
TRANSP WIND SPD.21 22 22 20 23 24 24 23
CHC OF PCPN (%).0 0 0 0 0 0 0 0
VRATE KT-FT/1K..25 41 52 57 83 96 96 75
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 80 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.....FAIR (29400 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (10100 KNOT-FT) LATE IN THE
NIGHT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........42 39 45 50 57 65 60 63 66 73 77 78
WEATHER COV..... SCH SCH SCH SCH CHC CHC
WEATHER TYPE.... RW RW RW RW RW RW
TEMP............75 72 70 69 68 68 67 67 66 65 65 64
RH..............50 54 60 61 64 66 68 70 72 73 75 74
20 FT WIND DIR..210 190 190 190 190 200 210 220 220 240 240 230
20 FT WIND SPD..13 10 10 12 13 14 15 16 17 17 18 17
20 FT WIND GUST.21 18 15 15 16 18 21 23 25 25 26 25
MIX HGT (KFT)...1.4 0.7 0.7 0.7 0.8 0.9 0.9 1.0 1.1 1.2 1.2 1.1
TRANSP WIND DIR.210 190 190 190 190 200 210 220 220 240 240 230
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..22 10 11 12 14 17 20 21 23 23 29 20
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE MORNING, THEN SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
TEMPERATURE.........MAX 76.
RH..................MIN 55 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 15 TO 17 MPH WITH GUSTS TO
AROUND 31 MPH INCREASING TO 18 TO 21 MPH WITH
GUSTS TO AROUND 35 MPH IN THE LATE MORNING AND
EARLY AFTERNOON, THEN 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.
CHANCE OF PCPN......70 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 (19700 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (89800 KNOT-FT) IN THE
AFTERNOON.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........77 80 76 71 69 62 68 79 84 84 82 83
WEATHER COV.....SCH CHC CHC CHC LKY LKY
WEATHER TYPE....RW RW RW RW RW RW
TEMP............63 63 64 66 69 72 74 75 76 76 74 72
RH..............77 80 78 74 69 62 58 56 55 56 58 62
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 1.1 1.4 1.9 2.3 2.7 3.0 3.3 2.8 2.7 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 30 31 28 25 23 21
CHC OF PCPN (%).20 10 10 10 10 10 10 30 30 30 70 70
VRATE KT-FT/1K..20 21 27 45 60 76 79 90 68 60 54 41
FORECASTER...YACK
REQUESTED BY...ADAM CARLSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2608456.0/LOT
.DELDT 03/30/26
.FORMATTERVERSION 2.0.0
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