037
FNUS73 KLOT 011119
FWSLOT
SPOT FORECAST FOR MIDEWIN RX 4.1.25...MIDEWIN
NATIONAL WEATHER SERVICE CHICAGO IL
619 AM CDT TUE APR 1 2025
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON APRIL 01.
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
EASTERLY WINDS WILL STEADILY INCREASE TODAY WITH GUSTS
AS HIGH AS 25 MPH THIS AFTERNOON. THESE GUSTS WILL INCREASE INTO THE
35 MPH RANGE TONIGHT AND CONTINUE THAT STRONG ON WEDNESDAY. SHOWERS
AND SCATTERED THUNDERSTORMS ARE EXPECTED TONIGHT. SOME OF THESE
STORMS MAY PRODUCE HEAVY RAIN AND SMALL HAIL. SHOWERS AND SCATTERED
THUNDERSTORMS ARE EXPECTED ON WEDNESDAY AND SOME OF THESE STORMS
MAY BECOME SEVERE, ESPECIALLY IN THE AFTERNOON.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY THEN
BECOMING MOSTLY CLOUDY.
TEMPERATURE.........30 AT IGNITION...MAX 48.
RH..................85 PERCENT AT IGNITION...MIN 42 PERCENT.
WIND (20 FT)........WINDS EAST AT 7 MPH AT IGNITION...OTHERWISE
EAST WINDS 6 TO 8 MPH INCREASING TO SOUTHEAST
14 TO 15 MPH.
CHANCE OF PCPN......10 PERCENT.
TRANSPORT WINDS.....EAST 12 TO 17 MPH SHIFTING TO THE SOUTHEAST 18
TO 20 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......600 FT AGL AT IGNITION...OTHERWISE 3400 FT AGL.
SMOKE DISPERSAL.....POOR /5600 KNOT-FT/ AT IGNITION. MAX...GOOD
/58400 KNOT-FT/.
TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........25 29 34 38 48 57 66 74 82 91 94
WEATHER COV.....
WEATHER TYPE....
TEMP............30 33 36 39 42 44 46 47 48 48 48
RH..............85 75 64 57 51 45 43 42 42 44 46
20 FT WIND DIR..100 100 100 110 110 110 110 120 120 120 120
20 FT WIND SPD..7 9 12 13 13 14 14 14 15 16 16
20 FT WIND GUST.13 14 15 17 20 21 21 21 22 23 24
MIX HGT (KFT)...0.6 1.7 2.3 2.5 2.6 2.8 3.1 3.2 3.4 3.4 2.9
TRANSP WIND DIR.090 100 100 100 110 100 110 110 140 140 130
TRANSP WIND SPD.12 14 13 12 14 16 17 18 20 20 20
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 10
VRATE KT-FT/1K..6 21 26 25 31 39 46 51 58 58 50
TONIGHT
SKY/WEATHER.........CLOUDY. CHANCE OF RAIN SHOWERS IN THE EVENING,
THEN SHOWERS AND THUNDERSTORMS OVERNIGHT.
TEMPERATURE.........MIN 45.
RH..................MAX 90 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 15 TO 18 MPH WITH GUSTS TO
AROUND 33 MPH INCREASING TO 20 TO 21 MPH WITH
GUSTS TO AROUND 35 MPH AFTER 3 AM. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.
CHANCE OF PCPN......90 PERCENT.
TRANSPORT WINDS.....SOUTHEAST 20 TO 24 MPH INCREASING TO 24 TO 29
MPH LATE IN THE EVENING.
MIXING HEIGHT.......700 FT AGL.
SMOKE DISPERSAL.....GOOD (39600 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (12400 KNOT-FT) LATE IN THE
NIGHT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........97 100 100 100 100 100 100 100 100 100 100 100
WEATHER COV..... SCH CHC CHC CHC LKY DEF DEF DEF
WEATHER TYPE.... RW RW RW RW RW RW RW RW
TEMP............47 47 46 45 45 46 46 46 45 45 45 46
RH..............49 51 56 60 63 63 68 71 76 79 82 83
20 FT WIND DIR..120 110 120 120 120 130 130 120 120 120 130 130
20 FT WIND SPD..16 16 16 17 18 20 21 21 21 22 22 23
20 FT WIND GUST.25 25 26 28 29 30 31 33 33 35 35 35
MIX HGT (KFT)...2.2 0.8 0.7 0.7 0.8 1.0 1.1 1.0 1.0 1.1 1.1 1.2
TRANSP WIND DIR.130 120 130 130 130 130 130 130 140 130 130 140
TRANSP WIND SPD.21 20 20 20 24 26 24 24 24 28 29 29
CHC OF PCPN (%).10 10 10 10 20 30 40 50 70 80 80 90
VRATE KT-FT/1K..40 13 12 12 18 22 22 20 22 25 28 31
WEDNESDAY
SKY/WEATHER.........CLOUDY. THUNDERSTORMS IN THE MORNING AND EARLY
AFTERNOON. RAIN SHOWERS THROUGH THE DAY.
THUNDERSTORMS LIKELY LATE IN THE AFTERNOON.
TEMPERATURE.........MAX 70.
RH..................MIN 78 PERCENT.
WIND (20 FT)........SOUTH WINDS 20 TO 23 MPH SHIFTING TO THE
SOUTHWEST AROUND 23 MPH LATE IN THE AFTERNOON.
GUSTS UP TO 39 MPH. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS.
CHANCE OF PCPN......100 PERCENT.
TRANSPORT WINDS.....SOUTH 25 TO 30 MPH DECREASING TO 23 TO 26 MPH
LATE IN THE MORNING, THEN INCREASING TO 30 TO
33 MPH EARLY IN THE AFTERNOON SHIFTING TO THE
SOUTHWEST 36 TO 38 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......2900 FT AGL.
SMOKE DISPERSAL.....FAIR (25800 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (97900 KNOT-FT) IN THE
AFTERNOON.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........100 100 100 100 100 100 100 100 99 98 96 87
WEATHER COV.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TEMP............47 49 51 54 57 60 63 65 67 69 70 70
RH..............86 86 89 90 90 90 90 90 87 81 78 78
20 FT WIND DIR..140 150 150 160 170 180 180 190 200 200 210 210
20 FT WIND SPD..23 22 22 22 22 22 22 23 24 25 25 25
20 FT WIND GUST.35 35 35 35 35 35 36 37 39 39 39 37
MIX HGT (KFT)...1.2 1.1 1.2 1.2 1.2 1.4 1.6 1.7 2.1 2.5 2.9 2.4
TRANSP WIND DIR.140 150 170 170 180 190 200 200 200 200 210 210
TRANSP WIND SPD.30 29 28 26 25 23 26 30 33 37 38 36
CHC OF PCPN (%).90 90 90 90 100 100 100 100 100 100 90 90
VRATE KT-FT/1K..32 27 28 27 26 27 35 45 62 81 98 75
FORECASTER...CMS
REQUESTED BY...TAYLOR GRIFFIN
TYPE OF REQUEST...PRESCRIBED
.TAG 2508566.0/LOT
.DELDT 04/01/25
.FORMATTERVERSION 2.0.0
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page