192
FNUS73 KLOT 291533
FWSLOT
SPOT FORECAST FOR COWLES DUNE RX...INDIANA DUNES NATIONAL PARK
NATIONAL WEATHER SERVICE CHICAGO IL
1033 AM CDT SUN MAR 29 2026
FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON MARCH 29.
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
RHS HAVE FALLEN QUICKER THAN ORIGINALLY ANTICIPATED WITH UPPER 30
PERCENT RANGE AT THE BURN SITE ALREADY. RHS WILL CONTINUE TO DROP
INTO THE LOW 30S WITH A NON-ZERO CHANCE FOR TOUCHING THE UPPER 20S
IF AFTERNOON TEMPERATURES END UP WARMER THAN ANTICIPATED.
CLOUD COVER OVER THE AREA SHOULD LIMIT DAYTIME HEATING TO HELP
ADD CONFIDENCE IN THE MINIMUM RH FORECAST. WINDS ARE OUT OF THE
SOUTHWEST BETWEEN 20 TO 25 MPH, BUT ISOLATED GUSTS AROUND 30 MPH
ARE POSSIBLE, ESPECIALLY IN THE AFTERNOON. MODEST HUMIDITY
RECOVERY IS EXPECTED OVERNIGHT WITH LOW TEMPERATURES DROPPING
INTO THE UPPER 40S AS WINDS DIMINISH.
WARMING TEMPERATURES ARE EXPECTED ON MONDAY. BREEZY WINDS REMAIN
OUT OF THE SOUTH WITH MIN RHS IN THE 40S. ANY CHANCES FOR
SHOWERS AND STORMS ARE LOW AND NOT UNTIL MONDAY NIGHT.
REST OF TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
TEMPERATURE.........51 AT IGNITION...MAX 57.
RH..................38 PERCENT AT IGNITION...MIN 34 PERCENT.
WIND (20 FT)........WINDS SOUTH AT 14 MPH AT IGNITION...OTHERWISE
SOUTH WINDS 13 TO 14 MPH.
CHANCE OF PCPN......0 PERCENT.
TRANSPORT WINDS.....SOUTH 18 TO 20 MPH.
MIXING HEIGHT.......1400 FT AGL AT IGNITION...OTHERWISE 2900 FT
AGL.
SMOKE DISPERSAL.....FAIR /22500 KNOT-FT/ AT IGNITION. MAX...GOOD
/48200 KNOT-FT/.
TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........48 47 47 56 66 76 76
WEATHER COV.....
WEATHER TYPE....
TEMP............51 52 53 55 57 56 56
RH..............38 38 37 35 33 35 36
20 FT WIND DIR..200 200 200 200 200 200 200
20 FT WIND SPD..14 14 15 15 15 15 14
20 FT WIND GUST.22 22 22 22 22 23 22
MIX HGT (KFT)...1.4 2.2 2.8 2.9 2.5 2.1 1.7
TRANSP WIND DIR.200 200 210 200 200 200 200
TRANSP WIND SPD.20 18 18 20 20 20 20
CHC OF PCPN (%).0 0 0 0 0 0 0
VRATE KT-FT/1K..23 35 45 48 42 35 28
WARMING TEMPERATURES ARE EXPECTED ON MONDAY. BREEZY WINDS REMAIN
OUT OF THE SOUTH WITH MIN RHS IN THE 40S. ANY CHANCES FOR
SHOWERS AND STORMS ARE LOW AND NOT UNTIL MONDAY NIGHT.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
TEMPERATURE.........MIN 47.
RH..................MAX 82 PERCENT.
WIND (20 FT)........SOUTH WINDS 10 TO 13 MPH.
CHANCE OF PCPN......0 PERCENT.
TRANSPORT WINDS.....SOUTH 16 TO 20 MPH.
MIXING HEIGHT.......600 FT AGL.
SMOKE DISPERSAL.....FAIR (18900 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (9300 KNOT-FT) LATE IN THE
NIGHT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........76 77 70 63 56 51 46 40 39 38 36 39
WEATHER COV.....
WEATHER TYPE....
TEMP............57 54 52 51 50 50 49 49 49 49 49 48
RH..............37 42 50 55 58 62 65 67 69 70 73 75
20 FT WIND DIR..190 190 190 190 190 190 200 200 200 200 200 200
20 FT WIND SPD..14 13 12 12 12 12 12 12 12 12 12 12
20 FT WIND GUST.21 18 16 17 18 17 18 18 18 18 18 18
MIX HGT (KFT)...1.2 0.8 0.8 0.7 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6
TRANSP WIND DIR.190 190 190 190 190 190 200 200 200 200 200 210
TRANSP WIND SPD.18 17 16 17 17 20 20 20 20 20 18 20
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
VRATE KT-FT/1K..19 12 11 11 10 11 12 11 11 10 9 10
MONDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN
BECOMING PARTLY CLOUDY.
TEMPERATURE.........MAX 72.
RH..................MIN 46 PERCENT.
WIND (20 FT)........SOUTH WINDS 10 TO 13 MPH.
CHANCE OF PCPN......0 PERCENT.
TRANSPORT WINDS.....SOUTH 17 TO 20 MPH.
MIXING HEIGHT.......2300 FT AGL.
SMOKE DISPERSAL.....POOR (9300 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (37900 KNOT-FT) IN THE
AFTERNOON.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........43 46 51 55 54 38 33 37 40 42 43 44
WEATHER COV.....
WEATHER TYPE....
TEMP............48 47 49 53 57 61 64 66 68 70 72 72
RH..............78 78 76 72 67 60 56 53 50 48 46 46
20 FT WIND DIR..200 200 200 200 200 200 200 200 200 200 200 200
20 FT WIND SPD..12 12 12 13 13 13 13 13 13 13 14 13
20 FT WIND GUST.17 16 16 16 17 20 20 18 18 20 20 20
MIX HGT (KFT)...0.6 0.6 0.7 0.8 1.0 1.3 1.9 2.1 2.3 2.2 2.1 1.7
TRANSP WIND DIR.200 200 200 200 200 200 200 200 200 200 200 200
TRANSP WIND SPD.18 18 20 20 20 20 20 18 18 18 17 17
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
VRATE KT-FT/1K..10 9 11 14 17 22 32 35 38 35 32 26
FORECASTER...KING
REQUESTED BY...MIKE BASCHEN
TYPE OF REQUEST...PRESCRIBED
.TAG 2608351.0/LOT
.DELDT 03/29/26
.FORMATTERVERSION 2.0.0
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