569
FNUS73 KPAH 091309
FWSPAH
SPOT FORECAST FOR BLUE GRASS - SHOVELER PIT...INDIANA DNR
NATIONAL WEATHER SERVICE PADUCAH KY
809 AM CDT TUE SEP 9 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON SEPTEMBER 09.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
HIGH PRESSURE HOLDS STRONG TODAY AT THE BURN SITE. THE COOL MORNING START
MEANS THE CAPPING INVERSION TAKES AWHILE TO LIFT, AND IS NOT FORECAST
TO REACH OR EXCEED THE CRITICAL 1700 FOOT AGL UNTIL BETWEEN 10-11 AM CDT.
WITH THE AFTERNOON HEATING UP, AND THE DRY AIR IN PLACE, PLAN FOR RH VALUES
TO BOTTOM OUT THROUGH THE 30S PERCENTILE, CLOSE TO 30 PERCENT. IF
MAXIMUM TEMPERATURES CAN EXCEED THE FORECAST HIGH OF 81 DEGREES BY EVEN
2-3 DEGREES, THIS COULD DRIVE THE MINIMUM RH INTO THE 20S PERCENTILE DURING
THE PEAK HEATING OF THE AFTERNOON HOURS.
TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR.................0 PERCENT.
TEMPERATURE.........57 AT IGNITION...MAX 81.
RH..................74 PERCENT AT IGNITION...MIN 30 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WINDS SOUTHEAST AT 3 MPH AT
IGNITION...OTHERWISE LIGHT WINDS BECOMING EAST
AROUND 5 MPH LATE IN THE MORNING, THEN BECOMING
LIGHT IN THE AFTERNOON.
MIXING HEIGHT.......500 FT AGL AT IGNITION...OTHERWISE 5900 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 5 TO 8 MPH.
SMOKE DISPERSAL.....POOR /3000 KNOT-FT/ AT IGNITION. MAX...POOR
/29700 KNOT-FT/.
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MCR MCR CLR MCR MCR MCR MCR MCR MCR MCR
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0
TEMP............57 61 69 73 76 79 79 80 81 79
RH..............74 65 49 41 36 31 31 30 30 32
20 FT WIND DIR..SE E SE E E SE SE SE SE E
20 FT WIND SPD..3 6 6 6 6 5 5 5 5 5
20 FT WIND GUST.6 9 8 7 6 6 6
MIX HGT (KFT)...0.5 1.0 1.4 3.6 4.9 5.5 5.9 5.9 5.9 5.5
TRANSP WIND DIR.SE SE SE SE SE SE SE SE SE SE
TRANSP WIND SPD.7 8 7 6 6 6 6 5 6 6
VRATE KT-FT/1K..3 7 9 18 24 28 29 24 30 28
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR
FORECASTER...WFO PADUCAH
REQUESTED BY...HILLARY BULCHER
TYPE OF REQUEST...PRESCRIBED
.TAG 2521619.0/PAH
.DELDT 09/09/25
.FORMATTERVERSION 2.0.0
.EMAIL HBULCHER@DNR.IN.GOV
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