410
FNUS73 KPAH 081521
FWSPAH
SPOT FORECAST FOR BLUE GRASS SHOVELER PIT...INDIANA DNR
NATIONAL WEATHER SERVICE PADUCAH KY
1021 AM CDT MON SEP 8 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 WILL HOLD STRONG THRU THE SPOT BURN AT SITE. AS A RESULT,
ANOTHER COOL MORNING UNDER THE CAPPING INVERSION MEANS MIXING HEIGHTS
TAKE AWHILE TO GET LIFTING, AND ARE 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, CLOSER TO 30 PERCENT THAN 40 PERCENT. IF
MAXIMUM TEMPERATURES CAN EXCEED THE FORECAST HIGH OF 82 DEGREES BY EVEN
A COUPLE OF DEGREES, THIS COULD DRIVE THE MINIMUM RH INTO THE 20S
PERCENTILE BRIEFLY DURING THE PEAK HEATING OF THE AFTERNOON HOURS.
TUESDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
CWR.................0 PERCENT.
TEMPERATURE.........57 AT IGNITION...MAX 82.
RH..................75 PERCENT AT IGNITION...MIN 33 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WINDS EAST AT 3 MPH AT IGNITION...OTHERWISE
LIGHT WINDS.
MIXING HEIGHT.......400 FT AGL AT IGNITION...OTHERWISE 5900 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 7 TO 8 MPH SHIFTING TO THE SOUTH
AROUND 8 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR /3100 KNOT-FT/ AT IGNITION. MAX...FAIR
/42700 KNOT-FT/.
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MCR MCR MCR MCR MCR MCR MCR MCR PC MCR
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0
TEMP............57 62 71 75 77 79 81 81 81 80
RH..............75 67 49 41 39 35 33 34 35 38
20 FT WIND DIR..E E SE SE SE SE SE SE SE SE
20 FT WIND SPD..3 5 5 5 5 5 3 3 5 3
20 FT WIND GUST.6 7 7 8 7 7 7 7 7 6
MIX HGT (KFT)...0.4 0.8 1.2 2.5 4.0 5.1 5.8 5.9 5.4 3.9
TRANSP WIND DIR.E SE SE SE SE S S S S S
TRANSP WIND SPD.8 7 7 7 7 8 8 8 8 8
VRATE KT-FT/1K..3 5 7 15 26 36 42 43 38 25
VENTRATE CAT....PR PR PR PR PR PR FR FR PR PR
FORECASTER...WFO PADUCAH
REQUESTED BY...HILLARY BULCHER
TYPE OF REQUEST...PRESCRIBED
.TAG 2521558.0/PAH
.DELDT 09/08/25
.FORMATTERVERSION 2.0.0
.EMAIL HBULCHER@DNR.IN.GOV
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