Spot Forecast
Issued by NWS Paducah, KY
Issued by NWS Paducah, KY
359
FNUS73 KPAH 081322
FWSPAH
Spot Forecast for BSB Unit 11 Grassland...MDC
National Weather Service Paducah KY
822 AM CDT Tue Sep 8 2026
Forecast is based on ignition time of 1000 CDT on September 08.
If conditions become unrepresentative...contact the National Weather
Service.
.DISCUSSION...
Light southerly winds will limit mixing today, despite decent
mixing. Temperatures warm into the lower 90s with afternoon RHs
down to 40%. Southerly winds increase tonight leading to strong
mixing and dispersion tomorrow, with a chance of showers and
storms entering the forecast tomorrow afternoon.
.REST OF TODAY...
Sky/weather.........Sunny (10-20 percent).
CWR.................0 percent.
Temperature.........78 at ignition...Max 93.
RH..................67 percent at ignition...Min 40 percent.
Wind (20 ft)........
Slope/valley.......Winds south at 2 mph at ignition...otherwise
Light winds.
Mixing height.......1300 ft AGL at ignition...otherwise 4300 ft
AGL.
Transport winds.....South 3 to 7 mph.
Smoke dispersal.....Poor /6300 knot-ft/ at ignition. Max...poor
/22200 knot-ft/.
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky cover.......MCR MCR MCR MCR MCR MCR MCR MCR
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0
Temp............78 83 86 90 92 93 93 91
RH..............67 61 55 48 44 42 41 45
20 FT wind dir..S S S S S S S S
20 FT wind spd..2 2 2 2 2 2 2 2
20 FT wind gust.5 5 5 5 5 5 6 6
Mix hgt (kft)...1.3 2.4 3.1 3.6 3.8 4.3 4.2 3.7
Transp wind dir.S S S SE SE SE SE S
Transp wind spd.6 5 3 3 5 5 6 7
Vrate kt-ft/1K..6 10 9 11 15 17 21 22
Ventrate Cat....PR PR PR PR PR PR PR PR
.TONIGHT...
Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
Temperature.........Min 71.
RH..................Max 90 percent.
Wind (20 ft)........
Slope/valley.......Light winds becoming south 5 to 7 mph
overnight.
Mixing height.......400 ft AGL.
Transport winds.....South 7 to 14 mph.
Smoke dispersal.....Poor (2700 knot-ft).
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky cover.......MCR MCR PC MCR MCR CLR CLR CLR MCR MCR MCR MCR
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Temp............90 87 82 79 77 77 76 76 76 75 74 74
RH..............48 55 67 74 79 79 82 82 82 84 87 87
20 FT wind dir..S S S S S S S S S S S S
20 FT wind spd..2 2 2 3 3 3 5 6 7 7 7 7
20 FT wind gust.6 5 6 7 7 9 10 12 13 14 15 15
Mix hgt (kft)...1.3 0.4 0.4 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.4
Transp wind dir.S S S S S S S S S S S S
Transp wind spd.7 7 8 8 9 10 12 12 14 13 14 14
Vrate kt-ft/1K..8 3 3 3 4 4 5 4 5 5 6 5
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
.WEDNESDAY...
Sky/weather.........Sunny (15-25 percent) then becoming partly
sunny (50-60 percent) then becoming sunny
(15-25 percent). Slight chance of showers and
thunderstorms early in the afternoon. Chance of
showers and thunderstorms late in the
afternoon.
CWR.................0 percent.
Temperature.........Max 96.
RH..................Min 48 percent.
Wind (20 ft)........
Slope/valley.......Southwest winds 5 to 9 mph. Gusty and erratic
winds expected near thunderstorms late in the
afternoon.
Mixing height.......8900 ft AGL.
Transport winds.....Southwest 13 to 16 mph shifting to the west 10
to 15 mph in the afternoon.
Smoke dispersal.....Poor (5600 knot-ft) early in the morning
increasing to good (98100 knot-ft) in the
afternoon.
TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky cover.......CLEAR MCLEAR MCLEAR PCLDY MCLDY MCLEAR
Weather cov..... S CHC CHANCE
Weather type....NONE NONE NONE NONE RNSHWR RNSHWR
Tstm cov........ S CHC CHANCE
CWR.............0 0 0 0 0 0
Temp............73 75 85 93 96 94
RH..............87 84 65 52 48 51
20 FT wind dir..S S S SW SW SW
20 FT wind spd..7 8 9 8 7 6
20 FT wind gust.15 16 17 15 13 12
Mix hgt (kft)...0.5 1.1 1.9 3.8 8.6 5.8
Transp wind dir.S SW SW W SW SW
Transp wind spd.14 14 16 15 13 10
Vrate kt-ft/1K..6 13 26 49 94 52
Ventrate Cat....POOR POOR POOR FAIR GOOD FAIR
$$
Forecaster...LESAGE
Requested by...Kyle Lorenz
Type of request...PRESCRIBED
.TAG 2621415.0/PAH
.DELDT 09/08/26
.FormatterVersion 2.0.0
.EMAIL kyle.lorenz@mdc.mo.gov