031
FNUS73 KTOP 070926
FWSTOP
SPOT FORECAST FOR PT-141...BIA HORTON AGENCY
NATIONAL WEATHER SERVICE TOPEKA KS
426 AM CDT SUN SEP 7 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON SEPTEMBER 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
WINDS START OUT LIGHT AND VARIABLE EARLY THIS MORNING AND SHOULD
PICK UP FROM THE SOUTHEAST AROUND 5 MPH MID TO LATE MORNING. THEY
LOOK TO REMAIN LIGHT FROM THIS DIRECTION THROUGH THE AFTERNOON
AND EVENING. CONDITIONS OVERALL LOOK VERY SIMILAR TO YESTERDAY
WITH SUNNY SKIES AND TEMPERATURES JUST A FEW DEGREES WARMER IN
THE UPPER 70S; EVEN REACHING 80 ISN'T OUT OF THE QUESTION. RH
VALUES LOOK TO FALL TO THE 40-45% RANGE THIS AFTERNOON.
TODAY
SKY/WEATHER.........SUNNY.
CHANCE OF PCPN......0 PERCENT.
TEMPERATURE.........54 AT IGNITION...MAX 78.
RH..................77 PERCENT AT IGNITION...MIN 43 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WINDS EAST AT 2 MPH AT IGNITION...OTHERWISE
LIGHT WINDS BECOMING SOUTHEAST AROUND 5 MPH
LATE IN THE MORNING, THEN BECOMING LIGHT LATE
IN THE AFTERNOON.
MIXING HEIGHT.......300 FT AGL AT IGNITION...OTHERWISE 5900 FT AGL.
SMOKE DISPERSAL.....POOR /2700 KNOT-FT/ AT IGNITION. MAX...GOOD
/42800 KNOT-FT/.
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MCR CLR CLR CLR CLR CLR CLR MCR MCR MCR
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0
TEMP............54 59 65 69 72 74 76 77 78 77
RH..............77 69 58 55 51 48 46 45 43 45
20 FT WIND DIR..E SE SE SE SE SE S S S S
20 FT WIND SPD..2 3 4 5 5 5 5 5 5 4
20 FT WIND GUST.5 6 8 8 8 8 8 8 7 7
MIX HGT (KFT)...0.3 0.7 1.2 1.6 2.8 3.8 4.7 5.4 5.9 5.4
SDSPL KT-FT/10003 6 11 13 20 27 28 33 41 43
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF PCPN......0 PERCENT.
TEMPERATURE.........MIN 54.
RH..................MAX 86 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHEAST AROUND 5 MPH
AFTER 3 AM.
MIXING HEIGHT.......400 FT AGL.
SMOKE DISPERSAL.....FAIR (22900 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (2900 KNOT-FT) LATE IN THE
NIGHT.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY COVER.......MCR MCR MCR MCR MCR MCR MCR MCR MCR PC PC PC
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............76 73 69 65 62 60 59 58 57 55 55 54
RH..............46 53 61 68 75 78 80 80 83 86 83 83
20 FT WIND DIR..S SE SE SE SE SE SE SE SE SE SE S
20 FT WIND SPD..4 4 3 3 4 4 4 4 4 5 5 5
20 FT WIND GUST.7 7 6 7 7 8 8 9 9 11 12 12
MIX HGT (KFT)...2.9 0.7 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
SDSPL KT-FT/100023 6 3 3 3 4 4 4 4 4 4 4
MONDAY
SKY/WEATHER.........PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON.
CHANCE OF PCPN......20 PERCENT.
TEMPERATURE.........MAX 75.
RH..................MIN 57 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......SOUTH WINDS 6 TO 12 MPH.
MIXING HEIGHT.......3400 FT AGL.
SMOKE DISPERSAL.....POOR (4400 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (59500 KNOT-FT) IN THE
AFTERNOON.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......PC PC MC MC MC MC MC MC MC MC MC MC
WEATHER COV..... SCH SCH SCH SCH SCH
WEATHER TYPE.... RW RW RW RW RW
TSTM COV........
CHC OF PCPN (%).0 10 10 10 10 10 10 20 20 20 20 20
TEMP............54 55 58 61 65 69 72 73 74 75 75 74
RH..............83 77 72 70 65 61 57 57 57 58 58 59
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..6 6 7 8 9 10 11 12 12 12 11 10
20 FT WIND GUST.13 13 14 16 18 19 20 20 20 20 19 18
MIX HGT (KFT)...0.4 0.4 0.5 0.8 1.1 1.7 2.4 3.0 3.3 3.4 3.2 2.6
SDSPL KT-FT/10005 4 6 12 18 30 43 54 60 58 50 37
FORECASTER...PICHA
REQUESTED BY...RICK JONES
TYPE OF REQUEST...PRESCRIBED
.TAG 2521310.0/TOP
.DELDT 09/06/25
.FORMATTERVERSION 2.0.0
.EMAIL RICK.JONES@BIA.GOV
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