515
FNUS73 KTOP 061003
FWSTOP
SPOT FORECAST FOR PT-141...BIA HORTON AGENCY
NATIONAL WEATHER SERVICE TOPEKA KS
503 AM CDT SAT SEP 6 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON SEPTEMBER 06.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
FOG WILL BURN OFF WITHIN AN HOUR OR TWO AFTER SUNRISE WITH SUNNY
SKIES PREVAILING THE REST OF TODAY. ALONG WITH THIS, SMOKE
DISPERSAL LOOKS POOR EARLY THIS MORNING, BUT SHOULD IMPROVE MID TO
LATE MORNING AS MIXING HEIGHTS DEEPEN. WINDS WILL STAY LIGHT FROM
AROUND THE WSW THROUGH TODAY, TURNING LIGHT AND VARIABLE THIS
EVENING. TEMPERATURES LOOK TO REACH THE MID 70S THIS AFTERNOON
WITH RH FALLING DOWN TO AROUND 45-50%. SUNDAY LOOKS LIKE A NEAR
REPEAT OF TODAY, EXCEPT WITH TEMPERATURES SLIGHTLY WARMER IN THE
UPPER 70S AND WINDS TURNING TO THE SSE.
TODAY
SKY/WEATHER.........SUNNY. PATCHY FOG EARLY IN THE MORNING.
CHANCE OF PCPN......0 PERCENT.
TEMPERATURE.........49 AT IGNITION...MAX 74.
RH..................93 PERCENT AT IGNITION...MIN 46 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WINDS WEST AT 2 MPH AT IGNITION...OTHERWISE
LIGHT WINDS BECOMING WEST AROUND 5 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......400 FT AGL AT IGNITION...OTHERWISE 6400 FT AGL.
SMOKE DISPERSAL.....POOR /2600 KNOT-FT/ AT IGNITION.
MAX...EXCELLENT /83200 KNOT-FT/.
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MCR MCR CLR CLR CLR CLR MCR MCR MCR MCR
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0
TEMP............49 53 60 64 67 70 72 73 73 73
RH..............93 89 75 65 56 51 49 48 46 48
20 FT WIND DIR..W W W W W W W W W W
20 FT WIND SPD..2 2 3 4 5 5 5 5 5 5
20 FT WIND GUST.5 5 6 7 8 9 9 9 9 8
MIX HGT (KFT)...0.4 0.5 1.0 1.5 3.1 4.9 5.4 6.0 6.4 6.0
SDSPL KT-FT/10003 4 7 12 31 63 70 78 83 72
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF PCPN......0 PERCENT.
TEMPERATURE.........MIN 50.
RH..................MAX 86 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS.
MIXING HEIGHT.......300 FT AGL.
SMOKE DISPERSAL.....FAIR (28300 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (1800 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 PC PC PC PC MCR MCR MCR MCR MCR
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............74 72 68 62 60 58 57 55 54 54 52 52
RH..............46 51 57 67 69 75 77 80 80 77 83 80
20 FT WIND DIR..W W SW NW NE NE NE NE E E E E
20 FT WIND SPD..4 3 2 2 2 2 2 2 2 2 2 2
20 FT WIND GUST.7 6 5 5 5 5 5 5 5 5 5 5
MIX HGT (KFT)...3.1 0.9 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3
SDSPL KT-FT/100028 6 2 3 2 2 2 2 3 3 3 2
SUNDAY
SKY/WEATHER.........SUNNY.
CHANCE OF PCPN......0 PERCENT.
TEMPERATURE.........MAX 77.
RH..................MIN 45 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHEAST AROUND 5 MPH
LATE IN THE MORNING.
MIXING HEIGHT.......5500 FT AGL.
SMOKE DISPERSAL.....POOR (2400 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (33200 KNOT-FT) IN THE
AFTERNOON.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR CLR
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............51 50 53 57 64 67 69 71 73 75 76 76
RH..............83 86 83 77 63 59 57 53 49 46 45 45
20 FT WIND DIR..E E E SE SE SE SE SE SE S S S
20 FT WIND SPD..2 2 2 3 4 5 5 5 5 5 5 5
20 FT WIND GUST.5 5 6 7 8 9 9 9 9 8 8 8
MIX HGT (KFT)...0.3 0.3 0.4 0.9 1.3 2.2 3.0 3.7 4.7 5.5 5.5 4.1
SDSPL KT-FT/10002 2 3 8 11 15 19 22 27 32 33 26
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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