896
FNUS73 KTOP 050948
FWSTOP
SPOT FORECAST FOR PT-85/60/72...BIA HORTON AGENCY
NATIONAL WEATHER SERVICE TOPEKA KS
448 AM CDT FRI SEP 5 2025
FORECAST IS BASED ON IGNITION TIME OF 0800 CDT ON SEPTEMBER 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
THERE IS A SMALL (~20%) CHANCE FOR SOME LIGHT RAIN TO IMPACT THE
BURN SITE THIS MORNING, ALTHOUGH BETTER CHANCES ARE FOCUSED SOUTH
OF THE AREA. ANY RAIN SHOULD BE SOUTH OF THE SITE BY NOON OR
SHORTLY AFTER. MOSTLY CLOUDY SKIES LOOK TO REMAIN IN PLACE
THROUGH THE DAY, KEEPING COOLER CONDITIONS WITH HIGH TEMPERATURES
IN THE MID TO UPPER 60S AND RH VALUES BETWEEN 45-50%. WINDS SHOULD
STAY LIGHT, MAINLY FROM THE NORTH TO NORTHWEST FOR MOST OF THE
DAY BEFORE BACKING TOWARD THE WEST LATE THIS AFTERNOON. SKIES
CLEAR INTO THE EVENING AND OVERNIGHT HOURS WITH LIGHT AND VARIABLE
WINDS PICKING UP A BIT FROM THE SSW DURING THE DAY SATURDAY BUT
REMAINING LIGHT. SATURDAY BRINGS MORE SUNSHINE WITH TEMPERATURES
BACK INTO THE 70S AND RH FALLING DOWN TO 40-45% IN THE AFTERNOON.
TODAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE MORNING, THEN CHANCE
OF RAIN SHOWERS EARLY IN THE MORNING. SLIGHT
CHANCE OF RAIN SHOWERS LATE IN THE MORNING.
CHANCE OF PCPN......30 PERCENT.
TEMPERATURE.........59 AT IGNITION...MAX 66.
RH..................67 PERCENT AT IGNITION...MIN 50 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......WINDS NORTH AT 5 MPH AT IGNITION...OTHERWISE
NORTHWEST WINDS 5 TO 6 MPH SHIFTING TO THE WEST
AROUND 5 MPH LATE IN THE AFTERNOON. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS EARLY
IN THE MORNING.
MIXING HEIGHT.......500 FT AGL AT IGNITION...OTHERWISE 3900 FT AGL.
SMOKE DISPERSAL.....POOR /4500 KNOT-FT/ AT IGNITION. MAX...GOOD
/42400 KNOT-FT/.
TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY COVER.......CDY CDY MC MC CDY MC MC MC MC MC
WEATHER COV.....CHC SCH SCH SCH
WEATHER TYPE....RW RW RW RW
TSTM COV........
CHC OF PCPN (%).30 20 20 20 10 10 10 10 10 0
TEMP............59 59 62 62 63 64 64 66 64 64
RH..............67 69 60 58 56 54 54 50 52 54
20 FT WIND DIR..N N NW N NW NW NW NW NW W
20 FT WIND SPD..5 5 5 6 6 5 5 5 5 5
20 FT WIND GUST.11 11 12 11 11 9 9 9 9 8
MIX HGT (KFT)...0.5 0.7 1.4 1.4 2.5 2.7 3.7 3.7 3.9 3.3
SDSPL KT-FT/10005 7 16 16 30 27 41 40 42 33
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN
BECOMING MOSTLY CLEAR.
CHANCE OF PCPN......0 PERCENT.
TEMPERATURE.........MIN 46.
RH..................MAX 93 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS.
MIXING HEIGHT.......300 FT AGL.
SMOKE DISPERSAL.....FAIR (16800 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (2100 KNOT-FT) LATE IN THE
NIGHT.
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY COVER.......MCLDY MCLDY MCLEAR CLEAR MCLEAR MCLEAR
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0 0 0
TEMP............64 59 55 52 50 48
RH..............54 64 72 80 83 89
20 FT WIND DIR..W W W W W W
20 FT WIND SPD..4 3 2 2 2 2
20 FT WIND GUST.7 6 5 5 5 6
MIX HGT (FT)....1900 400 400 300 300 300
SDSPL KT-FT/100017 2 2 2 3 2
SATURDAY
SKY/WEATHER.........SUNNY.
CHANCE OF PCPN......0 PERCENT.
TEMPERATURE.........MAX 74.
RH..................MIN 44 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT WINDS BECOMING WEST AROUND 5 MPH LATE IN
THE AFTERNOON.
MIXING HEIGHT.......7100 FT AGL.
SMOKE DISPERSAL.....POOR (1600 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (99100 KNOT-FT) IN THE
AFTERNOON.
TIME (CDT) 6 AM 9 AM NOON 3 PM
SKY COVER.......MCLEAR MCLEAR CLEAR MCLEAR
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CHC OF PCPN (%).0 0 0 0
TEMP............47 54 68 73
RH..............89 83 53 44
20 FT WIND DIR..W W W W
20 FT WIND SPD..2 2 4 5
20 FT WIND GUST.5 5 7 7
MIX HGT (FT)....300 600 3700 7100
SDSPL KT-FT/10002 4 38 99
FORECASTER...PICHA
REQUESTED BY...RICK C. JONES
TYPE OF REQUEST...PRESCRIBED
.TAG 2521309.0/TOP
.DELDT 09/05/25
.FORMATTERVERSION 2.0.0
.EMAIL RICK.JONES@BIA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page