418
FNUS74 KOUN 231329
FWSOUN
SPOT FORECAST FOR COACHMAN RX...BIA EASTERN OKLAHOMA REGION
NATIONAL WEATHER SERVICE NORMAN OK
829 AM CDT THU APR 23 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE AT (405) 325-3816 IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
EXPECTING A NORTH WIND SHIFT AROUND IGNITION TIME EITHER WITHIN
AN HOUR BEFORE OR AFTER IGNITION TIME AS A COLD FRONT WILL BE
COMING THROUGH. SURFACE WINDS WILL VEER NORTHEAST INTO THE
AFTERNOON AROUND 5-10 MPH. RH VALUES WILL LIKELY BE IN THE 70S
PERCENT AT IGNITION TIME WITH A MINIMUM RH AROUND 50% BY LATE
AFTERNOON BEFORE RECOVERY. TEMPERATURES AROUND IGNITION TIME WILL
BE IN THE LOWER 70S WITH AN AFTERNOON HIGH IN THE LOWER 80S. SKIES
WILL BE MOSTLY CLOUDY AT IGNITION TIME AND THERE IS A 20% CHANCE
FOR SHOWERS & THUNDERSTORMS AT THE BURN SITE BETWEEN IGNITION TIME
INTO THE AFTERNOON HOURS WHICH COULD ALSO PRODUCE GUSTY VARIABLE
WINDS FROM ANY STORM OUTFLOW.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY. CHANCE OF SHOWERS LATE IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE DAY. SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON.
MAX TEMPERATURE.....AROUND 78.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........NORTH WINDS 6 TO 8 MPH SHIFTING TO THE
NORTHEAST 7 TO 8 MPH LATE IN THE AFTERNOON.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS.
MIXING HEIGHT.......4300 FT AGL.
TRANSPORT WINDS.....NORTH 14 TO 17 MPH.
SMOKE DISPERSAL.....FAIR TO EXCELLENT (20600-64300 KNOT-FT).
TIME (CDT) 10 AM NOON 2 PM 4 PM
SKY (%).........45 42 36 27
WEATHER COV.....CHANCE CHANCE S CHC S CHC
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........S CHC S CHC S CHC S CHC
TEMP............71 73 76 78
RH..............81 71 60 52
20 FT WIND DIR..NW N N NE
20 FT WIND SPD..6 7 8 8
20 FT WIND GUST.10 13 14 14
MIX HGT (FT)....1600 2700 3900 4300
TRANSPORT WIND..N 15 N 15 N 15 N 17
VRATE KTFT/1000.21 36 51 64
FRIDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLEAR IN THE
LATE EVENING AND OVERNIGHT THEN BECOMING PARTLY
CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....AROUND 56.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 7 MPH. GUSTY AND ERRATIC
WINDS EXPECTED NEAR THUNDERSTORMS IN THE
EVENING.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTHEAST 9 TO 17 MPH SHIFTING TO THE EAST
AROUND 13 MPH AFTER 3 AM.
SMOKE DISPERSAL.....POOR TO GOOD (3200-37800 KNOT-FT).
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........28 23 13 16 19 23
WEATHER COV.....S CHC S CHC S CHC S CHC
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR NONE NONE
TSTM COV........S CHC S CHC S CHC S CHC
TEMP............76 71 64 61 59 57
RH..............54 64 81 87 93 96
20 FT WIND DIR..NE NE NE NE NE E
20 FT WIND SPD..7 6 6 5 5 5
20 FT WIND GUST.13 10 9 7 7 7
MIX HGT (FT)....2500 1000 500 400 500 500
TRANSPORT WIND..NE 17 NE 16 NE 13 NE 9 NE 10 E 13
VRATE KTFT/1000.38 14 5 3 4 5
FORECASTER...PIKE
REQUESTED BY...JOSH WILLIAMS
TYPE OF REQUEST...PRESCRIBED
.TAG 2611471.0/OUN
.DELDT 04/23/26
.FORMATTERVERSION 2.0.0
.EMAIL RYAN.MORRISON@BIA.GOV,JOSHUAD.WILLIAMS@BIA.GOV
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