200
FNUS74 KOUN 272049
FWSOUN
SPOT FORECAST FOR HQ BIL PILES...USFWS
NATIONAL WEATHER SERVICE NORMAN OK
349 PM CDT MON APR 27 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON APRIL 28.
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
MILD POSTFRONTAL CONDITIONS EXPECTED FOR THE SALT PLAINS AREA ON
TUESDAY. MORNING TEMPS WILL BE AROUND 50 WITH RHS BEGINNING IN THE
75% RANGE AND LIGHT NORTHEAST WINDS. THAT WIND WILL GRADUALLY SHIFT
TO NORTHERLY DURING THE DAY WITH TEMPERATURES WARMING INTO THE
65-70 RANGE IN THE AFTERNOON (RECENT FORECAST DATA LOOKS A SMIDGE
COOLER THAN THE GRIDDED FORECAST BELOW). THIS WILL ALSO HAVE AN
IMPACT ON MINIMUM RH, WHICH WOULD REMAIN IN THE LOW-TO-MID 40S IF
THE COOLER TREND ENDS UP CORRECT.
TUESDAY
SKY/WEATHER.........PARTLY SUNNY THEN BECOMING SUNNY.
MAX TEMPERATURE.....AROUND 71.
MIN HUMIDITY........36 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 8 TO 10 MPH.
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WINDS.....NORTHEAST 14 TO 21 MPH DECREASING TO AROUND 10
MPH EARLY IN THE AFTERNOON, THEN SHIFTING TO
THE NORTH 12 TO 14 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR TO GOOD (24600-59600 KNOT-FT).
TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM
SKY (%).........56 57 53 30 22 14
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
TEMP............48 51 58 65 68 70
RH..............89 77 60 50 44 39
20 FT WIND DIR..NE NE NE NE N N
20 FT WIND SPD..8 9 10 9 10 10
20 FT WIND GUST.14 16 17 16 17 17
MIX HGT (FT)....1500 2200 2500 3400 4300 5000
TRANSPORT WIND..NE 18 E 21 NE 16 NE 10 N 12 N 14
VRATE KTFT/1000.25 40 36 31 43 60
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR THEN BECOMING PARTLY CLOUDY.
MIN TEMPERATURE.....AROUND 42.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........NORTH WINDS 6 TO 12 MPH.
MIXING HEIGHT.......0 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 15 MPH SHIFTING TO THE NORTHEAST
13 TO 15 MPH IN THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....POOR TO EXCELLENT (0-62400 KNOT-FT).
TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........12 12 7 10 16 24
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
TEMP............71 65 58 53 49 45
RH..............36 45 64 77 86 96
20 FT WIND DIR..N N NE N N N
20 FT WIND SPD..12 9 9 8 7 6
20 FT WIND GUST.20 16 16 14 13 10
MIX HGT (FT)....4800 700 500 500 500 500
TRANSPORT WIND..N 15 NE 15 NE 15 NE 14 N 13 N 13
VRATE KTFT/1000.62 9 7 6 5 5
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........30 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 6 TO 10 MPH.
MIXING HEIGHT.......4800 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 14 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (3300-57400 KNOT-FT).
TIME (CDT) 6 AM 9 AM NOON 3 PM
SKY (%).........37 37 35 37
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
TEMP............43 51 63 70
RH..............96 71 44 34
20 FT WIND DIR..N NE NE NE
20 FT WIND SPD..6 6 8 10
20 FT WIND GUST.9 10 14 17
MIX HGT (FT)....300 2100 4000 4600
TRANSPORT WIND..N 14 NE 14 NE 14 NE 14
VRATE KTFT/1000.3 25 48 56
FORECASTER...MEISTER
REQUESTED BY...GLEN HENSLEY
TYPE OF REQUEST...PRESCRIBED
.TAG 2611861.0/OUN
.DELDT 04/27/26
.FORMATTERVERSION 2.0.0
.EMAIL GLEN_HENSLEY@FWS.GOV
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