597
FNUS74 KOUN 081410
FWSOUN

Spot Forecast for Gregory Loper Rx...BIA Eastern Oklahoma Region
National Weather Service Norman OK
810 AM CST Mon Dec 8 2025

Forecast is based on ignition time of 1000 CST on December 09.
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...

Above-average temperatures are expected on Tuesday, with a gusty
(up to 20 mph) southwest wind during the afternoon. A weak cold
front will move across the fire site early on Wednesday morning,
offering a southwest-to-north/northeast wind shift. Chances for
precipitation are nil.

.TUESDAY...

Sky/weather.........Sunny.
Temperature.........47 at ignition...Max 64.
RH..................71 percent at ignition...Min 40 percent.
Wind (20 ft)........Winds south at 8 mph at ignition...otherwise
                    South winds 7 to 12 mph.
Mixing height.......1100 ft AGL at ignition...otherwise 2500 ft
                    AGL.
Transport winds.....Southwest 18 to 24 mph.
Smoke dispersal.....Fair to good (17800-52500 knot-ft).

TIME (CST)      10 AM  NOON   2 PM   4 PM
Sky (%).........7      2      2      2
Weather cov.....
Weather type....NONE   NONE   NONE   NONE
Tstm cov........
Temp............47     58     62     61
RH..............71     47     43     44
20 FT wind dir..S      S      S      S
20 FT wind spd..7      10     12     10
20 FT wind gust.13     17     20     17
Mix hgt (ft)....1100   1900   2500   1900
Transport wind..SW 18  SW 22  SW 24  SW 22
VRate ktft/1000.18     36     53     37

.TUESDAY NIGHT...

Sky/weather.........Mostly clear.
Temperature.........Min 40.
RH..................Max 85 percent.
Wind (20 ft)........South winds 5 to 7 mph shifting to the west
                    around 5 mph early in the morning.
Mixing height.......400 ft AGL.
Transport winds.....Southwest 12 to 17 mph shifting to the west
                    around 10 mph early in the morning.
Smoke dispersal.....Poor (3800-8000 knot-ft).

TIME (CST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........3      10     12     10     13     15
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............56     52     49     47     44     42
RH..............53     61     68     71     76     82
20 FT wind dir..S      S      S      S      SW     SW
20 FT wind spd..7      6      6      6      5      5
20 FT wind gust.13     10     10     9      7      7
Mix hgt (ft)....600    400    500    500    500    400
Transport wind..S 16   S 16   S 17   S 16   SW 15  SW 12
VRate ktft/1000.8      6      7      7      6      4

.WEDNESDAY...

Sky/weather.........Sunny.
Temperature.........Max 63.
RH..................Min 32 percent.
Wind (20 ft)........Northwest winds around 5 mph shifting to the
                    north 6 to 8 mph in the late morning and
                    afternoon, then becoming light late in the
                    afternoon.
Mixing height.......3200 ft AGL.
Transport winds.....West 9 to 10 mph shifting to the north 12 to 20
                    mph early in the morning.
Smoke dispersal.....Poor to good (3800-53600 knot-ft).

TIME (CST)      6 AM      9 AM      NOON      3 PM
Sky (%).........18        18        12        9
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Temp............40        49        60        62
RH..............85        66        39        32
20 FT wind dir..NW        N         N         N
20 FT wind spd..5         6         8         6
20 FT wind gust.7         9         14        10
Mix hgt (ft)....500       1100      2700      2900
Transport wind..W 9       N 14      N 20      N 18
VRate ktft/1000.4         13        46        47

$$
Forecaster...UNGAR
Requested by...Josh Williams
Type of request...PRESCRIBED
.TAG 2527167.0/OUN
.DELDT 12/08/25
.FormatterVersion 2.0.0
.EMAIL joshuad.williams@bia.gov