Suppression Forecast
Issued by NWS Oklahoma City, OK

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FNUS74 KOUN 181813
FWSOUN

Spot Forecast for Gregory Loper RxB...BIA - Eastern Oklahoma Region
National Weather Service Norman OK
113 PM CDT Tue Mar 18 2025

Forecast is based on ignition time of 1000 CDT on March 20.
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.

...WIND ADVISORY IN EFFECT UNTIL 7 PM CDT WEDNESDAY...

.DISCUSSION...
Dry conditions expected during the day on Thursday, with RH
beginning at around 40 percent by late morning and dropping to
near 20 percent in the afternoon. Temperatures will not be overly
warm, remaining around 60 in the afternoon. 10 mph winds will
begin out of the northwest in the late morning and shift to
westerly in the afternoon, before weakening to around 5 mph and
shifting to southwesterly in the evening. Modest RH recovery to
near 50 percent is expected Thursday night. Friday will see
problematic fire weather with RH again dropping to around 20
percent, but with winds this time out of the southwest at 10-15
mph and 25 mph gusts expected.

.THURSDAY...

Sky/weather.........Sunny.
Max temperature.....Around 63.
Min humidity........21 percent.
Wind (20 ft)........Northwest winds around 6 mph shifting to the
                    west around 5 mph late in the afternoon.
Mixing height.......5900 ft AGL.
Transport winds.....Northwest 10 to 16 mph shifting to the west
                    around 9 mph late in the afternoon.
Smoke dispersal.....Good to excellent (32600-60900 knot-ft).

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........2   2   3   3   3   4   4   7
Weather cov.....
Weather type....
Tstm cov........
Temp............46  50  54  58  60  61  63  62
RH..............42  35  30  26  24  22  21  22
20 FT wind dir..NW  NW  NW  NW  NW  W   W   W
20 FT wind spd..6   6   6   6   6   6   6   5
20 FT wind gust.9   9   9   9   9   9   9   7
Mix hgt (kft)...2.4 3.2 4.1 4.8 5.5 5.9 5.6 4.1
Transp wind dir.N   N   NW  NW  NW  NW  W   W
Transp wind spd.16  16  15  14  13  12  10  9
VRate ktft/1000.33  45  54  58  61  59  50  33

.THURSDAY NIGHT...

Sky/weather.........Mostly clear.
Min temperature.....Around 42.
Max humidity........51 percent.
Wind (20 ft)........Light winds becoming south 5 to 9 mph in the
                    late evening and overnight.
Mixing height.......100 ft AGL.
Transport winds.....South 8 to 17 mph increasing to around 18 mph
                    after 3 am.
Smoke dispersal.....Poor to fair (600-14700 knot-ft).

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........9   12  13  13  14  17  19  22  22  22  22  26
Weather cov.....
Weather type....
Tstm cov........
Temp............62  61  57  53  49  48  46  45  44  44  43  43
RH..............23  24  28  33  39  40  42  43  44  45  47  48
20 FT wind dir..S   S   S   S   S   S   S   S   S   S   S   S
20 FT wind spd..3   3   3   5   6   6   6   7   8   8   9   9
20 FT wind gust.6   6   6   7   9   10  10  13  14  14  16  16
Mix hgt (kft)...2.1 0.5 0.1 0.2 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.8   8   9   12  14  15  16  17  17  18  18  18
VRate ktft/1000.15  3   1   2   6   6   7   8   8   8   8   7

.FRIDAY...

Sky/weather.........Mostly sunny then becoming sunny.
Max temperature.....Around 72.
Min humidity........25 percent.
Wind (20 ft)........South winds 9 to 17 mph shifting to the west
                    around 13 mph late in the afternoon.
Mixing height.......9300 ft AGL.
Transport winds.....South 18 to 24 mph increasing to southwest 28
                    to 37 mph in the late morning and early
                    afternoon, then shifting to the west 24 to 28
                    mph late in the afternoon.
Smoke dispersal.....Poor to excellent (6800-90100 knot-ft)
                    increasing to excellent (132300-224900 knot-ft)
                    early in the afternoon, then increasing to
                    excellent (223000-249500 knot-ft) late in the
                    afternoon decreasing to excellent (145500
                    knot-ft) late in the afternoon.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........31  35  32  29  26  24  22  20  17  14  11  10
Weather cov.....
Weather type....
Tstm cov........
Temp............42  42  45  49  52  57  61  66  68  69  71  70
RH..............49  51  49  48  46  41  37  33  31  29  28  27
20 FT wind dir..S   S   S   S   S   S   S   S   SW  SW  SW  W
20 FT wind spd..9   9   10  13  15  16  17  17  17  16  15  13
20 FT wind gust.16  16  17  21  24  26  30  30  30  26  24  21
Mix hgt (kft)...0.4 0.6 1.1 1.7 2.5 3.3 4.3 5.3 7.3 8.9 9.3 6.9
Transp wind dir.S   S   S   S   S   S   SW  SW  SW  SW  W   W
Transp wind spd.18  20  22  24  28  31  36  37  36  32  28  24
VRate ktft/1000.7   10  20  36  61  90  132 171 225 250 223 146

$$
Forecaster...MEISTER
Requested by...Josh Williams
Type of request...PRESCRIBED
.TAG 2506941.0/OUN
.DELDT 03/18/25
.FormatterVersion 2.0.0
.EMAIL joshuad.williams@bia.gov,jacob.wisehart@bia.gov,andrew.carr@bia.gov