Suppression Forecast
Issued by NWS Tulsa, OK

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135
FNUS74 KTSA 272017
FWSTSA

Spot Forecast for OK- Blackjack South RX...US Forest Service
National Weather Service Tulsa OK
217 PM CST Thu Feb 27 2025

Forecast is based on ignition time of 1800 CST on February 27.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact NWS Tulsa at (918)838-7838, if you have questions
or concerns with this forecast.

.DISCUSSION...
Above normal temperatures and low relative humidities are ongoing
this afternoon. Only modest recovery is expected overnight, with
maximum relative humidities from 60 to 65 percent tonight. Winds
will shift overnight from a northwesterly direction to a southerly
direction by tomorrow morning. Expect an increase in wind speeds
tomorrow late morning into the afternoon, with continued very warm
temperatures and low relative humidities.

.TONIGHT...

Sky/weather.........Clear (0-10 percent).
Min temperature.....Around 41.
Max humidity........67 percent.
Dewpoint............32.
Wind (20 ft)........Light winds.
Mixing height.......500 ft AGL.
Transport winds.....Northwest 5 to 8 mph shifting to the southwest
                    5 to 7 mph late in the evening.
Smoke dispersal.....Poor (3278 knot-ft).
Stability class.....6.
1700FT Avg MIX T(F).64.

TIME (CST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........2   4   2   3   3   2   1   2   3   5   5   6
Weather cov.....
Weather type....
Tstm cov........
Temp............61  58  53  50  49  48  46  45  44  43  42  42
Dewpoint........33  32  33  33  32  32  32  31  31  31  31  31
RH..............35  37  46  52  52  54  58  58  60  62  65  65
20 FT wind dir..NW  NW  NW  NW  NW  W   W   SW  SW  S   S   S
20 FT wind spd..2   2   2   2   2   2   2   2   2   2   2   2
20 FT wind gust.6   5   4   4   4   4   4   4   4   5   6   6
Mix hgt (kft)...0.7 0.6 0.6 0.6 0.6 0.5 0.6 0.6 0.6 0.6 0.6 0.6
Transp wind dir.N   N   NW  W   W   W   W   W   SW  SW  SW  SW
Transp wind spd.7   8   6   5   5   5   6   7   7   7   7   7
Vrate kt-ft/1K..5   5   5   5   5   5   3   3   3   3   3   3
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
1700FT Mix T(F).65  65  64  64  64  64  64  64  64  64  64  64

.FRIDAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 72.
Min humidity........26 percent.
Dewpoint............32 increasing to 35 in the late morning and
                    afternoon.
Wind (20 ft)........Light winds becoming southwest 5 to 9 mph with
                    gusts to around 18 mph early in the morning.
Mixing height.......4500 ft AGL.
Transport winds.....Southwest 8 to 17 mph shifting to the west 17
                    to 21 mph late in the morning.
Smoke dispersal.....Good (54426 knot-ft) early in the morning
                    increasing to excellent (83934 knot-ft) in the
                    afternoon.
Stability class.....4.
1700FT Avg MIX T(F).68.

TIME (CST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........6   4   0   1   2   3   2   3   3   2   2   3
Weather cov.....
Weather type....
Tstm cov........
Temp............41  43  45  54  59  64  67  69  71  72  71  70
Dewpoint........31  31  32  34  36  35  35  35  35  35  36  36
RH..............67  62  60  47  42  34  30  28  27  26  28  29
20 FT wind dir..S   SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..3   3   4   6   6   8   9   9   9   9   8   6
20 FT wind gust.6   7   10  12  14  17  18  18  18  18  17  14
Mix hgt (kft)...0.5 0.6 0.6 0.8 1.9 3.1 3.5 3.9 4.4 4.5 4.3 2.2
Transp wind dir.SW  SW  SW  SW  W   W   W   W   W   W   W   SW
Transp wind spd.9   8   9   10  17  20  20  20  20  21  21  17
Vrate kt-ft/1K..54  54  54  54  54  54  84  84  84  84  84  84
Ventrate Cat....FR  FR  FR  FR  FR  FR  GD  GD  GD  GD  GD  GD
1700FT Mix T(F).64  64  64  64  65  66  67  69  71  72  72  72

.FRIDAY NIGHT...

Sky/weather.........Clear (0-10 percent).
Min temperature.....Around 42.
Max humidity........76 percent.
Dewpoint............36.
Wind (20 ft)........Southwest winds 5 to 6 mph early in the evening
                    becoming light.
Mixing height.......500 ft AGL.
Transport winds.....West 9 to 13 mph shifting to the north 8 to 9
                    mph overnight.
Smoke dispersal.....Poor (5245 knot-ft).
Stability class.....6.
1700FT Avg MIX T(F).67.

TIME (CST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........3   3   2   2   3   2   1   2   4   5   5   6
Weather cov.....
Weather type....
Tstm cov........
Temp............66  61  58  56  55  53  51  49  48  47  45  43
Dewpoint........37  37  37  37  37  37  36  36  37  37  37  36
RH..............34  41  45  49  51  54  56  61  65  68  73  76
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  W   W   W   NW  N
20 FT wind spd..6   6   5   4   3   3   3   3   2   2   2   2
20 FT wind gust.14  13  11  10  8   7   7   6   6   6   6   6
Mix hgt (kft)...0.8 0.6 0.7 0.6 0.6 0.6 0.6 0.5 0.5 0.6 0.5 0.5
Transp wind dir.W   SW  W   SW  W   W   W   W   NW  N   N   N
Transp wind spd.13  12  12  10  10  10  10  9   9   8   8   8
Vrate kt-ft/1K..9   9   9   9   9   9   5   5   5   5   5   5
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
1700FT Mix T(F).71  71  71  71  71  70  69  68  67  66  65  64

.SATURDAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 67.
Min humidity........29 percent.
Dewpoint............36.
Wind (20 ft)........Light winds becoming north around 5 mph in the
                    afternoon, then becoming light late in the
                    afternoon.
Mixing height.......4500 ft AGL.
Transport winds.....Northeast 8 to 13 mph.
Smoke dispersal.....Fair (28852 knot-ft) early in the morning
                    increasing to good (50491 knot-ft) in the
                    afternoon.
Stability class.....4.
1700FT Avg MIX T(F).64.

TIME (CST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........6   4   3   1   2   2   3   3   4   4   3   3
Weather cov.....
Weather type....
Tstm cov........
Temp............43  45  49  53  57  61  64  66  67  67  66  64
Dewpoint........36  37  37  38  37  36  35  35  34  34  34  35
RH..............76  73  63  57  47  39  34  32  29  29  30  34
20 FT wind dir..N   N   N   N   N   N   N   N   N   N   N   N
20 FT wind spd..2   2   3   3   4   4   5   5   5   5   5   4
20 FT wind gust.6   6   7   8   10  10  10  10  10  10  10  10
Mix hgt (kft)...0.5 0.6 0.9 1.3 2.0 2.8 3.5 4.1 4.5 4.4 3.8 2.7
Transp wind dir.N   NE  NE  NE  NE  NE  N   N   N   N   N   NE
Transp wind spd.8   8   8   8   9   12  13  13  13  12  10  9
Vrate kt-ft/1K..29  29  29  29  29  29  50  50  50  50  50  50
Ventrate Cat....PR  PR  PR  PR  PR  PR  FR  FR  FR  FR  FR  FR
1700FT Mix T(F).63  62  61  61  62  63  64  65  67  67  66  64

$$
Forecaster...K.HATFIELD
Requested by...RXB2
Type of request...PRESCRIBED
.TAG 2504239.0/TSA
.DELDT 02/27/25
.FormatterVersion 2.0.0
.EMAIL matthew.moe@usda.gov