130
FNUS74 KTSA 212212
FWSTSA

Spot Forecast for Logan Springs RX...The Nature Conservancy
National Weather Service Tulsa OK
512 PM CDT Wed Oct 21 2026

Forecast is based on ignition time of 0000 CDT on October 22.
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...
Humidity will recover well tonight with low level inversions
developing, then lifting by ignition time. Warm and dry
conditions will continue Thursday with light winds. Cloud cover
should be less than Wednesday.

.REST OF TONIGHT...

Sky/weather.........Clear (0-10 percent).
Min temperature.....Around 49.
Max humidity........83 percent.
Dewpoint............44.
Wind (20 ft)........Light winds.
Mixing height.......400 ft AGL.
Transport winds.....Southeast 5 to 6 mph.
Smoke dispersal.....Poor (1967 knot-ft).
Stability class.....6.
1700FT Avg MIX T(F).72.

TIME (CDT)      MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........3   5   4   3   5   4
Weather cov.....
Weather type....
Tstm cov........
Temp............55  54  53  52  51  50
Dewpoint........45  45  44  44  44  44
RH..............69  71  71  74  77  80
20 FT wind dir..N   N   N   N   N   N
20 FT wind spd..0   0   0   0   0   0
20 FT wind gust.2   2   1   1   1   1
Mix hgt (kft)...0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.SE  SE  SE  SE  SE  SE
Transp wind spd.6   6   6   6   6   5
Vrate kt-ft/1K..2   2   2   2   2   2
Ventrate Cat....PR  PR  PR  PR  PR  PR
1700FT Mix T(F).73  73  73  73  72  72

.THURSDAY...

Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 79.
Min humidity........31 percent.
Dewpoint............44 increasing to 47 in the late morning and
                    afternoon.
Wind (20 ft)........Light winds.
Mixing height.......4700 ft AGL.
Transport winds.....East 3 to 5 mph shifting to the northeast late
                    in the afternoon.
Smoke dispersal.....Poor (1967 knot-ft) early in the morning
                    increasing to fair (15737 knot-ft) in the
                    afternoon.
Stability class.....4.
1700FT Avg MIX T(F).73.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........6   0   1   1   1   1   3   5   4   5   3   3
Weather cov.....
Weather type....
Tstm cov........
Temp............50  49  50  55  64  70  74  76  77  78  79  77
Dewpoint........44  43  45  46  48  47  46  46  46  46  46  46
RH..............80  80  83  72  56  44  37  34  33  32  31  33
20 FT wind dir..N   N   N   N   N   SE  E   E   E   E   E   E
20 FT wind spd..0   0   0   0   0   2   2   2   2   2   3   3
20 FT wind gust.1   1   1   2   2   4   4   4   4   4   4   4
Mix hgt (kft)...0.4 0.4 0.4 0.3 0.5 1.6 2.9 4.1 4.5 4.7 4.7 3.8
Transp wind dir.SE  SE  SE  SE  SE  E   E   E   E   E   NE  NE
Transp wind spd.5   5   5   5   3   3   3   3   3   3   3   5
Vrate kt-ft/1K..2   9   9   9   9   9   9   16  16  16  16  16
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
1700FT Mix T(F).72  72  72  71  72  72  73  74  75  76  76  76

.THURSDAY NIGHT...

Sky/weather.........Mostly clear (5-15 percent).
Min temperature.....Around 53.
Max humidity........74 percent.
Dewpoint............46.
Wind (20 ft)........Light winds.
Mixing height.......400 ft AGL.
Transport winds.....Northeast 5 to 8 mph shifting to the southeast
                    around 9 mph in the late evening and overnight.
Smoke dispersal.....Fair (15737 knot-ft) early in the evening
                    decreasing to poor (3934 knot-ft) late in the
                    night.
Stability class.....5.
1700FT Avg MIX T(F).73.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........2   1   1   1   3   17  14  17  12  10  23  10
Weather cov.....
Weather type....
Tstm cov........
Temp............75  70  64  62  60  59  57  56  55  55  54  54
Dewpoint........47  48  48  48  48  48  47  47  46  46  45  45
RH..............37  46  56  60  64  67  69  72  72  72  71  71
20 FT wind dir..NE  NE  E   E   E   E   SE  SE  SE  SE  SE  SE
20 FT wind spd..3   3   3   2   1   1   1   1   1   1   1   1
20 FT wind gust.4   4           4   2   2   2   2   2   2   2
Mix hgt (kft)...0.5 0.4 0.4 0.4 0.4 0.5 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.NE  NE  E   E   E   SE  SE  SE  SE  SE  SE  SE
Transp wind spd.5   7   7   8   9   9   9   9   9   9   9   9
Vrate kt-ft/1K..16  4   4   4   4   4   4   4   4   4   4   4
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
1700FT Mix T(F).76  76  76  75  75  75  74  74  73  72  72  71

$$
Forecaster...SULLIVAN
Requested by...Jacob Walters
Type of request...PRESCRIBED
.TAG 2624279.0/TSA
.DELDT 10/21/26
.FormatterVersion 2.0.0
.EMAIL jacob.walters@tnc.org