567
FNUS74 KTSA 101325
FWSTSA
SPOT FORECAST FOR NORTH MAC RX...BIA EASTERN OKLAHOMA REGION
NATIONAL WEATHER SERVICE TULSA OK
825 AM CDT WED SEP 10 2025
FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON SEPTEMBER 11.
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
TEMPERATURES WILL BE IN THE MID 80S AT IGNITION TIME THURSDAY,
CLIMBING INTO THE LOW 90S DURING THE AFTERNOON. WINDS WILL BE OUT
OF THE SOUTH AT 5-10 MPH WITH A FEW HIGHER GUSTS TO 15 MPH
EXPECTED. THERE WILL BE A MIXTURE OF CLOUDS AND SUN. RAIN IS NOT
EXPECTED TO REACH THE SURFACE, BUT THERE COULD BE A FEW VIRGA
SHOWERS WHERE RAIN EVAPORATES BEFORE REACHING THE GROUND (20%
CHANCE). THE MAIN IMPACT IF THIS WERE TO MATERIALIZE WOULD
INCLUDE LOCALLY GUSTY ERRATIC WINDS AND A FEW SPRINKLES. RH WILL
FALL FROM AROUND 50% AT IGNITION TIME TO 35% IN THE AFTERNOON,
RISING TO 80-90% OVERNIGHT.
THURSDAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....AROUND 92.
MIN HUMIDITY........38 PERCENT.
DEWPOINT............63.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH AROUND 5 MPH EARLY
IN THE AFTERNOON, THEN BECOMING LIGHT LATE IN
THE AFTERNOON.
MIXING HEIGHT.......5400 FT AGL.
TRANSPORT WINDS.....SOUTH 6 TO 7 MPH.
SMOKE DISPERSAL.....FAIR (20327 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (31475 KNOT-FT) IN THE
AFTERNOON.
STABILITY CLASS.....3.
1700FT AVG MIX T(F).90.
TIME (CDT) 7AM 8AM 9AM 10A 11A 12P
SKY (%).........6 6 4 3 1 3
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............86 89 91 92 92 91
DEWPOINT........64 64 64 63 63 64
RH..............48 44 41 38 38 41
20 FT WIND DIR..S S S S S S
20 FT WIND SPD..5 5 5 5 4 4
20 FT WIND GUST.7 8 8 8 7 6
MIX HGT (KFT)...3.3 4.3 5.1 5.4 5.1 3.7
TRANSP WIND DIR.SW SW SW S S S
TRANSP WIND SPD.7 7 7 6 6 6
VRATE KT-FT/1K..20 31 31 31 31 31
VENTRATE CAT....PR PR PR PR PR PR
1700FT MIX T(F).88 89 90 91 92 92
THURSDAY NIGHT
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....AROUND 67.
MAX HUMIDITY........90 PERCENT.
DEWPOINT............65.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......0 FT AGL.
TRANSPORT WINDS.....SOUTH 6 TO 10 MPH.
SMOKE DISPERSAL.....GOOD (31475 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (3278 KNOT-FT) LATE IN THE
NIGHT.
STABILITY CLASS.....5.
1700FT AVG MIX T(F).90.
TIME (CDT) 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID
SKY (%).........5 7 6 5 4 4 5 5 4 4 3 3
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............89 86 82 79 76 74 73 72 71 70 69 68
DEWPOINT........65 66 66 66 66 66 65 65 65 64 64 64
RH..............45 51 58 64 71 76 76 79 81 81 84 87
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..3 3 3 3 3 3 3 3 3 3 3 3
20 FT WIND GUST.6 6 6 6 6 6 6 6 6 5 5 5
MIX HGT (KFT)...1.8 0.3 0.1 0.1 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.S S S S S S S S S S S S
TRANSP WIND SPD.6 6 7 8 9 9 9 9 9 10 10 10
VRATE KT-FT/1K..31 3 3 3 3 3 3 4 4 4 4 4
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
1700FT MIX T(F).92 92 92 92 91 91 91 91 90 90 90 89
FRIDAY
SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 93.
MIN HUMIDITY........41 PERCENT.
DEWPOINT............65.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 6 MPH IN THE
LATE MORNING AND AFTERNOON, THEN BECOMING LIGHT
LATE IN THE AFTERNOON.
MIXING HEIGHT.......6400 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 8 TO 10 MPH.
SMOKE DISPERSAL.....POOR (3934 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (51803 KNOT-FT) IN THE
AFTERNOON.
STABILITY CLASS.....4.
1700FT AVG MIX T(F).90.
TIME (CDT) 1AM 2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM 10A 11A 12P
SKY (%).........4 4 4 5 5 5 6 6 8 11 13 14
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............67 68 72 76 81 85 89 91 92 93 93 91
DEWPOINT........64 64 65 65 66 66 67 67 67 66 66 67
RH..............90 87 79 69 60 53 48 45 44 41 41 45
20 FT WIND DIR..S S S S S S S S S S S S
20 FT WIND SPD..3 3 3 4 5 5 6 6 6 5 5 4
20 FT WIND GUST.5 5 6 6 7 8 8 10 8 8 7 6
MIX HGT (KFT)...0.4 0.4 0.4 0.6 1.2 2.6 4.2 5.5 6.3 6.4 5.9 4.6
TRANSP WIND DIR.S S S SW SW SW SW SW SW S S S
TRANSP WIND SPD.9 9 9 10 10 10 9 9 9 8 8 8
VRATE KT-FT/1K..4 35 35 35 35 35 35 52 52 52 52 52
VENTRATE CAT....PR PR PR PR PR PR PR FR FR FR FR FR
1700FT MIX T(F).89 89 88 88 88 89 90 91 92 93 93 93
FORECASTER...HODGES
REQUESTED BY...JOSH WILLIAMS
TYPE OF REQUEST...PRESCRIBED
.TAG 2521709.0/TSA
.DELDT 09/10/25
.FORMATTERVERSION 2.0.0
.EMAIL JOSHUAD.WILLIAMS@BIA.GOV,ANDREW.CARR@BIA.GOV
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