887
FXUS64 KTSA 102341
AFDTSA
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
641 PM CDT THU SEP 10 2026
..NEW AVIATION
KEY MESSAGES
UPDATED AT 1259 PM CDT THU SEP 10 2026
- INCREASING SHOWERS AND THUNDERSTORM TODAY AND TONIGHT ASSOCIATED
WITH A PASSING COLD FRONT.
- BRIEF COOL DOWN IN WAKE OF THE FRONT BUT UNSEASONABLY HOT
TEMPERATURES RETURN OVER THE WEEKEND THROUGH NEXT WEEK.
- THUNDERSTORM CHANCES RETURN SATURDAY HOWEVER CONFIDENCE IS LOW
IN EXACT PLACEMENT AND COVERAGE.
- WHILE LOCALLY HEAVY RAINFALL IS POSSIBLE THROUGH FRIDAY NIGHT,
THE ONGOING DROUGHT CONDITIONS WILL REQUIRE MUCH MORE RAINFALL
FOR IMPROVEMENT. FIRE WEATHER CONCERNS WILL CONTINUE DURING
PERIODS OF STRONGER WINDS.
SHORT TERM
(THROUGH TONIGHT )
ISSUED AT 1259 PM CDT THU SEP 10 2026
COMBINED OUTFLOW / COLD FRONTAL BOUNDARY WILL CONTINUE A STEADY
SOUTHEASTWARD PROGRESS AND CLEAR THE FORECAST AREA BY MID EVENING.
STORMS WILL CONTINUE TO DEVELOP ALONG AND NORTH OF THE BOUNDARY
WITH A FEW STRONG TO SEVERE STORMS LIKELY THROUGH EARLY EVENING
WITH LOCALIZED STRONG WINDS THE PRIMARY HAZARD. A BRIEF LULL IN
CONVECTIVE COVERAGE IS POSSIBLE THIS EVENING, HOWEVER PERSISTENT
MID LEVEL TROUGHING AND INCREASINGLY FAVORABLE UPPER JET DYNAMICS
WILL LIKELY FOSTER ANOTHER PERIOD OF MORE WIDESPREAD CONVECTION
FROM LATE EVENING THROUGH THE EARLY MORNING HOURS. PLACEMENT AND
EVOLUTION OF THIS CONVECTION IS MORE UNCERTAIN, BUT WESTERN AR AND
POSSIBLY FAR SE OK WILL BE WITHIN THE MORE FAVORED CORRIDOR.
PLENTIFUL DEEP LAYER MOISTURE AND GENERALLY SLOWER STORM MOTIONS
WILL ALLOW FOR LOCALLY HEAVY RAINFALL POTENTIAL. WHILE ONGOING DROUGHT
CONDITIONS WILL WELCOME THE RAINFALL, THERE MAY BE BRIEF PERIODS
OF HEAVIER RUNOFF ON HARDENED AND SHALLOWER SOILS.
LONG TERM
(TOMORROW THROUGH THURSDAY)
ISSUED AT 1259 PM CDT THU SEP 10 2026
SHOWERS AND STORMS MAY BE ONGOING INTO THE DAY FRIDAY BEFORE
DISSIPATING OR SPREADING EAST OF THE LOCAL FORECAST AREA.
OTHERWISE, DRY AND SOMEWHAT COOLER WEATHER IS EXPECTED FRIDAY WITH
THE RETURN OF UNSEASONABLY HOT WEATHER BEGINNING SATURDAY. VARIOUS
GUIDANCE MEMBERS SUGGEST MCS DEVELOPMENT ACROSS KS EITHER SATURDAY
OR EARLY SUNDAY AND THESE COMPLEX SPREADING SOUTHEAST TOWARD THE
REGION WITH A WEAKENING TREND INTO THE BUILDING UPPER RIDGE.
CONFIDENCE IS LOW IN THIS SCENARIO AS THE SPREAD IN TIMING AND
LOCATION REMAINS HIGH, HOWEVER THE OVERALL PATTERN DOES SUPPORT
THIS POTENTIAL SO EXPECT NOTABLE ADJUSTMENTS IN FORECAST RAIN
CHANCES ONCE A SCENARIO GAINS AGREEMENT. TEMPS ON SATURDAY WILL BE
LARGELY DEPENDENT ON THE COVERAGE AND DURATION OF ANY SHOWERS AND
STORMS, BUT THE TREND WILL REMAIN FOR HOTTER WEATHER BUILDING
THROUGH THE WEEKEND INTO THE MIDDLE OF NEXT WEEK. HEAT ADVISORIES
APPEAR LIKELY AT SOME POINT DURING THIS PERIOD. THE NEXT POTENTIAL
COLD FRONT AND INCREASING RAIN CHANCES ARRIVES TOWARD THE MIDDLE
TO LATTER PART OF NEXT WEEK.
AVIATION
(00Z TAFS)
ISSUED AT 641 PM CDT THU SEP 10 2026
MAJORITY OF THE THUNDERSTORM ACTIVITY HAS DISSIPATED EARLY THIS
EVENING, BUT SOME LOW CHANCES WILL REMAIN AT THE ARKANSAS
TERMINALS THROUGH TONIGHT. MODEL GUIDANCE SHOWS ANOTHER ROUND OF
SHOWER AND THUNDERSTORMS OVERNIGHT TONIGHT, MAINLY ACROSS FAR
SOUTHEAST OKLAHOMA AND WESTERN ARKANSAS. MAINTAINED PROB30 GROUPS
AT KXNA, KROG, KFYV, AND KFSM FROM MID EVENING THROUGH THE EARLY
MORNING HOURS ON FRIDAY. CLOUDS WILL CLEAR OUT ACROSS PORTIONS OF
NORTHEAST OKLAHOMA TONIGHT. GUIDANCE SUGGESTS LIGHT, PATCHY FOG
MAY DEVELOP NORTH OF US-412, WITH MVFR/IFR CIGS POSSIBLE AT KTUL
AND KRVS, BETWEEN MIDNIGHT AND MID MORNING. ADDITIONAL CIGS MAY
DEVELOP ACROSS SOUTHEAST OKLAHOMA AND NORTHWEST ARKANSAS AROUND
SUNRISE. CIGS LIFT AND VFR IS EXPECTED TO PREVAIL AT ALL TAF SITES
BY LATE MORNING OR MIDDAY.
MEJIA
PRELIMINARY POINT TEMPS/POPS
TUL 68 91 71 94 / 20 10 30 40
FSM 73 92 72 98 / 80 60 20 20
MLC 70 93 72 99 / 50 50 10 20
BVO 62 90 65 93 / 20 10 30 50
FYV 65 89 65 95 / 70 50 20 20
BYV 68 87 68 93 / 70 50 20 20
MKO 67 90 68 95 / 40 30 20 30
MIO 66 89 68 92 / 20 10 20 30
F10 67 92 69 97 / 30 30 20 30
HHW 72 92 72 97 / 50 50 10 20
TSA WATCHES/WARNINGS/ADVISORIES
OK...NONE.
AR...NONE.
SHORT TERM...07
LONG TERM....07
AVIATION...67
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