4 thunderstorm wind, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tulsa, OK wrote its last area forecast discussion before the first event at Aug 20, 2:53 PM CST, 9 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 353 PM CDT SUN AUG 20 2006 .DISCUSSION... ONCE AGAIN...COLD FRONT NOT PACKING MUCH PUNCH THIS FAR SOUTH. SOME COOLER AIR ACROSS THE NORTHERN PART OF THE FORECAST AREA BUT THIS HAS MAINLY BEEN DUE TO EXTENSIVE CLOUD COVER THAT LINGERED INTO THE AFTERNOON. THUNDERSTORMS HAVE IGNITED NEAR THE FRONTAL BOUNDARY THIS AFTERNOON AND WILL CONTINUE INTO THE EARLY EVENING HOURS. WILL KEEP POPS GOING OVERNIGHT ALTHOUGH NOT MUCH TO FOCUS ON ONCE THE CURRENT CONVECTION DISSIPATES. BELIEVE MONDAY WILL SEE A BIT LESS CLOUD COVER ACROSS NORTHERN AREAS SO TEMPERATURES SHOULD BE A BIT WARMER THAN TODAY. IN THE SOUTH...READINGS SHOULD BE NEAR OR SLIGHTLY COOLER THAN TODAY. SCATTERED CONVECTION WILL AGAIN DEVELOP DURING THE AFTERNOON...ESPECIALLY NEAR THE FRONTAL BOUNDARY WHICH IS LIKELY TO BE IN THE SAME GENERAL VICINITY AS TODAY. RAIN CHANCES WILL INCREASE A BIT LATE MONDAY NIGHT AND TUESDAY AS A WEAK SHORTWAVE MOVES ACROSS THE AREA. THE ADDED CLOUD COVER WILL KNOCK A FEW DEGREES OFF HIGH TEMPERATURES IF THIS DOES INDEED PAN OUT. THIS IS THE ONE DAY THIS WEEK WHERE WE MAY TAKE A HIT ON TEMPERATURES AS THEY COULD BE QUITE A BIT WARMER OR COOLER THAN FORECAST DEPENDING ON THE EXTENT OF CLOUD COVER AND PRECIPITATION. THE HEAT IS ON AGAIN LATER ON THE WEEK AS THE FRONT WASHES OUT AND SOUTHERLY WINDS RETURN. THIS WILL BRING TRIPLE DIGIT HEAT BACK TO THE AREA BUT IT WILL LIKELY BE A COUPLE DEGREES COOLER THAN WHAT WE HAVE SEEN RECENTLY AS 700 MILLIBAR HEIGHTS WILL BE A BIT LOWER THAN THEY ARE NOW. THE 12Z GFS HAS BACKED AWAY FROM A FRONTAL PASSAGE NEXT WEEKEND WHILE THE ECMWF HAS TAKEN ITS PLACE IN BRINGING A FRONT THROUGH. FOR NOW WILL ANTICIPATE NO FRONTAL PASSAGE AND KEEP THINGS HOT THROUGH NEXT WEEKEND. ISOLATED DIURNAL CONVECTION MAY OCCUR JUST ABOUT ANY DAY BUT IT DOES NOT SEEM TO WARRANT A MENTIONABLE POP AT THIS POINT IN TIME. GUIDANCE TEMPERATURES HAVE BEEN MUCH TOO COOL ALL MONTH...WITH BIASES OVER 5 DEGREES ON MAXIMUMS AT MOST LOCATIONS AND OVER 2 DEGREES ON MINIMUMS. THIS HAS BEEN A LONG TERM BIAS AND GIVEN READINGS TODAY...SEE NO REASON WHY THIS BIAS WILL NOT CONTINUE FOR THE FORESEEABLE FUTURE. THUS HAVE GONE WELL ABOVE ALL GUIDANCE ON TEMPERATURES THROUGHOUT THE FORECAST PERIOD. UKMET MINIMUM TEMPERATURES CONTINUE TO FAR OUTPERFORM ALL OTHER GUIDANCE MINIMUMS AND HAVE STAYED CLOSE TO THESE VALUES. && .PRELIMINARY POINT TEMPS/POPS... TUL 72 96 72 90 / 20 20 30 40 FSM 75 100 75 94 / 30 30 30 40 MLC 75 100 75 94 / 30 30 30 50 BVO 68 95 68 89 / 20 20 30 40 FYV 69 95 69 92 / 20 30 30 30 BYV 68 93 68 92 / 20 30 30 30 MKO 74 99 74 92 / 20 30 30 40 MIO 70 93 70 90 / 20 20 30 30 F10 73 99 73 92 / 20 30 30 50 HHW 76 102 76 96 / 30 30 30 40 && .TSA WATCHES/WARNINGS/ADVISORIES... OK...NONE. AR...NONE. && SHORT TERM FORECASTER ID= 7 LONG TERM FORECASTER ID= 5 PLATE
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 1255 PM CDT SUN AUG 20 2006 ARZ001-002-010-011-019-020-029-OKZ049-053>076-211000- ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK- CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK- LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK- OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK- PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK- WASHINGTON OK-WASHINGTON AR- 100 PM CDT SUN AUG 20 2006 THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...THIS AFTERNOON AND TONIGHT. SEVERE THUNDERSTORM. RISK...LIMITED. AREA...SOUTHEAST OKLAHOMA AND ALL OF NORTHWEST ARKANSAS. ONSET...AFTER 2 PM. DANGEROUS HEAT. RISK...ELEVATED. AREA...WEST CENTRAL ARKANSAS AND SOUTHEAST OKLAHOMA. ONSET...THIS AFTERNOON. FIRE WEATHER DANGER. RISK...LIMITED. AREA...SOUTHEAST OKLAHOMA. ONSET...THIS AFTERNOON...ENDING BY EARLY EVENING. DISCUSSION... SCATTERED THUNDERSTORMS WILL OCCUR THIS AFTERNOON AND EVENING ACROSS SOUTHEAST OKLAHOMA AND PORTIONS OF NORTHWEST ARKANSAS. THUNDERSTORM COVERAGE WILL BE HIGHEST ALONG AND SOUTH OF INTERSTATE 40. INSTABILITY HAS INCREASED COMPARED TO RECENT DAYS...AND THIS WILL SUPPORT AN INCREASED CHANCE OF SEVERE WEATHER. THE PRIMARY IMPACT WILL BE DAMAGING DOWNBURST WINDS OF 60 TO 70 MPH. HOT TEMPERATURES CONTINUE TODAY ACROSS SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS. THESE CONDITIONS RAISE BOTH EXCESSIVE HEAT AND FIRE WEATHER CONCERNS FOR THE AFTERNOON HOURS. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED SHOULD ANY ORGANIZED AREA OF THUNDERSTORM ACTIVITY DEVELOP. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. MONDAY...THUNDERSTORM POTENTIAL. TUESDAY...NO HAZARDS. WEDNESDAY...DANGEROUS HEAT POTENTIAL. THURSDAY...VERY HIGH FIRE WEATHER POTENTIAL...DANGEROUS HEAT POTENTIAL. FRIDAY...DANGEROUS HEAT POTENTIAL. SATURDAY...DANGEROUS HEAT POTENTIAL. EXTENDED DISCUSSION... THUNDERSTORM CHANCES WILL CONTINUE THROUGH THE EARLY PART OF THE UPCOMING WEEK...WITH HOT TEMPERATURES RETURNING BY THE MID TO LATTER HALF OF THE WEEK. THE EXPECTED TEMPERATURES ALONG WITH ANY GUSTY WINDS WILL RAISE FIRE WEATHER CONCERNS. WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL TABULAR AND GRAPHICAL INFORMATION.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
318 PM CDT SUN AUG 20 2006
ARZ020-202045-
FRANKLIN AR-
318 PM CDT SUN AUG 20 2006
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 345 PM CDT
FOR THE FOLLOWING COUNTY:
IN WEST CENTRAL ARKANSAS
FRANKLIN
AT 318 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
CRAVENS...STATIONARY. SOME LOCATIONS THAT WILL BE AFFECTED BY THIS
STORM INCLUDE...PARADISE...TONEY...LONELM...CRAVENS...WATALULA...
JETHRO...FERN AND BARNES.
THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
328 PM CDT SUN AUG 20 2006
OKZ074-202100-
HASKELL OK-
328 PM CDT SUN AUG 20 2006
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 400 PM CDT
FOR THE FOLLOWING COUNTY:
IN SOUTHEAST OKLAHOMA
SOUTHEAST HASKELL
AT 328 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 7 MILES
SOUTH OF MC CURTAIN...MOVING NORTH AT 5 MPH. SOME LOCATIONS THAT WILL
BE AFFECTED BY THIS STORM INCLUDE...MCCURTAIN...LEQUIRE AND MC
CURTAIN.
THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
344 PM CDT SUN AUG 20 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0340 PM HAIL MULBERRY 35.50N 94.05W
08/20/2006 E0.75 INCH CRAWFORD AR EMERGENCY MNGR
&&
GEWPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
345 PM CDT SUN AUG 20 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0340 PM TSTM WND DMG 3 E MULBERRY 35.50N 94.00W
08/20/2006 FRANKLIN AR EMERGENCY MNGR
LARGE TREE LIMBS DOWN. ESTIMATED WIND IN EXCESS OF 50
MPH.
&&
GEWSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
345 PM CDT SUN AUG 20 2006
OKZ075-202115-
LATIMER OK-
345 PM CDT SUN AUG 20 2006
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 415 PM CDT
FOR THE FOLLOWING COUNTY:
IN SOUTHEAST OKLAHOMA
LATIMER
AT 345 PM CDT...DOPPLER RADAR INDICATED A NEARLY STATIONARY STRONG
THUNDERSTORM 6 MILES NORTHEAST OF RED OAK...AND A SECOND NEARLY
STATIONARY STORM NEAR WILBURTON. SOME LOCATIONS THAT WILL BE AFFECTED BY THIS
STORM
INCLUDE...WILBURTON...HIGGINS...BENGAL...DAMON...GOWEN...PANOLA...RED
OAK AND VETERANS COLONY.
THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
348 PM CDT SUN AUG 20 2006
OKZ073-202115-
PITTSBURG OK-
348 PM CDT SUN AUG 20 2006
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 415 PM CDT
FOR THE FOLLOWING COUNTY:
IN SOUTHEAST OKLAHOMA
SOUTHERN PITTSBURG
AT 348 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 7 MILES
EAST OF BLANCO...MOVING EAST AT 5 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...PITTSBURG...BLANCO...SAVANNA...
HARTSHORNE...HAILEYVILLE...DOW...BACHE...ALDERSON AND KREBS.
THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.The Western Arkansas radar (KSRX), 102 km away, was scanning. The volume nearest the first event began at 21:00 UTC.
4 thunderstorm wind. Local standard time, as filed.
Thunderstorm winds estimated at 60 miles an hour blew down power lines. The city of Wilburton was without power.
Thunderstorm winds estimated at 70 miles an hour blew down trees.
Thunderstorm winds estimated at 70 miles an hour blew down four power poles.
Thunderstorm winds estimated at 60 miles an hour blew down large tree limbs.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2006Every state in 2006This day in weather historyWarnings in Oklahoma, August 2006
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5532997, 5532998, 5532999, 5533000.