Severe thunderstorms developed along and south of a boundary that was located just south of the Red River, west towards Lubbock, TX. Much of the thunderstorm activity remained over northern Texas, with high level clouds moving over southern Oklahoma.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 episode as NWS OUN wrote it up.
Severe thunderstorms developed along and south of a boundary that was located just south of the Red River, west towards Lubbock, TX. Much of the thunderstorm activity remained over northern Texas, with high level clouds moving over southern Oklahoma. Very strong winds at the edge of these clouds were reported over several locations as the thunderstorms moved east. Wind gusts were measured as high as 65 mph in Tillman county, and 60 mph in Garvin county.
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 Norman, OK wrote its last area forecast discussion before the first event at Jun 13, 5:30 PM CST, 2 hours 55 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 630 PM CDT SAT JUN 13 2009 .AVIATION...TSTMS MOVING OUT OF WEST TX BEGINNING TO APPROACH SWRN TAF SITES. BASED ON CURRENT TRENDS WILL TIME TSTMS IN TAF INTO HBR/LAW/SPS EARLY THIS EVENING. LESS CONFIDENT IN TIMING AT MORE NLY SITES AS ACTIVITY WILL LIKELY DEVELOP LATER TONIGHT. WILL ALSO TREND WITH SOME LOWER CIGS LATE TONIGHT/EARLY SUNDAY...ESP TO THE NORTH OF THE SURFACE BOUNDARY. && .PREV DISCUSSION... /ISSUED 257 PM CDT SAT JUN 13 2009/ .DISCUSSION... SPECIAL 18Z SOUNDINGS FROM OUN... FWD... AND AMA ALL INDICATING A DECENT CAP THIS AFTERNOON WHICH HAS BEEN SUPPRESSING DEEP CONVECTION THUS FAR. MEANWHILE... A BOUNDARY CONTINUES TO LINGER IN THE RED RIVER VALLEY WHICH COULD HELP MAINTAIN/FOCUS CONVECTION THAT MIGHT DEVELOP/MOVE INTO THE REGION LATE THIS AFTERNOON AND EVENING. INSTABILITIES ARE AGAIN VERY HIGH WITH MLCAPES RUNNING 4000-5000 J/KG OVER THE SOUTHERN HALF OF OKLAHOMA INTO NORTH TEXAS WHILE DEEP LAYER SHEAR REMAINS MODERATE OVER THE REGION. SEVERAL QUESTIONS REMAIN CONCERNING THE DETAILS OF T-STORM DEVELOPMENT LATE THIS AFTERNOON AND OVERNIGHT. ATTM... BELIEVE WE WILL SEE STORMS INITIATE OVER THE TEXAS SOUTH PLAINS. SATELLITE CURRENTLY INDICATES TCU DEVELOPING OVER THE CAPROCK NEAR LUBBOCK. MODELS ARE IN A REASONABLE AGREEMENT... INCLUDING SEVERAL RECENT LOCAL WRF MODEL RUNS... IN FORMING STORMS AND THEN GROWING THEM UPSCALE INTO AN MCS THAT MOVES ACROSS PARTS OF WESTERN NORTH TEXAS AND SOUTHERN OKLAHOMA. MEANWHILE... WE COULD ALSO SEE SECOND/THIRD MCSS DEVELOP OVER THE TX/OK PANHANDLE INTO SE CO... WHICH COULD EVENTUALLY AFFECT PARTS WESTERN AND CENTRAL OKLAHOMA. BELIEVE THE TX/OK PANHANDLE ACTIVITY WOULD LIKELY ENCOUNTER THE MOST FAVORABLE INSTABILITIES OVER CENTRAL AND SOUTHWEST OKLAHOMA. A WEAK FRONT/BOUNDARY THAT HAS PUSHED INTO NORTHERN OKLAHOMA HAS DRIED OUT THE LOWER LEVELS AND REDUCED INSTABILITIES IN THAT AREA. AFTER TONIGHT... WE WILL MAINTAIN A CHANCE FOR STORMS AGAIN ON MONDAY BUT SHOULD SEE DECREASING CHANCES AS THE WEEK PROGRESSES. ALTHOUGH A COUPLE WEAK FRONTS ARE EXPECTED TO APPROACH THE AREA BY THE MIDDLE OF THE WEEK... WARM TEMPERATURES ALOFT ASSOCIATED WITH AN UPPER LEVEL RIDGE BUILDING OVER THE AREA... SHOULD SUPPRESS ANY SIGNIFICANT T-STORM CHANCES. HOWEVER... A FEW STORMS COULD DEVELOP LATER IN THE WEEK OVER NORTH CENTRAL OKLAHOMA AS THE UPPER RIDGE APPEARS TO BE WEAKENED BY A SHORT WAVE MOVING THROUGH THE CENTRAL PLAINS WHILE A WEAK COLD FRONT SLIPS INTO THE AREA. && .PRELIMINARY POINT TEMPS/POPS... OKLAHOMA CITY OK 70 89 71 93 / 60 30 40 10 HOBART OK 71 94 70 97 / 60 20 40 10 WICHITA FALLS TX 73 94 73 98 / 60 20 30 10 GAGE OK 66 90 66 94 / 60 30 30 10 PONCA CITY OK 68 86 69 92 / 50 30 30 20 DURANT OK 75 93 73 92 / 60 20 30 10 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...NONE. TX...NONE. && 26/32
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
830 PM CDT SAT JUN 13 2009
OKZ004>048-050>052-TXZ083>090-141000-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
830 PM CDT SAT JUN 13 2009
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.
.DAY ONE...TONIGHT...
THUNDERSTORM OUTLOOK...
THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT
ACROSS ALL OF WESTERN NORTH TEXAS...AS WELL AS PORTIONS OF WESTERN
AND CENTRAL OKLAHOMA.
LOCATION...
THE MODERATE RISK AREA IS SOUTH AND WEST OF A LINE FROM
CHEYENNE...TO BINGER...TO SULPHUR TO MADILL AND INCLUDES ALL OF
WESTERN NORTH TEXAS. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS
THROUGH TONIGHT ACROSS THE REMAINDER OF
NORTHERN...WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA.
TIMING...
THE MOST LIKELY TIME FOR SEVERE THUNDERSTORMS WILL BE THROUGH 4 AM.
IMPACTS...
SOME DAMAGE TO ROOFTOPS... AUTOMOBILES... AND TENDER VEGETATION FROM
LARGE HAIL TO THE SIZE OF BASEBALLS.
DAMAGING WIND GUSTS TO 70 MPH.
ISOLATED TORNADOES.
RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE
RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS UNTIL EARLY
SUNDAY MORNING.
DISCUSSION...
STRONG TO SEVERE THUNDERSTORMS WHICH DEVELOPED OVER WEST TEXAS
DURING THE AFTERNOON CONTINUED TO MOVE THROUGH PARTS OF WESTERN
NORTH TEXAS AND SOUTHERN OKLAHOMA THIS EVENING. A VERY UNSTABLE
AIRMASS REMAINS IN PLACE AHEAD OF THE THUNDERSTORMS ACROSS NORTH
TEXAS AND MUCH OF OKLAHOMA. STORMS WILL LIKELY CONTINUE TO SPREAD
ACROSS MUCH OF THE REMAINDER OF OKLAHOMA OVERNIGHT AIDED BY A
STRENGTHENING LOW LEVEL JET. THE STORMS WILL LIKELY CONSOLIDATE INTO
ONE OR MORE ORGANIZED CLUSTERS OVERNIGHT WITH THE THREAT FOR
DAMAGING WINDS AND LARGE HAIL...ESPECIALLY ACROSS SOUTHERN OKLAHOMA
AND WESTERN NORTH TEXAS.
PROBABILITY TABLE...
VALID THROUGH 700 AM CDT SUNDAY JUN 14.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...80 PERCENT.
OTHER HAZARDOUS WEATHER...
THUNDERSTORM COMPLEXES THIS EVENING AND OVERNIGHT COULD BRING HEAVY
RAIN...WITH A THREAT OF LOCALIZED FLOODING.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...
THUNDERSTORM OUTLOOK...
A FRONTAL BOUNDARY IS FORECAST TO REMAIN OVER OR NEAR OKLAHOMA AND
NORTH TEXAS THROUGH THE WEEKEND. WITH THE BOUNDARY CLOSE BY...ALONG
WITH PLENTY OF MOISTURE AND SEVERAL SMALL SCALE DISTURBANCES
EMBEDDED IN MODERATE SOUTHWESTERLY FLOW... THUNDERSTORM CHANCES WILL
CONTINUE INTO THE EARLY PART OF NEXT WEEK.
OTHER HAZARDOUS WEATHER...
NONE.
THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM
SUNDAY.
IISPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 635 PM CDT SAT JUN 13 2009 TXZ087-140000- KNOX TX- 635 PM CDT SAT JUN 13 2009 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR KNOX COUNTY. THE LEADING EDGE OF A LARGE COMPLEX OF STRONG TO SEVERE STORMS WAS LOCATED FROM 10 MILES SOUTHWEST OF TRUSCOTT TO 21 MILES SOUTHWEST OF KNOX CITY AT 633 PM CDT...MOVING EAST-SOUTHEAST AT 20 MPH. ALTHOUGH THE MOST SEVERE PORTION OF THE STORM WILL PASS TO THE SOUTHWEST OF KNOX COUNTY... STRONG WINDS UP TO 50 TO 55 MPH AND FREQUENT LIGHTNING CAN BE EXPECTED ACROSS KNOX COUNTY. PEOPLE IN KNOX COUNTY SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER CONDITIONS. ..SPEG.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 701 PM CDT SAT JUN 13 2009 TXZ087-140030- KNOX TX- 701 PM CDT SAT JUN 13 2009 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR KNOX COUNTY. THE LEADING EDGE OF A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM 3 MILES NORTHWEST OF TRUSCOTT TO 3 MILES WEST OF KNOX CITY AT 700 PM CDT...MOVING EAST-SOUTHEAST AT 20 MPH. VERY FREQUENT LIGHTNING CAN BE EXPECTED WITH THIS STORM. WINDS UP TO 55 MPH AND HAIL UP TO ONE-HALF INCH IN DIAMETER WILL BE POSSIBLE. PEOPLE IN KNOX COUNTY SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER CONDITIONS. ..SPEG.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 733 PM CDT SAT JUN 13 2009 TXZ087-088-140100- KNOX TX-BAYLOR TX- 733 PM CDT SAT JUN 13 2009 ...SIGNIFICANT WEATHER ADVISORY... THIS SIGNIFICANT WEATHER ADVISORY IS FOR BAYLOR AND KNOX COUNTIES. THE LEADING EDGE OF A LARGE COMPLEX OF STRONG THUNDERSTORMS WAS LOCATED FROM 10 MILES NORTH OF VERA TO 4 MILES SOUTHEAST OF MUNDAY AT 733 PM CDT...MOVING EAST AT 25 MPH. VERY FREQUENT LIGHTNING... WINDS OF 55 MPH ARE POSSIBLE. THESE STORMS WILL ALSO PRODUCE VERY FREQUENT LIGHTNING. PEOPLE IN BAYLOR AND KNOX COUNTIES SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR WARNINGS AND REMAIN ALERT FOR THREATENING WEATHER CONDITIONS. ..SPEG.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
802 PM CDT SAT JUN 13 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0750 PM TSTM WND GST MUNDAY 33.45N 99.62W
06/13/2009 E60 MPH KNOX TX PUBLIC
&&
DEWPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
806 PM CDT SAT JUN 13 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0750 PM TSTM WND GST 4 E VERA 33.63N 99.50W
06/13/2009 E70 MPH KNOX TX NWS EMPLOYEE
&&
DEWPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
842 PM CDT SAT JUN 13 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0745 PM TSTM WND GST 6 SSE BOMARTON 33.41N 99.40W
06/13/2009 M63 MPH BAYLOR TX OTHER FEDERAL
MILLER CREEK RESV RAWS STATION. TIME ESTIMATED
&&
DEWThe national radar mosaic for the moment the first event began.
2 high wind. Local standard time, as filed.
A wind gust of 58 mph was also measured at 2125 cdt, three miles west of Grandfield.
Two wind gusts of 60 mph were measured at 0150 and 0213 cdt, two miles south of Pauls Valley.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2009Every state in 2009This day in weather historyWarnings in Oklahoma, June 2009
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: 185147, 185150.