Thunderstorm Wind, Harper
- When
- June 27, 5:25 PM CST
- Where
- Harper County, 0.89 mi SW of Buffalo
- Measured
- 56 kt (64 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 36.820, -99.640
A large, intense squall line developed during the afternoon in central Kansas and pushed south through the evening hours. Widespread severe wind gusts, some significant, along with some severe hail occurred in north central Oklahoma.
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 episode as NWS OUN wrote it up.
A large, intense squall line developed during the afternoon in central Kansas and pushed south through the evening hours. Widespread severe wind gusts, some significant, along with some severe hail occurred in north central Oklahoma. The convection weakened as it moved into central Oklahoma, but the gust front associated with the storms continued to produce severe wind over parts of the Oklahoma City metro area.
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 27, 2:40 PM CST, 2 hours 45 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 340 PM CDT THU JUN 27 2013 .DISCUSSION... STORMS HAVE BEEN DEVELOPING IN KANSAS THAT ARE EXPECTED TO MAKE A MOVE INTO THE AREA THIS EVENING. INSTABILITY IS VERY HIGH AND WIND SHEAR IS SUFFICIENT TO SUPPORT SEVERE THUNDERSTORMS. THERE WILL BE AN INCREASING FIGHT AGAINST CONVECTIVE INHIBITION AS THE STORMS MOVE SOUTHEAST AND DIURNAL HEATING WANES. SO WILL LIKELY SEE STORMS IN THE AREA THIS EVENING /ALTHOUGH THE AREAL COVERAGE REMAINS UNCERTAIN/. AFTER MIDNIGHT... STORM CHANCES BE CONFINED MOSTLY TO THE NORTHEAST. A COLD FRONT WILL ALSO BE MOVING THROUGH THE AREA OVERNIGHT. THIS WILL BRING COOLER TEMPERATURES TO MUCH OF THE AREA... ALTHOUGH HOT TEMPERATURES WILL STILL PERSIST IN THE SOUTH. DEWPOINTS SHOULD BE LOWERED ENOUGH BEHIND THE FRONT THAT HEAT INDEX VALUES WILL BE 105 OR BELOW EVEN IN AREAS SOUTHWEST WHERE TEMPERATURES MAY STILL BE WELL INTO THE TRIPLE DIGITS. SO WILL LET THE CURRENT HEAT ADVISORY EXPIRE AS PLANNED THIS EVENING. LATER SHIFTS WILL NEED TO REEVALUATE AS WE SEE HOW THE FORECAST OF POST-FRONTAL DEWPOINTS EVOLVE. BEYOND THIS... THE AREA GENERALLY REMAINS UNDERNEATH NORTHWEST FLOW ALOFT WHICH WILL KEEP TEMPERATURES RELATIVELY COOL AND ALSO KEEP AT LEAST SOME STORM CHANCES IN THE FORECAST IN THE EXTENDED PERIODS. && .PRELIMINARY POINT TEMPS/POPS... OKLAHOMA CITY OK 76 96 70 90 / 20 10 10 10 HOBART OK 76 104 72 97 / 10 10 20 10 WICHITA FALLS TX 77 105 74 96 / 10 10 10 10 GAGE OK 71 96 67 90 / 20 10 20 10 PONCA CITY OK 75 96 66 90 / 40 10 0 10 DURANT OK 76 100 72 93 / 10 10 10 0 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR OKZ004>048-050>052. TX...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR TXZ083>090. &&
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
518 PM CDT THU JUN 27 2013
OKZ004>048-050>052-TXZ083>090-281000-
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-
518 PM CDT THU JUN 27 2013
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.
.DAY ONE...TONIGHT...
THUNDERSTORM OUTLOOK...
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT ACROSS
PRIMARILY THE NORTHERN HALF OF OKLAHOMA.
LOCATION...
THE SLIGHT RISK AREA IS NORTH OF A PRAGUE TO EDMOND TO CHEYENNE
LINE.
TIMING...
THE MOST LIKELY TIME FOR SEVERE THUNDERSTORMS WILL BE THROUGH
MIDNIGHT TONIGHT.
HAZARDS...
DAMAGING WINDS IN EXCESS OF 70 MPH...
LARGE HAIL TO SOFTBALLS...
HEAVY RAINFALL OVER ONE INCH...
RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE
RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS THIS EVENING AND
OVERNIGHT.
DISCUSSION...
THUNDERSTORMS THAT DEVELOPED IN PARTS OF CENTRAL AND SOUTHWESTERN KANSAS
THIS AFTERNOON WILL MOVE SOUTH INTO PARTS OF NORTHERN AND POSSIBLY CENTRAL
OKLAHOMA THIS EVENING. VERY STRONG INSTABILITY AND SUFFICIENT WIND SHEAR
WILL SUPPORT SEVERE STORMS CAPABLE OF PRODUCING VERY LARGE HAIL UP TO
THE SIZE OF SOFTBALLS AND WIND GUSTS IN EXCESS OF 70 MPH. LOCALLY HEAVY
RAINFALL WILL ALSO BE POSSIBLE.
THE SEVERE POTENTIAL IS EXPECTED TO DECREASE LATE THIS EVENING BUT
STORMS COULD REMAIN POSSIBLE INTO THE EARLY MORNING HOURS ACROSS PARTS
OF NORTH CENTRAL AND CENTRAL OKLAHOMA.
PROBABILITY TABLE...
VALID THROUGH 700 AM CDT FRIDAY JUN 28.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...90 PERCENT.
OTHER HAZARDOUS WEATHER...
DANGEROUS HEAT CAN BE EXPECTED THROUGH 8 PM THIS EVENING ACROSS
THE ENTIRE AREA. A HEAT ADVISORY IS IN EFFECT. STRENUOUS OUTDOOR
ACTIVITIES SHOULD BE DEFERRED TO THE EVENING HOURS IF POSSIBLE.
IF YOU HAVE TO BE OUTDOORS...DRINK PLENTY OF WATER AND TAKE
FREQUENT BREAKS IN THE SHADE.
FOR ABSOLUTELY NO REASON...SHOULD YOU LEAVE CHILDREN OR PETS
UNATTENDED IN ANY VEHICLE FOR ANY AMOUNT OF TIME.
.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...
THUNDERSTORM OUTLOOK...
THERE ARE CHANCES FOR THUNDERSTORMS ACROSS PARTS OF OKLAHOMA AND
WESTERN NORTH TEXAS NEARLY EACH DAY THROUGH WEDNESDAY.
ORGANIZED SEVERE STORMS ARE NOT LIKELY.
OTHER HAZARDOUS WEATHER...
HIGH TEMPERATURES BETWEEN 92 AND 108 DEGREES WILL OCCUR ACROSS
THE AREA ON FRIDAY. STRENUOUS OUTDOOR ACTIVITIES SHOULD BE
DONE DURING THE MORNING OR EVENING HOURS. IF YOU HAVE TO BE
OUTDOORS...DRINK PLENTY OF WATER AND TAKE FREQUENT BREAKS IN
THE SHADE.
THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED BY 5 AM
FRIDAY MORNING.
MBS/RB/JTK/EMThe Dodge City radar (KDDC), 109 km away, was scanning. The volume nearest the first event began at 23:22 UTC.
28 thunderstorm wind, 1 hail. Local standard time, as filed.
On interstate 35 at the state line. Reported by KWTV.
Extremely low visibilities were reported due to blowing dust.
Trees down and siding blown off houses. Most of town without power.
Reported on I-35.
Enid ASOS recorded a gust to 67 mph at 6:59pm LST. Also recorded 61 mph at 6:52pm LST.
Public estimated wind gust of 60 mph.
Public estimated a gust to 60 mph.
Mesonet station at Red Rock recorded a gust to 66 mph at 7:25pm LST. Also recorded 60 mph at 7:30pm LST.
Blowing dust reduced visibility to 1/8 mile.
Power lines down near Highway 33 and May.
At Simmons Rd. and Midwest.
At NW 104th and Council. Tree damage.
Media estimated gust to 60 mph.
Spotter estimated gust to 60 mph.
Power pole and transformer taken down at Reno and Rockwell.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2013Every state in 2013This day in weather historyWarnings in Oklahoma, June 2013
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: 458418, 458419, 458420, 458421, 458422, 458423, 458424, 458425, 458426, 458427, 458429, 458430, 458431, 458432, 458433, 458434, 458435, 458437, 458438, 458439, 458441, 458442, 458443, 458444, 458445, 458446, 458447, 458448, 458449.