A stalled front across far southwest Oklahoma, combined with strong northwesterly flow aloft and moderate instability led to the development of supercell thunderstorms during the late afternoon. Storms eventually grew into multicells with damaging winds and marginally severe hail.
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 stalled front across far southwest Oklahoma, combined with strong northwesterly flow aloft and moderate instability led to the development of supercell thunderstorms during the late afternoon. Storms eventually grew into multicells with damaging winds and marginally severe hail.
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 1, 1:40 PM CST, 5 hours 37 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 240 PM CDT FRI JUN 1 2012 .DISCUSSION... UPPER LEVEL NORTHWEST FLOW WILL PREVAIL ACROSS THE SOUTHERN PLAINS AS A SFC HIGH SLIPS EASTWARD INTO EASTERN OK AND A WARM FRONT BEGINS TO LIFT NORTHEASTWARD OVER THE TX/OK PANHANDLES AND FAR WESTERN OK. SCT EARLY DAY CONVECTION WILL PERSIST FOR THE NEXT HOUR OR TWO AS IT SHIFTS EASTWARD AND MOVES INTO THE STABLE AIRMASS OVER ERN OK. THIS COMBINED WITH WIDESPREAD CLOUD COVER HAS LIMITED HIGH TEMPS TODAY. EXCEPTION WILL BE OVER WESTERN OKLAHOMA AND WESTERN NORTH TEXAS WHERE QUASI- STATIONARY BOUNDARY WILL MOVE EASTWARD AS A WARM FRONT...YIELDING CLEARER SKIES AND WARMING TEMPS. THIS WILL OCCUR AS SFC LOW CONTINUES TO DEEPEN ACROSS SE CO/NE NM REGION THROUGH THIS EVENING. LOW LVL MOISTURE WILL RETURN INTO THE TX/OK PANHANDLES...CREATING A NARROW WARM SECTOR AND MODEST INSTABILITY. WITH APPRECIABLE UPPER LEVEL NORTHWEST FLOW...ADEQUATE SHEAR WILL EXIST FOR A FEW SEVERE STORMS OVER THIS REGION. SCT STORMS MAY EVENTUALLY MOVE SOUTHEASTWARD AS ONE OR MORE CLUSTERS OF SHOWER/STORM ACTIVITY. GIVEN THIS SCENARIO...CONFIDENCE IS HIGH THAT PRECIP WILL AFFECT MUCH OF WESTERN OKLAHOMA AND WESTERN NORTH TEXAS THIS EVENING AND OVERNIGHT AS REMNANT STORMS MOVE SEWD ALONG AND ACROSS THE WARM FRONT AND HAVE INCREASED POPS TO LIKELY ACROSS THIS REGION. STILL CANNOT RULE OUT A SEVERE STORM OR TWO WITH MAINLY A LARGE HAIL AND WIND THREAT THIS EVENING OVER WESTERN PORTIONS OF THE FA. THE LARGE SCALE PATTERN WILL REMAIN MOSTLY UNCHANGED THROUGH THE PERIOD WITH WEAK UPPER DISTURBANCES MOVING THROUGH THE UPPER FLOW. THIS WILL FAVOR LATE AFTERNOON STORM COMPLEXES ACROSS THE HIGHER TERRAIN OF CO/NM AND THE TX/OK PANHANDLES SHIFTING SOUTH AND EAST AS THEY TAP INTO THE UPPER LEVEL NORTHWESTERLIES. DESPITE GENERAL UNCERTAINTIES AMONG MODELS WRT CONVECTIVE COVERAGE...PLACEMENT OF A NEARLY STATIONARY FRONTAL BOUNDARY AND ADEQUATE LOW LVL MOISTURE LENDS ENOUGH CONFIDENCE IN DAILY RAINFALL EPISODES TO WARRANT 30 TO 40 PERCENT POPS THROUGH THE WEEKEND. DAYTIME TEMPS WILL HINGE LARGELY ON THE POSITIONING OF THE FRONTAL BOUNDARY...BUT SHOULD GENERALLY REMAIN AT OR JUST ABOVE CLIMO FOR EARLY JUNE. AREAS NEARER CLOUDINESS AND SHOWER ACTIVITY WILL CERTAINLY BE COOLER. BY MONDAY...MODELS DEPICT A BUILDING RIDGE INTO THE SOUTHWEST. A SHORTWAVE TROUGH WILL PULL A COLD FRONT SOUTH THROUGH OKLAHOMA AND WESTERN NORTH TEXAS THROUGH TUESDAY. WITH GENERALLY WEAK UPPER FLOW...SEVERE WEATHER CHANCES APPEAR LOW. AS THE FRONTAL BOUNDARY STALLS ACROSS THE REGION...RAIN CHANCES WILL CONTINUE AND LOW END POPS WILL REMAIN IN THE FORECAST THROUGH THE EXTENDED PERIOD. && .PRELIMINARY POINT TEMPS/POPS... OKLAHOMA CITY OK 60 87 70 91 / 40 20 40 20 HOBART OK 62 89 67 93 / 60 30 40 20 WICHITA FALLS TX 65 91 71 95 / 40 30 20 10 GAGE OK 58 87 65 96 / 50 20 40 20 PONCA CITY OK 57 82 69 87 / 40 10 40 30 DURANT OK 60 87 69 90 / 30 20 20 10 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...NONE. TX...NONE. && 26/84
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1156 AM CDT FRI JUN 1 2012
OKZ004>048-050>052-TXZ083>090-021200-
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-
1156 AM CDT FRI JUN 1 2012
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.
.DAY ONE...TODAY AND TONIGHT...
THUNDERSTORM OUTLOOK...
A FEW STRONG THUNDERSTORMS MAY OCCUR THIS EVENING...BUT ORGANIZED
SEVERE WEATHER IS NOT ANTICIPATED THROUGH TONIGHT.
DISCUSSION...
SHOWERS AND ISOLATED THUNDERSTORMS WILL SPREAD SOUTHEAST ACROSS
PORTIONS OF NORTH CENTRAL AND CENTRAL OKLAHOMA DURING THE EARLY TO
MID AFTERNOON HOURS. THE CHANCE FOR STRONG TO SEVERE THUNDERSTORMS
IS VERY LOW.
BY LATE THIS AFTERNOON....SCATTERED SHOWERS AND THUNDERSTORMS ARE
EXPECTED TO FORM ACROSS THE TEXAS PANHANDLE WITHIN BETTER MOISTURE
AND HEATING. A FEW STRONG TO MARGINALLY SEVERE STORMS MAY
AFFECT PART OF WESTERN OKLAHOMA AND WESTERN NORTH TEXAS LATE THIS
AFTERNOON THROUGH MID EVENING. ADDITIONAL THUNDERSTORMS MAY FORM
DURING THE LATE EVENING AND OVERNIGHT HOURS AS A LOW LEVEL JET
DEVELOPS. THE BEST CHANCES FOR STORMS OVERNIGHT WILL BE ACROSS THE
NORTHERN HALF OF OKLAHOMA. ELEVATED INSTABILITY WILL BE WEAK BUT A
FEW STORMS MAY PRODUCE SMALL HAIL AND GUSTY WINDS.
PROBABILITY TABLE...
VALID THROUGH 700 AM CDT SATURDAY JUN 2.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...20 PERCENT.
OTHER HAZARDOUS WEATHER...
NONE.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...
THUNDERSTORM OUTLOOK...
AN UPPER LEVEL TROUGH WILL MOVE ACROSS THE SOUTHERN AND CENTRAL
PLAINS SATURDAY INTO SATURDAY NIGHT. SCATTERED THUNDERSTORMS
MAY OCCUR WITH THIS SYSTEM...ESPECIALLY ACROSS NORTHERN OKLAHOMA.
THUNDERSTORM CHANCES WILL BE RATHER LOW MONDAY THROUGH THURSDAY
OF NEXT WEEK AND ORGANIZED SEVERE WEATHER APPEARS UNLIKELY.
OTHER HAZARDOUS WEATHER...
NONE.
THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AROUND
5 AM SATURDAY JUNE 2.SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
227 PM CDT FRI JUN 1 2012
OKZ019-025-012000-
LOGAN OK-OKLAHOMA OK-
227 PM CDT FRI JUN 1 2012
...SIGNIFICANT WEATHER ADVISORY FOR LOGAN AND NORTHEASTERN
OKLAHOMA COUNTIES UNTIL 300 PM CDT...
AT 224 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR GUTHRIE...
MOVING SOUTHEAST AT 45 MPH.
HAZARDS INCLUDE...
HAIL UP TO ONE-HALF INCH DIAMETER...
WIND GUSTS TO 40 MPH...
LOCATIONS IMPACTED INCLUDE...
GUTHRIE...LUTHER...ARCADIA...MERIDIAN AND SEWARD.
SEVERE WEATHER IS NOT EXPECTED AND NO WARNINGS ARE ANTICIPATED AT
THIS TIME.
LAT...LON 3585 9715 3555 9714 3569 9742 3568 9744
3570 9744 3576 9757 3592 9747
TIME...MOT...LOC 1924Z 296DEG 40KT 3582 9747
30SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
537 PM CDT FRI JUN 1 2012
OKZ004-012300-
HARPER OK-
537 PM CDT FRI JUN 1 2012
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN HARPER COUNTY
UNTIL 600 PM CDT...
AT 533 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING
QUARTER SIZE HAIL WAS LOCATED 15 MILES NORTHWEST OF ROSSTON...MOVING
EAST AT 35 MPH. THIS STORM WILL MOVE INTO NORTHERN PARTS OF HARPER
COUNTY AROUND 6 PM. IF THIS STORM DOES NOT WEAKEN....A SEVERE
THUNDERSTORM WARNING WILL LIKELY BE ISSUED FOR HARPER COUNTY.
HARPER COUNTY.
LAT...LON 3700 9981 3696 9980 3684 9980 3686 9999
3687 10000 3700 10000
TIME...MOT...LOC 2233Z 267DEG 32KT 3698 10018SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
554 PM CDT FRI JUN 1 2012
OKZ004-012345-
HARPER OK-
554 PM CDT FRI JUN 1 2012
...SIGNIFICANT WEATHER ADVISORY FOR HARPER COUNTY UNTIL 645 PM CDT...
AT 552 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR GATE...
MOVING EAST AT 40 MPH.
HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...
LOCATIONS IMPACTED INCLUDE...
BUFFALO...ROSSTON AND SELMAN.
LAT...LON 3694 9942 3689 9938 3672 9932 3674 10000
3698 10001 3700 9945
TIME...MOT...LOC 2252Z 272DEG 34KT 3688 9997SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
659 PM CDT FRI JUN 1 2012
OKZ021-033-034-020045-
HARMON OK-GREER OK-BECKHAM OK-
659 PM CDT FRI JUN 1 2012
...SIGNIFICANT WEATHER ADVISORY FOR HARMON...WEST CENTRAL GREER
AND SOUTHWESTERN BECKHAM COUNTIES UNTIL 745 PM CDT...
AT 656 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 8 MILES SOUTH OF
TEXOLA...MOVING SOUTHEAST AT 25 MPH.
HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...
LOCATIONS IMPACTED INCLUDE...
VINSON AND MADGE.
LAT...LON 3518 10000 3519 9998 3499 9960 3494 9953
3475 9997 3475 10000
TIME...MOT...LOC 2356Z 309DEG 23KT 3509 10001SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
731 PM CDT FRI JUN 1 2012
OKZ033-020100-
HARMON OK-
731 PM CDT FRI JUN 1 2012
...SIGNIFICANT WEATHER ADVISORY FOR HARMON COUNTY UNTIL 800 PM CDT...
AT 728 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR DODSON...
MOVING EAST AT 30 MPH.
HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...
LOCATIONS IMPACTED INCLUDE...
HOLLIS...GOULD AND MCKNIGHT.
LAT...LON 3481 9998 3481 9974 3479 9975 3458 9977
3462 10000 3482 10000
TIME...MOT...LOC 0028Z 274DEG 24KT 3472 10004SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
752 PM CDT FRI JUN 1 2012
OKZ014-021-020145-
ROGER MILLS OK-BECKHAM OK-
752 PM CDT FRI JUN 1 2012
...SIGNIFICANT WEATHER ADVISORY FOR ROGER MILLS AND NORTHEASTERN
BECKHAM COUNTIES UNTIL 845 PM CDT...
AT 748 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR REYDON...
MOVING EAST AT 40 MPH.
HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...
LOCATIONS IMPACTED INCLUDE...
CHEYENNE...REYDON...DEMPSEY AND BERLIN.
LAT...LON 3571 9998 3559 9943 3535 9953 3552 10000
3565 10000
TIME...MOT...LOC 0048Z 289DEG 35KT 3561 9998The Altus AFB radar (KFDR), 94 km away, was scanning. The volume nearest the first event began at 01:16 UTC.
3 hail, 2 thunderstorm wind. Local standard time, as filed.
Several utility poles were blown down by estimated 70 mph wind gusts.
No damage was reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2012Every state in 2012This day in weather historyWarnings in Oklahoma, June 2012
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: 385843, 385840, 385841, 385842, 385844.