Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 512, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Jun 7, 2015, 5:49 PM CDT for Ellis County, Harper County, Oklahoma. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 7, 2015, 5:49 PM CDT (22:49 UTC)
- Expired
- Jun 7, 2015, 6:30 PM CDT
- In force
- 41 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Ellis County, OK, Harper County, OK
The radar
The Dodge City radar (KDDC), 142 km from the middle of the area, began a volume at 22:48 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 10.8 hours before the alert went out and 228 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 7 J/kg
- Mixed-layer CIN
- -310 J/kg
- Mixed-layer LCL
- 1568 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jun 7, 5:45 PM CDT, 4 minutes earlier.
Area forecast discussion, Jun 7, 5:45 PM CDT, 4 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 545 PM CDT SUN JUN 7 2015 .AVIATION... STORMS MAY IMPACT GAG/WWR THIS EVENING BEFORE DISSIPATING. OTHERWISE... A WEAK FRONT WILL MOVE SOUTH OVERNIGHT INTO THE DAY ON MONDAY SHIFTING WINDS FROM SOUTH TO NORTH. SOME MFVR AND PERHAPS IFR CEILINGS MAY OCCUR ACROSS WESTERN/NORTHWEST OK BEHIND THE FRONT LATE TONIGHT/MONDAY MORNING. 30 && .PREV DISCUSSION... /ISSUED 212 PM CDT SUN JUN 7 2015/ .DISCUSSION... A FRONT FROM KANSAS WILL ARRIVE LATER TONIGHT TO NORTHWEST OKLAHOMA. AN UPPER LEVEL WAVE MOVING QUICKLY THROUGH THE CENTRAL PLAINS WILL HELP WITH LIFT AND ASSOCIATED SHOWERS AND THUNDERSTORMS. AS THE UPPER SUPPORT MOVES AWAY TO THE NORTHEAST, THE FRONT WILL SAG SLOWLY SOUTH AND RAIN/THUNDERSTORMS WILL DISSIPATE. HOWEVER, THIS FRONT WILL LIKE SOMEWHERE ACROSS CENTRAL OKLAHOMA MONDAY AND BRING A SMALL CHANCE FOR SHOWERS/THUNDERSTORMS MONDAY AFTERNOON. ANY OUTFLOW WILL PROBABLY PUSH INTO SOUTHERN OKLAHOMA FOR A CHANCE FOR STORMS AGAIN TUESDAY. BEYOND TONIGHT'S SLIGHT RISK FOR WIND AND HAIL, SEVERE RISK IS LOW. WEDNESDAY MAY BRING A TEMPORARY REBUILDING OF THE UPPER RIDGE AND THE LOWEST CHANCE FOR RAIN OF THE WEEK. BY LATE THURSDAY AND FRIDAY SOUTHWEST FLOW ALOFT AND ANOTHER FRONT FROM THE NORTH WILL BRING A GOOD CHANCE FOR RAIN AT VARIOUS TIMES THROUGH THE WEEKEND. && .PRELIMINARY POINT TEMPS/POPS... OKLAHOMA CITY OK 70 89 69 90 / 20 20 10 20 HOBART OK 69 90 69 91 / 20 20 20 20 WICHITA FALLS TX 70 91 70 92 / 10 10 10 20 GAGE OK 64 87 64 89 / 60 10 20 30 PONCA CITY OK 70 89 67 92 / 40 20 10 10 DURANT OK 71 91 71 92 / 0 10 10 10 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...NONE. TX...NONE. && 84/09
Hazardous weather outlook, Jun 7, 11:42 AM CDT, 6 hours 7 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NORMAN OK 1142 AM CDT SUN JUN 7 2015 OKZ004>048-050>052-TXZ083>090-081800- 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- 1142 AM CDT SUN JUN 7 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN... WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS. .DAY ONE...THROUGH TONIGHT... .THUNDERSTORMS... THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS LATE THIS AFTERNOON THROUGH LATE TONIGHT ACROSS PORTIONS OF NORTHWESTERN OKLAHOMA. .LOCATION... THE SLIGHT RISK AREA IS NORTHWEST OF A LINE FROM GAGE TO MEDFORD OKLAHOMA. A MARGINAL RISK OF SEVERE STORMS ENCOMPASSES THE SLIGHT RISK...ALONG AND NORTH OF A LINE FROM CHEYENNE TO PERRY OKLAHOMA. .TIMING... 7 PM THROUGH 1 AM. .IMPACTS... HAIL UP TO THE SIZE OF HALF DOLLARS... WINDS UP TO 60 MPH... .DISCUSSION... A WEAK COLD FRONT WILL MOVE INTO NORTHWESTERN OKLAHOMA LATE TONIGHT...WHILE AN UPPER LEVEL DISTURBANCE MOVES OVER THE SAME AREA. THUNDERSTORMS ARE INITIALLY EXPECTED TO DEVELOP ACROSS PORTIONS OF THE NORTHERN TEXAS PANHANDLE AND OKLAHOMA PANHANDLE DURING THE LATE AFTERNOON AND EARLY EVENING HOURS...AND THEN SPREAD EAST SOUTHEAST WITH THE FRONT DURING THE OVERNIGHT HOURS INTO NORTHWESTERN OKLAHOMA. THE STORMS SHOULD DISSIPATE DURING THE EARLY MORNING HOURS MONDAY AS THEY SLOWLY SHIFT SOUTHWARD OVER PORTIONS OF WEST CENTRAL AND NORTH CENTRAL OKLAHOMA. .SPOTTER AND EMERGENCY MANAGEMENT STATEMENT... STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS NORTHWESTERN OKLAHOMA SHOULD PREPARE FOR SEVERE WEATHER OPERATIONS SUNDAY EVENING THROUGH SUNDAY NIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY... A FEW STRONG THUNDERSTORMS WILL BE POSSIBLE ACROSS CENTRAL OKLAHOMA AND PORTIONS OF WESTERN NORTH TEXAS MONDAY AFTERNOON AND EVENING. THE MAIN THREAT WITH THESE STORMS WILL BE HAIL UP TO THE SIZE OF QUARTERS AND WIND GUSTS NEARING 60 MPH. THUNDERSTORM CHANCES WILL CONTINUE THROUGH THE WEEK. ALTHOUGH THE LIKELIHOOD OF WIDESPREAD SEVERE WEATHER APPEARS LOW AT THE MOMENT...LOCALIZED FLASH FLOODING MAY BE POSSIBLE BY LATE FRIDAY NIGHT THROUGH SATURDAY MAINLY WEST OF I35...AS SEVERAL ROUNDS OF THUNDERSTORMS MOVE OVER THE SAME AREAS. GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK. 03/AUSTIN
In the hours before
Special weather statement, Jun 7, 5:34 PM CDT, 15 minutes before
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</html>The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 5:34 PM CDT | Special Weather Statement | OUN | Harper | 26 min |
| Jun 7, 6:46 PM CDT | Special Weather Statement | OUN | Harper, Woodward | 29 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2015Every severe thunderstorm warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.