Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 537, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Jun 29, 2015, 8:37 PM CDT for Cleveland County, McClain County, Oklahoma. It was in force for 38 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 29, 2015, 8:37 PM CDT (01:37 UTC)
- Expired
- Jun 29, 2015, 9:15 PM CDT
- In force
- 38 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 70.0 mph
Counties Cleveland County, OK, McClain County, OK
The radar
The Norman radar (KTLX), 27 km from the middle of the area, began a volume at 01:39 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
Norman, OK (KOUN), launched 00:00Z, 1.6 hours before the alert went out and 13 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
- 2885 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1677 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.2
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 29, 2:36 PM CDT, 6 hours 1 minute earlier.
Area forecast discussion, Jun 29, 2:36 PM CDT, 6 hours 1 minute before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 236 PM CDT MON JUN 29 2015 .DISCUSSION... AN UPPER LEVEL RIDGE WILL CONTINUE TO DOMINATE IN THE SHORT TERM...KEEPING TUESDAY AND WEDNESDAY HOT AND FAIRLY DRY. WITH ABUNDANT MOISTURE IN THE AREA...HEAT INDICES WILL REACH INTO THE TRIPLE DIGITS. ENTERING INTO THURSDAY...THE RIDGE BEGINS TO BREAK DOWN AS A SHORT WAVE AND ASSOCIATED COLD FRONT SWINGS THROUGH. RAIN CHANCES WILL INCREASE THURSDAY THROUGH SATURDAY...SO WE MAY SEE A FAIRLY WET 4TH OF JULY. ENOUGH INSTABILITY AND SHEAR WILL BE IN PLACE FOR A FEW STRONG TO SEVERE STORMS...BUT WIDESPREAD SEVERE WEATHER IS NOT EXPECTED. THIS COLD FRONT WILL ALSO COOL THINGS OFF A BIT THROUGH THE WEEKEND...BRINGING HIGHS DOWN INTO THE 80S. AFTER THIS SYSTEM MOVES OUT SATURDAY NIGHT...THE RIDGE BEGINS TO BUILD BACK IN...SIGNALING A RETURN OF HOT AND DRY WEATHER FOR EARLY NEXT WEEK. MAD && .PRELIMINARY POINT TEMPS/POPS...CORRECTED OKLAHOMA CITY OK 71 96 74 95 / 10 0 0 10 HOBART OK 69 98 74 98 / 20 0 0 0 WICHITA FALLS TX 73 97 75 98 / 20 0 0 0 GAGE OK 66 97 74 99 / 10 0 0 20 PONCA CITY OK 70 98 78 99 / 0 0 0 20 DURANT OK 71 95 72 94 / 20 10 10 10 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...NONE. TX...NONE. && 04/14
Hazardous weather outlook, Jun 29, 6:31 PM CDT, 2 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NORMAN OK 631 PM CDT MON JUN 29 2015 OKZ004>048-050>052-TXZ083>090-302345- 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- 631 PM CDT MON JUN 29 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN... WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS. .DAY ONE...TONIGHT... .THUNDERSTORMS... ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL REMAIN POSSIBLE THROUGH LATE EVENING ACROSS PORTIONS OF CENTRAL AND SOUTHERN OKLAHOMA AND WESTERN NORTH TEXAS... MAINLY ALONG AND SOUTH OF INTERSTATE 40. SOME STRONG TO SEVERE STORMS WILL BE POSSIBLE PRODUCING HAIL UP TO THE SIZE OF HALF DOLLARS AND WIND GUSTS UP TO 65 MPH. HEAVY RAIN AND LOCALIZED FLOODING WILL ALSO BE A CONCERN. THE POTENTIAL FOR SEVERE STORMS WILL DECREASE AFTER SUNSET. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... .THUNDERSTORMS... THUNDERSTORM CHANCES WILL CONTINUE THROUGH THE WORK WEEK. ALTHOUGH WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED AT THIS TIME... A FEW STRONG TO SEVERE STORMS WILL BE POSSIBLE LATE THIS WEEK THROUGH THE WEEKEND. HEAVY RAINFALL MAY ALSO RESULT IN LOCALIZED FLOODING. .HEAT... HOT AND HUMID CONDITIONS ARE EXPECTED TUESDAY AND WEDNESDAY...WITH HEAT INDICES REACHING THE LOW 100S ACROSS PORTIONS OF OKLAHOMA. WEDNESDAY WILL LIKELY BE THE HOTTEST DAY AS TEMPERATURES APPROACH OR EXCEED 100 DEGREES ACROSS NORTHWESTERN OKLAHOMA. GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK. JTK/EM
In the hours before
Special weather statement, Jun 29, 7:31 PM CDT, 1 hour 6 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 29, 7:03 PM CDT | Special Weather Statement | OUN | Caddo | 27 min |
| Jun 29, 7:12 PM CDT | Severe Thunderstorm Warning | OUN | Canadian | 34 min |
| Jun 29, 7:21 PM CDT | Special Weather Statement | OUN | Greer, Washita | 39 min |
| Jun 29, 7:26 PM CDT | Areal Flood Advisory | OUN | Caddo, Canadian, Grady | 3 hr |
| Jun 29, 7:29 PM CDT | Special Weather Statement | OUN | Canadian | 46 min |
| Jun 29, 7:31 PM CDT | Special Weather Statement | OUN | Pottawatomie, Seminole | 29 min |
| Jun 29, 7:56 PM CDT | Areal Flood Advisory | OUN | Beckham, Greer, Kiowa, Washita | 2 hr |
| Jun 29, 8:00 PM CDT | Special Weather Statement | OUN | McClain | 30 min |
| Jun 29, 8:03 PM CDT | Special Weather Statement | OUN | Greer | 27 min |
| Jun 29, 8:07 PM CDT | Special Weather Statement | OUN | Atoka | 23 min |
| Jun 29, 8:29 PM CDT | Special Weather Statement | OUN | McClain | 46 min |
| Jun 29, 8:57 PM CDT | Special Weather Statement | OUN | Coal | 48 min |
| Jun 29, 8:59 PM CDT | Special Weather Statement | OUN | McClain | 46 min |
| Jun 29, 9:04 PM CDT | Special Weather Statement | OUN | Greer, Harmon, Jackson | 26 min |
| Jun 29, 9:27 PM CDT | Areal Flood Advisory | OUN | Atoka, Coal, Hughes | 3 hr |
| Jun 29, 9:50 PM CDT | Special Weather Statement | OUN | Atoka, Coal | 40 min |
| Jun 29, 10:39 PM CDT | Special Weather Statement | OUN | Pontotoc | 51 min |
| Jun 29, 11:11 PM CDT | Areal Flood Advisory | OUN | Coal, Johnston, Pontotoc | 3 hr |
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.