Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 236, NWS Norman, OK

July 14, 2014Custer County, Dewey County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jul 14, 2014, 8:25 PM CDT for Custer County, Dewey County, Oklahoma. It was in force for 26 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
Jul 14, 2014, 8:25 PM CDT (01:25 UTC)
Expired
Jul 14, 2014, 8:51 PM CDT
In force
26 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Custer County, OK, Dewey County, OK

The radar

The Vance AFB radar (KVNX), 130 km from the middle of the area, began a volume at 01:25 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, 1.4 hours before the alert went out and 160 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.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2014-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 717 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2014-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
717 J/kg
Mixed-layer CIN
-75 J/kg
Mixed-layer LCL
1562 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

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 Jul 14, 6:53 PM CDT, 1 hour 32 minutes earlier.

Area forecast discussion, Jul 14, 6:53 PM CDT, 1 hour 32 minutes before
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Hazardous weather outlook, Jul 14, 11:45 AM CDT, 8 hours 40 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1145 AM CDT MON JUL 14 2014

OKZ004>048-050>052-TXZ083>090-151030-
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-
1145 AM CDT MON JUL 14 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN...
WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH
TEXAS.

.DAY ONE...THROUGH TONIGHT...

.THUNDERSTORMS...
THE CHANCE FOR SCATTERED TO ISOLATED THUNDERSTORMS WILL CONTINUE
THROUGH THE DAY. THE BEST CHANCES WILL EXIST THIS AFTERNOON AND
EVENING AS A COLD FRONT PUSHES SOUTHWARD ACROSS THE REGION. SEVERE
WEATHER CHANCES ARE LOW... BUT A FEW STORMS THIS AFTERNOON AND
EVENING MAY PRODUCE WIND GUSTS NEAR 50 MPH.

OVERNIGHT... ANY REMAINING STORMS WILL PUSH TOWARD THE RED RIVER
AS HIGH PRESSURE BUILDS INTO THE REGION FROM THE NORTH.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

.THUNDERSTORMS...
STORM CHANCES ON TUESDAY ARE LOW... AS SURFACE HIGH PRESSURE
SPREADS INTO THE SOUTHERN PLAINS AND OZARKS... LEAVING MUCH OF THE
REGION DRY. AFTER THIS LULL IN ACTIVITY... CHANCES WILL INCREASE
LATE TUESDAY INTO WEDNESDAY AS AN UPPER LEVEL DISTURBANCE
APPROACHES FROM THE NORTHWEST. AS THE SYSTEM CROSSES THE REGION
WEDNESDAY INTO THURSDAY... A COMPLEX OF THUNDERSTORMS APPEARS
LIKELY. DEPENDING ON STORM MOTION AND COVERAGE... HEAVY RAINFALL
MAY LEAD TO FLASH FLOODING... ESPECIALLY WEDNESDAY INTO THURSDAY.

THE CHANCE FOR STORMS WILL CONTINUE THROUGH FRIDAY AS THE UPPER
WAVE EXITS TO THE EAST AND A FRONT LINGERS ACROSS TEXAS.

GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW
OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK.

KURTZ/30

In the hours before

Local storm report, Jul 14, 2:47 PM CDT, 5 hours 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
247 PM CDT MON JUL 14 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0247 PM     HAIL             5 S CARNEGIE            35.03N 98.60W
07/14/2014  E1.00 INCH       CADDO              OK   PUBLIC

&&

JPIKE
Special weather statement, Jul 14, 3:19 PM CDT, 5 hours 6 minutes before
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Special weather statement, Jul 14, 3:30 PM CDT, 4 hours 55 minutes before
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Special weather statement, Jul 14, 5:03 PM CDT, 3 hours 22 minutes before
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Local storm report, Jul 14, 5:13 PM CDT, 3 hours 12 minutes before
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Special weather statement, Jul 14, 5:29 PM CDT, 2 hours 56 minutes before
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The office that day

Everything else NWS Norman, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 14, 8:06 PM CDTSpecial Weather StatementOUNDewey24 min
Jul 14, 8:11 PM CDTSpecial Weather StatementOUNAtoka34 min
Jul 14, 9:23 PM CDTSpecial Weather StatementOUNCleveland37 min
Jul 14, 10:29 PM CDTSpecial Weather StatementOUNMcClain31 min
Jul 14, 11:12 PM CDTSpecial Weather StatementOUNMcClain33 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2014Every severe thunderstorm warning in 2014

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.