Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 338, NWS Norman, OK

December 14, 2014Cleveland County, McClain County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Dec 14, 2014, 5:26 PM CST for Cleveland County, McClain County, Oklahoma. It was in force for 49 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
Dec 14, 2014, 5:26 PM CST (23:26 UTC)
Expired
Dec 14, 2014, 6:15 PM CST
In force
49 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 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 23:27 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 12:00Z, 11.4 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.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 12:00Z on 2014-12-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 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 12:00Z on 2014-12-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 277 square meters per square second.19395878Sfc1 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
14 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
507 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
277 m²/s²
0-3 km storm-relative helicity
176 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Dec 14, 5:18 PM CST, 8 minutes earlier.

Area forecast discussion, Dec 14, 5:18 PM CST, 8 minutes before
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Hazardous weather outlook, Dec 14, 11:52 AM CST, 5 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
ISSUED BY NATIONAL WEATHER SERVICE TULSA OK
1152 AM CST SUN DEC 14 2014

OKZ004>048-050>052-TXZ083>090-151115-
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-
1152 AM CST SUN DEC 14 2014

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORMS ARE EXPECTED THROUGH THIS EVENING AS A POWERFUL STORM
SYSTEM TRACKS ACROSS THE SOUTHERN PLAINS. THUNDERSTORMS ONGOING JUST
WEST OF THE INTERSTATE 35 CORRIDOR WILL CONTINUE TO SPREAD EASTWARD
INTO THE EASTERN HALF OF OKLAHOMA THIS AFTERNOON.

A FEW STRONG TO SEVERE STORMS MAY DEVELOP ALONG AND EAST OF
INTERSTATE 35...AND SOUTH OF INTERSTATE 40 LATER THIS AFTERNOON. THE
STRONGEST STORMS MAY PRODUCE WIND GUSTS OVER 55 MPH...AND SMALL
HAIL. BY LATE THIS EVENING...MOST OF THE STORMS WILL BE CONFINED TO
FAR EASTERN OKLAHOMA.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

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

In the hours before

Local storm report, Dec 14, 4:48 PM CST, 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
448 PM CST SUN DEC 14 2014

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

0445 PM     HAIL             OKLAHOMA CITY           35.47N 97.51W
12/14/2014  E1.75 INCH       OKLAHOMA           OK   BROADCAST MEDIA

            DOWNTOWN OKC, PLAZA DISTRICT

&&

OUN
Local storm report, Dec 14, 4:54 PM CST, 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
454 PM CST SUN DEC 14 2014

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

0447 PM     HAIL             OKLAHOMA CITY           35.47N 97.51W
12/14/2014  E2.00 INCH       OKLAHOMA           OK   PUBLIC

            DOWNTOWN PLAZA DISTRICT, REPORT VIA SOCIAL MEDIA

&&

OUN
Special weather statement, Dec 14, 4:57 PM CST, 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
457 PM CST SUN DEC 14 2014

OKZ031-032-042-142330-
SEMINOLE OK-PONTOTOC OK-HUGHES OK-
457 PM CST SUN DEC 14 2014

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN SEMINOLE...
NORTHEASTERN PONTOTOC AND NORTHWESTERN HUGHES COUNTIES UNTIL 530 PM
CST...

AT 454 PM CST...A STRONG THUNDERSTORM WAS LOCATED NEAR SASAKWA...
MOVING NORTHEAST AT 50 TO 60 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF QUARTERS...
WIND GUSTS TO 40 MPH...
FREQUENT CLOUD TO GROUND LIGHTNING...

LAT...LON 3481 9646 3490 9665 3529 9641 3529 9632
      3521 9619
TIME...MOT...LOC 2254Z 211DEG 52KT 3493 9651
Local storm report, Dec 14, 5:03 PM CST, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
503 PM CST SUN DEC 14 2014

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

0456 PM     HAIL             4 SE EDMOND             35.61N 97.43W
12/14/2014  E1.00 INCH       OKLAHOMA           OK   BROADCAST MEDIA

            COVERING GROUND AT I-35 AND KILPATRICK TURNPIKE
            INTERCHANGE

&&

OUN
Special weather statement, Dec 14, 5:06 PM CST, 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
506 PM CST SUN DEC 14 2014

OKZ027>029-142330-
MCCLAIN OK-GRADY OK-CLEVELAND OK-
506 PM CST SUN DEC 14 2014

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL MCCLAIN...EAST
CENTRAL GRADY AND CENTRAL CLEVELAND COUNTIES UNTIL 530 PM CST...

AT 505 PM CST...A STRONG THUNDERSTORM WAS LOCATED 5 MILES NORTH OF
BRADLEY...MOVING NORTHEAST AT 40 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 40 MPH...
IN ADDITION...WEAK ROTATION HAS BEEN NOTED WITH THIS STORM...AND
BRIEF FUNNEL CLOUDS MAY OCCUR AS THE STORM MOVES NORTHEAST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.

&&

LAT...LON 3484 9772 3491 9781 3527 9756 3508 9732
TIME...MOT...LOC 2305Z 223DEG 35KT 3495 9769

AUSTIN
Local storm report, Dec 14, 5:09 PM CST, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
509 PM CST SUN DEC 14 2014

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

0502 PM     HAIL             5 SE EDMOND             35.60N 97.41W
12/14/2014  E1.75 INCH       OKLAHOMA           OK   NWS EMPLOYEE

            NEAR 122ND AND AIR DEPOT BLVD

&&

OUN

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 14, 9:26 AM CSTSpecial Weather StatementOUNCuster, Washita34 min
Dec 14, 1:18 PM CSTSpecial Weather StatementOUNComanche27 min
Dec 14, 1:44 PM CSTSpecial Weather StatementOUNCaddo31 min
Dec 14, 2:06 PM CSTSevere Thunderstorm WarningOUNCaddo, Grady24 min
Dec 14, 2:29 PM CSTSpecial Weather StatementOUNGrady31 min
Dec 14, 2:57 PM CSTSpecial Weather StatementOUNCanadian48 min
Dec 14, 3:19 PM CSTSpecial Weather StatementOUNGrady26 min
Dec 14, 3:40 PM CSTSpecial Weather StatementOUNGrady35 min
Dec 14, 3:43 PM CSTSpecial Weather StatementOUNCanadian32 min
Dec 14, 3:49 PM CSTSevere Thunderstorm WarningOUNCanadian, Cleveland, Grady, McClain26 min
Dec 14, 4:04 PM CSTSevere Thunderstorm WarningOUNCanadian, Kingfisher, Logan, Oklahoma41 min
Dec 14, 4:05 PM CSTSpecial Weather StatementOUNMurray, Pontotoc25 min
Dec 14, 4:11 PM CSTSevere Thunderstorm WarningOUNCanadian, Cleveland, Grady, Oklahoma49 min
Dec 14, 4:32 PM CSTSpecial Weather StatementOUNPontotoc28 min
Dec 14, 4:39 PM CSTSevere Thunderstorm WarningOUNLogan, Noble, Payne51 min
Dec 14, 4:52 PM CSTSevere Thunderstorm WarningOUNLincoln, Logan, Oklahoma38 min
Dec 14, 4:57 PM CSTSpecial Weather StatementOUNHughes33 min
Dec 14, 5:06 PM CSTSpecial Weather StatementOUNMcClain24 min
Dec 14, 5:11 PM CSTTornado Warning Tornado observedOUNLincoln, Logan, Oklahoma34 min
Dec 14, 5:35 PM CSTSpecial Weather StatementOUNPayne25 min
Dec 14, 5:52 PM CSTSpecial Weather StatementOUNCoal, Hughes23 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.