Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 484, NWS Norman, OK

June 3, 20135 counties in Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 3, 2013, 10:52 PM CDT for 5 counties in 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 3, 2013, 10:52 PM CDT (03:52 UTC)
Expired: Jun 3, 2013, 11:30 PM CDT
In force: 38 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

Counties Custer County, OK, Dewey County, OK, Ellis County, OK, Roger Mills County, OK, Woodward County, OK

The radar

The Vance AFB radar (KVNX), 137 km from the middle of the area, began a volume at 03:55 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 3, 3:30 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
Jun 3, 10:41 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 00:00Z, 3.9 hours before the alert went out and 181 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 83 J/kg
Mixed-layer CIN: -436 J/kg
Mixed-layer LCL: 1786 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 194 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 Jun 3, 10:16 PM CDT, 36 minutes earlier.

Area forecast discussion, Jun 3, 10:16 PM CDT, 36 minutes before

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Hazardous weather outlook, Jun 3, 5:00 PM CDT, 5 hours 52 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
500 PM CDT MON JUN 3 2013

OKZ004>048-050>052-TXZ083>090-041200-
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-
500 PM CDT MON JUN 3 2013

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THIS EVENING AND OVERNIGHT...

THUNDERSTORM OUTLOOK...
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF WESTERN
OKLAHOMA AND PARTS OF WESTERN NORTH TEXAS. THUNDERSTORMS ARE EXPECTED
TO DEVELOP FROM FAR NORTHWEST OKLAHOMA DOWN TO WEST CENTRAL OKLAHOMA...
SOUTHWEST OKLAHOMA...AND EVENTUALLY WESTERN NORTH TEXAS.

LOCATION...
THE SLIGHT RISK IS ALONG AND WEST OF A LINE FROM CHEROKEE AND HINTON...
SOUTHWARD TO LAWTON AND SEYMOUR TEXAS.

IMPACTS...
THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING HAIL UP TO THE SIZE
OF GOLF BALLS...WIND GUSTS TO 70 MPH...AND HEAVY RAINFALL RESULTING
IN LOCALIZED FLOODING...

TIMING...
THE MOST LIKELY TIME FOR SEVERE STORMS WILL BE BETWEEN 6 PM AND 11 PM.

RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS
PARTS OF WESTERN OKLAHOMA AND WESTERN NORTH TEXAS SHOULD PREPARE
FOR SEVERE WEATHER OPERATIONS LAT THIS AFTERNOON INTO THIS EVENING.

DISCUSSION...
THUNDERSTORMS HAVE DEVELOPED LATE THIS AFTERNOON ACROSS PORTIONS
OF SOUTHWEST KANSAS AND THE OKLAHOMA PANHANDLE. THIS ACTIVITY IS
EXPECTED TO EXPAND EAST SOUTHEAST...MOVING INTO FAR NORTHWEST OKLAHOMA
BY AS EARLY AS 6 PM. RELATIVELY LARGE TEMPERATURE DEWPOINT SPREADS
WILL LIKELY RESULT IN DAMAGING WIND GUSTS WITH THE STRONGEST STORMS.
LARGE HAIL WILL ALSO BE A CONCERN WITH STRONGER STORM CORES. A
SOUTHEAST MOVING THUNDERSTORM COMPLEX IS LIKELY TO DEVELOP...WITH
A HAIL AND DAMAGING WIND THREAT WELL INTO THE NIGHT. THE THREAT FOR
SEVERE WINDS AND HAIL SHOULD GENERALLY SUBSIDE BY 11 PM...THOUGH STORMS
MAY PERSIST WELL AFTER THAT TIMEFRAME.

PROBABILITY TABLE...
VALID THROUGH 700 PM CDT TUESDAY JUN 4.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...90 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

HEAVY RAINFALL LEADING TO FLOODING WILL BE A CONCERN TONIGHT...
ESPECIALLY IN THOSE AREAS THAT HAVE RECEIVED 4 INCHES OF
RAINFALL OR MORE OVER THE LAST FEW DAYS.

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

THUNDERSTORM OUTLOOK...
THUNDERSTORMS WILL REMAIN POSSIBLE INTO THE WEEKEND ACROSS PARTS OF
OKLAHOMA AND WESTERN NORTH TEXAS. THE BEST CHANCE AND MOST WIDESPREAD
STORMS WILL LIKELY BE WEDNESDAY. SEVERE STORMS WILL BE POSSIBLE ACROSS
PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS TUESDAY AND WEDNESDAY. LARGE
HAIL AND STRONG WINDS WILL BE THE MAIN CONCERNS. ALTHOUGH A TORNADO OR
TWO MAY ALSO OCCUR...THE OVERALL TORNADO THREAT WILL BE LOW.

OTHER HAZARDOUS WEATHER... HEAVY RAINFALL AND LOCALIZED FLOODING
POTENTIAL IS HIGHEST WEDNESDAY AND EARLY THURSDAY IN CENTRAL AND
SOUTHERN OKLAHOMA.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED BY 5 AM
TUESDAY.

MAXWELL/AUSTIN

In the hours before

Local storm report, Jun 3, 9:26 PM CDT, 1 hour 26 minutes before

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Local storm report, Jun 3, 9:28 PM CDT, 1 hour 24 minutes before

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Local storm report, Jun 3, 9:39 PM CDT, 1 hour 13 minutes before

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Local storm report, Jun 3, 9:46 PM CDT, 1 hour 6 minutes before

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Special weather statement, Jun 3, 10:20 PM CDT, 32 minutes before

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Local storm report, Jun 3, 10:52 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 7:02 PM CDT	Special Weather Statement	OUN	Harper	43 min
Jun 3, 7:40 PM CDT	Severe Thunderstorm Warning	OUN	Harper	50 min
Jun 3, 8:29 PM CDT	Special Weather Statement	OUN	Harper	31 min
Jun 3, 8:44 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper	46 min
Jun 3, 9:24 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woods, Woodward	51 min
Jun 3, 9:48 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis, Major, Woods, Woodward	42 min
Jun 3, 10:13 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills, Woodward	47 min
Jun 3, 10:20 PM CDT	Special Weather Statement	OUN	Alfalfa, Woods	40 min
Jun 3, 11:09 PM CDT	Special Weather Statement	OUN	Alfalfa, Major, Woods	36 min
Jun 3, 11:27 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey, Roger Mills	48 min
Jun 3, 11:50 PM CDT	Special Weather Statement	OUN	Harper	40 min
Jun 4, 1:04 AM CDT	Special Weather Statement	OUN	Harper	26 min
Jun 4, 1:10 AM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woodward	65 min
Jun 4, 1:18 AM CDT	Special Weather Statement	OUN	Major	27 min
Jun 4, 1:32 AM CDT	Special Weather Statement	OUN	Major, Woodward	43 min
Jun 4, 1:44 AM CDT	Special Weather Statement	OUN	Kingfisher	46 min
Jun 4, 1:55 AM CDT	Severe Thunderstorm Warning	OUN	Kingfisher, Logan	50 min
Jun 4, 2:30 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Kingfisher, Logan	60 min
Jun 4, 2:51 AM CDT	Special Weather Statement	OUN	Custer, Dewey	39 min
Jun 4, 2:55 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey, Major, Roger Mills, Woodward	65 min
Jun 4, 3:02 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Logan, Payne	58 min
Jun 4, 3:16 AM CDT	Special Weather Statement	OUN	Canadian	44 min
Jun 4, 3:23 AM CDT	Flash Flood Warning	OUN	Canadian, Oklahoma	4 hr
Jun 4, 3:51 AM CDT	Special Weather Statement	OUN	Oklahoma	24 min
Jun 4, 3:56 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Custer, Kiowa, Washita	49 min
Jun 4, 4:14 AM CDT	Special Weather Statement	OUN	Greer, Harmon	31 min
Jun 4, 4:25 AM CDT	Flash Flood Warning	OUN	Cleveland, Grady, McClain	3 hr
Jun 4, 4:29 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Kiowa	46 min
Jun 4, 4:42 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Grady, Kiowa	48 min
Jun 4, 4:45 AM CDT	Special Weather Statement	OUN	Greer	30 min
Jun 4, 4:48 AM CDT	Special Weather Statement	OUN	Cleveland, McClain, Pottawatomie	27 min
Jun 4, 4:58 AM CDT	Severe Thunderstorm Warning	OUN	Kiowa, Washita	47 min
Jun 4, 5:30 AM CDT	Special Weather Statement	OUN	Garvin, McClain, Stephens	30 min
Jun 4, 6:05 AM CDT	Special Weather Statement	OUN	Garvin, Hughes, Jefferson, Pontotoc, Stephens	25 min
Jun 4, 6:38 AM CDT	Special Weather Statement	OUN	Carter, Coal, Johnston, Murray, Pontotoc	37 min
Jun 4, 6:42 AM CDT	Special Weather Statement	OUN	Jefferson, Love	33 min
Jun 4, 7:14 AM CDT	Special Weather Statement	OUN	Atoka, Bryan, Coal, Johnston, Love, Marshall	46 min
Jun 4, 7:26 AM CDT	Special Weather Statement	OUN	Cotton	34 min
Jun 4, 8:50 AM CDT	Special Weather Statement	OUN	Jefferson	25 min
Jun 4, 2:43 PM CDT	River Flood Warning	OUN	Pottawatomie, Seminole	12 min
Jun 4, 4:06 PM CDT	Flash Flood Watch	OUN	Atoka, Bryan, Canadian, Carter, Cleveland, Coal and 20 more	36 hr
Jun 4, 6:22 PM CDT	Special Weather Statement	OUN	Knox	38 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2013 Every severe thunderstorm warning in 2013

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.