Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 176, NWS Norman, OK

April 22, 20154 counties in Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 22, 2015, 3:56 AM CDT for 4 counties in 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: Apr 22, 2015, 3:56 AM CDT (08:56 UTC)
Expired: Apr 22, 2015, 4:45 AM CDT
In force: 49 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, Ellis County, OK, Roger Mills County, OK

The radar

The Vance AFB radar (KVNX), 146 km from the middle of the area, began a volume at 08:56 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.

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 Apr 22, 2:42 AM CDT, 1 hour 14 minutes earlier.

Area forecast discussion, Apr 22, 2:42 AM CDT, 1 hour 14 minutes before

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Hazardous weather outlook, Apr 21, 11:16 PM CDT, 4 hours 40 minutes before

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In the hours before

Special weather statement, Apr 22, 3:30 AM CDT, 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
330 AM CDT WED APR 22 2015

OKZ009-014-220900-
ROGER MILLS OK-ELLIS OK-
330 AM CDT WED APR 22 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN ROGER MILLS AND
SOUTHWESTERN ELLIS COUNTIES UNTIL 400 AM CDT...

AT 328 AM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR LAKE MARVIN...
MOVING EAST AT 30 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...

LOCATIONS IMPACTED INCLUDE...
ARNETT...ROLL...CRAWFORD AND DURHAM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3608 10000 3616 9967 3569 9964 3573 10000
TIME...MOT...LOC 0828Z 264DEG 25KT 3589 10014

MAHALE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 22, 3:30 AM CDT	Special Weather Statement	OUN	Roger Mills	30 min
Apr 22, 4:39 AM CDT	Severe Thunderstorm Warning	OUN	Custer, Roger Mills, Washita	51 min
Apr 22, 4:55 AM CDT	Special Weather Statement	OUN	Beckham	35 min
Apr 22, 5:09 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Kiowa, Washita	51 min
Apr 22, 5:43 AM CDT	Special Weather Statement	OUN	Canadian	32 min
Apr 22, 5:50 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Kiowa, Washita	40 min
Apr 22, 6:25 AM CDT	Special Weather Statement	OUN	Ellis	35 min
Apr 22, 6:28 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Grady, Kiowa, Washita	47 min
Apr 22, 7:08 AM CDT	Special Weather Statement	OUN	Cleveland, Pottawatomie	37 min
Apr 22, 7:13 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Cotton, Garvin, Grady, Stephens	47 min
Apr 22, 7:17 AM CDT	Special Weather Statement	OUN	Comanche	28 min
Apr 22, 7:39 AM CDT	Special Weather Statement	OUN	Caddo	36 min
Apr 22, 7:57 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Jefferson, Murray, Stephens	48 min
Apr 22, 8:27 AM CDT	Special Weather Statement	OUN	Washita	33 min
Apr 22, 8:48 AM CDT	Special Weather Statement	OUN	Caddo, Grady	27 min
Apr 22, 8:49 AM CDT	Special Weather Statement	OUN	Marshall	26 min
Apr 22, 9:16 AM CDT	Special Weather Statement	OUN	Marshall	29 min
Apr 22, 9:21 AM CDT	Special Weather Statement	OUN	Grady	24 min
Apr 22, 9:49 AM CDT	Special Weather Statement	OUN	Bryan	41 min
Apr 22, 9:52 AM CDT	Special Weather Statement	OUN	Garvin	23 min
Apr 22, 10:15 AM CDT	Special Weather Statement	OUN	Garvin, Stephens	30 min
Apr 22, 6:29 PM CDT	Special Weather Statement	OUN	Archer	46 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2015 Every 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; radar from the NEXRAD Level II archive.