Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 337, NWS Norman, OK

September 15, 20104 counties in Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Sep 15, 2010, 5:48 PM CDT for 4 counties in Oklahoma. It was in force for 57 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
Sep 15, 2010, 5:48 PM CDT (22:48 UTC)
Expired
Sep 15, 2010, 6:45 PM CDT
In force
57 min
Issued by
NWS Norman, OK
Area
Storm-based polygon

Counties Alfalfa County, OK, Garfield County, OK, Grant County, OK, Woods County, OK

The radar

The Vance AFB radar (KVNX), 10 km from the middle of the area, began a volume at 22:49 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 Sep 15, 3:46 PM CDT, 2 hours 2 minutes earlier.

Area forecast discussion, Sep 15, 3:46 PM CDT, 2 hours 2 minutes before
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Hazardous weather outlook, Sep 15, 3:45 PM CDT, 2 hours 3 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
345 PM CDT WED SEP 15 2010

OKZ004>048-050>052-TXZ083>090-161000-
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-
345 PM CDT WED SEP 15 2010

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

.DAY ONE...TODAY AND TONIGHT...

THUNDERSTORM OUTLOOK...
A FEW THUNDERSTORMS COULD BECOME SEVERE LATE THIS AFTERNOON AND EVENING...
MAINLY ALONG AND NORTH OF INTERSTATE 40.

DISCUSSION...
A COLD FRONT WILL MOVE INTO NORTHWEST OKLAHOMA BY EARLY THIS EVENING
AND WILL REACH THE INTERSTATE 40 CORRIDOR BY EARLY THURSDAY
MORNING. THE INSTABILITY AND VERTICAL WIND SHEAR ARE EXPECTED TO BE
ADEQUATE TO SUPPORT A FEW SEVERE STORMS MAINLY ACROSS NORTHERN
OKLAHOMA. THE STRONGEST STORMS... WHICH WILL MOST LIKELY OCCUR
DURING THE LATE AFTERNOON AND EVENING HOURS... COULD PRODUCE BRIEF
WIND GUSTS TO NEAR 65 MPH AND QUARTER SIZE HAIL.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT THURSDAY SEP 16.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...70 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...30 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

THUNDERSTORM OUTLOOK...
SCATTERED THUNDERSTORMS WILL BE POSSIBLE ON THURSDAY MAINLY
NORTH OF INTERSTATE 40.  A FEW STRONG TO MARGINALLY SEVERE STORMS
WILL BE POSSIBLE...ESPECIALLY DURING THE AFTERNOON AND EVENING
HOURS.  A FEW STORMS MAY LINGER INTO FRIDAY. DRY WEATHER IS
EXPECTED DURING THE WEEKEND AND INTO EARLY NEXT WEEK.

OTHER HAZARDOUS WEATHER...
NONE.

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

In the hours before

Special weather statement, Sep 15, 5:24 PM CDT, 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
524 PM CDT WED SEP 15 2010

OKZ005>007-152245-
WOODS OK-ALFALFA OK-GRANT OK-
524 PM CDT WED SEP 15 2010

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR ALFALFA...GRANT AND WOODS
COUNTIES.

AT 520 PM CDT...A BROKEN LINE OF SHOWERS WAS DEVELOPING FROM THE
KANSAS STATE LINE NEAR WALDRON...DOWN TO JUST EAST OF
DACOMA...MOVING EAST AT 25 MPH. THESE SHOWERS MAY EVOLVE INTO
THUNDERSTORMS BY 6 PM AND PRODUCE STRONG WIND GUSTS. SEVERE WEATHER
IS ALSO POSSIBLE IF STORMS CAN DEVELOP AND MATURE.

HAZARDS INCLUDE...
WIND GUSTS TO 50 MPH...

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

LAT...LON 3700 9790 3656 9830 3654 9878 3701 9834
Special weather statement, Sep 15, 5:39 PM CDT, 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
539 PM CDT WED SEP 15 2010

OKZ014-152300-
ROGER MILLS OK-
539 PM CDT WED SEP 15 2010

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR ROGER MILLS COUNTY.

AT 539 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 5 MILES NORTHWEST
OF REYDON...MOVING EAST AT 20 MPH.

HAZARDS INCLUDE...
WIND GUSTS TO 50 MPH...

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

LAT...LON 3575 10000 3577 10000 3578 10000 3578 9968
      3556 9969 3559 10001 3574 10001

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 15, 6:15 PM CDTSevere Thunderstorm WarningOUNRoger Mills45 min
Sep 15, 6:40 PM CDTSevere Thunderstorm WarningOUNAlfalfa, Garfield, Major65 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2010Every severe thunderstorm warning in 2010

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.