Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 10, NWS Norman, OK

January 29, 2013Clay County, Texas

NWS Norman, OK issued this severe thunderstorm warning at Jan 29, 2013, 11:42 AM CST for Clay County, Texas. It was in force for 33 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: Jan 29, 2013, 11:42 AM CST (17:42 UTC)
Expired: Jan 29, 2013, 12:15 PM CST
In force: 33 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

County Clay County, TX

The radar

The Altus AFB radar (KFDR), 95 km from the middle of the area, began a volume at 17:43 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

Fort Worth, TX (KFWD), launched 12:00Z, 5.7 hours before the alert went out and 136 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: 965 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 544 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 401 m²/s²
0-3 km storm-relative helicity: 413 m²/s²
Significant tornado parameter: 2.4
Supercell composite: 10.6

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 Jan 29, 10:54 AM CST, 48 minutes earlier.

Area forecast discussion, Jan 29, 10:54 AM CST, 48 minutes before

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Hazardous weather outlook, Jan 29, 5:18 AM CST, 6 hours 24 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
518 AM CST TUE JAN 29 2013

OKZ004>048-050>052-TXZ083>090-301130-
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-
518 AM CST TUE JAN 29 2013

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

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

THUNDERSTORM OUTLOOK...
THERE IS A RISK OF SEVERE THUNDERSTORMS ACROSS OKLAHOMA AND
WESTERN NORTH TEXAS.

LOCATION...
THE RISK FOR SEVERE STORMS WILL GENERALLY BE NEAR AND EAST OF A
LINE EXTENDING FROM SEYMOUR TEXAS...TO HOBART AND CLINTON...TO
MEDFORD OKLAHOMA.

TIMING...
THE MOST LIKELY TIME FOR SEVERE STORMS WILL BE EARLY THIS MORNING
THROUGH NOON. THE THREAT WILL SPREAD FROM WEST TO EAST THROUGH
THE MORNING HOURS.

IMPACTS...
THE MAIN IMPACTS WILL BE HAIL TO THE SIZE OF PING-PONG
BALLS AND DAMAGING WIND GUSTS OF 65 MPH OR GREATER...ALTHOUGH
TORNADOES CANNOT BE RULED OUT.

DISCUSSION...
VERY MOIST CONDITIONS WILL CONTINUE ACROSS MOST OF THE REGION
THROUGH EARLY THIS AFTERNOON. THUNDERSTORMS WILL CONTINUE TO
DEVELOP THROUGH THIS MORNING OVER CENTRAL AND SOUTHWESTERN
OKLAHOMA...AND MOVE EAST AND NORTHEAST AS A STRONG UPPER LEVEL
STORM SYSTEM PASSES OVER THE ROCKIES. A FEW STORMS MAY ALSO
IMPACT WESTERN NORTH TEXAS EARLY THIS MORNING. THE THREAT OF
SEVERE WEATHER MAY CONTINUE ACROSS EASTERN OKLAHOMA THIS
AFTERNOON.

THE MAIN HAZARDS WITH ANY SEVERE STORM THROUGH EARLY THIS
AFTERNOON WILL BE DAMAGING WINDS AND HAIL UP TO THE SIZE OF PING
PONG BALLS.

PROBABILITY TABLE...
VALID THROUGH 700 AM CST WEDNESDAY JAN 30.
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...
VERY HIGH TO EXTREME WILDFIRE CONDITIONS ARE EXPECTED ACROSS SOUTHWESTERN
OKLAHOMA AND WESTERN NORTH TEXAS THIS AFTERNOON DUE TO A COMBINATION OF
VERY STRONG WINDS...VERY HIGH FIRE DANGER...AND LOW RELATIVE HUMIDITY.
A RED FLAG WARNING IS IN NOW IN EFFECT. A WIND ADVISORY IS ALSO IN
EFFECT FOR THE SAME REGION FOR STRONG SOUTHWESTERLY WINDS.

AS THE UPPER STORM SYSTEM MOVES OVER THE REGION THIS EVENING AND
OVERNIGHT...RAIN SHOWERS WILL LIKELY SWITCH TO SNOW ACROSS PORTIONS
OF NORTHERN OKLAHOMA DUE TO INCREASING DEPTH OF COLD AIR. IT APPEARS
THAT LIGHT ACCUMULATIONS AROUND AN INCH OR SO WILL BE POSSIBLE
NEAR AND NORTH OF ARNETT...FAIRVIEW...AND MEDFORD.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

THUNDERSTORM OUTLOOK...
ISOLATED THUNDERSTORMS APPEAR POSSIBLE EARLY NEXT WEEK.

OTHER HAZARDOUS WEATHER...
NONE.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE AROUND NOON TODAY.
UPDATES WILL BE POSSIBLE BEFORE THEN AS NEW DATA BECOMES
AVAILABLE.

In the hours before

Special weather statement, Jan 29, 10:15 AM CST, 1 hour 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1015 AM CST TUE JAN 29 2013

OKZ020-025-026-029-030-291700-
LINCOLN OK-OKLAHOMA OK-PAYNE OK-CLEVELAND OK-POTTAWATOMIE OK-
1015 AM CST TUE JAN 29 2013

...SIGNIFICANT WEATHER ADVISORY FOR LINCOLN...SOUTHEASTERN
OKLAHOMA...EASTERN PAYNE...NORTHEASTERN CLEVELAND AND NORTHERN
POTTAWATOMIE COUNTIES UNTIL 1100 AM CST...

AT 1008 AM CST...A CLUSTER OF STRONG THUNDERSTORMS EXTENDED FROM
NEAR STANDLEY DRAPER LAKE...NORTHEASTWARD TO NEAR
NEWALLA...CHANDLER...AND CUSHING. INDIVIDUAL STORMS WERE MOVING
NORTHEASTWARD AT 55 TO 60 MPH...WHILE THE COMPLEX WAS MOVING
EASTWARD AT AROUND 25 TO 30 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 40 MPH...
LOCALLY HEAVY RAINFALL THAT MAY LEAD TO LOCALIZED FLOODING...

LOCATIONS IMPACTED INCLUDE...
SHAWNEE...STELLA...CHOCTAW...CUSHING...TECUMSEH...HARRAH...MCLOUD...
CHANDLER...STROUD...YALE...PINK...MEEKER...DAVENPORT...WELLSTON...
CARNEY...TRYON...RIPLEY...AGRA...WARWICK AND JOHNSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3541 9674 3541 9677 3536 9677 3525 9684
      3525 9747 3618 9682 3616 9682 3616 9663
      3588 9662 3559 9662
TIME...MOT...LOC 1608Z 209DEG 78KT 3557 9703

AUSTIN

Special weather statement, Jan 29, 10:21 AM CST, 1 hour 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1021 AM CST TUE JAN 29 2013

OKZ044-045-TXZ090-291645-
COTTON OK-JEFFERSON OK-CLAY TX-
1021 AM CST TUE JAN 29 2013

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN COTTON...
NORTHWESTERN JEFFERSON AND NORTH CENTRAL CLAY COUNTIES UNTIL 1045 AM
CST...

AT 1018 AM CST...A STRONG THUNDERSTORM WAS LOCATED NEAR PETROLIA...
MOVING NORTHEAST AT 40 MPH.

HAZARDS INCLUDE...
HAIL UP TO ONE-HALF INCH DIAMETER...
WIND GUSTS TO 50 MPH...

LOCATIONS IMPACTED INCLUDE...
WAURIKA...PETROLIA...BYERS...HASTINGS...ADDINGTON AND WAURIKA LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3401 9832 3429 9812 3429 9781 3394 9819
TIME...MOT...LOC 1618Z 212DEG 54KT 3402 9821

KURTZ

Special weather statement, Jan 29, 10:35 AM CST, 1 hour 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1035 AM CST TUE JAN 29 2013

OKZ043-047-048-050-051-291700-
MARSHALL OK-JOHNSTON OK-ATOKA OK-LOVE OK-COAL OK-
1035 AM CST TUE JAN 29 2013

...SIGNIFICANT WEATHER ADVISORY FOR MARSHALL...JOHNSTON...WEST
CENTRAL ATOKA...EASTERN LOVE AND SOUTHWESTERN COAL COUNTIES UNTIL
1100 AM CST...

AT 1031 AM CST...TWO STRONG THUNDERSTORMS WERE LOCATED NEAR
LEBANON AND MANNSVILLE...MOVING NORTHEAST AT 65 MPH.

HAZARDS INCLUDE...
HAIL UP TO ONE-HALF INCH DIAMETER...
WIND GUSTS TO 40 MPH...

LOCATIONS IMPACTED INCLUDE...
MADILL...TISHOMINGO...MANNSVILLE...LEBANON...AND PONTOTOC.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3387 9680 3386 9688 3396 9691 3395 9700
      3387 9700 3392 9718 3407 9710 3408 9697
      3417 9697 3417 9693 3433 9693 3434 9688
      3451 9687 3450 9651 3454 9651 3445 9627
      3411 9653 3411 9658 3407 9656 3382 9676
TIME...MOT...LOC 1631Z 212DEG 55KT 3416 9684

AUSTIN

Special weather statement, Jan 29, 10:49 AM CST, 53 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1049 AM CST TUE JAN 29 2013

OKZ020-026-030-031-291730-
LINCOLN OK-SEMINOLE OK-PAYNE OK-POTTAWATOMIE OK-
1049 AM CST TUE JAN 29 2013

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN LINCOLN...
NORTHWESTERN SEMINOLE...SOUTHEASTERN PAYNE AND NORTHEASTERN
POTTAWATOMIE COUNTIES UNTIL 1130 AM CST...

AT 1045 AM CST...A LINE OF STRONG THUNDERSTORMS EXTENDED FROM NEAR
STROUD SOUTH AND WEST TO NEAR SPARKS...MEEKER...AND SHAWNEE...STORMS
WITHIN THIS LINE WERE RACING NORTHEASTWARD AT AROUND 60 MPH...WHILE
THE OVERALL LINE WAS MOVING EAST AT AROUND 30 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 40 MPH...
LOCALLY HEAVY RAINFALL THAT MAY PRODUCE LOCALIZED FLOODING.

LOCATIONS IMPACTED INCLUDE...
SHAWNEE...CUSHING...TECUMSEH...CHANDLER...STROUD...PRAGUE...MEEKER...
DAVENPORT...EARLSBORO...JOHNSON...KENDRICK...SPARKS...BROOKSVILLE...
MACOMB...AVERY...BETHEL ACRES...HARJO...CENTERVIEW AND AYDELOTTE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3512 9683 3512 9714 3609 9674 3609 9662
      3542 9662
TIME...MOT...LOC 1645Z 212DEG 55KT 3561 9680

AUSTIN

Special weather statement, Jan 29, 10:54 AM CST, 48 minutes before

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Special weather statement, Jan 29, 11:26 AM CST, 16 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
Jan 29, 3:08 AM CST	Wind Advisory	OUN	Comanche, Cotton, Greer, Harmon, Jackson, Kiowa and 1 more	15 hr
Jan 29, 3:14 AM CST	Red Flag Warning	OUN	Comanche, Cotton, Greer, Harmon, Jackson, Kiowa and 1 more	11 hr
Jan 29, 4:48 AM CST	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Custer, Washita	42 min
Jan 29, 5:18 AM CST	Special Weather Statement	OUN	Kingfisher	27 min
Jan 29, 5:30 AM CST	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Custer, Kingfisher, Washita	45 min
Jan 29, 5:43 AM CST	Special Weather Statement	OUN	Garfield	32 min
Jan 29, 5:55 AM CST	Special Weather Statement	OUN	Kay	20 min
Jan 29, 6:11 AM CST	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay, Noble	64 min
Jan 29, 6:14 AM CST	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher, Logan, Noble, Payne	61 min
Jan 29, 7:16 AM CST	Severe Thunderstorm Warning	OUN	Noble, Payne	14 min
Jan 29, 8:07 AM CST	Special Weather Statement	OUN	Comanche, Cotton	23 min
Jan 29, 8:40 AM CST	Special Weather Statement	OUN	Comanche, Cotton, Grady	35 min
Jan 29, 9:03 AM CST	Special Weather Statement	OUN	Grady, Oklahoma	27 min
Jan 29, 9:11 AM CST	Severe Thunderstorm Warning	OUN	Lincoln, Logan, Oklahoma, Payne	34 min
Jan 29, 9:19 AM CST	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Grady, Lincoln, Logan, McClain and 1 more	41 min
Jan 29, 9:20 AM CST	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Stephens	40 min
Jan 29, 9:34 AM CST	Areal Flood Advisory	OUN	Oklahoma	116 min
Jan 29, 10:04 AM CST	Areal Flood Advisory	OUN	Lincoln, Payne	116 min
Jan 29, 10:15 AM CST	Special Weather Statement	OUN	Lincoln	45 min
Jan 29, 10:21 AM CST	Special Weather Statement	OUN	Jefferson	24 min
Jan 29, 10:35 AM CST	Special Weather Statement	OUN	Johnston, Marshall	25 min
Jan 29, 10:49 AM CST	Special Weather Statement	OUN	Lincoln, Pottawatomie	41 min
Jan 29, 10:51 AM CST	Severe Thunderstorm Warning	OUN	Garvin, Stephens	24 min
Jan 29, 10:54 AM CST	Special Weather Statement	OUN	Coal, Johnston	36 min
Jan 29, 11:26 AM CST	Special Weather Statement	OUN	Jefferson, Stephens	34 min
Jan 29, 3:18 PM CST	Special Weather Statement	OUN	Bryan	27 min

Nearby

Severe Thunderstorm Warnings in Texas, 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.