Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 21, NWS Fort Worth, TX

February 10, 2013Collin County, Grayson County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Feb 10, 2013, 2:42 AM CST for Collin County, Grayson County, Texas. It was in force for 63 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Feb 10, 2013, 2:42 AM CST (08:42 UTC)
Expired
Feb 10, 2013, 3:45 AM CST
In force
63 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon

Counties Collin County, TX, Grayson County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 109 km from the middle of the area, began a volume at 08:45 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 was reported inside it

TimeReportWhereRemark
Feb 10, 3:00 AM CSTTSTM WND DMG2 N Howe, TXTREES WERE KNOCKED DOWN ON FENCES AND A HAY RING WAS THROWN AROUND IN SOUTH SHERMAN/NORTH HOWE
Feb 10, 3:00 AM CSTTSTM WND DMGLuella, TXMAJOR DAMAGE TO HOUSE ON QUAIL RUN ROAD
Feb 10, 3:02 AM CSTTSTM WND DMGPlano, TXESTIMATED 60+ MPH WINDS IN WEST PLANO. POWER POLES WERE KNOCKED DOWN ON MIDWAY RD NORTH OF PLANO PKWY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Feb 9, 11:37 PM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 8.7 hours before the alert went out and 87 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, Fort Worth, TX at 00:00Z on 2013-02-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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, Fort Worth, TX at 00:00Z on 2013-02-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 728 square meters per square second.1939587897117Sfc1 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
459 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
728 m²/s²
0-3 km storm-relative helicity
777 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

932 
WUUS54 KFWD 100842
SVRFWD
TXC085-181-100945-
/O.NEW.KFWD.SV.W.0021.130210T0842Z-130210T0945Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT WORTH TX
242 AM CST SUN FEB 10 2013

THE NATIONAL WEATHER SERVICE IN FORT WORTH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  COLLIN COUNTY IN NORTH CENTRAL TEXAS...
  SOUTHERN GRAYSON COUNTY IN NORTH CENTRAL TEXAS...

* UNTIL 345 AM CST

* AT 242 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN         
  EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CELINA...MOVING      
  EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LOWRY CROSSING AND WYLIE AROUND 250 AM...
  DORCHESTER AND PRINCETON AROUND 255 AM...
  VAN ALSTYNE...HOWE AND ANNA AROUND 300 AM...
  WHITEWRIGHT AROUND 315 AM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A STRONG BUILDING AND
STAY INSIDE...AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3363 9638 3335 9639 3335 9629 3298 9630
      3299 9684 3340 9684 3342 9686 3342 9693
      3353 9694
TIME...MOT...LOC 0842Z 250DEG 34KT 3339 9676

$$


DUNN
3 follow-up statements
133 
WWUS54 KFWD 100900
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
300 AM CST SUN FEB 10 2013

TXC085-181-100945-
/O.CON.KFWD.SV.W.0021.000000T0000Z-130210T0945Z/
GRAYSON TX-COLLIN TX-
300 AM CST SUN FEB 10 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM CST
FOR COLLIN AND SOUTHEASTERN GRAYSON COUNTIES...

AT 300 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM LUELLA TO 4 MILES EAST OF VAN ALSTYNE TO MELISSA TO FRISCO...
MOVING EAST AT 50 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  WHITEWRIGHT...WESTMINSTER...PARKER AND MURPHY AROUND 305 AM CST...
  ST. PAUL...NEW HOPE...LUCAS AND FAIRVIEW AROUND 310 AM CST...
  WYLIE AND LOWRY CROSSING AROUND 315 AM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 AM CST SUNDAY MORNING FOR
EASTERN TEXAS.

&&

LAT...LON 3335 9639 3335 9629 3298 9630 3299 9684
      3338 9684 3349 9680 3358 9669 3363 9638
TIME...MOT...LOC 0900Z 249DEG 45KT 3360 9655 3345 9647
          3328 9659 3311 9678

$$
936 
WWUS54 KFWD 100922
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
322 AM CST SUN FEB 10 2013

TXC085-181-100945-
/O.CON.KFWD.SV.W.0021.000000T0000Z-130210T0945Z/
GRAYSON TX-COLLIN TX-
322 AM CST SUN FEB 10 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM CST
FOR EASTERN COLLIN AND SOUTHEASTERN GRAYSON COUNTIES...

AT 322 AM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 8 MILES SOUTHEAST OF WHITEWRIGHT TO PRINCETON TO MURPHY...MOVING
EAST AT 45 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  FARMERSVILLE AND LAVON AROUND 330 AM CST...
  NEVADA AROUND 335 AM CST...
  JOSEPHINE AROUND 340 AM CST...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS CONTAIN FREQUENT LIGHTNING.

&&

LAT...LON 3363 9638 3335 9639 3335 9629 3334 9629
      3298 9630 3299 9668 3324 9665 3344 9653
TIME...MOT...LOC 0922Z 267DEG 39KT 3344 9626 3319 9649
          3299 9654

$$
795 
WWUS54 KFWD 100940
SVSFWD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FORT WORTH TX
340 AM CST SUN FEB 10 2013

TXC085-181-100951-
/O.EXP.KFWD.SV.W.0021.000000T0000Z-130210T0945Z/
GRAYSON TX-COLLIN TX-
340 AM CST SUN FEB 10 2013

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN COLLIN AND
SOUTHEASTERN GRAYSON COUNTIES EXPIRES AT 345 AM CST...

AT 341 AM CST THE SEVERE THUNDERSTORM THAT PROMPTED THE WARNING MOVED
OUT OF THE AREA AND THE WARNING EXPIRED.

RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS WERE
STILL POSSIBLE FROM THE THUNDERSTORM.

LAT...LON 3363 9638 3335 9639 3335 9629 3334 9629
      3298 9630 3299 9668 3324 9665 3344 9653
TIME...MOT...LOC 0941Z 267DEG 39KT 3345 9601 3320 9624
          3300 9630

$$

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 10, 12:12 AM CSTSevere Thunderstorm WarningFWDEastland, Stephens48 min
Feb 10, 12:30 AM CSTSevere Thunderstorm WarningFWDComanche, Eastland45 min
Feb 10, 12:40 AM CSTSevere Thunderstorm WarningFWDPalo Pinto65 min
Feb 10, 12:59 AM CSTSpecial Weather StatementFWDJack31 min
Feb 10, 1:13 AM CSTSevere Thunderstorm WarningFWDComanche, Eastland, Erath62 min
Feb 10, 1:24 AM CSTSevere Thunderstorm WarningFWDParker66 min
Feb 10, 1:56 AM CSTSevere Thunderstorm WarningFWDErath, Hood, Somervell64 min
Feb 10, 2:03 AM CSTSevere Thunderstorm WarningFWDTarrant57 min
Feb 10, 2:10 AM CSTSevere Thunderstorm WarningFWDComanche, Hamilton, Mills65 min
Feb 10, 2:27 AM CSTSevere Thunderstorm WarningFWDJohnson63 min
Feb 10, 2:30 AM CSTSevere Thunderstorm WarningFWDDenton45 min
Feb 10, 2:46 AM CSTSevere Thunderstorm WarningFWDBell59 min
Feb 10, 2:51 AM CSTSevere Thunderstorm WarningFWDFalls, McLennan54 min
Feb 10, 2:54 AM CSTSevere Thunderstorm WarningFWDDallas, Tarrant66 min
Feb 10, 3:26 AM CSTSevere Thunderstorm WarningFWDRockwall34 min
Feb 10, 3:37 AM CSTSevere Thunderstorm WarningFWDHunt53 min
Feb 10, 3:43 AM CSTSevere Thunderstorm WarningFWDFalls62 min
Feb 10, 3:47 AM CSTSevere Thunderstorm WarningFWDKaufman58 min
Feb 10, 3:52 AM CSTSpecial Weather StatementFWDHenderson, Navarro53 min
Feb 10, 3:55 AM CSTSevere Thunderstorm WarningFWDBell, Milam50 min
Feb 10, 4:22 AM CSTSpecial Weather StatementFWDLimestone23 min
Feb 10, 4:26 AM CSTSevere Thunderstorm WarningFWDLimestone64 min
Feb 10, 4:38 AM CSTSevere Thunderstorm WarningFWDFalls, Milam67 min
Feb 10, 5:00 AM CSTSpecial Weather StatementFWDAnderson30 min
Feb 10, 5:23 AM CSTSpecial Weather StatementFWDLimestone37 min
Feb 10, 5:26 AM CSTSpecial Weather StatementFWDAnderson34 min
Feb 10, 5:41 AM CSTTornado WarningFWDFreestone, Leon, Limestone49 min
Feb 10, 6:02 AM CSTSpecial Weather StatementFWDAnderson28 min

Nearby

Severe Thunderstorm Warnings in Texas, 2013Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.