Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 310, NWS Shreveport, LA

May 13, 20085 counties in Texas

NWS Shreveport, LA issued this severe thunderstorm warning at May 13, 2008, 5:10 PM CDT for 5 counties in Texas. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 13, 2008, 5:10 PM CDT (22:10 UTC)
Expired
May 13, 2008, 6:15 PM CDT
In force
65 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon

Counties Cherokee County, TX, Gregg County, TX, Rusk County, TX, Smith County, TX, Upshur County, TX

The radar

The Shreveport radar (KSHV), 131 km from the middle of the area, began a volume at 22:12 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

Shreveport, LA (KSHV), launched 12:00Z, 10.2 hours before the alert went out and 140 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, Shreveport, LA at 12:00Z on 2008-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLLFCEL10008507005003002001001 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, Shreveport, LA at 12:00Z on 2008-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 square meters per square second.193958Sfc1 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
5 J/kg
Mixed-layer CIN
-568 J/kg
Mixed-layer LCL
554 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KSHV 132213
SVRSHV
TXC073-183-401-423-459-132315-
/O.NEW.KSHV.SV.W.0310.080513T2210Z-080513T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
510 PM CDT TUE MAY 13 2008

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN CHEROKEE COUNTY IN NORTHEAST TEXAS...
  SOUTHWESTERN GREGG COUNTY IN NORTHEAST TEXAS...
  THIS INCLUDES THE CITIES OF...KILGORE...GLADEWATER...
  WESTERN RUSK COUNTY IN NORTHEAST TEXAS...
  SMITH COUNTY IN NORTHEAST TEXAS...
  THIS INCLUDES THE CITIES OF...WHITEHOUSE...TYLER...
  SOUTHWESTERN UPSHUR COUNTY IN NORTHEAST TEXAS...

* UNTIL 615 PM CDT

* AT 507 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL. ALTHOUGH 
  SEVERAL AREAS WITHIN THIS LARGE STORM MAY BE CAPABLE OF PRODUCING 
  HAIL...THE STRONGEST AREA APPEARS TO BE WEST OF TYLER...NEAR 
  INTERSTATE 20. STORMS WERE MOVING TO THE EAST NORTHEAST AROUND 30 MPH.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

LAT...LON 3185 9478 3217 9548 3224 9550 3235 9546
      3244 9557 3247 9557 3257 9521 3255 9518
      3259 9515 3265 9491
TIME...MOT...LOC 2210Z 255DEG 30KT 3237 9558

$$

VII
1 follow-up statement
000 
WWUS54 KSHV 132238
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
538 PM CDT TUE MAY 13 2008

TXC073-401-132248-
/O.CAN.KSHV.SV.W.0310.000000T0000Z-080513T2315Z/
RUSK TX-CHEROKEE TX-
538 PM CDT TUE MAY 13 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CHEROKEE AND
WESTERN RUSK COUNTIES IS CANCELLED...

LAT...LON 3217 9548 3224 9550 3235 9546 3247 9557
      3256 9526 3255 9518 3259 9515 3265 9491
      3237 9486 3236 9498 3215 9499 3214 9541
TIME...MOT...LOC 2238Z 255DEG 30KT 3243 9531

$$

TXC183-423-459-132315-
/O.CON.KSHV.SV.W.0310.000000T0000Z-080513T2315Z/
UPSHUR TX-SMITH TX-GREGG TX-
538 PM CDT TUE MAY 13 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR SOUTHWESTERN GREGG...SMITH AND SOUTHWESTERN UPSHUR COUNTIES...

AT 536 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL. 
THIS STORM WAS LOCATED 7 MILES NORTH OF TYLER...MOVING EAST AT 34
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WHITEHOUSE...RED SPRINGS...NEW CHAPEL HILL...WINONA...ARP...BIG
SANDY...LIBERTY CITY...WEST MOUNTAIN...WARREN CITY...UNION GROVE...
GLADEWATER AND CLARKSVILLE CITY

LAT...LON 3217 9548 3224 9550 3235 9546 3247 9557
      3256 9526 3255 9518 3259 9515 3265 9491
      3237 9486 3236 9498 3215 9499 3214 9541
TIME...MOT...LOC 2238Z 255DEG 30KT 3243 9531

$$

VII

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 13, 6:44 PM CDTSevere Thunderstorm WarningSHVPanola31 min
May 13, 6:56 PM CDTSevere Thunderstorm WarningSHVGregg, Harrison34 min

Nearby

Severe Thunderstorm Warnings in Texas, 2008Every severe thunderstorm warning in 2008

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.