Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 435, NWS Shreveport, LA

August 3, 20085 counties in Texas

NWS Shreveport, LA issued this severe thunderstorm warning at Aug 3, 2008, 8:51 PM CDT for 5 counties in Texas. It was in force for 24 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
Aug 3, 2008, 8:51 PM CDT (01:51 UTC)
Expired
Aug 3, 2008, 9:15 PM CDT
In force
24 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon

Counties Gregg County, TX, Harrison County, TX, Marion County, TX, Rusk County, TX, Upshur County, TX

The radar

The Shreveport radar (KSHV), 76 km from the middle of the area, began a volume at 01:52 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 watch it was issued in

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

IssuedProductOfficeLasted
Aug 3, 6:44 PM CDTSevere Thunderstorm WatchSPC3 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 1.9 hours before the alert went out and 249 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 2008-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 108 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, Fort Worth, TX at 00:00Z on 2008-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.1939Sfc1 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
108 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
3046 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 3, 6:54 PM CDT, 1 hour 57 minutes earlier.

Area forecast discussion, Aug 3, 6:54 PM CDT, 1 hour 57 minutes before
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Hazardous weather outlook, Aug 3, 12:00 PM CDT, 8 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1200 PM CDT SUN AUG 3 2008

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-041100-
ANGELINA-BIENVILLE-BOSSIER-BOWIE-CADDO-CALDWELL-CAMP-CASS-CHEROKEE-
CLAIBORNE-COLUMBIA-DE SOTO-FRANKLIN-GRANT-GREGG-HARRISON-HEMPSTEAD-
HOWARD-JACKSON-LA SALLE-LAFAYETTE-LINCOLN-LITTLE RIVER-MARION-
MCCURTAIN-MILLER-MORRIS-NACOGDOCHES-NATCHITOCHES-NEVADA-OUACHITA-
PANOLA-RED RIVER LA-RED RIVER TX-RUSK-SABINE LA-SABINE TX-
SAN AUGUSTINE-SEVIER-SHELBY-SMITH-TITUS-UNION AR-UNION LA-UPSHUR-
WEBSTER-WINN-WOOD-
1200 PM CDT SUN AUG 3 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
ARKANSAS...SOUTHWEST ARKANSAS...NORTH CENTRAL LOUISIANA...
NORTHWEST LOUISIANA...SOUTHEAST OKLAHOMA...EAST TEXAS AND
NORTHEAST TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

TEMPERATURES WILL CLIMB TO 102 TO 108 DEGREES THIS AFTERNOON.
COMBINED WITH HIGH HUMIDITIES...THESE TEMPERATURES WILL RESULT IN
HEAT INDICES OF 105 TO 109 DEGREES.  THIS WILL RESULT IN STRESS TO
ANYONE INVOLVED IN OUTDOOR ACTIVITIES...AND THOSE CONFINED INDOORS
WITHOUT FANS OR AIR CONDITIONERS.

IN ADDITION...ISOLATED AFTERNOON THUNDERSTORMS WILL BE POSSIBLE...
MAINLY EAST OF A LUFKIN...TEXAS TO TEXARKANA...ARKANSAS LINE.  ANY
THUNDERSTORMS THAT DO DEVELOP WILL BE ACCOMPANIED BY FREQUENT
LIGHTNING...GUSTY WINDS...AND BRIEF HEAVY RAINFALL.  A FEW
THUNDERSTORMS MAY BECOME SEVERE...WITH DAMAGING WINDS BEING THE
MAIN THREAT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

WARM TEMPERATURES WILL CONTINUE THROUGH MONDAY AND TUESDAY...WITH
TRIPLE DIGIT AFTERNOON TEMPERATURES MOST PLACES ONCE AGAIN.
AFTERNOON HEAT INDICES OF 105 TO 109 DEGREES CAN BE EXPECTED DURING
THE AFTERNOON MONDAY AND TUESDAY.

.SPOTTER INFORMATION STATEMENT...

STORM SPOTTER...HAM RADIO OPERATOR...AND EMERGENCY MANAGEMENT
ACTIVATION SHOULD NOT BE NEEDED THIS AFTERNOON OR TONIGHT.

44

In the hours before

Local storm report, Aug 3, 4:38 PM CDT, 4 hours 13 minutes before
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Local storm report, Aug 3, 5:35 PM CDT, 3 hours 16 minutes before
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Local storm report, Aug 3, 5:40 PM CDT, 3 hours 11 minutes before
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<head>
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  <main class="wrap">
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      <div class="status" id="status">Temporary Notice</div>
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 7:06 PM CDTSevere Thunderstorm WarningSHVGregg, Rusk, Smith24 min
Aug 3, 7:22 PM CDTSevere Thunderstorm WarningSHVHarrison38 min
Aug 3, 7:57 PM CDTSevere Thunderstorm WarningSHVHarrison, Marion, Rusk63 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.