Alert archive / Louisiana / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 376, NWS Shreveport, LA

June 17, 2008Sabine Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Jun 17, 2008, 4:25 PM CDT for Sabine Parish, Louisiana. 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 counties it named.

The facts

Issued: Jun 17, 2008, 4:25 PM CDT (21:25 UTC)
Expired: Jun 17, 2008, 5:30 PM CDT
In force: 65 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon

County Sabine Parish, LA

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 9.4 hours before the alert went out and 104 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: 1234 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 847 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -18 m²/s²
0-3 km storm-relative helicity: 122 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 Jun 17, 3:28 PM CDT, 57 minutes earlier.

Area forecast discussion, Jun 17, 3:28 PM CDT, 57 minutes before

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Hazardous weather outlook, Jun 17, 12:07 PM CDT, 4 hours 18 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1207 PM CDT TUE JUN 17 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>167-181715-
SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE-
COLUMBIA-UNION AR-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN-
UNION LA-DE SOTO-RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE LA-
NATCHITOCHES-WINN-GRANT-CALDWELL-LA SALLE-MCCURTAIN-BOWIE-
FRANKLIN-TITUS-CAMP-MORRIS-CASS-WOOD-UPSHUR-MARION-SMITH-GREGG-
HARRISON-CHEROKEE-RUSK-PANOLA-NACOGDOCHES-SHELBY-ANGELINA-
SAN AUGUSTINE-SABINE TX-
1207 PM CDT TUE JUN 17 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

A STRONG THUNDERSTORM COMPLEX IS MOVING SOUTHEASTWARD ACROSS
NORTHEAST TEXAS THIS MORNING...AND IS SHOWING SIGNS OF
INTENSIFICATION. THIS COMPLEX WILL AFFECT MOSTLY AFFECT LOCATIONS
TO THE WEST OF A LINE STRETCHING FROM CLARKSVILLE
TEXAS...SHREVEPORT...TO NATCHITOCHES LOUISIANA. DAYTIME HEATING
AND UNSTABLE AIR ACROSS THE AREA WILL ALLOW THESE THUNDERSTORMS TO
CONTINUE TO INTENSIFY. REPORTS HAVE ALREADY BEEN RECEIVED OF
DAMAGING WINDS AND HEAVY RAIN AS THIS THUNDERSTORM COMPLEX MOVED
THROUGH NORTH CENTRAL TEXAS...INCLUDING A 64 MPH WIND GUST AT DFW
AIRPORT AND SEVERAL TREES DOWN.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
ANOTHER ROUND OF THUNDERSTORMS DURING THE EARLY MORNING HOURS OF
WEDNESDAY WILL FOLLOW THE TRACK OF TODAYS THUNDERSTORM
COMPLEX...AFFECTING PORTIONS OF SOUTHEAST OKLAHOMA AND NORTHEAST
TEXAS. THE CHANCE FOR SEVERE WEATHER REMAINS WITH THIS
ACTIVITY...MAINLY DUE TO DAMAGING WINDS AND HEAVY RAIN.

.SPOTTER INFORMATION STATEMENT...

STORM SPOTTER...HAM RADIO OPERATOR...AND EMERGENCY MANAGEMENT
PERSONNEL ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON AND
TONIGHT...MAINLY FOR LOCATIONS NORTHEAST AND EAST CENTRAL
TEXAS...AND POSSIBLY NORTHWEST LOUISIANA.

18

In the hours before

Local storm report, Jun 17, 2:26 PM CDT, 1 hour 59 minutes before

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Local storm report, Jun 17, 2:43 PM CDT, 1 hour 42 minutes before

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Local storm report, Jun 17, 3:31 PM CDT, 54 minutes before

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Local storm report, Jun 17, 3:43 PM CDT, 42 minutes before

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Local storm report, Jun 17, 3:49 PM CDT, 36 minutes before

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Local storm report, Jun 17, 4:09 PM CDT, 16 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 7:46 PM CDT	Special Weather Statement	SHV	Wood	59 min
Jun 17, 12:35 PM CDT	Special Weather Statement	SHV	Camp, Franklin, Gregg, Smith, Upshur, Wood	55 min
Jun 17, 12:50 PM CDT	Severe Thunderstorm Warning	SHV	Franklin, Wood	55 min
Jun 17, 1:23 PM CDT	Severe Thunderstorm Warning	SHV	Smith	67 min
Jun 17, 1:35 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Morris, Titus, Upshur	55 min
Jun 17, 2:03 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Gregg, Rusk	57 min
Jun 17, 2:31 PM CDT	Severe Thunderstorm Warning	SHV	Harrison, Marion	59 min
Jun 17, 2:38 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee	52 min
Jun 17, 2:50 PM CDT	Severe Thunderstorm Warning	SHV	Panola, Rusk	55 min
Jun 17, 3:42 PM CDT	Severe Thunderstorm Warning	SHV	Shelby	48 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2008 Every 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.