Alert archive / Louisiana / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 142, NWS Shreveport, LA

May 10, 2006Union Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at May 10, 2006, 3:15 PM CDT for Union Parish, Louisiana. It was in force for 60 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
May 10, 2006, 3:15 PM CDT (20:15 UTC)
Expired
May 10, 2006, 4:15 PM CDT
In force
60 min
Issued by
NWS Shreveport, LA
Area
Counties, with a storm outline in the text

County Union Parish, LA

The radar

The Shreveport radar (KSHV), 144 km from the middle of the area, began a volume at 20:18 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
May 10, 1:13 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 8.3 hours before the alert went out and 135 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 2006-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2609 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 2006-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 258 square meters per square second.19395878Sfc1 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
2609 J/kg
Mixed-layer CIN
-194 J/kg
Mixed-layer LCL
528 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
258 m²/s²
0-3 km storm-relative helicity
280 m²/s²
Significant tornado parameter
0.2
Supercell composite
4.9

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 May 10, 9:56 AM CDT, 5 hours 19 minutes earlier.

Area forecast discussion, May 10, 9:56 AM CDT, 5 hours 19 minutes before
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Hazardous weather outlook, May 10, 12:00 PM CDT, 3 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1200 PM CDT WED MAY 10 2006

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-111100-
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 WED MAY 10 2006

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...

A COLD FRONT WAS MOVING SLOWLY THROUGH THE FOUR STATE AREA THIS
AFTERNOON. THE FRONT WAS LOCATED ALONG A LINE FROM JUST SOUTH OF EL
DORADO ARKANSAS...TO SHREVEPORT...TO JACKSONVILLE TEXAS. ALONG AND TO
THE SOUTHEAST OF THIS FRONT...AS IT MOVES SLOWLY SOUTHEAST THIS
AFTERNOON...SCATTERED THUNDERSTORMS MAY FORM...AND MOVE EAST OR
SOUTHEAST...THROUGH THE UNSTABLE AIR MASS AHEAD OF THE FRONT. SOME
OF THE THUNDERSTORMS MAY BECOME SEVERE...PRODUCING LARGE HAIL AND
DAMAGING WINDS. A FEW TORNADOES COULD ALSO OCCUR IN NORTH CENTRAL
LOUISIANA FROM THE MIDDLE OF THE AFTERNOON...INTO THE EARLY EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF EMERGENCY MANAGERS...SKYWARN NETWORKS...AND STORM
SPOTTERS MAY BE NEEDED THIS AFTERNOON AND EVENING.

03

In the hours before

Local storm report, May 10, 10:21 AM CDT, 4 hours 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1021 AM CDT WED MAY 10 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0945 AM     TSTM WND DMG     PRESCOTT                33.80N 93.39W
05/10/2006                   NEVADA             AR   LAW ENFORCEMENT

            TREES AND POWERLINES DOWN.

&&

MF
Local storm report, May 10, 10:30 AM CDT, 4 hours 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1030 AM CDT WED MAY 10 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0820 AM     HAIL             5 SW HORATIO            33.89N 94.42W
05/10/2006  E0.88 INCH       LITTLE RIVER       AR   TRAINED SPOTTER

&&

MF

The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 10:07 PM CDTSevere Thunderstorm WarningSHVRed River53 min
May 9, 10:40 PM CDTTornado WarningSHVRed River65 min
May 9, 11:32 PM CDTSevere Thunderstorm WarningSHVBowie58 min
May 9, 11:41 PM CDTTornado WarningSHVRed River34 min
May 10, 12:23 AM CDTSevere Thunderstorm WarningSHVRed River50 min
May 10, 12:29 AM CDTSevere Thunderstorm WarningSHVBowie61 min
May 10, 4:37 AM CDTSevere Thunderstorm WarningSHVRed River53 min
May 10, 7:26 AM CDTSevere Thunderstorm WarningSHVRed River64 min
May 10, 8:31 AM CDTSevere Thunderstorm WarningSHVRed River26 min
May 10, 2:37 PM CDTSevere Thunderstorm WarningSHVNacogdoches38 min
May 10, 2:58 PM CDTSevere Thunderstorm WarningSHVShelby47 min
May 10, 3:19 PM CDTSevere Thunderstorm WarningSHVSan Augustine41 min
May 10, 3:46 PM CDTSevere Thunderstorm WarningSHVSabine59 min
May 10, 4:04 PM CDTSevere Thunderstorm WarningSHVSan Augustine26 min
May 10, 4:26 PM CDTTornado WarningSHVSan Augustine34 min
May 10, 4:30 PM CDTTornado WarningSHVSabine30 min
May 10, 3:29 PM CDTSevere Thunderstorm WarningSHVSabine46 min
May 10, 3:56 PM CDTSevere Thunderstorm WarningSHVOuachita34 min
May 10, 4:12 PM CDTSevere Thunderstorm WarningSHVSabine48 min
May 10, 4:27 PM CDTSevere Thunderstorm WarningSHVJackson30 min
May 10, 5:10 PM CDTSevere Thunderstorm WarningSHVNatchitoches31 min
May 9, 10:29 PM CDTSevere Thunderstorm WarningSHVSevier61 min
May 9, 10:48 PM CDTSevere Thunderstorm WarningSHVHoward57 min
May 9, 10:52 PM CDTSevere Thunderstorm WarningSHVLittle River68 min
May 9, 11:19 PM CDTTornado WarningSHVHoward, Sevier41 min
May 9, 11:38 PM CDTSevere Thunderstorm WarningSHVHempstead67 min
May 10, 12:01 AM CDTSevere Thunderstorm WarningSHVLittle River44 min
May 10, 12:27 AM CDTSevere Thunderstorm WarningSHVNevada63 min
May 10, 8:16 AM CDTSevere Thunderstorm WarningSHVSevier59 min
May 10, 8:44 AM CDTSevere Thunderstorm WarningSHVHoward46 min
May 10, 9:01 AM CDTSevere Thunderstorm WarningSHVHempstead29 min
May 10, 9:31 AM CDTSevere Thunderstorm WarningSHVHempstead, Nevada44 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2006Every severe thunderstorm warning in 2006

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.