Alert archive / Louisiana / Special Weather Statements in 2008

Special Weather Statement, NWS Shreveport, LA

August 3, 200810 parishes in Louisiana; Columbia County, Lafayette County, Union County, Arkansas

NWS Shreveport, LA issued this special weather statement at Aug 3, 2008, 1:52 AM CDT for 10 parishes in Louisiana; Columbia County, Lafayette County, Union County, Arkansas. It was in force for 53 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
Aug 3, 2008, 1:52 AM CDT (06:52 UTC)
Expired
Aug 3, 2008, 2:45 AM CDT
In force
53 min
Issued by
NWS Shreveport, LA

Counties Columbia County, AR, Lafayette County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Grant Parish, LA, Natchitoches Parish, LA, Red River Parish, LA, Webster Parish, LA, Winn Parish, LA

The radar

The Shreveport radar (KSHV), 91 km from the middle of the area, began a volume at 07:00 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 00:00Z, 6.9 hours before the alert went out and 85 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 00:00Z on 2008-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 395 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 00:00Z on 2008-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 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
395 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
2937 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 3, 12:23 AM CDT, 1 hour 29 minutes earlier.

Area forecast discussion, Aug 3, 12:23 AM CDT, 1 hour 29 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SHREVEPORT LA
1223 AM CDT SUN AUG 3 2008

...AN UPDATE TO THE FORECAST WILL BE COMING...

.DISCUSSION...
DOING A QUICK UPDATE IN ORDER TO ACCOUNT FOR THE DERECHO HEADING
WEST ACROSS THE MISSISSIPPI RIVER.  NO OTHER CHANGES PLANNED AT THIS
TIME.

ISC GRIDS HAVE BEEN SENT AND POSTED TO THE INTERNET.  AN UPDATED
SUITE OF PRODUCTS WILL BE ISSUED SHORTLY.  /21/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  78 101  76  98  76 /  10  10   0  10  10
MLU  76  99  75  98  73 /  10  10   0  10  10
DEQ  74 102  74 101  72 /  10  10   0   0   0
TXK  78 102  77 100  75 /  10  10   0   0   0
ELD  75 102  75 101  74 /  10  10   0   0   0
TYR  77 100  77  99  76 /  10  10   0  10  10
GGG  76 100  76  98  74 /  10  10   0  10  10
LFK  74  99  74  97  73 /  10  10  10  20  20

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR THE FOLLOWING
     ZONES: ARZ050-051-059>061-070>073.

LA...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR THE FOLLOWING
     ZONES: LAZ001>006-010>014-017>022.

OK...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR THE FOLLOWING
     ZONES: OKZ077.

TX...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR THE FOLLOWING
     ZONES: TXZ096-097-108>112-124>126-136>138-149>153-165>167.

&&

BUTTS
Hazardous weather outlook, Aug 2, 12:00 PM CDT, 13 hours 52 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1200 PM CDT SAT AUG 2 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>167-031100-
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-
1200 PM CDT SAT AUG 2 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...TODAY AND TONIGHT

EXPECT TO SEE TEMPERATURES CLIMB TO 100 TO 105 DEGREES THIS
AFTERNOON. THESE TEMPERATURES WHEN COMBINED WITH THE HUMIDITY WILL
PROVIDE HEAT INDEX VALUES FROM NEAR 105 TO 109 DEGREES. THIS WILL
STRESS ANYONE INVOLVED IN OUTDOOR ACTIVITIES...AND THOSE CONFINED TO
THE INSIDE WITHOUT THE COOLING FROM FANS OR AIR CONDITIONERS.

THE COMBINATION OF HEAT AND HUMIDITY MAY PRODUCE VERY ISOLATED LATE
AFTERNOON THUNDERSTORM ACTIVITY...EAST OF A TEXARKANA TO LUFKIN
LINE. IF ANY THUNDERSTORMS DEVELOP...THEY MAY PRODUCE STRONG GUSTY
WINDS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

THE HEAT WILL STAY WITH THE REGION...AT LEAST THROUGH MONDAY INTO
TUESDAY WITH TRIPLE DIGIT AFTERNOON MAXIMUM TEMPERATURES ONCE AGAIN.
HEAT INDEX VALUES SUNDAY THROUGH TUESDAY WILL AGAIN APPROACH 105
TO 109 DEGREES ACROSS THE REGION.

.SPOTTER INFORMATION STATEMENT...

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

17

In the hours before

Local storm report, Aug 2, 11:15 PM CDT, 2 hours 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1115 PM CDT SAT AUG 02 2008

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

0545 PM     TSTM WND DMG     11 SSW STRONG           32.95N 92.41W
08/02/2008                   UNION              LA   LAW ENFORCEMENT

            TREES WERE BLOWN DOWN IN THE TRUXNO COMMUNITY.

0552 PM     TSTM WND DMG     7 E SPEARSVILLE         32.95N 92.49W
08/02/2008                   UNION              LA   LAW ENFORCEMENT

            TREES WERE BLOWN DOWN IN THE LARAN COMMUNITY.

0630 PM     HAIL             3 NW DOWNSVILLE         32.66N 92.45W
08/02/2008  E1.75 INCH       LINCOLN            LA   LAW ENFORCEMENT

0639 PM     TSTM WND DMG     9 NE RUSTON             32.63N 92.54W
08/02/2008                   LINCOLN            LA   LAW ENFORCEMENT

            TREES AND POWERLINES WERE BLOWN DOWN NEAR THE CEDARTON
            COMMUNITY.

0640 PM     HAIL             4 E GRAMBLING           32.53N 92.64W
08/02/2008  E0.25 INCH       LINCOLN            LA   TRAINED SPOTTER

0642 PM     HAIL             5 ENE GRAMBLING         32.54N 92.62W
08/02/2008  E0.88 INCH       LINCOLN            LA   AMATEUR RADIO

            NICKEL-SIZED HAIL REPORTED IN THE RUSTON WAL-MART PARKING
            LOT.

0648 PM     HAIL             4 ENE GRAMBLING         32.54N 92.64W
08/02/2008  E0.75 INCH       LINCOLN            LA   AMATEUR RADIO

0648 PM     TSTM WND DMG     4 ENE GRAMBLING         32.54N 92.64W
08/02/2008                   LINCOLN            LA   AMATEUR RADIO

            8 INCH DIAMETER TREE LIMBS WERE BLOWN DOWN.

0651 PM     HAIL             4 ENE GRAMBLING         32.54N 92.64W
08/02/2008  E0.88 INCH       LINCOLN            LA   AMATEUR RADIO

0700 PM     TSTM WND DMG     4 E GRAMBLING           32.53N 92.64W
08/02/2008                   LINCOLN            LA   AMATEUR RADIO

            NUMEROUS POWERLINES AND TREE LIMBS WERE BLOWN DOWN.

0703 PM     TSTM WND DMG     4 E GRAMBLING           32.53N 92.64W
08/02/2008                   LINCOLN            LA   AMATEUR RADIO

            A TREE WAS BLOWN DOWN ACROSS US-167 AT EAST CAROLINA
            AVENUE IN RUSTON.

0706 PM     HAIL             4 ENE GRAMBLING         32.54N 92.64W
08/02/2008  E0.88 INCH       LINCOLN            LA   AMATEUR RADIO

            NICKEL-SIZED HAIL ALONG US-167...JUST NORTH OF RUSTON.

0718 PM     TSTM WND DMG     3 SE GRAMBLING          32.50N 92.68W
08/02/2008                   LINCOLN            LA   UTILITY COMPANY

            POWERLINES WERE BLOWN DOWN NEAR THE BARNET SPRINGS
            COMMUNITY.

0721 PM     TSTM WND DMG     11 SSE RUSTON           32.39N 92.57W
08/02/2008                   JACKSON            LA   UTILITY COMPANY

            POWERLINES WERE BLOWN DOWN ACROSS NORTHWEST JACKSON
            PARISH.

0728 PM     TSTM WND DMG     5 E GRAMBLING           32.53N 92.63W
08/02/2008                   LINCOLN            LA   AMATEUR RADIO

            A TREE WAS BLOWN DOWN ON A HOUSE ON EAST MISSISSIPPI
            STREET IN RUSTON.

0747 PM     TSTM WND DMG     4 WSW HAYNESVILLE       32.95N 93.20W
08/02/2008                   CLAIBORNE          LA   LAW ENFORCEMENT

            TREES WERE BLOWN DOWN ALONG CLARENCE-IVORY ROAD.

0748 PM     TSTM WND DMG     4 WSW HAYNESVILLE       32.95N 93.20W
08/02/2008                   CLAIBORNE          LA   UTILITY COMPANY

            POWERLINES WERE BLOWN DOWN IN NORTON CORNER COMMUNITY.

&&

D. BUTTS
Special weather statement, Aug 3, 12:57 AM CDT, 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1257 AM CDT SUN AUG 3 2008

ARZ073-LAZ005-006-013-014-019-021-022-030700-
CALDWELL-JACKSON-LA SALLE-LINCOLN-OUACHITA-UNION-WINN-
1257 AM CDT SUN AUG 3 2008

...SIGNIFICANT WEATHER ALERT FOR HIGH WINDS...

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ALERT...EFFECTIVE UNTIL 200 AM CDT...FOR THE FOLLOWING
COUNTIES AND PARISHES...

IN SOUTH CENTRAL ARKANSAS...
     UNION.

IN NORTH CENTRAL LOUISIANA...
     UNION...LINCOLN...OUACHITA...JACKSON...CALDWELL...WINN AND
     LA SALLE.

INCLUDING THE FOLLOWING LOCATIONS.
     CALION...HUTTIG...STRONG...BROWNSVILLE-BAWCOMVILLE...
     CLAIBORNE...FARMERVILLE...JENA...MONROE...OLLA...RICHWOOD...
     STERLINGTON...SWARTZ AND WEST MONROE.

AT 1240 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG WINDS AHEAD OF A LARGE LINE OF THUNDERSTORMS...KNOWN AS A
GUST FRONT...FROM MONTICELLO TO BASTROP TO 46 MILES SOUTH OF
RAYVILLE TO 87 MILES EAST OF SIMMESPORT.  THE GUST FRONT WAS MOVING
WEST AT 34 MPH.

THE GUST FRONT WILL AFFECT COMMUNITIES BETWEEN EL DORADO ARKANSAS...
TO MONROE LOUISIANA...TO COLUMBIA LOUISIANA AROUND 115 AM.

AS THE GUST FRONT PASSES THROUGH YOUR LOCATION...YOU CAN EXPECT WIND
SPEEDS OF 40 TO 40 MILES AN HOUR.  TEN TO FIFTEEN MINUTES AFTER THE
GUST FRONT PASSES YOUR LOCATION...THUNDERSTORMS COULD BRING WIND
GUSTS IN EXCESS OF 60 MILES AN HOUR...PENNY SIZED HAIL...AND
TORRENTIAL RAINFALL WITHIN A SHORT AMOUNT OF TIME.  RAINFALL AMOUNTS
UP TO 2 INCHES MAY BE SEEN IN AN HOURS TIME.

HIGH WINDS CAN BRING DOWN TREES AND LARGE LIMBS RESULTING IN SERIOUS
INJURY OR PROPERTY DAMAGE. EXERCISE EXTREME CAUTION WHEN OUTDOORS
DURING SUCH STRONG WINDS...AND BE ESPECIALLY AWARE OF OLDER TREES.

STAY TUNED FOR FURTHER UPDATES FROM YOUR NATIONAL WEATHER SERVICE IN
SHREVEPORT.

LAT...LON 3209 9191 3193 9189 3192 9200 3163 9200
      3181 9243 3295 9266 3338 9259 3333 9245
      3328 9242 3330 9233 3327 9222 3321 9220
      3316 9209 3310 9212 3302 9206 3273 9206
      3267 9190 3253 9189 3229 9202 3212 9186
TIME...MOT...LOC 0557Z 105DEG 30KT 3363 9192 3282 9192
          3182 9165 3106 9039

BUTTS
Local storm report, Aug 3, 1:32 AM CDT, 20 minutes before
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Local storm report, Aug 3, 1:47 AM CDT, 5 minutes before
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Special weather statement, Aug 3, 1:52 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 3:47 PM CDTSevere Thunderstorm WarningSHVSabine43 min
Aug 3, 4:29 PM CDTSevere Thunderstorm WarningSHVAngelina, Sabine, San Augustine61 min
Aug 3, 4:44 PM CDTSevere Thunderstorm WarningSHVSabine, San Augustine, Shelby46 min
Aug 3, 5:07 PM CDTSevere Thunderstorm WarningSHVAngelina, Nacogdoches53 min
Aug 3, 6:04 PM CDTSevere Thunderstorm WarningSHVCherokee, Nacogdoches, Rusk56 min
Aug 3, 6:24 PM CDTSevere Thunderstorm WarningSHVPanola, Shelby51 min
Aug 2, 7:04 PM CDTSevere Thunderstorm WarningSHVJackson, Winn41 min
Aug 2, 7:17 PM CDTSevere Thunderstorm WarningSHVJackson, Lincoln28 min
Aug 2, 7:38 PM CDTSevere Thunderstorm WarningSHVBienville, Claiborne, Webster37 min
Aug 3, 12:57 AM CDTSpecial Weather StatementSHVCaldwell, Ouachita, Union63 min
Aug 3, 1:17 AM CDTSevere Thunderstorm WarningSHVCaldwell, LaSalle, Ouachita43 min
Aug 3, 1:41 AM CDTSevere Thunderstorm WarningSHVGrant, Jackson, Lincoln, Winn64 min
Aug 3, 2:22 AM CDTSevere Thunderstorm WarningSHVBienville, Natchitoches53 min

Nearby

Special Weather Statements in Louisiana, 2008Special Weather Statements in Arkansas, 2008Every special weather statement 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.