Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 67, NWS Shreveport, LA

May 7, 2001Caddo Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at May 7, 2001, 12:03 AM CDT for Caddo Parish, Louisiana. It was in force for 57 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 7, 2001, 12:03 AM CDT (05:03 UTC)
Expired
May 7, 2001, 1:00 AM CDT
In force
57 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County Caddo Parish, LA

The watch it was issued in

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

IssuedProductOfficeLasted
May 6, 9:00 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 5.1 hours before the alert went out and 17 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 2001-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2500 joules per kilogram.LCLEL10008507005003002001001 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 2001-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
2500 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1049 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.9
Supercell composite
6.4

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KSHV 070504
SVRSHV
LAC017-070600-
/NEW.KSHV.SV.W.0080.070503-070600/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1203 AM CDT MON MAY 7 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CADDO PARISH IN NORTHWEST LOUISIANA

* UNTIL 100 AM CDT

* AT 1203 AM CDT...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED A SEVERE THUNDERSTORM OVER OIL CITY...OR ABOUT 6
  MILES SOUTH OF VIVIAN...MOVING SOUTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  7 MILES NORTHEAST OF BLANCHARD AT 1220 AM CDT
   
REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE 
TH>UNDERSTORM WARNING FOR...
  CADDO PARISH IN NORTHWEST LOUISIANA
UNTIL 100 AM CDT.

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 6, 9:56 PM CDT, 2 hours 7 minutes earlier.

Area forecast discussion, May 6, 9:56 PM CDT, 2 hours 7 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
955 PM CDT PM CDT SUN MAY 6 2001

UPDATED ZONES TO INCLUDE MENTION OF POSSIBLE SEVERE.
NO OTHER CHANGES MADE.

06

.SHV...NONE.

In the hours before

Local storm report, May 6, 6:49 PM CDT, 5 hours 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT, LA
649 PM CDT SUN MAY 6 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0630 PM    SUTTON                    AR   1.75 INCH HAIL
05/06/01   NEVADA                         REPORTED BY LAW
                                          ENFORCEMENT

0635 PM    5 S PRESCOTT              AR   1.00 INCH HAIL
05/06/01   ~NEVADA                         REPORTED BY LAW
                                          ENFORCEMENT
Local storm report, May 6, 7:35 PM CDT, 4 hours 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT, LA
735 PM CDT SUN MAY 6 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0630 PM    SUTTON                    AR   1.75 INCH HAIL
05/06/01   NEVADA                         REPORTED BY LAW
                                          ENFORCEMENT

0635 PM    5 S PRESCOTT              AR   1.00 INCH HAIL
05/06/01   NEVADA                         REPORTED BY LAW
                                          ENFORCEMENT

0725 PM    LANEBURG                  AR   .75 INCH HAIL
05/06/01   NEVADA                         REPORTED BY LAW
                                          ENFORCEMENT
Local storm report, May 6, 9:43 PM CDT, 2 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT, LA
943 PM CDT SUN MAY 6 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0630 PM    SUTTON                    AR   1.75 INCH HAIL
05/06/01   NEVADA                         REPORTED BY LAW
                                          ENFORCEMENT

0635 PM    5 S PRESCOTT              AR   1.00 INCH HAIL
05/06/01   NEVADA                         REPORTED BY LAW
                                          ENFORCEMENT

0725 PM    LANEBURG                  AR   .75 INCH HAIL
05/06/01   NEVADA                         REPORTED BY LAW
                                          ENFORCEMENT

0920 PM    RED HILL                  TX   .75 INCH HAIL
05/06/01   CASS                           REPORTED BY TRAINED
                                          SPOTTERS

0933 PM    RED HILL                  TX   .75 INCH HAIL
05/06/01   CASS                           REPORTED BY TRAINED
                                          SPOTTERS
Local storm report, May 6, 10:59 PM CDT, 1 hour 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT, LA
1059 PM CDT SUN MAY 6 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0905 PM    LAKE CHEROKEE             TX   .75 INCH HAIL
05/06/01   GREGG                          REPORTED BY TRAINED
                                          SPOTTERS

0910 PM    5 ENE HALLSVILLE          TX   .75 INCH HAIL
05/06/01   HARRISON                       REPORTED BY TRAINED
                                          SPOTTERS

0945 PM    JEFFERSON                 TX   1.75 INCH HAIL 05/06/01
           MARION                         REPORTED BY KSLA TV

0957 PM    2 SW BOGATA               TX   WIND DAMAGE
05/06/01   RED RIVER                      TREES AND POWER LINES DOWN
                                          REPORTED BY LAW ENFORCEMENT

1020 PM    5 N CLARKSVILLE           TX   WIND DAMAGE
05/06/01   RED RIVER                      TREES AND POWER LINES DOWN
                                          REPORTED BY LAW ENFORCEMENT

1020 PM    3 N STRONG                AR   1.75 INCH HAIL
05/06/01   UNION                          REPORTED BY LAW
                                          ENFORCEMENT

1050 PM    2 N NAPLES                TX   1.00 INCH HAIL
05/06/01   MORRIS              g           REPORTED BY SPOTTERS
Local storm report, May 6, 10:59 PM CDT, 1 hour 4 minutes before
PRELIMINARY LOCAL STORM REPORT...COR ALIGNMENT
NATIONAL WEATHER SERVICE SHREVEPORT, LA
1059 PM CDT SUN MAY 6 2001

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0905 PM    LAKE CHEROKEE             TX   .75 INCH HAIL
05/06/01   GREGG                          REPORTED BY TRAINED
                                          SPOTTERS

0910 PM    5 ENE HALLSVILLE          TX   .75 INCH HAIL
05/06/01   HARRISON                       REPORTED BY TRAINED
                                          SPOTTERS

0945 PM    JEFFERSON                 TX   1.75 INCH HAIL
05/06/01   MARION                         REPORTED BY KSLA TV

0957 PM    2 SW BOGATA               TX   WIND DAMAGE
05/06/01   RED RIVER                      TREES AND POWER LINES DOWN
                                          REPORTED BY LAW ENFORCEMENT

1020 PM    5 N CLARKSVILLE           TX   WIND DAMAGE
05/06/01   RED RIVER                      TREES AND POWER LINES DOWN
                                          REPORTED BY LAW ENFORCEMENT

1020 PM    3 N STRONG                AR   1.75 INCH HAIL
05/06/01   UNION                          REPORTED BY LAW
                                          ENFORCEMENT

1050 PM    2 N NAPLES                TX   1.00 INCH HAIL
05/06/01   MORRIS                         REPORTED BY SPOTTERS

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 6:23 PM CDTSevere Thunderstorm WarningSHVBossier52 min
May 7, 6:30 PM CDTSevere Thunderstorm WarningSHVCaddo60 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2001Every severe thunderstorm warning in 2001

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.