Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 100, NWS Shreveport, LA

May 30, 2001Claiborne Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at May 30, 2001, 9:24 PM CDT for Claiborne Parish, Louisiana. It was in force for 51 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 30, 2001, 9:24 PM CDT (02:24 UTC)
Expired: May 30, 2001, 10:15 PM CDT
In force: 51 min
Issued by: NWS Shreveport, LA
Area: Whole counties

County Claiborne Parish, LA

The radar

The Shreveport radar (KSHV), 89 km from the middle of the area, began a volume at 02:25 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, 2.4 hours before the alert went out and 80 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: 3712 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1261 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 10.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 30, 7:45 PM CDT, 1 hour 39 minutes earlier.

Area forecast discussion, May 30, 7:45 PM CDT, 1 hour 39 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
745 PM CDT WED MAY 30 2001

SENT OUT EARLY UPDATE FOR THE TORNADO WATCH FOR NEVADA...
COLUMBIA...AND UNION COUNTIES IN ARKANSAS.

2k0

.SHV...NONE.

In the hours before

Local storm report, May 30, 5:45 PM CDT, 3 hours 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
545 PM CDT WED MAY 30 2001

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

0535 PM    GILLHAM                   AR   .75 INCH HAIL
05/30/01   SEVIER                         DIME SIZE HAIL. REPORTED
                                          BY LAW ENFORCEMENT.

Local storm report, May 30, 6:20 PM CDT, 3 hours 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
620 PM CDT WED MAY 30 2001

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

0558 PM    GILLHAM                   AR   1.75 INCH HAIL
05/30/01   SEVIER                         GOLFBALL SIZE HAIL.
                                          REPORTED BY THE GENERAL
                                    X      PUBLIC.

Local storm report, May 30, 6:40 PM CDT, 2 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
640 PM CDT WED MAY 30 2001

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

0635 PM    4 NW CORINTH              AR   WIND DAMAGE
05/30/01   HOWARD                         TREES DOWN 4 MILES NORTH
                                          OF THE INTERSECTION OF HWY
                                          369 AND 26. REPORTED BY LAW
                                          ENFORCEMENT.

Local storm report, May 30, 7:55 PM CDT, 1 hour 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
755 PM CDT WED MAY 30 2001

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH/COUNTY LOCATI9ON....

0750 PM    CROSSROADS                AR   2 INCH HAIL
05/30/01   HEMPSTEAD                      REPORTED BY LAW
                                          ENFORCEMENT.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 12:30 AM CDT	Severe Thunderstorm Warning	SHV	Cass	30 min
May 31, 5:33 AM CDT	Severe Thunderstorm Warning	SHV	Gregg, Harrison	57 min
May 30, 9:39 PM CDT	Severe Thunderstorm Warning	SHV	Union	51 min
May 30, 10:29 PM CDT	Severe Thunderstorm Warning	SHV	Union	46 min
May 31, 5:40 AM CDT	Severe Thunderstorm Warning	SHV	Bossier, Caddo, De Soto	65 min
May 31, 6:17 AM CDT	Severe Thunderstorm Warning	SHV	Bienville, Claiborne, Webster	58 min
May 30, 7:36 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead	54 min
May 31, 1:35 AM CDT	Severe Thunderstorm Warning	SHV	Hempstead	55 min
May 31, 1:40 AM CDT	Severe Thunderstorm Warning	SHV	Union	65 min
May 31, 1:48 AM CDT	Severe Thunderstorm Warning	SHV	Nevada	57 min
May 31, 3:41 AM CDT	Severe Thunderstorm Warning	SHV	Columbia	64 min
May 31, 4:45 AM CDT	Flash Flood Warning	SHV	Columbia, Union	6 hr

Nearby

Severe Thunderstorm Warnings in Louisiana, 2001 Every 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; radar from the NEXRAD Level II archive.