Alert archive / Louisiana / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 113, NWS Shreveport, LA

May 3, 2003Claiborne Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at May 3, 2003, 12:08 AM CDT for Claiborne Parish, Louisiana. It was in force for 52 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: May 3, 2003, 12:08 AM CDT (05:08 UTC)
Expired: May 3, 2003, 1:00 AM CDT
In force: 52 min
Issued by: NWS Shreveport, LA
Area: Counties, with a storm outline in the text

County Claiborne Parish, LA

The radar

The Shreveport radar (KSHV), 91 km from the middle of the area, began a volume at 05:08 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, 5.1 hours before the alert went out and 82 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: 1869 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1427 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

699 
WUUS54 KSHV 030508
SVRSHV
LAC027-030600-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1205 AM CDT SAT MAY 3 2003

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

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

* UNTIL 100 AM CDT

* AT 1205 AM CDT...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES WEST OF
  HAYNESVILLE...OR ABOUT 13 MILES EAST OF SPRINGHILL...MOVING EAST AT
  20 MPH.  ANOTHER LARGE SEVERE THUNDERSTORM WAS INDICATED ABOUT 10 MILES 
  SOUTHEAST OF MAGNOLIA...MOVING SOUTH SOUTHEAST NEAR 20 MPH.  THIS STORM 
  MAY AFFECT NORTHERN CLAIBORNE PARISH AS WELL AROUND 1230 AM.  THIS STORM 
  HAS HAD A HISTORY OF PRODUCING SOFTBALL SIZED HAIL JUST EAST OF MAGNOLIA
  AT 1155 PM.

* THESE SEVERE THUNDERSTORMS WILL BE NEAR...
  HAYNESVILLE AT 1220 AM CDT

THIS THUNDERSTORM WILL PRODUCE EXTREMELY LARGE HAIL UP TO THE SIZE OF SOFTBALLS.
IF YOU ARE IN THE PATH OF THESE STORMS...TAKE COVER IMMEDIATELY.

REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE
THUNDERSTORM WARNING FOR...
  CLAIBORNE PARISH IN NORTHWEST LOUISIANA
UNTIL 100 AM CDT.

LAT...LON 3298 9324 3278 9322 3278 9273 3300 9273

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 12:29 AM CDT	Severe Thunderstorm Warning	SHV	Union	61 min
May 3, 12:59 AM CDT	Severe Thunderstorm Warning	SHV	Claiborne	61 min
May 3, 1:15 AM CDT	Severe Thunderstorm Warning	SHV	Lincoln	60 min
May 3, 2:19 AM CDT	Severe Thunderstorm Warning	SHV	Lincoln	41 min
May 3, 3:00 AM CDT	Severe Thunderstorm Warning	SHV	Ouachita	60 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2003 Every severe thunderstorm warning in 2003

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.