Alert archive / Texas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 42, NWS Shreveport, LA

April 6, 2003Titus County, Texas

NWS Shreveport, LA issued this severe thunderstorm warning at Apr 6, 2003, 1:31 AM CST for Titus County, Texas. It was in force for 119 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: Apr 6, 2003, 1:31 AM CST (07:31 UTC)
Expired: Apr 6, 2003, 4:30 AM CDT
In force: 119 min
Issued by: NWS Shreveport, LA
Area: Counties, with a storm outline in the text

County Titus County, TX

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 5, 9:35 PM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 7.5 hours before the alert went out and 140 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: 34 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 1386 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 185 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.

525 
WUUS54 KSHV 060731
SVRSHV
TXC449-060830-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
130 AM CST SUN APR 6 2003

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TITUS COUNTY IN NORTHEAST TEXAS

* UNTIL 330 AM CDT

* AT 130 AM CST...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED A SEVERE THUNDERSTORM OVER EXTREME EAST CENTRAL
  FRANKLIN COUNTY...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE OVER...
  RURAL WESTERN TITUS COUNTY AT 140 AM CST
  RURAL NORTHERN TITUS COUNTY AT 150 AM CST
  RURAL NORTHEASTERN TITUS COUNTY AT 320 AM CDT

A TORNADO WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES WITH LITTLE OR NO WARNING. BE READY TO ACT QUICKLY.

THIS THUNDERSTORM WILL PRODUCE LARGE HAIL UP TO THE SIZE OF GOLFBALLS
AND STRONG DAMAGING WINDS. DO NOT REMAIN OUTSIDE.

REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE
THUNDERSTORM WARNING FOR...
  TITUS COUNTY IN NORTHEAST TEXAS
UNTIL 330 AM CDT.

LAT...LON 3340 9488 3334 9482 3315 9510 3338 9508

$$

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 Apr 5, 9:50 PM CST, 3 hours 41 minutes earlier.

Area forecast discussion, Apr 5, 9:50 PM CST, 3 hours 41 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
950 PM CST SAT APR 5 2003

QUICK UPDATE FOR TORNADO WATCH ACROSS NORTHEAST TEXAS...MAINLY ALONG
AND NORTH OF INTERSTATE 20.

UPDATE ALREADY OUT.

22

.SHV...NONE.

Hazardous weather outlook, Apr 5, 12:00 PM CST, 13 hours 31 minutes before

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-061100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1200 PM CST SAT APR 5 2003

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

.DAY ONE...TODAY AND TONIGHT...
THERE IS SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT ACROSS MAINLY
THE NORTHWEST SECTIONS OF THE REGION FOR TONIGHT...ALONG AND
NORTHWEST OF INTERSTATE 30.  LARGE HAIL AND DAMAGING WINDS ARE
POSSIBLE AS WELL AS ISOLATED TORNADIC ACTIVITY COULD OCCUR WITH THESE
THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...
THERE WILL BE A MODERATE RISK OF SEVERE THUNDERSTORMS EXPECTED FOR
SUNDAY IN ASSOCIATION WITH A WARM FRONT THAT WILL DRIFT NORTHWARD
ACROSS THE REGION TONIGHT AND UPPER LEVEL DISTURBANCES MOVING ACROSS
THE AREA ON SUNDAY.  THE SEVERE THREAT ON SUNDAY WILL BE THAT OF
LARGE HAIL...DAMAGING WINDS AND POSSIBLE TORNADOES.

.SPOTTER CALL TO ACTION STATEMENT...
ACTIVATION OF EMERGENCY MANAGERS...SKYWARN NETWORKS...AND STORM
SPOTTERS MAY BE NEEDED BY TONIGHT...AND POSSIBLY ONCE AGAIN DURING
THE DAY ON SUNDAY.

20

In the hours before

Local storm report, Apr 6, 12:55 AM CST, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT, LA
1255 AM CST SUN APR 6 2003

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

1212 AM    5 W MOUNT VERNON          TX   1.00 INCH HAIL
04/06/03   FRANKLIN                       REPORTED BY LAW
                                          ENFORCEMENT.

1215 AM    2 W MOUNT VERNON          TX   1.75 INCH HAIL
04/06/03   FRANKLIN                       REPORTED BY LAW
                                          ENFORCEMENT.

1220 AM    2 N MOUNT VERNON          TX   1.75 INCH HAIL
04/06/03   FRANKLIN                       REPORTED BY LAW
                                          ENFORCEMENT.

1225 AM    5 S HAGANSPORT            TX   2.00 INCH HAIL
04/06/03   FRANKLIN                       REPORTED BY AMATEUR RADIO.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 11:58 PM CST	Severe Thunderstorm Warning	SHV	Franklin	62 min
Apr 6, 12:27 AM CST	Severe Thunderstorm Warning	SHV	Titus	63 min
Apr 6, 12:46 AM CST	Severe Thunderstorm Warning	SHV	Red River	59 min
Apr 6, 1:05 AM CST	Severe Thunderstorm Warning	SHV	Franklin	115 min
Apr 6, 12:52 PM CDT	Severe Thunderstorm Warning	SHV	Harrison	53 min
Apr 6, 12:52 PM CDT	Tornado Warning	SHV	Rusk	38 min
Apr 6, 1:17 PM CDT	Tornado Warning	SHV	Panola	43 min
Apr 6, 3:39 PM CDT	Tornado Warning	SHV	Angelina, Nacogdoches	51 min
Apr 6, 4:26 PM CDT	Severe Thunderstorm Warning	SHV	San Augustine	49 min
Apr 6, 4:48 PM CDT	Severe Thunderstorm Warning	SHV	Shelby	42 min
Apr 6, 4:57 PM CDT	Severe Thunderstorm Warning	SHV	Sabine	48 min

Nearby

Severe Thunderstorm Warnings in Texas, 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.