Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 21, NWS Shreveport, LA

February 5, 20086 counties in Texas

NWS Shreveport, LA issued this severe thunderstorm warning at Feb 5, 2008, 5:03 PM CST for 6 counties in Texas. It was in force for 42 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Feb 5, 2008, 5:03 PM CST (23:03 UTC)
Expired: Feb 5, 2008, 5:45 PM CST
In force: 42 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon

Counties Camp County, TX, Cass County, TX, Harrison County, TX, Marion County, TX, Morris County, TX, Upshur County, TX

The radar

The Shreveport radar (KSHV), 98 km from the middle of the area, began a volume at 23:03 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.

What was reported inside it

Time	Report	Where	Remark
Feb 5, 5:23 PM CST	HAIL 0.5	Linden, TX

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Feb 5, 11:56 AM CST	Tornado Watch	SPC	7 hr
Feb 5, 3:59 PM CST	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 11.1 hours before the alert went out and 103 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: 544 J/kg
Mixed-layer CIN: -205 J/kg
Mixed-layer LCL: 617 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 279 m²/s²
0-3 km storm-relative helicity: 354 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KSHV 052303
SVRSHV
TXC063-067-203-315-343-459-052345-
/O.NEW.KSHV.SV.W.0021.080205T2303Z-080205T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
503 PM CST TUE FEB 5 2008

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CAMP COUNTY IN NORTHEAST TEXAS...
  SOUTHERN CASS COUNTY IN NORTHEAST TEXAS...
  EXTREME NORTHWESTERN HARRISON COUNTY IN NORTHEAST TEXAS...
  NORTHWESTERN MARION COUNTY IN NORTHEAST TEXAS...
  SOUTHERN MORRIS COUNTY IN NORTHEAST TEXAS...
  NORTHEASTERN UPSHUR COUNTY IN NORTHEAST TEXAS...

* UNTIL 545 PM CST

* AT 458 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  ORE CITY...OR ABOUT 10 MILES NORTHEAST OF GILMER...AND MOVING
  NORTHEAST AT 55 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LONE STAR BY 510 PM CST...
  6 MILES SOUTHEAST OF HUGHES SPRINGS BY 515 PM CST...
  LINDEN BY 530 PM CST...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CST TUESDAY EVENING
FOR SOUTHWEST ARKANSAS AND SOUTHEAST OKLAHOMA AND NORTHEAST TEXAS.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 800 PM CST
TUESDAY EVENING FOR NORTHEASTERN TEXAS.

LAT...LON 3306 9419 3265 9476 3283 9490 3300 9484
      3299 9482 3299 9481 3306 9482 3313 9480
TIME...MOT...LOC 2303Z 233DEG 50KT 3283 9471

$$

14

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 5, 3:00 AM CST	Lake Wind Advisory	SHV	Angelina, Bowie, Camp, Cass, Cherokee, Franklin and 15 more	15 hr
Feb 5, 3:24 PM CST	Severe Thunderstorm Warning	SHV	Red River	66 min
Feb 5, 4:05 PM CST	Severe Thunderstorm Warning	SHV	Camp, Franklin, Titus	40 min
Feb 5, 4:15 PM CST	Severe Thunderstorm Warning	SHV	Smith, Wood	60 min
Feb 5, 4:15 PM CST	Severe Thunderstorm Warning	SHV	Bowie, Cass, Morris	45 min
Feb 5, 4:37 PM CST	Severe Thunderstorm Warning	SHV	Upshur	23 min
Feb 5, 4:53 PM CST	Severe Thunderstorm Warning	SHV	Cherokee	36 min
Feb 5, 4:59 PM CST	Severe Thunderstorm Warning	SHV	Gregg, Harrison, Rusk	46 min
Feb 5, 5:00 PM CST	Severe Thunderstorm Warning	SHV	Bowie, Cass, Morris	60 min
Feb 5, 5:19 PM CST	Severe Thunderstorm Warning	SHV	Cass, Marion	26 min
Feb 5, 5:23 PM CST	Severe Thunderstorm Warning	SHV	Rusk	37 min

Nearby

Severe Thunderstorm Warnings in Texas, 2008 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.