Alert archive / Louisiana / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 201, NWS Shreveport, LA

June 3, 2007Sabine Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Jun 3, 2007, 1:42 PM CDT for Sabine Parish, Louisiana. It was in force for 33 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: Jun 3, 2007, 1:42 PM CDT (18:42 UTC)
Expired: Jun 3, 2007, 2:15 PM CDT
In force: 33 min
Issued by: NWS Shreveport, LA
Area: Counties, with a storm outline in the text

County Sabine Parish, LA

What was reported inside it

Time	Report	Where	Remark
Jun 3, 1:50 PM CDT	TSTM WND DMG	Many, LA	MULTIPLE REPORTS OF TREES AND POWERLINES DOWN IN THE EASTERN HALF OF THE PARISH.

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 8 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 3, 12:22 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 6.7 hours before the alert went out and 108 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: 1057 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 1141 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KSHV 031843
SVRSHV
LAC085-031915-
/O.NEW.KSHV.SV.W.0201.070603T1842Z-070603T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
142 PM CDT SUN JUN 3 2007

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

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

* UNTIL 215 PM CDT

* AT 142 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS
  IN EXCESS OF 70 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 16 MILES NORTH OF MANY TO 20 MILES SOUTH OF MANY... 
  OR ALONG A LINE EXTENDING FROM NEAR PLEASANT HILL...TO             
  FLORIEN...AND MOVING EAST AT 45 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  RURAL EASTERN SABINE PARISH INCLUDING MOUNT CARMEL AND PEASON BY   
  200 PM CDT

THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE ACROSS 
WESTERN SABINE PARISH. THIS IS AN EXTREMELY DANGEROUS SITUATION. 
SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM 
WINDOWS

LAT...LON 3183 9353 3183 9345 3172 9345 3171 9334
      3155 9334 3153 9323 3139 9324 3138 9338
      3128 9344 3129 9353 3121 9358

$$

15

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 Jun 3, 9:31 AM CDT, 4 hours 11 minutes earlier.

Area forecast discussion, Jun 3, 9:31 AM CDT, 4 hours 11 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
931 AM CDT SUN JUN 3 2007

.DISCUSSION...
UPDATED TO ACCOUNT FOR SVR WATCH #336 VALID UNTIL 2PM FOR THE
SOUTHERN TWO THIRDS OF NORTHEAST TEXAS. INSTABILITY STARTING TO
INCREASE AHEAD OF MCS ACROSS N TX ATTM AND WITH DESCENT MID LEVEL
WINDS ACCOMPANYING MCS...FEEL LIKE IT SHOULD HOLD TOGETHER AT LEAST
UNTIL LATE MORNING AND PERHAPS EVEN INTO THE EARLY AFTERNOON. HAVE
INCREASED POPS OUT WEST ACCORDINGLY AND SHAVED SOME HIGH TEMPS FOR
TODAY OUT WEST AS WELL.

UPDATE ALREADY SENT...13.

&&

.AVIATION...
TROUGH OVER THE UPPER MIDWEST MOVING EAST ACROSS MID MS VALLEY NOW.
RESULTANT NW FLOW OVER THE FOUR-STATE AREA NOW WITH AN MCS KNOCKING
ON THE DOOR.  KTYR...KGGG...AND KLFK WILL BE AMENDED SHORTLY WITH
TEMPO GROUPS FOR SVR WX THREAT.  SOME GUST TO 50KTS ALREADY REPORTED
JUST TO OUR WEST.  AS FOR THE 18Z ISSUANCE...WILL CLOSELY MONITOR
PROGRESS OF THIS SYSTEM.  VFR CIGS FOR MOST WITH SFC WINDS S OR SW
NOW...VEERING TO MORE WESTERLY THIS P.M. 10KTS. THIS SHOULD DRY OUT
THE PBL SOMEWHAT...COUPLED W/WARM AFTERNOON TEMPS.  THUS...EXPECT
ONLY MVFR CONDITIONS AT A COUPLE OF TAF SITES AROUND SUNRISE MONDAY
MORNING...ASIDE FROM ANY THAT SEE A DOWNPOUR.  ONE MORE VORT NOW
OVER W NM MAY BRING IN ROUND 3 TOMORROW A.M.OVER SW QUAD OF CWA.

/24/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  87  66  89  67 /  40  30  30  10
MLU  90  67  89  64 /  20  20  30  10
DEQ  87  61  86  61 /  20  20  20  10
TXK  87  63  88  63 /  40  20  20  10
ELD  90  64  88  62 /  20  20  20  10
TYR  85  67  87  66 /  60  30  30  10
GGG  85  66  88  66 /  60  30  30  10
LFK  86  69  87  69 /  60  40  30  20

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...NONE.
LA...NONE.
OK...NONE.
TX...NONE.
&&

13/24

Hazardous weather outlook, Jun 3, 12:00 PM CDT, 1 hour 42 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1200 PM CDT SUN JUN 3 2007

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-041100-
ANGELINA-BIENVILLE-BOSSIER-BOWIE-CADDO-CALDWELL-CAMP-CASS-CHEROKEE-
CLAIBORNE-COLUMBIA-DE SOTO-FRANKLIN-GRANT-GREGG-HARRISON-HEMPSTEAD-
HOWARD-JACKSON-LA SALLE-LAFAYETTE-LINCOLN-LITTLE RIVER-MARION-
MCCURTAIN-MILLER-MORRIS-NACOGDOCHES-NATCHITOCHES-NEVADA-OUACHITA-
PANOLA-RED RIVER LA-RED RIVER TX-RUSK-SABINE LA-SABINE TX-
SAN AUGUSTINE-SEVIER-SHELBY-SMITH-TITUS-UNION AR-UNION LA-UPSHUR-
WEBSTER-WINN-WOOD-
1200 PM CDT SUN JUN 3 2007

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

.DAY ONE...TODAY AND TONIGHT...

A LARGE UPPER LEVEL STORM SYSTEM ACROSS NORTH CENTRAL TEXAS WILL RESULT
IN SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ACROSS THE FOUR STATE
REGION TODAY. STRONG AND DAMAGING WIND GUSTS ALONG WITH LARGE HAIL WILL
BE POSSIBLE THIS MORNING INTO THE EARLY AFTERNOON HOURS ACROSS NORTHEAST
TEXAS AS A SQUALL LINE IS EXPECTED TO AFFECT THE REGION. LATER THIS
AFTERNOON WITH THE AID OF HEATING...ISOLATED TO WIDELY SCATTERED
THUNDERSTORMS WILL DEVELOP ACROSS NORTHWEST LOUISIANA AND SOUTHWEST
ARKANSAS. THESE WILL BE MORE ISOLATED IN NATURE BUT COULD STILL CONTAIN
STRONG WINDS GUSTS AND POSSIBLE SMALL HAIL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

SCATTERED THUNDERSTORMS WILL CONTINUE OVER THE AREA
IN ASSOCIATION WITH A NEARLY STATIONARY FRONTAL BOUNDARY
ACROSS THE FOUR STATE REGION NEAR THE INTERSTATE 20 CORRIDOR.
A MOIST AND UNSTABLE AIRMASS...ALONG WITH UPPER DISTURBANCES
TRAVERSING THE REGION WILL ALLOW SOME OF THE THUNDERSTORMS
TO BECOME STRONG AND POSSIBLY SEVERE MONDAY AND MONDAY
NIGHT. HIGH WINDS AND LARGE HAIL...ALONG WITH GUSTY WINDS AND
DANGEROUS LIGHTNING WILL BE POSSIBLE ACROSS THE SOUTHERN
SECTIONS OF EAST TEXAS INTO WEST CENTRAL AND CENTRAL LOUISIANA.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER...EMERGENCY MANAGER...AND STORM SPOTTER ACTIVATION
MAY BE NEEDED OVER NORTHEAST TEXAS AND EXTREME WESTERN LOUISIANA
TODAY AND TONIGHT.

13

In the hours before

Local storm report, Jun 3, 12:16 PM CDT, 1 hour 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1216 PM CDT SUN JUN 03 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1210 PM     TSTM WND DMG     NACOGDOCHES             31.61N 94.65W
06/03/2007                   NACOGDOCHES        TX   LAW ENFORCEMENT

            MULTIPLE REPORTS OF TREES AND POWER LINES DOWN ACROSS THE
            COUNTY. POWER OUT IN MANY AREAS.

1112 AM     TSTM WND DMG     WHITEHOUSE              32.23N 95.22W
06/03/2007                   SMITH              TX   BROADCAST MEDIA

            NUMEROUS TREES AND POWERLINES DOWN ACROSS TOWN.

&&

18

Local storm report, Jun 3, 12:56 PM CDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SHREVEPORT LA
1256 PM CDT SUN JUN 03 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1207 PM     TSTM WND DMG     NACOGDOCHES             31.61N 94.65W
06/03/2007                   NACOGDOCHES        TX   TRAINED SPOTTER

            LARGE LIMBS DOWN IN DOWNTOWN.

1210 PM     TSTM WND DMG     NACOGDOCHES             31.61N 94.65W
06/03/2007                   NACOGDOCHES        TX   LAW ENFORCEMENT

            MULTIPLE REPORTS OF TREES AND POWER LINES DOWN ACROSS THE
            COUNTY. POWER OUT IN MANY AREAS.

1225 PM     TSTM WND DMG     LUFKIN                  31.33N 94.73W
06/03/2007                   ANGELINA           TX   LAW ENFORCEMENT

            MULTIPLE REPORTS OF TREES DOWN ACROSS COUNTY ROADS.

1230 PM     TSTM WND GST     HUNTINGTON              31.28N 94.58W
06/03/2007  E60.00 MPH       ANGELINA           TX   TRAINED SPOTTER

&&

18

Local storm report, Jun 3, 1:17 PM CDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
117 PM CDT SUN JUN 03 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1230 PM     TSTM WND DMG     SAN AUGUSTINE           31.53N 94.11W
06/03/2007                   SAN AUGUSTINE      TX   LAW ENFORCEMENT

            MULTIPLE REPORTS OF TREES AND POWERLINES DOWN ACROSS THE
            COUNTY. POWER IS OUT IN A FEW AREAS.

&&

18

Local storm report, Jun 3, 1:24 PM CDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
124 PM CDT SUN JUN 03 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1230 PM     TSTM WND DMG     CARTHAGE                32.15N 94.34W
06/03/2007                   PANOLA             TX   LAW ENFORCEMENT

            MULTIPLE REPORTS OF TREES AND POWERLINES DOWN ACROSS THE
            COUNTY. POWER IS OUT IN SOME AREAS.

&&

18

Local storm report, Jun 3, 1:28 PM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
128 PM CDT SUN JUN 03 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1130 AM     TSTM WND DMG     6 E JACKSONVILLE        31.97N 95.16W
06/03/2007                   CHEROKEE           TX   FIRE DEPT/RESCUE

            *** 3 INJ *** CAR HIT DOWNED TREES RESULTING IN INJURIES
            ON FM 2064.

&&

18

Local storm report, Jun 3, 1:39 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
139 PM CDT SUN JUN 03 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0115 PM     TSTM WND DMG     HEMPHILL                31.34N 93.85W
06/03/2007                   SABINE             TX   LAW ENFORCEMENT

            MULTIPLE REPORTS OF TREES DOWN ALONG ROADS ACROSS THE
            COUNTY.

&&

18

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 12:42 PM CDT	Severe Thunderstorm Warning	SHV	Caddo, De Soto	63 min
Jun 3, 12:51 PM CDT	Severe Thunderstorm Warning	SHV	Sabine	54 min
Jun 3, 1:24 PM CDT	Severe Thunderstorm Warning	SHV	Red River	66 min
Jun 3, 1:33 PM CDT	Severe Thunderstorm Warning	SHV	Natchitoches	57 min
Jun 3, 2:09 PM CDT	Severe Thunderstorm Warning	SHV	Winn	66 min
Jun 3, 2:14 PM CDT	Severe Thunderstorm Warning	SHV	Bienville	61 min
Jun 3, 2:34 PM CDT	Severe Thunderstorm Warning	SHV	Grant	56 min
Jun 3, 2:55 PM CDT	Severe Thunderstorm Warning	SHV	Jackson, Lincoln	65 min
Jun 3, 3:00 PM CDT	Severe Thunderstorm Warning	SHV	LaSalle	60 min
Jun 3, 3:04 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell	56 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2007 Every severe thunderstorm warning in 2007

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.