Alert archive / Louisiana / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 224, NWS Shreveport, LA

July 5, 20154 parishes in Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Jul 5, 2015, 6:10 PM CDT for 4 parishes in Louisiana. It was in force for 50 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: Jul 5, 2015, 6:10 PM CDT (23:10 UTC)
Expired: Jul 5, 2015, 7:00 PM CDT
In force: 50 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Red River Parish, LA

The radar

The Shreveport radar (KSHV), 35 km from the middle of the area, began a volume at 23:12 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 (KBAD), launched 12:00Z, 11.2 hours before the alert went out and 27 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: 1439 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 890 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jul 5, 4:20 PM CDT, 1 hour 50 minutes earlier.

Area forecast discussion, Jul 5, 4:20 PM CDT, 1 hour 50 minutes before

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Hazardous weather outlook, Jul 5, 3:34 PM CDT, 2 hours 36 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
334 PM CDT SUN JUL 5 2015

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-
TXZ097-112-126-138-151-153-166-167-061100-
SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE-
COLUMBIA-UNION-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN-DE SOTO-
RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE-NATCHITOCHES-WINN-
GRANT-CALDWELL-LA SALLE-MCCURTAIN-BOWIE-CASS-MARION-HARRISON-
PANOLA-SHELBY-SAN AUGUSTINE-
334 PM CDT SUN JUL 5 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...

SCATTERED THUNDERSTORMS WILL CONTINUE THROUGH EARLY THIS EVENING
ACROSS PORTIONS OF SOUTHEAST OKLAHOMA...SOUTHWEST ARKANSAS AND
NORTHERN LOUISIANA. THE BEST CHANCES FOR THUNDERSTORMS WILL
GENERALLY BE EAST OF A LINE FROM PRESCOTT ARKANSAS TO HEMPHILL
TEXAS. A COUPLE OF STORMS COULD BECOME SEVERE WITH DAMAGING WINDS
AND LARGE HAIL THE PRIMARY THREATS. IN ADDITION...LOCALLY HEAVY
RAINFALL AND DEADLY CLOUD TO GROUND LIGHTNING WILL BE POSSIBLE
WITH ANY THUNDERSTORMS.

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

ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE MONDAY
THROUGH WEDNESDAY MAINLY ACROSS SOUTHEAST OKLAHOMA...NORTHEAST
TEXAS AND SOUTHERN ARKANSAS ALONG AND NORTH OF THE U.S. HIGHWAY 82
CORRIDOR AS AN UPPER LEVEL TROUGH APPROACHES THE REGION. DRY
WEATHER WILL RETURN FOR MOST OF THE REGION THURSDAY THROUGH
SATURDAY BUT ISOLATED THUNDERSTORMS WILL BE POSSIBLE DURING PEAK
AFTERNOON HEATING ACROSS DEEP EAST TEXAS EASTWARD INTO NORTH
CENTRAL LOUISIANA.

.SPOTTER INFORMATION STATEMENT...

DUE TO THE ISOLATED NATURE OF ANY SEVERE WEATHER...SPOTTER
ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT.

TXZ096-108>111-124-125-136-137-149-150-152-165-061100-
RED RIVER-FRANKLIN-TITUS-CAMP-MORRIS-WOOD-UPSHUR-SMITH-GREGG-
CHEROKEE-RUSK-NACOGDOCHES-ANGELINA-
334 PM CDT SUN JUL 5 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST TEXAS AND
NORTHEAST TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

A FEW ISOLATED THUNDERSTORMS WILL BE POSSIBLE THROUGH EARLY THIS
EVENING. BRIEF HEAVY DOWNPOURS AND DANGEROUS CLOUD TO GROUND
LIGHTNING WILL BE POSSIBLE. HOWEVER...NO ORGANIZED HAZARDOUS
WEATHER IS EXPECTED AT THIS TIME.

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

ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE MONDAY
THROUGH WEDNESDAY MAINLY ACROSS SOUTHEAST OKLAHOMA...NORTHEAST
TEXAS AND SOUTHERN ARKANSAS ALONG AND NORTH OF THE U.S. HIGHWAY 82
CORRIDOR AS AN UPPER LEVEL TROUGH APPROACHES THE REGION. DRY
WEATHER WILL RETURN FOR MOST OF THE REGION THURSDAY THROUGH
SATURDAY BUT ISOLATED THUNDERSTORMS WILL BE POSSIBLE DURING PEAK
AFTERNOON HEATING ACROSS DEEP EAST TEXAS EASTWARD INTO NORTH
CENTRAL LOUISIANA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT.

09

In the hours before

Special weather statement, Jul 5, 12:53 PM CDT, 5 hours 17 minutes before

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Special weather statement, Jul 5, 2:57 PM CDT, 3 hours 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
257 PM CDT SUN JUL 5 2015

LAZ019>022-052100-
LA SALLE LA-CALDWELL LA-WINN LA-GRANT LA-
257 PM CDT SUN JUL 5 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN CALDWELL...SOUTHEASTERN
WINN...NORTHERN GRANT AND LA SALLE PARISHES UNTIL 400 PM CDT...

AT 256 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES EAST OF MONTGOMERY
TO 16 MILES NORTH OF BALL TO 6 MILES NORTHEAST OF DEVILLE TO BIG
BEND...AND MOVING NORTHEAST AT 30 MPH.

HALF INCH HAIL AND WIND GUSTS UP TO 40 MPH WILL BE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
JENA...OLLA...CLARKS...GRAYSON...MIDWAY...URANIA...TULLOS...
GEORGETOWN...STANDARD...BURLINGTON...ZENORIA...SPAULDING...
WILLIANA...KELLY...CATAHOULA LAKE...ROGERS...NEBO AND ROCHELLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3193 9190 3193 9201 3133 9201 3133 9205
      3144 9216 3147 9216 3147 9222 3164 9248
      3171 9283 3211 9226 3204 9190
TIME...MOT...LOC 1956Z 234DEG 39KT 3171 9273 3165 9246 3142 9211 3110
9180

13

Special weather statement, Jul 5, 3:32 PM CDT, 2 hours 38 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
332 PM CDT SUN JUL 5 2015

LAZ019>022-052115-
LA SALLE LA-CALDWELL LA-WINN LA-GRANT LA-
332 PM CDT SUN JUL 5 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN CALDWELL...
SOUTHEASTERN WINN...NORTHEASTERN GRANT AND LA SALLE PARISHES UNTIL
415 PM CDT...

AT 331 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 16
MILES NORTHEAST OF COLFAX...OR 18 MILES SOUTHEAST OF WINNFIELD...
MOVING EAST AT 25 MPH.

HALF INCH HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
JENA...OLLA...CLARKS...GRAYSON...MIDWAY...URANIA...DRY PRONG...
TULLOS...GEORGETOWN...STANDARD...BURLINGTON...ZENORIA...SPAULDING...
WILLIANA...KELLY...NEBO AND ROCHELLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3156 9254 3179 9265 3207 9211 3159 9201
      3155 9201
TIME...MOT...LOC 2031Z 248DEG 33KT 3168 9250

13

Special weather statement, Jul 5, 4:07 PM CDT, 2 hours 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
407 PM CDT SUN JUL 5 2015

LAZ013-019-021-052145-
CALDWELL LA-JACKSON LA-WINN LA-
407 PM CDT SUN JUL 5 2015

...SIGNIFICANT WEATHER ADVISORY FOR CALDWELL...NORTHEASTERN WINN AND
SOUTHEASTERN JACKSON PARISHES UNTIL 445 PM CDT...

AT 407 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 14
MILES NORTHEAST OF WINNFIELD...MOVING EAST AT 15 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
COLUMBIA...CLARKS...GRAYSON...SIKES...SPAULDING...RIVERTON...KELLY
AND BURLINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3193 9223 3196 9254 3214 9256 3228 9204
      3227 9199 3225 9199 3223 9201 3223 9199
      3221 9199 3219 9201 3220 9198 3220 9197
      3219 9198 3217 9198 3217 9194 3193 9191
TIME...MOT...LOC 2107Z 264DEG 41KT 3206 9246

13

Special weather statement, Jul 5, 5:49 PM CDT, 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
549 PM CDT SUN JUL 5 2015

ARZ071-072-LAZ002-003-052330-
LAFAYETTE AR-COLUMBIA AR-BOSSIER LA-WEBSTER LA-
549 PM CDT SUN JUL 5 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL LAFAYETTE AND
SOUTHWESTERN COLUMBIA COUNTIES...NORTHERN BOSSIER AND NORTHWESTERN
WEBSTER PARISHES UNTIL 630 PM CDT...

AT 548 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
PLAIN DEALING...OR 17 MILES SOUTHWEST OF SPRINGHILL...MOVING
NORTHEAST AT 15 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SPRINGHILL...CULLEN...PLAIN DEALING...COTTON VALLEY...SAREPTA...
TAYLOR...SHONGALOO...WELCOME...ALDEN BRIDGE...ROCKY MOUNT...
BOLINGER...IVAN AND STATE LINE.

LAT...LON 3269 9366 3282 9379 3284 9378 3313 9346
      3292 9326
TIME...MOT...LOC 2248Z 229DEG 15KT 3281 9367

19

Special weather statement, Jul 5, 5:53 PM CDT, 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
553 PM CDT SUN JUL 5 2015

ARZ071-072-052345-
LAFAYETTE AR-COLUMBIA AR-
553 PM CDT SUN JUL 5 2015

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL LAFAYETTE AND
NORTHWESTERN COLUMBIA COUNTIES UNTIL 645 PM CDT...

AT 553 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
CANFIELD...OR NEAR LEWISVILLE...MOVING EAST AT 15 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
STAMPS...WALDO...LEWISVILLE...BUCKNER...SMITHLAND...CANFIELD...MOUNT
VERNON...MARS HILL...LERCH...CORNELIUS AND MCKAMIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3341 9331 3314 9331 3317 9367 3338 9366
TIME...MOT...LOC 2253Z 268DEG 11KT 3327 9359

19

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 11:30 AM CDT	River Flood Warning	SHV	Bowie, Red River	9 days
Jul 5, 12:53 PM CDT	Special Weather Statement	SHV	Union	52 min
Jul 5, 2:57 PM CDT	Special Weather Statement	SHV	LaSalle	63 min
Jul 5, 3:32 PM CDT	Special Weather Statement	SHV	LaSalle	43 min
Jul 5, 4:07 PM CDT	Special Weather Statement	SHV	Caldwell	38 min
Jul 5, 5:49 PM CDT	Special Weather Statement	SHV	Bossier	41 min
Jul 5, 6:14 PM CDT	Special Weather Statement	SHV	Jackson	46 min
Jul 5, 6:03 AM CDT	Special Weather Statement	SHV	Union	42 min
Jul 5, 5:53 PM CDT	Special Weather Statement	SHV	Lafayette	52 min
Jul 5, 6:46 PM CDT	Special Weather Statement	SHV	Lafayette	44 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2015 Every severe thunderstorm warning in 2015

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.