Alert archive / Louisiana / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 166, NWS Shreveport, LA

August 11, 20146 parishes in Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Aug 11, 2014, 4:04 PM CDT for 6 parishes in Louisiana. It was in force for 56 min. 4 reports 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: Aug 11, 2014, 4:04 PM CDT (21:04 UTC)
Expired: Aug 11, 2014, 5:00 PM CDT
In force: 56 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon

Counties De Soto Parish, LA, Grant Parish, LA, LaSalle Parish, LA, Natchitoches Parish, LA, Sabine Parish, LA, Winn Parish, LA

The radar

The Ft Polk radar (KPOE), 35 km from the middle of the area, began a volume at 21:06 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
Aug 11, 4:05 PM CDT	TSTM WND DMG	2 Ese Georgetown, LA	TREES AND POWER LINES DOWN ALONG EBENEZER TAP ROAD IN THE TROUT COMMUNITY.
Aug 11, 4:05 PM CDT	TSTM WND DMG	Jena, LA	LARGE LIMBS DOWNED POWER LINES ON NORTH SECOND AND COTTON STREET IN JENA.
Aug 11, 4:20 PM CDT	TSTM WND DMG	3 N Pollock, LA	TREE DOWN ON 165 N
Aug 11, 4:30 PM CDT	TSTM WND DMG	5 Se Colfax, LA	TREE DOWN ON KAITLYN ROAD

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 4 storm reports to this severe thunderstorm warning; the first came 1 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 nearest sounding before it

Shreveport, LA (KBAD), launched 12:00Z, 9.1 hours before the alert went out and 141 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: 1544 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 1032 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -60 m²/s²
0-3 km storm-relative helicity: -17 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.

662 
WUUS54 KSHV 112104
SVRSHV
LAC031-043-059-069-085-127-112200-
/O.NEW.KSHV.SV.W.0166.140811T2104Z-140811T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
404 PM CDT MON AUG 11 2014

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GRANT PARISH IN NORTH CENTRAL LOUISIANA...
  LA SALLE PARISH IN NORTH CENTRAL LOUISIANA...
  SOUTHWESTERN WINN PARISH IN NORTH CENTRAL LOUISIANA...
  SOUTHEASTERN DE SOTO PARISH IN NORTHWEST LOUISIANA...
  NATCHITOCHES PARISH IN NORTHWEST LOUISIANA...
  THIS INCLUDES THE CITY OF NATCHITOCHES...
  SABINE PARISH IN NORTHWEST LOUISIANA...

* UNTIL 500 PM CDT

* AT 358 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 7 MILES EAST OF MONTGOMERY...OR
  20 MILES SOUTHWEST OF WINNFIELD...AND MOVING SOUTH AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO   
MIDWAY...JENA...COLFAX...NATCHITOCHES...MANY...AND FLORIEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 3132 9208 3147 9220 3139 9269 3151 9272
      3134 9295 3136 9303 3136 9338 3127 9344
      3127 9352 3119 9354 3117 9360 3197 9373
      3184 9316 3180 9268 3179 9200 3133 9200
TIME...MOT...LOC 2102Z 350DEG 32KT 3163 9277

$$

19

1 follow-up statement

261 
WWUS54 KSHV 112148
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
448 PM CDT MON AUG 11 2014

LAC031-059-127-112157-
/O.CAN.KSHV.SV.W.0166.000000T0000Z-140811T2200Z/
LA SALLE LA-DE SOTO LA-WINN LA-
448 PM CDT MON AUG 11 2014

...THE SEVERE THUNDERSTORM WARNING FOR WINN...DE SOTO AND LA SALLE
PARISHES IS CANCELLED...

THE SEVERE THUNDERSTORMS HAVE EXITED THESE AREAS. 

LAT...LON 3184 9371 3184 9362 3164 9317 3146 9230
      3139 9269 3151 9272 3134 9295 3136 9303
      3136 9338 3128 9343 3127 9352 3123 9355
      3119 9354 3117 9360
TIME...MOT...LOC 2147Z 325DEG 18KT 3132 9250 3142 9314
          3163 9363

$$

LAC043-069-085-112200-
/O.CON.KSHV.SV.W.0166.000000T0000Z-140811T2200Z/
SABINE LA-NATCHITOCHES LA-GRANT LA-
448 PM CDT MON AUG 11 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR GRANT...NATCHITOCHES AND SABINE PARISHES...

AT 447 PM CDT...USING DOPPLER RADAR...NATIONAL WEATHER SERVICE
METEOROLOGISTS CONTINUED TO DETECT A LINE OF SEVERE THUNDERSTORMS
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 17 MILES SOUTHEAST OF
COLFAX TO KISATCHIE TO ZWOLLE...OR ALONG A LINE EXTENDING FROM
ALEXANDRIA TO 17 MILES NORTH OF SLAGLE TO 26 MILES SOUTH OF
MANSFIELD...MOVING SOUTHEAST AT 20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
NEGREET...MOUNT CARMEL...FLORIEN AND FISHER

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. IF YOU ARE IN THEIR PATH...PREPARE 
IMMEDIATELY FOR DAMAGING WINDS...AND DEADLY CLOUD TO GROUND 
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY 
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

&&

LAT...LON 3184 9371 3184 9362 3164 9317 3146 9230
      3139 9269 3151 9272 3134 9295 3136 9303
      3136 9338 3128 9343 3127 9352 3123 9355
      3119 9354 3117 9360
TIME...MOT...LOC 2147Z 325DEG 18KT 3132 9250 3142 9314
          3163 9363

$$

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 Aug 11, 4:02 PM CDT, 2 minutes earlier.

Area forecast discussion, Aug 11, 4:02 PM CDT, 2 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
402 PM CDT MON AUG 11 2014

.DISCUSSION...
SCT CONVECTION EARLY THIS AFTERNOON HAS ORGANIZED INTO A SMALL MCS
OVER NCNTRL LA...AHEAD OF A WEAK SFC TROUGH THAT LINGERS NEAR OR
JUST S OF THE I-20 CORRIDOR OF N LA/E TX AS OF 20Z. ALSO SEEING
ADDITIONAL SCT CONVECTION ONGOING ACROSS ECNTRL TX SE OF CRS...AND
JUST S OF JSO...WHICH WILL AFFECT PORTIONS OF DEEP E TX THROUGH
EARLY EVENING. ALL OF THIS CONVECTION SHOULD QUICKLY RACE OUT OF
THE REGION NEAR OR JUST PRIOR TO 00Z...BUT HAVE CONCENTRATED HIGH
CHANCE POPS EARLY IN THE PERIOD FOR THESE AREAS...TAPERING TO
SLIGHT CHANCE FARTHER N TOWARDS THE I-20 CORRIDOR NEAR THE
FRONT...WHERE VERY ISOLATED -SHRA HAVE REDEVELOPED. HAVE TRENDED
THE SHORT TERM FORECAST TOWARDS THE NAM...WHICH HAS HANDLED THE
FRONT BEST WITH A SLOWER MOVEMENT MORESO THAN THE PROGRESSIVE
GFS...WHICH ACTUALLY EXITS THE FRONT OUT OF THE AREA LATE. GIVEN
THE SHALLOW NATURE OF THE POST-FRONTAL AIR MASS OVER OUR AREA AND
WEAK PRESSURE RISES FARTHER N...DON/T THINK THE TRUE FRONT WILL GO
VERY FAR OVERNIGHT...UNTIL IT IS SLOWLY REINFORCED SWD LATE AS SFC
RIDGING TO THE N BEGINS TO BUILD IN. DID MAINTAIN SLIGHT CHANCE
POPS AFTER 06Z IN VC AND S OF THE FRONT...UNTIL DRIER AIR DEEPENS
LATE WITH THE APPROACH OF A LONGWAVE TROUGH AXIS NOW DIGGING
THROUGH CNTRL OK/NW AR THIS AFTERNOON. THIS SHOULD HELP NUDGE THE
SFC TROUGH S OUT OF THE AREA BY TUESDAY AFTERNOON...WITH SLIGHTLY
DRIER SFC AIR FILTERING SWD IN ITS WAKE.

THIS DRY NW FLOW ALOFT SHOULD PERSIST THROUGH MUCH OF THIS
WEEK...RESULTING IN SLIGHTLY LOWER TEMPS BUT NOTICABLY DRIER
RH/S...WITH MIN TEMPS FALLING INTO THE 60S AREAWIDE
TUESDAY/WEDNESDAY NIGHTS...WITH EVEN SOME UPPER 50S POSSIBLE IN
THE MORE PROTECTED AREAS OF SE OK/ADJACENT SW AR. UPPER RIDGING
OVER THE FOUR CORNERS AREA SHOULD SLOWLY BUILD BACK E INTO THE SRN
PLAINS LATE WEDNESDAY INTO THURSDAY...WITH TEMPS GRADUALLY WARMING
BACK TO NEAR NORMAL READINGS. RH/S SHOULD BEGIN TO MODIFY BY
FRIDAY AND SATURDAY WITH A RETURN SSE LOW LEVEL FLOW...JUST IN
TIME FOR THE RIDGE TO FLATTEN IN RESPONSE TO SHORTWAVE ENERGY
SPILLING SE ACROSS THE CNTRL/SRN PLAINS. THE 12Z GFS IS MORE
AGGRESSIVE WITH THIS THAN THE CURRENT ECMWF SATURDAY...AS WELL AS
EARLIER RUNS...BUT BOTH AGREE ON ADDITIONAL ENERGY TRIGGERING A
POTENTIAL MCS FROM AR INTO NCNTRL LA SUNDAY. HAVE SIDED CLOSER TO
THE ECMWF SOLUTION THIS COMING WEEKEND GIVEN ITS BETTER RUN TO RUN
CONTINUITY...AND HAVE INCREASED POPS TO CHANCE FOR THESE AREAS
SUNDAY.

PRELIMS TO FOLLOW BELOW...

15

&&

.PREV DISCUSSION... /ISSUED 105 PM CDT MON AUG 11 2014/

AVIATION...
FOR THE 11/18Z TAFS...WEAK FRONTAL BOUNDARY TO CONTINUE SLOW SWRD
PROGRESS DURING THE TAF PERIOD. SCATTERED CONVECTION ALREADY SEEN
EARLY THIS AFTERNOON WITH GREATEST CONCENTRATION ACROSS THE EAST
AFFECTING THE ELD/MLU TERMINALS. FARTHER WEST...COVERAGE WILL STAY
MORE ISOLATED SO HAVE HANDLED REMAINING SITES WITH VCTS THROUGH
THIS AFTERNOON/EARLY EVENING. CONDITIONS ARE EXPECTED TO REMAIN
MOSTLY VFR WITH PERIODS OF MVFR CIGS/VSBYS POSSIBLE DURING HEAVY
DOWNPOURS. CLOUDS WILL GRADUALLY DECREASE FROM NORTH TO SOUTH
OVERNIGHT BEHIND THE FRONT WITH WINDS BECOMING MORE N/NW AND
SPEEDS LESS THAN 10 KTS OUTSIDE AREAS OF CONVECTION. /19/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  74  92  67  92  68 /  20   0   0   0   0
MLU  72  91  64  91  65 /  20  10   0   0   0
DEQ  65  88  59  89  63 /   0   0   0   0   0
TXK  71  89  64  90  65 /  10   0   0   0   0
ELD  71  89  62  90  62 /  10   0   0   0   0
TYR  72  92  66  92  68 /  10   0   0   0   0
GGG  72  92  64  92  67 /  10   0   0   0   0
LFK  74  96  67  95  67 /  30  10  10   0  10

&&

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

15

Hazardous weather outlook, Aug 11, 11:49 AM CDT, 4 hours 15 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1149 AM CDT MON AUG 11 2014

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-
TXZ096-097-108>112-124>126-136>138-149>153-165>167-121200-
SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE-
COLUMBIA-UNION AR-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN-
UNION LA-DE SOTO-RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE LA-
NATCHITOCHES-WINN-GRANT-CALDWELL-LA SALLE-MCCURTAIN-BOWIE-
FRANKLIN-TITUS-CAMP-MORRIS-CASS-WOOD-UPSHUR-MARION-SMITH-GREGG-
HARRISON-CHEROKEE-RUSK-PANOLA-NACOGDOCHES-SHELBY-ANGELINA-
SAN AUGUSTINE-SABINE TX-
1149 AM CDT MON AUG 11 2014

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 SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON
OVER PORTIONS OF EAST TEXAS AND NORTH LOUISIANA...NEAR A WEAK
SURFACE FRONT THAT SHOULD REMAIN STATIONARY NEAR THE INTERSTATE 20
CORRIDOR. GIVEN THE EXTENT OF INSTABILITY AND MOISTURE IN PLACE
ALONG AND SOUTH OF THIS FRONT...ISOLATED STRONG STORMS CAN NOT BE
RULED OUT...CAPABLE OF PRODUCING BRIEF HEAVY RAINFALL AND LOCALLY
GUSTY WINDS. THESE SHOWERS AND THUNDERSTORMS SHOULD DIMINISH FROM
NORTH TO SOUTH THIS EVENING AS DRIER AIR ALOFT BEGINS TO SPILL
SOUTH INTO THE REGION. IN ADDITION...AFTERNOON TEMPERATURES WILL
CLIMB INTO THE MID AND UPPER 90S ACROSS PORTIONS OF EAST TEXAS AND
NORTHWEST LOUISIANA. WHEN COMBINED WITH THE HIGH HUMIDITY...HEAT
INDICES WILL RANGE FROM 100 TO 105 DEGREES THIS AFTERNOON. THOSE
THAT MUST BE OUTSIDE SHOULD DRINK PLENTY OF WATER AND TAKE
FREQUENT BREAKS FROM THE HEAT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF EMERGENCY MANAGERS...SKYWARN NETWORKS...AND AMATEUR
RADIO OPERATORS...SHOULD NOT BE NEEDED THIS AFTERNOON OR TONIGHT.

15

In the hours before

Special weather statement, Aug 11, 2:25 PM CDT, 1 hour 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
225 PM CDT MON AUG 11 2014

LAZ001-002-011-012-112015-
BIENVILLE-BOSSIER-CADDO-RED RIVER-
225 PM CDT MON AUG 11 2014

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 315 PM CDT...FOR THE FOLLOWING
PARISHES...

IN NORTHWEST LOUISIANA...
     RED RIVER...CADDO...BOSSIER AND BIENVILLE...

INCLUDING THE FOLLOWING LOCATIONS...
     RINGGOLD...

AT 222 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM 14 MILES SOUTH OF HAUGHTON...OR 15
MILES SOUTHEAST OF BOSSIER CITY...MOVING SOUTHEAST AT 20 MPH.

WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM.

19

Special weather statement, Aug 11, 2:30 PM CDT, 1 hour 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
230 PM CDT MON AUG 11 2014

LAZ014-021-112000-
CALDWELL-OUACHITA-
230 PM CDT MON AUG 11 2014

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 300 PM CDT...FOR THE FOLLOWING
PARISHES...

IN NORTH CENTRAL LOUISIANA...
     OUACHITA AND CALDWELL...

INCLUDING THE FOLLOWING LOCATIONS...
     RICHWOOD...

AT 229 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM NEAR RICHWOOD...OR 9 MILES SOUTHEAST
OF BROWNSVILLE-BAWCOMVILLE...MOVING SOUTHEAST AT 20 MPH.

WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM.

19

Local storm report, Aug 11, 3:24 PM CDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
324 PM CDT MON AUG 11 2014

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

0255 PM     TSTM WND DMG     JONESBORO               32.24N  92.71W
08/11/2014                   JACKSON            LA   LAW ENFORCEMENT

            LIMBS BROUGHT DOWN POWER LINES IN THE AREA

&&

EVENT NUMBER SHV1400508

25

Special weather statement, Aug 11, 3:39 PM CDT, 25 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
339 PM CDT MON AUG 11 2014

TXZ149-165-112130-
ANGELINA-CHEROKEE-
339 PM CDT MON AUG 11 2014

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 430 PM CDT...FOR THE FOLLOWING
COUNTIES...

IN NORTHEAST TEXAS...
     CHEROKEE...
IN EASTERN TEXAS...
     ANGELINA...

INCLUDING THE FOLLOWING LOCATIONS...
     ALTO...FOREST...MORRILL...POLLOK AND WELLS...

AT 333 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM 7 MILES WEST OF MORRILL...OR 14 MILES
SOUTH OF RUSK...MOVING SOUTHEAST AT 20 MPH.

PEA SIZE HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM.

19

Local storm report, Aug 11, 3:57 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
357 PM CDT MON AUG 11 2014

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

0330 PM     TSTM WND DMG     NACOGDOCHES             31.61N  94.65W
08/11/2014                   NACOGDOCHES        TX   TRAINED SPOTTER

            TREES DOWN IN CENTRAL HEIGHTS AND NACOGDOCHES... POWER
            OUT IN SOME AREAS AS WELL

&&

EVENT NUMBER SHV1400509

25

Special weather statement, Aug 11, 3:59 PM CDT, 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
359 PM CDT MON AUG 11 2014

TXZ152-165-112145-
ANGELINA-NACOGDOCHES-
359 PM CDT MON AUG 11 2014

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 445 PM CDT...FOR THE FOLLOWING
COUNTIES...

IN EASTERN TEXAS...
     NACOGDOCHES AND ANGELINA...

INCLUDING THE FOLLOWING LOCATIONS...
     MELROSE...NACOGDOCHES AND WODEN...

AT 358 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM NEAR NACOGDOCHES...MOVING SOUTHEAST
AT 15 MPH.

WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM.

19

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 7:35 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Claiborne, Lincoln	40 min
Aug 11, 3:27 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell, Grant, LaSalle, Natchitoches, Red River, Winn	48 min
Aug 11, 5:38 PM CDT	Severe Thunderstorm Warning	SHV	Sabine	37 min
Aug 11, 6:14 PM CDT	Severe Thunderstorm Warning	SHV	De Soto, Sabine	36 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2014 Every severe thunderstorm warning in 2014

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.