Alert archive / Arkansas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 146, NWS Shreveport, LA

April 29, 2016Bowie County, Red River County, Texas; Howard County, Little River County, Sevier County, Arkansas; McCurtain County, Oklahoma

NWS Shreveport, LA issued this severe thunderstorm warning at Apr 29, 2016, 10:09 PM CDT for Bowie County, Red River County, Texas; Howard County, Little River County, Sevier County, Arkansas; McCurtain County, Oklahoma. It was in force for 66 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: Apr 29, 2016, 10:09 PM CDT (03:09 UTC)
Expired: Apr 29, 2016, 11:15 PM CDT
In force: 66 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Howard County, AR, Little River County, AR, Sevier County, AR, McCurtain County, OK, Bowie County, TX, Red River County, TX

The radar

The Western Arkansas radar (KSRX), 137 km from the middle of the area, began a volume at 03:09 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
Apr 29, 11:09 PM CDT	TSTM WND GST 70	Ben Lomond, AR

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 60 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
Apr 29, 9:58 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 00:00Z, 3.2 hours before the alert went out and 184 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: 835 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 591 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 455 m²/s²
0-3 km storm-relative helicity: 577 m²/s²
Significant tornado parameter: 2.9
Supercell composite: 11.8

Open this sounding in Storm Lab

The text

As transmitted.

159 
WUUS54 KSHV 300309
SVRSHV
ARC061-081-133-OKC089-TXC037-387-300415-
/O.NEW.KSHV.SV.W.0146.160430T0309Z-160430T0415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1009 PM CDT FRI APR 29 2016

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN LITTLE RIVER COUNTY IN SOUTHWESTERN ARKANSAS...
  CENTRAL HOWARD COUNTY IN SOUTHWESTERN ARKANSAS...
  SEVIER COUNTY IN SOUTHWESTERN ARKANSAS...
  SOUTHEASTERN MCCURTAIN COUNTY IN SOUTHEASTERN OKLAHOMA...
  EAST CENTRAL RED RIVER COUNTY IN NORTHEASTERN TEXAS...
  NORTHWESTERN BOWIE COUNTY IN NORTHEASTERN TEXAS...

* UNTIL 1115 PM CDT

* AT 1009 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 11 MILES
  SOUTHEAST OF IDABEL...OR 19 MILES WEST OF FOREMAN...MOVING NORTHEAST
  AT 45 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  DE QUEEN...MINERAL SPRINGS...HORATIO...FOREMAN...IDABEL...LOCKESBURG...
  WILTON...TOLLETTE...WINTHROP...GILLHAM...BEN LOMOND...ARKINDA...OAK
  GROVE...HAWORTH...CENTRAL...BROWNTOWN...SHINEWELL...LEBANON...EAGLETOWN
  AND WEST LINE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3381 9390 3358 9482 3378 9491 3419 9447
      3419 9425 3427 9424 3427 9426 3435 9426
      3436 9422
TIME...MOT...LOC 0309Z 238DEG 44KT 3376 9474 

HAIL...1.00IN
WIND...60MPH
 
$$

06

2 follow-up statements

899 
WWUS54 KSHV 300341
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1041 PM CDT FRI APR 29 2016

TXC387-300348-
/O.CAN.KSHV.SV.W.0146.000000T0000Z-160430T0415Z/
RED RIVER TX-
1041 PM CDT FRI APR 29 2016

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL RED RIVER COUNTY
IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS  WEAKENED AND
MOVED OUT OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN
CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FOR
SOUTHWESTERN ARKANSAS...SOUTHEASTERN OKLAHOMA...AND NORTHEASTERN
TEXAS.

LAT...LON 3361 9469 3390 9455 3419 9447 3419 9425
      3427 9424 3427 9426 3435 9426 3436 9422
      3381 9390
TIME...MOT...LOC 0338Z 240DEG 38KT 3386 9446 

$$

ARC061-081-133-OKC089-TXC037-300415-
/O.CON.KSHV.SV.W.0146.000000T0000Z-160430T0415Z/
LITTLE RIVER AR-HOWARD AR-SEVIER AR-MCCURTAIN OK-BOWIE TX-
1041 PM CDT FRI APR 29 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR NORTHWESTERN LITTLE RIVER...CENTRAL HOWARD...SEVIER...
SOUTHEASTERN MCCURTAIN AND NORTHWESTERN BOWIE COUNTIES...

AT 1038 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ARKINDA...OR 8
MILES SOUTHWEST OF HORATIO...MOVING NORTHEAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
DE QUEEN...MINERAL SPRINGS...HORATIO...FOREMAN...LOCKESBURG...WILTON...
TOLLETTE...WINTHROP...GILLHAM...BEN LOMOND...ARKINDA...OAK GROVE...CENTRAL...
BROWNTOWN...SHINEWELL...LEBANON...WEST LINE...SILVER RIDGE...WEST OTIS AND
PROVO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

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

&&

LAT...LON 3361 9469 3390 9455 3419 9447 3419 9425
      3427 9424 3427 9426 3435 9426 3436 9422
      3381 9390
TIME...MOT...LOC 0338Z 240DEG 38KT 3386 9446 

HAIL...1.00IN
WIND...60MPH
 
$$

503 
WWUS54 KSHV 300357
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1057 PM CDT FRI APR 29 2016

OKC089-TXC037-300406-
/O.CAN.KSHV.SV.W.0146.000000T0000Z-160430T0415Z/
MCCURTAIN OK-BOWIE TX-
1057 PM CDT FRI APR 29 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MCCURTAIN AND
NORTHWESTERN BOWIE COUNTIES IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED AND
MOVED OUT OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN
CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FOR
SOUTHWESTERN ARKANSAS.

LAT...LON 3367 9446 3392 9440 3408 9438 3419 9425
      3427 9424 3427 9426 3435 9426 3436 9422
      3381 9390
TIME...MOT...LOC 0356Z 238DEG 42KT 3395 9426 

$$

ARC061-081-133-300415-
/O.CON.KSHV.SV.W.0146.000000T0000Z-160430T0415Z/
LITTLE RIVER AR-HOWARD AR-SEVIER AR-
1057 PM CDT FRI APR 29 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR NORTHWESTERN LITTLE RIVER...CENTRAL HOWARD AND SEVIER COUNTIES...

AT 1056 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR LOCKESBURG...OR
NEAR HORATIO...MOVING NORTHEAST AT 50 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
DE QUEEN...MINERAL SPRINGS...HORATIO...FOREMAN...LOCKESBURG...WILTON...
TOLLETTE...WINTHROP...BEN LOMOND...OAK GROVE...CENTRAL...BROWNTOWN...
GENEVA...LEBANON...BELLVIEW...SILVER RIDGE AND PROVO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
MOVE INDOORS IMMEDIATELY. LIGHTNING IS ONE OF NATURE'S LEADING
KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

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

&&

LAT...LON 3367 9446 3392 9440 3408 9438 3419 9425
      3427 9424 3427 9426 3435 9426 3436 9422
      3381 9390
TIME...MOT...LOC 0356Z 238DEG 42KT 3395 9426 

HAIL...1.00IN
WIND...60MPH
 
$$

06

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 29, 6:54 PM CDT, 3 hours 15 minutes earlier.

Area forecast discussion, Apr 29, 6:54 PM CDT, 3 hours 15 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
654 PM CDT FRI APR 29 2016

.AVIATION...
FOR THE 30/00Z TAFS...ANOTHER COMPLEX FORECAST ONCE AGAIN WITH
AMENDMENTS LIKELY. WIDESPREAD CONVECTION...INCLUDING OCCASIONAL
SEVERE TSTMS...ARE AFFECTING MOST TERMINALS IN E TX NORTH OF
I-20/SRN AR/SE OK. SCATTERED STRONG/SEVERE CONVECTION IS ONGOING
FARTHER SOUTH OF I-20 IN E TX. STRONG TO SEVERE TSTMS WILL AFFECT
ALL TAF SITES DURING THE PERIOD AND FLIGHT CONDITIONS WILL LIKELY
FLUCTUATE. A MORE SOLID LINE OF TSTMS SHOULD DEVELOP AFTER 30/06Z
AND WILL MOVE ACROSS THE AREA AND SHOULD BE MOVING EAST OF THE
REGION AFTER 30/21Z. A FEW LINGERING TSTMS WILL BE POSSIBLE
THROUGH 01/00Z.

/09/

&&

.PREV DISCUSSION... /ISSUED 412 PM CDT FRI APR 29 2016/

DISCUSSION...
MULTI-THREAT EVENT CONTINUES ACROSS THE REGION...AS A STRONG UPPER
LEVEL LOW MOVES INTO THE SRN PLAINS. IN ADDITION TO THE SEVERE
WEATHER THREAT...TWO SEPARATE HEAVY RAINFALL AXES HAVE SET
UP...ONE OVER OUR NE TX COUNTIES FROM NEAR TYLER TO DEKALB...AND
ANOTHER ALONG THE RED RIVER OF NE TX/SE OK EWD THROUGH NEAR EL
DORADO. HEAVY RAINFALL IS EXPECTED TO CONTINUE SPREADING EWD
TONIGHT THROUGH SATURDAY...GRADUALLY SHIFTING THE FLASH FLOOD
THREAT EWD THROUGH THE EVENT. HAVE ADDED THE REMAINDER OF THE CWA TO
THE FF WATCH...ALTHOUGH SOME AREAS WILL NOT SEE HEAVY RAINFALL
UNTIL LATE TONIGHT/EARLY SATURDAY MORNING. HAVE ALSO MADE SOME
CHANGES TO THE EXPIRATION TIME...SETTING MUCH OF THE WATCH TO
EXPIRE AT 00Z SUNDAY. ALLOWED THE EXTREME SERN PORTIONS TO
CONTINUE THROUGH 12Z SUN. SEVERE THREAT WILL CONTINUE THROUGH AT
LEAST THE FIRST HALF OF SATURDAY...AS THE ASSOCIATED COLD FRONT
MOVES INTO THE REGION. THE FRONT IS EXPECTED TO SLOW...AS THE SFC
LOW LIFTS NEWD...AND THE SEVERE THREAT WILL LIKELY DIMINISH WITH
THAT. RAIN LOOKS TO FINALLY DIMINISH/END SUN AFTERNOON/EVENING.
TEMPS LOOK TO RUN COOLER IN THE WAKE OF THE COLD FRONT AS WE MOVE
INTO MONDAY.

MODELS IN BETTER AGREEMENT AS WE MOVE ON TO OUR NEXT UPPER
DISTURBANCE. SHWRS/TSTMS WILL MOVE BACK INTO THE REGION FROM THE
W AS THE STALLED FRONT MOVES BACK NWD AND ACTS AS A FOCUS FOR
DEVELOPMENT. ANOTHER ROUND OF HEAVY RAIN IS LOOKING INCREASINGLY
LIKELY...AND WE MAY SEE MORE FLASH FLOODING/RIVER FLOODING AS A
RESULT.

DESPITE THIS BETTER AGREEMENT...MODELS DIVERGE AGAIN FOR THE MID
PART OF THE WORK WEEK WITH THE FINAL KICKER TROF. HOWEVER...ATTM
IT LOOKS LIKE WE WILL SEE AN END OF PRECIP BY TUE NIGHT AS A
FINALLY PUSH OF DRY AIR FILTERS IN THE WAKE OF THE COLD FRONT.
OUR TREND OF COOLER THAN NORMAL TEMPS WILL CONTINUE THROUGH THE
END OF THE PD. /12/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  69  82  67  82 /  90  70  50  20
MLU  70  81  68  83 /  70  70  70  30
DEQ  66  78  58  81 /  90  50  20  10
TXK  68  80  62  82 /  90  70  30  10
ELD  69  80  65  83 /  90  70  50  20
TYR  68  82  63  81 /  90  50  20  10
GGG  69  83  65  82 /  90  70  30  10
LFK  70  81  69  82 /  90  70  50  50

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...FLASH FLOOD WATCH THROUGH SATURDAY EVENING FOR ARZ050-051-
     059>061-070>073.

LA...FLASH FLOOD WATCH THROUGH SATURDAY EVENING FOR LAZ001>004.

     FLASH FLOOD WATCH THROUGH SUNDAY MORNING FOR LAZ005-006-010>014-
     017>022.

OK...FLASH FLOOD WATCH THROUGH SATURDAY EVENING FOR OKZ077.

TX...FLASH FLOOD WATCH THROUGH SATURDAY EVENING FOR TXZ096-097-
     108>112-124>126-136>138-149>151.

     FLASH FLOOD WATCH THROUGH SUNDAY MORNING FOR TXZ152-153-165>167.

&&

09

Hazardous weather outlook, Apr 29, 11:52 AM CDT, 10 hours 17 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1152 AM CDT FRI APR 29 2016

ARZ050-051-059>061-070-OKZ077-TXZ096-097-301700-
SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-MCCURTAIN-
RED RIVER-BOWIE-
1152 AM CDT FRI APR 29 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
ARKANSAS...SOUTHEAST OKLAHOMA...AND NORTHEAST TEXAS.

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

STRONG TO SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING LARGE
HAIL...DAMAGING THUNDERSTORM WIND GUSTS...AND ISOLATED
TORNADOES WILL BE POSSIBLE THIS MORNING THROUGH THE AFTERNOON
HOURS. IN ADDITION TO THE SEVERE WEATHER THREAT...THESE STORMS
WILL PRODUCE EXCESSIVE HEAVY RAINFALL...WHICH COULD RESULT IN
LOCALIZED FLASH FLOODING. THIS FLASH FLOOD THREAT WILL CONTINUE
INTO THE OVERNIGHT HOURS AS WELL AS AN UPPER LEVEL DISTURBANCE
MOVES INTO THE REGION FROM THE SOUTHWEST.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE DURING THE DAY SATURDAY
WITH A SEVERE THUNDERSTORM AND HEAVY RAINFALL THREAT ALONG AND
EAST OF THE INTERSTATE 30 CORRIDOR OF NORTHEAST TEXAS AND
SOUTHWEST ARKANSAS. THIS THREAT WILL LIKELY COME TO AN END LATE
SATURDAY EVENING WITH THE PASSAGE OF A COLD FRONT.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL...AMATEUR RADIO
OPERATORS...AND STORM SPOTTERS WILL LIKELY BE NEEDED TODAY INTO
TONIGHT...AND POSSIBLY AGAIN ON SATURDAY.

ARZ071>073-LAZ001>006-010>014-017>022-TXZ108>112-124>126-136>138-
149>153-165>167-301700-
LAFAYETTE-COLUMBIA-UNION-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN-
DE SOTO-RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE-NATCHITOCHES-
WINN-GRANT-CALDWELL-LA SALLE-FRANKLIN-TITUS-CAMP-MORRIS-CASS-WOOD-
UPSHUR-MARION-SMITH-GREGG-HARRISON-CHEROKEE-RUSK-PANOLA-
NACOGDOCHES-SHELBY-ANGELINA-SAN AUGUSTINE-
1152 AM CDT FRI APR 29 2016

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

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

STRONG TO SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING LARGE
HAIL...DAMAGING WINDS...AND ISOLATED TORNADOES WILL BE POSSIBLE
THIS AFTERNOON AND EVENING...MAINLY ALONG AND NORTH OF A LINE
FROM THE TOLEDO BEND DAM TO MONROE LOUISIANA. THIS SEVERE WEATHER
THREAT WILL TRANSITION INTO A HEAVY RAINFALL EVENT LATER THIS
EVENING AND TONIGHT...AS STORMS BEGIN TO TRAIN.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE DURING THE DAY SATURDAY
WITH A SEVERE THUNDERSTORM AND HEAVY RAINFALL THREAT ALONG AND
EAST OF THE INTERSTATE 30 CORRIDOR OF NORTHEAST TEXAS AND
SOUTHWEST ARKANSAS. THIS WILL INCLUDE MOST OF SOUTHWEST
ARKANSAS...ALL OF NORTHERN LOUISIANA AND THE EASTERN THIRD OF
NORTHEAST TEXAS. THIS THREAT WILL LIKELY COME TO AN END LATE
SATURDAY EVENING WITH THE PASSAGE OF A COLD FRONT.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL...AMATEUR RADIO
OPERATORS...AND STORM SPOTTERS WILL LIKELY BE NEEDED TODAY INTO
TONIGHT...AND POSSIBLY AGAIN ON SATURDAY.

12

In the hours before

Special weather statement, Apr 29, 9:32 PM CDT, 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
932 PM CDT FRI APR 29 2016

LAZ010-TXZ150>153-166-300315-
DE SOTO LA-SAN AUGUSTINE TX-RUSK TX-NACOGDOCHES TX-SHELBY TX-
PANOLA TX-
932 PM CDT FRI APR 29 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN DE SOTO PARISH...
SOUTHEASTERN RUSK...SOUTHERN PANOLA...NORTHERN SAN AUGUSTINE...
EASTERN NACOGDOCHES AND SHELBY COUNTIES UNTIL 1015 PM CDT...

AT 931 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
GARRISON...OR 13 MILES NORTH OF NACOGDOCHES...MOVING NORTHEAST AT 60
MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
CARTHAGE...CENTER...SAN AUGUSTINE...LOGANSPORT...TENAHA...TIMPSON...
GARRISON...JOAQUIN...NEUVILLE...ETOILE...SHELBYVILLE...BLAND LAKE...WODEN...
MARTINSVILLE...PATROON...MELROSE...APPLEBY...MOUNT ENTERPRISE...CHIRENO
AND HUXLEY.

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.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR NORTHWESTERN
LOUISIANA...AND NORTHEASTERN TEXAS.

LAT...LON 3132 9444 3198 9480 3226 9404 3220 9404
      3219 9396 3185 9378 3184 9388 3181 9387
      3180 9384 3177 9382 3175 9384 3171 9382
      3170 9380 3167 9383 3162 9382 3161 9384
      3159 9383 3161 9390 3157 9398 3150 9399
TIME...MOT...LOC 0231Z 229DEG 51KT 3179 9457

19

Local storm report, Apr 29, 9:35 PM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
935 PM CDT FRI APR 29 2016

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

0820 PM     TSTM WND DMG     MOUNT ENTERPRISE        31.91N  94.68W
04/29/2016                   RUSK               TX   911 CALL CENTER

            NUMEROUS TREES DOWN...POWER LINES DOWN

&&

EVENT NUMBER SHV1600417

21

Local storm report, Apr 29, 9:52 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
952 PM CDT FRI APR 29 2016

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

0805 PM     TSTM WND DMG     7 N JACKSONVILLE        32.07N  95.26W
04/29/2016                   CHEROKEE           TX   911 CALL CENTER

            NUMEROUS TREES DOWN...POWER LINES DOWN

&&

EVENT NUMBER SHV1600418

21

Special weather statement, Apr 29, 9:54 PM CDT, 15 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
954 PM CDT FRI APR 29 2016

ARZ070-071-LAZ001-002-TXZ126-300345-
MILLER AR-LAFAYETTE AR-BOSSIER LA-CADDO LA-MARION TX-
954 PM CDT FRI APR 29 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN LAFAYETTE AND SOUTH
CENTRAL MILLER COUNTIES...NORTHWESTERN CADDO...NORTHWESTERN BOSSIER
PARISHES IN NORTHWESTERN LOUISIANA AND NORTHEASTERN MARION COUNTIES
UNTIL 1045 PM CDT...

AT 954 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR OIL CITY...OR 23 MILES SOUTHEAST OF ATLANTA...MOVING NORTHEAST
AT 30 MPH.

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

LOCATIONS IMPACTED INCLUDE...
VIVIAN...OIL CITY...HOSSTON...RODESSA...IDA...GILLIAM...GRAY...CANALE...
KIBLAH AND PLEASANT VALLEY.

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.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR SOUTHWESTERN
ARKANSAS...NORTHWESTERN LOUISIANA...AND NORTHEASTERN TEXAS.

LAT...LON 3288 9406 3288 9404 3291 9404 3316 9392
      3302 9361 3270 9392 3279 9410
TIME...MOT...LOC 0254Z 210DEG 26KT 3282 9396

19

Local storm report, Apr 29, 10:04 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1004 PM CDT FRI APR 29 2016

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

0930 PM     FLASH FLOOD      ASHDOWN                 33.67N  94.13W
04/29/2016                   LITTLE RIVER       AR   911 CALL CENTER

            NUMEROUS COUNTY ROADS FLOODED

&&

EVENT NUMBER SHV1600419

21

Local storm report, Apr 29, 10:05 PM CDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1005 PM CDT FRI APR 29 2016

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

0940 PM     TSTM WND DMG     WILTON                  33.74N  94.15W
04/29/2016                   LITTLE RIVER       AR   911 CALL CENTER

            A FEW TREES DOWN...POWER LINES DOWN

&&

EVENT NUMBER SHV1600420

21

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 7:03 PM CDT	Special Weather Statement	SHV	Cherokee, Rusk	42 min
Apr 29, 7:13 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Cass, Morris, Titus, Upshur	28 min
Apr 29, 7:16 PM CDT	Tornado Warning	SHV	Camp, Cass, Harrison, Marion, Morris, Upshur	23 min
Apr 29, 7:24 PM CDT	Flash Flood Warning	SHV	Bowie, Red River	10 hr
Apr 29, 7:25 PM CDT	Special Weather Statement	SHV	Upshur	35 min
Apr 29, 7:35 PM CDT	Tornado Warning	SHV	Cherokee, Nacogdoches, Rusk	40 min
Apr 29, 7:38 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Gregg, Rusk, Smith, Upshur	52 min
Apr 29, 7:38 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Cass, Marion, Morris, Upshur	21 min
Apr 29, 7:45 PM CDT	Flash Flood Warning	SHV	Smith, Upshur, Wood	10 hr
Apr 29, 7:59 PM CDT	Severe Thunderstorm Warning	SHV	Angelina, Cherokee, Nacogdoches, Rusk, Shelby	46 min
Apr 29, 8:41 PM CDT	Special Weather Statement	SHV	Angelina, San Augustine, Shelby	49 min
Apr 29, 8:46 PM CDT	Severe Thunderstorm Warning	SHV	Nacogdoches, Panola, Rusk, San Augustine, Shelby	44 min
Apr 29, 9:08 PM CDT	Special Weather Statement	SHV	Marion	52 min
Apr 29, 9:15 PM CDT	Special Weather Statement	SHV	Harrison, Rusk	45 min
Apr 29, 9:21 PM CDT	Flash Flood Warning	SHV	Cass, Gregg, Harrison, Marion, Panola, Rusk	8 hr
Apr 29, 9:32 PM CDT	Special Weather Statement	SHV	Shelby	43 min
Apr 29, 10:27 PM CDT	Tornado Warning	SHV	Harrison, Panola	33 min
Apr 29, 10:57 PM CDT	Tornado Warning	SHV	Harrison, Marion	33 min
Apr 29, 11:09 PM CDT	Flash Flood Warning	SHV	Cherokee, Nacogdoches	8 hr
Apr 29, 11:25 PM CDT	Severe Thunderstorm Warning	SHV	Bowie, Cass	65 min
Apr 29, 11:32 PM CDT	Flash Flood Warning	SHV	Bowie, Cass, Harrison, Marion, Morris, Upshur	8 hr
Apr 29, 11:38 PM CDT	Tornado Warning	SHV	Cass, Harrison, Marion	37 min
Apr 30, 12:13 AM CDT	Severe Thunderstorm Warning	SHV	Cass, Gregg, Harrison, Marion, Panola, Rusk	62 min
Apr 30, 12:35 AM CDT	Tornado Warning	SHV	Harrison	55 min
Apr 30, 12:58 AM CDT	Tornado Warning	SHV	Harrison, Marion	47 min
Apr 30, 3:34 AM CDT	Areal Flood Advisory	SHV	Angelina, Nacogdoches	3 hr
Apr 30, 3:42 AM CDT	Areal Flood Advisory	SHV	Panola	3 hr
Apr 30, 3:45 AM CDT	Special Weather Statement	SHV	Sabine, Shelby	45 min
Apr 30, 3:55 AM CDT	Severe Thunderstorm Warning	SHV	Angelina, Nacogdoches, Sabine, San Augustine	65 min
Apr 30, 4:16 AM CDT	River Flood Warning	SHV	Angelina, Cherokee, Nacogdoches	6 days
Apr 30, 4:20 AM CDT	River Flood Warning	SHV	Panola, Shelby	9 days
Apr 30, 4:22 AM CDT	River Flood Warning	SHV	Nacogdoches, Rusk	3 days
Apr 30, 4:23 AM CDT	River Flood Warning	SHV	Cherokee, Nacogdoches, Rusk, Smith	4 days
Apr 30, 4:25 AM CDT	River Flood Warning	SHV	Wood	5 days
Apr 30, 4:25 AM CDT	River Flood Warning	SHV	Gregg	55 hr
Apr 30, 4:26 AM CDT	River Flood Warning	SHV	Upshur, Wood	4 days
Apr 30, 4:30 AM CDT	Severe Thunderstorm Warning	SHV	Shelby	60 min
Apr 30, 4:54 AM CDT	Tornado Warning	SHV	Sabine, San Augustine	49 min
Apr 30, 5:21 AM CDT	Areal Flood Warning	SHV	Bowie, Camp, Cass, Franklin, Morris, Red River and 1 more	6 hr
Apr 30, 5:28 AM CDT	Areal Flood Warning	SHV	Gregg, Harrison, Panola, Rusk, Shelby	6 hr
Apr 30, 5:46 AM CDT	Areal Flood Warning	SHV	Smith, Upshur, Wood	6 hr
Apr 30, 6:15 AM CDT	Special Weather Statement	SHV	Sabine	45 min
Apr 30, 7:03 AM CDT	Areal Flood Warning	SHV	Cherokee, Nacogdoches	6 hr
Apr 30, 7:27 AM CDT	Areal Flood Warning	SHV	Bowie, Cass, Marion	6 hr
Apr 30, 7:36 AM CDT	River Flood Warning	SHV	Cass, Harrison, Marion	13 days
Apr 30, 7:37 AM CDT	River Flood Warning	SHV	Cass, Marion	8 days
Apr 30, 7:38 AM CDT	River Flood Warning	SHV	Gregg, Harrison, Marion, Upshur	7 days
Apr 30, 11:47 AM CDT	Areal Flood Warning	SHV	Gregg, Harrison, Panola, Rusk, Shelby	3 hr
Apr 30, 1:27 PM CDT	Areal Flood Warning	SHV	Bowie, Cass, Marion	3 hr
Apr 29, 9:21 PM CDT	Special Weather Statement	SHV	Hempstead	39 min
Apr 29, 11:15 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Howard, Little River, Nevada, Sevier	60 min
Apr 29, 11:30 PM CDT	Tornado Warning	SHV	Lafayette	30 min
Apr 29, 11:59 PM CDT	Tornado Warning	SHV	Lafayette	46 min
Apr 30, 12:25 AM CDT	Tornado Warning	SHV	Columbia, Lafayette	50 min
Apr 30, 12:58 AM CDT	Tornado Warning	SHV	Columbia, Lafayette, Nevada	47 min
Apr 30, 1:27 AM CDT	Flash Flood Warning	SHV	Columbia, Nevada	5 hr
Apr 30, 2:12 AM CDT	Special Weather Statement	SHV	Columbia	48 min
Apr 30, 2:44 AM CDT	Tornado Warning	SHV	Columbia, Union	61 min
Apr 30, 4:17 AM CDT	River Flood Warning	SHV	Little River, Sevier	53 hr
Apr 30, 6:01 AM CDT	Areal Flood Warning	SHV	Columbia	6 hr

Nearby

Severe Thunderstorm Warnings in Arkansas, 2016 Severe Thunderstorm Warnings in Texas, 2016 Severe Thunderstorm Warnings in Oklahoma, 2016 Every severe thunderstorm warning in 2016

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.