Alert archive / Louisiana / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 191, NWS Shreveport, LA

June 18, 20166 parishes in Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Jun 18, 2016, 12:46 PM CDT for 6 parishes in Louisiana. It was in force for 59 min. 2 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: Jun 18, 2016, 12:46 PM CDT (17:46 UTC)
Expired: Jun 18, 2016, 1:45 PM CDT
In force: 59 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, De Soto Parish, LA, Red River Parish, LA, Webster Parish, LA

The radar

The Shreveport radar (KSHV), 64 km from the middle of the area, began a volume at 17:46 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
Jun 18, 12:55 PM CDT	TSTM WND DMG	Heflin, LA	TREES DOWN ON 371 WITH POWER LINES... ALSO FRANKLIN ROAD... WEBSTER... ART CAMP ROADS
Jun 18, 1:51 PM CDT	TSTM WND DMG	6 Sse Shreveport, LA	TREE FELL ON HOME ON GREYWOOD DRIVE IN KEITHVILLE

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 9 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, 5.8 hours before the alert went out and 61 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: 2685 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 906 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted.

930 
WUUS54 KSHV 181746
SVRSHV
LAC013-015-017-031-081-119-181845-
/O.NEW.KSHV.SV.W.0191.160618T1746Z-160618T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1246 PM CDT SAT JUN 18 2016

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CADDO PARISH IN NORTHWESTERN LOUISIANA...
  WESTERN BIENVILLE PARISH IN NORTHWESTERN LOUISIANA...
  SOUTHERN BOSSIER PARISH IN NORTHWESTERN LOUISIANA...
  SOUTHERN WEBSTER PARISH IN NORTHWESTERN LOUISIANA...
  CENTRAL DE SOTO PARISH IN NORTHWESTERN LOUISIANA...
  RED RIVER PARISH IN NORTHWESTERN LOUISIANA...

* UNTIL 145 PM CDT

* AT 1246 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM MINDEN TO NEAR RINGGOLD TO 6 MILES NORTH OF
  CAMPTI... MOVING WEST AT 20 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  SHREVEPORT...BOSSIER CITY...MINDEN...MANSFIELD...HAUGHTON...
  BLANCHARD...COUSHATTA...BENTON...STONEWALL...RINGGOLD...SIBLEY...
  DOYLINE...DUBBERLY...DIXIE INN...HEFLIN...FOSTERS...EASTWOOD...
  MARTIN...SOUTH MANSFIELD AND HALL SUMMIT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3185 9362 3220 9385 3270 9387 3271 9320
      3215 9308 3214 9319 3211 9315 3209 9316
      3206 9314 3201 9316 3197 9313 3197 9324
      3191 9324 3189 9328 3190 9335 3193 9336
      3192 9342 3193 9342 3191 9344 3184 9344
TIME...MOT...LOC 1746Z 078DEG 16KT 3263 9328 3226 9330 3198 9313 

HAIL...<.75IN
WIND...60MPH
 
$$

12

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 18, 10:33 AM CDT, 2 hours 13 minutes earlier.

Area forecast discussion, Jun 18, 10:33 AM CDT, 2 hours 13 minutes before

Area Forecast Discussion
National Weather Service Shreveport LA
1033 AM CDT SAT JUN 18 2016

.DISCUSSION...
Showers and thunderstorms along a surface boundary continuing to
generate convection across portions of north Louisiana this
morning. For this update, went ahead and increased pops based on
high-res models. Otherwise, heat index values currently above 100
degrees across portions of deep east Texas and Northwest
Louisiana. Heat advisory for this area remains in effect through 7
PM. /05/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  94  74  91  73 /  30  20  30  20
MLU  93  73  89  72 /  30  10  40  20
DEQ  92  71  90  71 /  20  10  20  20
TXK  93  72  90  72 /  20  10  20  20
ELD  93  71  89  71 /  30  10  20  20
TYR  94  74  91  73 /  20  20  20  20
GGG  94  74  91  72 /  20  20  20  20
LFK  94  74  91  72 /  30  20  40  20

&&

.SHV Watches/Warnings/Advisories...
AR...None.
LA...Heat Advisory until 7 PM CDT this evening for LAZ001>003-010>012-
     017>020-022.

OK...None.
TX...Heat Advisory until 7 PM CDT this evening for TXZ108>112-124>126-
     136>138-149>153-165>167.

&&

05

Hazardous weather outlook, Jun 18, 11:49 AM CDT, 57 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1149 AM CDT SAT JUN 18 2016

LAZ001>003-010>012-017>020-022-TXZ108>112-124>126-136>138-149>153-
165>167-191700-
CADDO-BOSSIER-WEBSTER-DE SOTO-RED RIVER-BIENVILLE-SABINE-
NATCHITOCHES-WINN-GRANT-LA SALLE-FRANKLIN-TITUS-CAMP-MORRIS-CASS-
WOOD-UPSHUR-MARION-SMITH-GREGG-HARRISON-CHEROKEE-RUSK-PANOLA-
NACOGDOCHES-SHELBY-ANGELINA-SAN AUGUSTINE-
1149 AM CDT SAT JUN 18 2016

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

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

A HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM THIS EVENING.
HOT TEMPERATURES AND HIGH RELATIVE HUMIDITY VALUES WILL RESULT IN
HEAT INDEX VALUES RANGING FROM 105 TO 107 DEGREES OVER THE AREA.
SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE. SOME STORMS
MAY BE SEVERE PRODUCING DAMAGING WINDS AND HEAVY RAINFALL THROUGH
THE AFTERNOON.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER
MUCH OF THE AREA SUNDAY AND MONDAY AS AN UPPER LEVEL DISTURBANCE
MOVES INTO EAST TEXAS AND NORTH LOUISIANA. ISOLATED STRONG STORMS
CAN NOT BE RULED OUT...WITH LOCALLY GUSTY WINDS AND BRIEF HEAVY
RAINFALL POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF EMERGENCY MANAGERS...SKYWARN NETWORKS...AND AMATEUR
RADIO OPERATORS...IS NOT EXPECTED THROUGH TONIGHT.

ARZ050-051-059>061-070>073-LAZ004>006-013-014-021-OKZ077-TXZ096-
097-191700-
SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE-
COLUMBIA-UNION-CLAIBORNE-LINCOLN-JACKSON-OUACHITA-CALDWELL-
MCCURTAIN-RED RIVER-BOWIE-
1149 AM CDT SAT JUN 18 2016

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

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

ISOLATED SHOWERS AND THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON. BRIEF
HEAVY RAINFALL AND LOCALLY GUSTY WINDS WILL BE POSSIBLE IN THE
STRONGER STORMS. AS A RESULT OF THE PASSAGE OF THE FRONT THIS
MORNING...SLIGHTLY COOLER AND LESS HUMID CONDITIONS ARE EXPECTED
THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER MUCH OF THE
AREA SUNDAY AND MONDAY AS AN UPPER LEVEL DISTURBANCE MOVES INTO
EAST TEXAS AND NORTH LOUISIANA. ISOLATED STRONG STORMS MAY BE
POSSIBLE WITH LOCALLY GUSTY WINDS AND BRIEF HEAVY RAINFALL BEING
THE MAIN THREATS.

.SPOTTER INFORMATION STATEMENT...

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

05

In the hours before

Special weather statement, Jun 18, 10:46 AM CDT, 2 hours before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1046 AM CDT SAT JUN 18 2016

LAZ013-019-181630-
JACKSON LA-WINN LA-
1046 AM CDT SAT JUN 18 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN JACKSON AND
NORTHWESTERN WINN PARISHES UNTIL 1130 AM CDT...

AT 1046 AM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR JONESBORO...MOVING SOUTH AT 15 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
WINNFIELD...JONESBORO...HODGE...NORTH HODGE...DODSON...EAST HODGE...
CALVIN...SIKES...HUDSON AND JOYCE.

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 3185 9249 3194 9288 3195 9287 3195 9288
      3199 9289 3215 9283 3215 9282 3216 9282
      3218 9280 3221 9280 3223 9277 3232 9277
      3222 9248
TIME...MOT...LOC 1546Z 010DEG 14KT 3219 9269

12

Special weather statement, Jun 18, 11:41 AM CDT, 1 hour 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1141 AM CDT SAT JUN 18 2016

LAZ011-012-018-181730-
RED RIVER LA-NATCHITOCHES LA-BIENVILLE LA-
1141 AM CDT SAT JUN 18 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN BIENVILLE...NORTH
CENTRAL NATCHITOCHES AND EAST CENTRAL RED RIVER PARISHES UNTIL 1230
PM CDT...

AT 1141 AM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 12
MILES WEST OF JONESBORO...MOVING SOUTHWEST AT 30 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
COUSHATTA...MARTIN...SALINE...LUCKY...ASHLAND...EDGEFIELD...
BIENVILLE...FRIENDSHIP...CHESTNUT...LIBERTY HILL AND BLACK LAKE.

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 3215 9293 3215 9294 3214 9293 3191 9316
      3207 9337 3241 9287 3232 9277 3230 9277
TIME...MOT...LOC 1641Z 045DEG 25KT 3226 9292

12

Local storm report, Jun 18, 12:27 PM CDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1227 PM CDT SAT JUN 18 2016

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

1112 AM     TSTM WND DMG     2 NW DODSON             32.10N  92.68W
06/18/2016                   WINN               LA   LAW ENFORCEMENT

            TREES DOWN ON HWY 126 NW OF DODSON

&&

EVENT NUMBER SHV1600591

25

Local storm report, Jun 18, 12:30 PM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1230 PM CDT SAT JUN 18 2016

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

1112 AM     TSTM WND DMG     5 NNE DODSON            32.15N  92.63W
06/18/2016                   WINN               LA   LAW ENFORCEMENT

            TREES DOWN NNE OF DODSON ON ON 499

&&

EVENT NUMBER SHV1600592

25

Local storm report, Jun 18, 12:35 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1235 PM CDT SAT JUN 18 2016

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

1112 AM     TSTM WND DMG     3 E CALVIN              31.96N  92.73W
06/18/2016                   WINN               LA   LAW ENFORCEMENT

            TREES REPORTED DOWN EAST OF CALVIN ON 501

&&

EVENT NUMBER SHV1600593

25

Local storm report, Jun 18, 12:41 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1241 PM CDT SAT JUN 18 2016

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

1203 PM     TSTM WND DMG     6 WNW GIBSLAND          32.57N  93.15W
06/18/2016                   BIENVILLE          LA   LAW ENFORCEMENT

            TREES REPORTED DOWN ON I20 NORTH OF ADA AND TAYLOR...
            MILE MARKER 56

&&

EVENT NUMBER SHV1600594

25

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 9:25 AM CDT	Special Weather Statement	SHV	Caldwell	50 min
Jun 18, 10:46 AM CDT	Special Weather Statement	SHV	Winn	44 min
Jun 18, 11:12 AM CDT	Severe Thunderstorm Warning	SHV	Bienville, Jackson, Natchitoches, Winn	48 min
Jun 18, 11:41 AM CDT	Special Weather Statement	SHV	Bienville	49 min
Jun 18, 12:55 PM CDT	Severe Thunderstorm Warning	SHV	Natchitoches, Sabine	37 min
Jun 18, 1:42 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Caddo, De Soto	63 min
Jun 18, 2:34 PM CDT	Areal Flood Advisory	SHV	Bossier, Caddo	3 hr
Jun 18, 5:09 PM CDT	Special Weather Statement	SHV	Bossier	51 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 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.