Alert archive / Louisiana / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 21, NWS Shreveport, LA

March 8, 2016Caldwell Parish, Ouachita Parish, Union Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Mar 8, 2016, 5:13 PM CST for Caldwell Parish, Ouachita Parish, Union Parish, Louisiana. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 8, 2016, 5:13 PM CST (23:13 UTC)
Expired
Mar 8, 2016, 5:48 PM CST
In force
35 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Hail
0.88 in
Wind
70.0 mph

Counties Caldwell Parish, LA, Ouachita Parish, LA, Union Parish, LA

The radar

The Shreveport radar (KSHV), 171 km from the middle of the area, began a volume at 23:14 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 watch it was issued in

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

IssuedProductOfficeLasted
Mar 8, 12:41 PM CSTTornado WatchSPC5 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 12:00Z, 11.2 hours before the alert went out and 162 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-pSkew-T log-p diagram, Shreveport, LA at 12:00Z on 2016-03-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 12:00Z on 2016-03-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 280 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
7 J/kg
Mixed-layer CIN
-109 J/kg
Mixed-layer LCL
710 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
280 m²/s²
0-3 km storm-relative helicity
415 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

094 
WUUS54 KSHV 082313
SVRSHV
LAC021-073-111-090000-
/O.NEW.KSHV.SV.W.0021.160308T2313Z-160309T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
513 PM CST TUE MAR 8 2016

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL CALDWELL PARISH IN NORTH CENTRAL LOUISIANA...
  SOUTHEASTERN UNION PARISH IN NORTH CENTRAL LOUISIANA...
  OUACHITA PARISH IN NORTH CENTRAL LOUISIANA...

* UNTIL 600 PM CST

* AT 512 PM CST...A SEVERE THUNDERSTORM WAS LOCATED OVER
  BROWNSVILLE-BAWCOM...OR OVER BROWNSVILLE-BAWCOMVILLE...MOVING
  NORTHEAST AT 40 MPH.

  HAZARD...70 MPH WIND GUSTS AND NICKEL SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO 
           MOBILE HOMES...ROOFS...AND OUTBUILDINGS. 

* LOCATIONS IMPACTED INCLUDE...
  MONROE...CLAIBORNE...WEST MONROE...BROWNSVILLE-BAWCOM...
  BROWNSVILLE-BAWCOMVILLE...SWARTZ...RICHWOOD...STERLINGTON...LOCH LOMON...
  PINE GROVE...GUTHRIE...FONDALE...BOSCO...DESHARD...DREW...FAIRBANKS...
  MILLHAVEN...PERRYVILLE AND LAPINE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH A TORNADO IS NOT
IMMEDIATELY LIKELY...IF ONE IS SPOTTED...ACT QUICKLY AND MOVE TO A
PLACE OF SAFETY INSIDE A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

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

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST FOR NORTH CENTRAL
LOUISIANA.

LAT...LON 3249 9194 3237 9201 3228 9203 3227 9199
      3221 9213 3245 9231 3282 9207 3280 9205
      3276 9206 3274 9205 3273 9207 3269 9205
      3270 9204 3270 9203 3271 9204 3271 9197
      3266 9194 3266 9191 3260 9193 3251 9190
TIME...MOT...LOC 2312Z 221DEG 35KT 3245 9217 

HAIL...0.88IN
WIND...70MPH
 
$$

09
2 follow-up statements
090 
WWUS54 KSHV 082331
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
531 PM CST TUE MAR 8 2016

LAC021-111-082340-
/O.CAN.KSHV.SV.W.0021.000000T0000Z-160309T0000Z/
CALDWELL LA-UNION LA-
531 PM CST TUE MAR 8 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CALDWELL AND
SOUTHEASTERN UNION PARISHES IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
CALDWELL AND UNION PARISHES. THEREFORE THE WARNING FOR CALDWELL
AND UNION PARISHES HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST FOR NORTH CENTRAL
LOUISIANA.

LAT...LON 3249 9194 3237 9201 3228 9203 3228 9210
      3251 9226 3271 9201 3271 9197 3268 9197
      3266 9194 3266 9191 3264 9193 3262 9192
      3260 9193 3254 9192 3254 9191 3251 9190
TIME...MOT...LOC 2330Z 237DEG 29KT 3248 9199 

$$

LAC073-090000-
/O.CON.KSHV.SV.W.0021.000000T0000Z-160309T0000Z/
OUACHITA LA-
531 PM CST TUE MAR 8 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CST
FOR EASTERN OUACHITA PARISH...

AT 530 PM CST...A SEVERE THUNDERSTORM WAS LOCATED NEAR RICHWOOD...OR
NEAR MONROE...MOVING NORTHEAST AT 35 MPH.

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

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
MONROE...CLAIBORNE...WEST MONROE...BROWNSVILLE-BAWCOM...
BROWNSVILLE-BAWCOMVILLE...SWARTZ...RICHWOOD...PINE GROVE...GUTHRIE...
FONDALE...BOSCO...FAIRBANKS...MILLHAVEN AND PERRYVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH A TORNADO IS NOT
IMMEDIATELY LIKELY...IF ONE IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE
OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

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

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST FOR NORTH CENTRAL
LOUISIANA.

LAT...LON 3249 9194 3237 9201 3228 9203 3228 9210
      3251 9226 3271 9201 3271 9197 3268 9197
      3266 9194 3266 9191 3264 9193 3262 9192
      3260 9193 3254 9192 3254 9191 3251 9190
TIME...MOT...LOC 2330Z 237DEG 29KT 3248 9199 

HAIL...0.88IN
WIND...60MPH
 
$$

09
551 
WWUS54 KSHV 082348
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
548 PM CST TUE MAR 8 2016

LAC073-082356-
/O.CAN.KSHV.SV.W.0021.000000T0000Z-160309T0000Z/
OUACHITA LA-
548 PM CST TUE MAR 8 2016

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN OUACHITA PARISH IS
CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF OUACHITA
PARISH. THEREFORE THE SEVERE THUNDERSTORM WARNING FOR OUACHITA
PARISH HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST FOR NORTH CENTRAL
LOUISIANA.

LAT...LON 3249 9194 3237 9201 3228 9203 3228 9210
      3251 9226 3271 9201 3271 9197 3268 9197
      3266 9194 3266 9191 3264 9193 3262 9192
      3260 9193 3254 9192 3254 9191 3251 9190
TIME...MOT...LOC 2345Z 221DEG 35KT 3260 9186 

$$

09

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 8, 2:41 PM CSTSevere Thunderstorm WarningSHVGrant, Natchitoches, Winn64 min
Mar 8, 2:52 PM CSTSevere Thunderstorm WarningSHVDe Soto, Sabine38 min
Mar 8, 3:31 PM CSTSevere Thunderstorm WarningSHVBossier, Caddo, De Soto, Red River, Webster21 min
Mar 8, 3:40 PM CSTSevere Thunderstorm WarningSHVCaldwell, Grant, Jackson, LaSalle, Natchitoches, Winn50 min
Mar 8, 4:02 PM CSTAreal Flood AdvisorySHVBossier, Caddo, De Soto, Red River, Webster3 hr
Mar 8, 4:26 PM CSTSevere Thunderstorm WarningSHVCaldwell, Jackson, Ouachita, Union, Winn49 min
Mar 8, 4:51 PM CSTSpecial Weather StatementSHVBossier, Caddo39 min
Mar 8, 4:55 PM CSTFlash Flood WarningSHVBienville, Bossier, Caddo, Claiborne, De Soto, Red River and 1 more15 hr

Nearby

Severe Thunderstorm Warnings in Louisiana, 2016Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.