Alert archive / Louisiana / Tornado Watches in 2014
Tornado Watch 536
The Storm Prediction Center issued this tornado watch at Oct 13, 2014, 11:10 AM CDT for 16 parishes in Louisiana; 8 counties in Texas. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 13, 2014, 11:10 AM CDT (16:10 UTC)
- Expired
- Oct 13, 2014, 6:46 PM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 24 counties
Acadia Parish, LA, Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA, Cameron Parish, LA, Evangeline Parish, LA, Iberia Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Rapides Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Vermilion Parish, LA, Vernon Parish, LA, Chambers County, TX, Hardin County, TX, Jasper County, TX, Jefferson County, TX, Liberty County, TX, Newton County, TX, Orange County, TX, Tyler County, TX
The radar
The Lake Charles radar (KLCH), 58 km from the middle of the area, began a volume at 16:10 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 13, 11:38 AM CDT | Severe Thunderstorm Warning | LCH | Rapides, Vernon | 52 min |
| Oct 13, 11:50 AM CDT | Severe Thunderstorm Warning | LCH | Jasper, Newton, Tyler | 55 min |
| Oct 13, 12:28 PM CDT | Severe Thunderstorm Warning | LCH | Allen, Beauregard, Calcasieu, Vernon | 62 min |
| Oct 13, 12:46 PM CDT | Severe Thunderstorm Warning | LCH | Rapides, Vernon | 59 min |
| Oct 13, 1:18 PM CDT | Severe Thunderstorm Warning | LCH | Allen, Evangeline | 57 min |
| Oct 13, 1:27 PM CDT | Severe Thunderstorm Warning | LCH | Calcasieu, Jefferson Davis | 63 min |
| Oct 13, 1:37 PM CDT | Severe Thunderstorm Warning | LCH | Avoyelles, Rapides | 53 min |
| Oct 13, 2:06 PM CDT | Severe Thunderstorm Warning | LCH | Saint Landry, Saint Martin | 54 min |
| Oct 13, 3:06 PM CDT | Severe Thunderstorm Warning | LCH | Iberia, Lafayette, Saint Landry, Saint Martin, Vermilion | 54 min |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 4.2 hours before the alert went out and 59 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.
- Mixed-layer CAPE
- 2118 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 741 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 147 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 7.9
The text
As transmitted, in the capitals the NWS used until 2016.
939 WWUS20 KWNS 131619 SEL6 SPC WW 131619 LAZ000-TXZ000-CWZ000-140000- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 536 NWS STORM PREDICTION CENTER NORMAN OK 1110 AM CDT MON OCT 13 2014 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF SOUTHWEST AND SOUTH CENTRAL LOUISIANA SOUTHEAST TEXAS COASTAL WATERS * EFFECTIVE THIS MONDAY MORNING AND EVENING FROM 1110 AM UNTIL 700 PM CDT. * PRIMARY THREATS INCLUDE... A COUPLE TORNADOES POSSIBLE SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES NORTHEAST OF FORT POLK LOUISIANA TO 40 MILES SOUTHEAST OF PORT ARTHUR TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. && OTHER WATCH INFORMATION...CONTINUE...WW 534...WW 535... DISCUSSION...TSTMS EXPECTED TO INCREASE OVER WW REGION THROUGH LATE AFTN IN RESPONSE TO MODERATE SFC HEATING AND ASCENT ON SRN FRINGE OF SLOWLY PROGRESSIVE OK SHORTWAVE TROUGH. AMPLE /40 + KT/ DEEP SHEAR ALREADY IN PLACE FOR SUPERCELLS SHOULD SLIGHTLY STRENGTHEN AS TROUGH CONTINUES EWD...WHILE RICH LOW-LVL MOISTURE INFLOW CONTINUES AHEAD OF SE TX SQLN. THE STORMS WILL THEREFORE POSE A RISK FOR DMGG WIND...TORNADOES...AND POSSIBLY MARGINALLY SVR HAIL. WHILE THE STRONGEST UPDRAFTS SHOULD REMAIN WITHIN THE LINE...PERSISTENT LOW-LVL CONFLUENCE AND CONSIDERABLE UPR-LVL DIFLUENCE IN WEAKLY-CAPPED ENVIRONMENT AHEAD OF IT SUGGEST GOOD LIKELIHOOD FOR DEVELOPMENT OF STORMS E/SE OF THE LINE. THESE...TOO...MAY POSE A RISK FOR DMGG WIND AND TORNADOES...AND COULD REQUIRE AN ADDITIONAL WATCH FARTHER E LATER TODAY. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 24035. ...CORFIDI
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 12, 8:04 PM CDT | Mesoscale Discussion | SPC | East Carroll, Morehouse, West Carroll | 86 min |
| Oct 13, 2:43 AM CDT | Mesoscale Discussion | SPC | Bossier, Caddo, De Soto, Webster | 92 min |
| Oct 13, 3:22 AM CDT | Tornado Watch | SPC | Bossier, Caddo, De Soto, Webster | 8 hr |
| Oct 13, 6:34 AM CDT | Mesoscale Discussion | SPC | Bienville, Bossier, Caddo, Caldwell, Catahoula, Claiborne and 21 more | 86 min |
| Oct 13, 7:08 AM CDT | Tornado Watch | SPC | Bienville, Caldwell, Catahoula, Claiborne, Concordia, East Carroll and 16 more | 7 hr |
| Oct 13, 10:20 AM CDT | Mesoscale Discussion | SPC | Bienville, Caldwell, Catahoula, Concordia, East Carroll, Franklin and 14 more | 115 min |
| Oct 13, 11:52 AM CDT | Mesoscale Discussion | SPC | East Carroll, Franklin, Madison, Richland, Tensas, West Carroll | 113 min |
| Oct 13, 12:57 PM CDT | Tornado Watch | SPC | Catahoula, Concordia, East Carroll, Franklin, Madison, Tensas | 7 hr |
| Oct 13, 1:39 PM CDT | Tornado Watch | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 16 more | 8 hr |
| Oct 13, 5:45 PM CDT | Mesoscale Discussion | SPC | Jefferson, Lafourche, Orleans, Saint Charles, Saint James, Saint John the Baptist and 4 more | 90 min |
| Oct 12, 7:45 PM CDT | Severe Thunderstorm Watch | SPC | Archer, Baylor, Borden, Brown, Callahan, Clay and 31 more | 7 hr |
| Oct 12, 9:47 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Fisher, Foard, Haskell and 10 more | 58 min |
| Oct 12, 10:17 PM CDT | Mesoscale Discussion | SPC | Collin, Cooke, Dallas, Delta, Denton, Ellis and 20 more | 58 min |
| Oct 12, 11:08 PM CDT | Tornado Watch | SPC | Bosque, Collin, Comanche, Cooke, Coryell, Dallas and 29 more | 7 hr |
| Oct 13, 1:59 AM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coke, Coleman, Comanche, Concho and 17 more | 91 min |
Nearby
Tornado Watches in Louisiana, 2014Tornado Watches in Texas, 2014Every tornado watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.