Alert archive / Louisiana / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 212, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Oct 12, 2013, 3:19 PM CDT for Caldwell Parish, Jackson Parish, Ouachita Parish, Louisiana. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 12, 2013, 3:19 PM CDT (20:19 UTC)
- Expired
- Oct 12, 2013, 4:00 PM CDT
- In force
- 41 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
Counties Caldwell Parish, LA, Jackson Parish, LA, Ouachita Parish, LA
The radar
The Ft Polk radar (KPOE), 143 km from the middle of the area, began a volume at 20:19 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 nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 8.3 hours before the alert went out and 206 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
- 296 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 602 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Oct 12, 3:15 PM CDT, 4 minutes earlier.
Area forecast discussion, Oct 12, 3:15 PM CDT, 4 minutes before
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</html>Hazardous weather outlook, Oct 12, 11:23 AM CDT, 3 hours 56 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1123 AM CDT SAT OCT 12 2013 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-131200- 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- 1123 AM CDT SAT OCT 12 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL AND SOUTHWEST ARKANSAS...NORTH CENTRAL AND NORTHWEST LOUISIANA... SOUTHEAST OKLAHOMA...AND EAST AND NORTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE OVER THE AREA THIS AFTERNOON AND TONIGHT. THE CHANCE FOR ORGANIZED SEVERE THUNDERSTORMS WILL BE LOW...BUT STRONGER THUNDERSTORMS WILL BE CAPABLE OF PRODUCING STRONG AND GUSTY WINDS...LOCALLY HEAVY RAINFALL...HAIL...AND DEADLY LIGHTNING. RAINFALL AMOUNTS THROUGH TONIGHT FOR SOME LOCATIONS COULD NEAR ONE TO TWO INCHES WHERE THUNDERSTORMS OCCUR. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY... SHOWER AND THUNDERSTORM ACTIVITY WILL CONTINUE FOR THE REST OF THE WEEKEND AND THROUGH MUCH OF THE FIRST HALF OF THE NEXT WEEK DUE TO THE PASSAGE OF A COUPLE OF COLD FRONTS AND UPPER LEVEL DISTURBANCES SPREADING ACROSS THE AREA. WITH SUCH A RICH SUPPLY OF GULF AND PACIFIC MOISTURE...RAINFALL WILL BE LOCALLY HEAVY AT TIMES PROVIDING PONDING OF WATER IN STREETS...LOW LYING AND POOR DRAINAGE AREAS. URBAN AND SMALL STREAMS IN HEAVY DOWNPOURS MAY ALSO FILL TO MINOR OVERFLOW. ADDITIONAL RAINFALL AMOUNTS OF ONE TO THREE INCHES COULD OCCUR FOR SOME LOCATIONS. STRONGER THUNDERSTORMS WILL BE CAPABLE OF PRODUCING STRONG AND GUSTY WINDS...HAIL AND DEADLY LIGHTNING. ORGANIZED SEVERE THUNDERSTORMS WILL BE LOW. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL...AMATEUR RADIO OPERATORS...AND STORM SPOTTERS WILL NOT BE NEEDED THIS AFTERNOON OR TONIGHT. ELEVEN
In the hours before
Local storm report, Oct 12, 2:02 PM CDT, 1 hour 17 minutes before
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</html>Special weather statement, Oct 12, 2:11 PM CDT, 1 hour 8 minutes before
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</html>Local storm report, Oct 12, 2:39 PM CDT, 40 minutes before
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</html>Special weather statement, Oct 12, 2:44 PM CDT, 35 minutes before
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</html>Local storm report, Oct 12, 2:52 PM CDT, 27 minutes before
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</html>Special weather statement, Oct 12, 3:04 PM CDT, 15 minutes before
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</html>The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 12, 1:42 PM CDT | Severe Thunderstorm Warning | SHV | Smith, Upshur, Wood | 48 min |
| Oct 12, 2:29 PM CDT | Severe Thunderstorm Warning | SHV | Gregg, Harrison, Smith, Upshur | 46 min |
| Oct 12, 2:57 PM CDT | Severe Thunderstorm Warning | SHV | Angelina, Nacogdoches | 48 min |
| Oct 12, 3:14 PM CDT | Severe Thunderstorm Warning | SHV | Cass, Gregg, Harrison, Marion, Morris, Upshur | 61 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2013Every severe thunderstorm warning in 2013
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.