Alert archive / Louisiana / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 17, NWS Lake Charles, LA

February 24, 2013Avoyelles Parish, Evangeline Parish, Saint Landry Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Feb 24, 2013, 9:10 PM CST for Avoyelles Parish, Evangeline Parish, Saint Landry Parish, Louisiana. It was in force for 65 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
Feb 24, 2013, 9:10 PM CST (03:10 UTC)
Expired
Feb 24, 2013, 10:15 PM CST
In force
65 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon

Counties Avoyelles Parish, LA, Evangeline Parish, LA, Saint Landry Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 3.2 hours before the alert went out and 127 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, Lake Charles Mun, LA at 00:00Z on 2013-02-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 00:00Z on 2013-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 124 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1037 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

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 Lake Charles, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 24, 8:43 PM CST, 27 minutes earlier.

Area forecast discussion, Feb 24, 8:43 PM CST, 27 minutes before
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Hazardous weather outlook, Feb 24, 6:24 AM CST, 14 hours 46 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAKE CHARLES LA
624 AM CST SUN FEB 24 2013

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-
251230-
VERNON-RAPIDES-AVOYELLES-BEAUREGARD-ALLEN-EVANGELINE-ST. LANDRY-
CALCASIEU-JEFFERSON DAVIS-ACADIA-LAFAYETTE-UPPER ST. MARTIN-
VERMILION-IBERIA-ST. MARY-LOWER ST. MARTIN-WEST CAMERON-
EAST CAMERON-TYLER-HARDIN-JEFFERSON-ORANGE-NORTHERN JASPER-
NORTHERN NEWTON-SOUTHERN JASPER-SOUTHERN NEWTON-
624 AM CST SUN FEB 24 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
LOUISIANA...SOUTH CENTRAL LOUISIANA...SOUTHWEST LOUISIANA...WEST
CENTRAL LOUISIANA AND SOUTHEAST TEXAS.

.DAY ONE...TODAY AND TONIGHT

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TO
DEVELOP OVER THE COASTAL WATERS THIS AFTERNOON...SPREADING INLAND
THROUGH THE EVENING AND OVERNIGHT HOURS. THIS ACTIVITY WILL
INITIALLY BE ELEVATED...OCCURRING NORTH OF A WARM FRONT. ANY
SEVERE THUNDERSTORMS WILL BE CAPABLE OF LARGE HAIL. AS THE FRONT
NEARS THE COAST AND MOVES INLAND TOWARD MONDAY MORNING...THE RISK
OF SURFACE BASED OR NEAR SURFACE BASED THUNDERSTORMS WILL
INCREASE...WITH ATMOSPHERIC WIND PROFILES FORECAST TO BE
SUPPORTIVE OF A RISK FOR DAMAGING WINDS AND TORNADOES. THE OVERALL
RISK OF SEVERE WEATHER IS VERY LOW AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A LULL IN ACTIVITY IS POSSIBLE AFTER THIS INITIAL ROUND OF
SHOWERS AND THUNDERSTORMS...BUT ADDITIONAL DEVELOPMENT IS EXPECTED
ALONG AND AHEAD OF A COLD FRONT FORECAST TO SWEEP THROUGH THE
REGION FROM WEST TO EAST DURING THE DAY MONDAY. THESE THUNDERSTORMS
WILL ALSO POSE A SEVERE WEATHER RISK...AND THE STORM PREDICTION
CENTER HAS OUTLINED THE ENTIRE AREA IN A SLIGHT RISK FOR SEVERE
THUNDERSTORMS. IN ADDITION...STRONG AND GUSTY WEST WINDS ARE
EXPECTED IN THE WAKE OF THE FRONT...AND A WIND ADVISORY MAY BE
REQUIRED.

DRY AND COOL WEATHER IS EXPECTED TO PREVAIL THE REST OF THE WEEK.

.SPOTTER INFORMATION STATEMENT...
STORM SPOTTER ACTIVATION MAY BE REQUIRED TONIGHT AND MONDAY.

GMZ430-432-435-450-452-455-470-472-475-251230-
SABINE LAKE-CALCASIEU LAKE-VERMILION BAY-
COASTAL WATERS FROM CAMERON LA TO HIGH ISLAND TX OUT 20 NM-
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON LA OUT 20 NM-
COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY
LA OUT 20 NM-
WATERS FROM CAMERON LA TO HIGH ISLAND TX FROM 20 TO 60 NM-
WATERS FROM  INTRACOASTAL CITY TO CAMERON LA FROM 20 TO 60 NM-
WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY LA FROM
20 TO 60 NM-
624 AM CST SUN FEB 24 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NORTHWEST
GULF OF MEXICO.

.DAY ONE...TODAY AND TONIGHT

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TO
DEVELOP OVER THE COASTAL WATERS THIS AFTERNOON. THIS ACTIVITY
WILL INITIALLY BE ELEVATED...OCCURRING NORTH OF A WARM FRONT. ANY
SEVERE THUNDERSTORMS WILL BE CAPABLE OF LARGE HAIL. AS THE FRONT
MOVES NORTH THROUGH THE COASTAL WATERS DURING THE OVERNIGHT
HOURS...THE RISK OF SURFACE BASED OR NEAR SURFACE BASED
THUNDERSTORMS WILL INCREASE...WITH ATMOSPHERIC WIND PROFILES
FORECAST TO BE SUPPORTIVE OF A RISK FOR DAMAGING WINDS AND
WATERSPOUTS. THE OVERALL RISK OF SEVERE WEATHER IS VERY LOW AT THIS
TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A LULL IN ACTIVITY IS POSSIBLE EARLY MONDAY AFTER THIS INITIAL
ROUND OF SHOWERS AND THUNDERSTORMS...BUT ADDITIONAL DEVELOPMENT IS
EXPECTED ALONG AND AHEAD OF A COLD FRONT FORECAST TO SWEEP THROUGH
THE REGION FROM WEST TO EAST DURING THE DAY MONDAY. THESE
THUNDERSTORMS WILL ALSO POSE A SEVERE WEATHER RISK. INCREASING
SOUTH WINDS AHEAD OF THE FRONT...AND STRONG WEST WINDS BEHIND THE
FRONT...HAVE PROMPTED A SMALL CRAFT ADVISORY TO BE ISSUED FOR
MONDAY AFTERNOON. THESE WEST WINDS ARE EXPECTED TO STRENGTHEN
FURTHER MONDAY NIGHT...WITH FREQUENT GUSTS TO GALE FORCE. A GALE
WATCH IS IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY MORNING.
THE STRONG OFFSHORE FLOW MAY ALSO RESULT IN LOW WATER CONDITIONS
TUESDAY MORNING AT THE TIME OF PREDICTED LOW TIDE...AND A LOW
WATER ADVISORY MAY BE REQUIRED.

WINDS AND SEAS WILL SUBSIDE ON TUESDAY...WITH ANOTHER FRONT
EXPECTED TO PUSH THROUGH THE COASTAL WATERS LATE WEDNESDAY. THIS
FRONT IS EXPECTED TO PASS THROUGH WITHOUT RAINFALL...BUT WILL
RESULT IN MODERATE TO STRONG NORTHWEST WINDS INTO THURSDAY. MODEST
OFFSHORE FLOW IS EXPECTED TO PREVAIL INTO THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...
MARINE INTERESTS ARE ENCOURAGED TO BE ALERT FOR THE POSSIBILITY OF
SEVERE THUNDERSTORMS THIS AFTERNOON THROUGH MONDAY....AND BE
PREPARED FOR GALE FORCE WIND GUSTS MONDAY NIGHT INTO TUESDAY.

13

In the hours before

Special weather statement, Feb 24, 6:14 PM CST, 2 hours 56 minutes before
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Special weather statement, Feb 24, 7:39 PM CST, 1 hour 31 minutes before
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Special weather statement, Feb 24, 8:54 PM CST, 16 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Feb 24, 6:02 PM CSTSpecial Marine WarningLCH43 min
Feb 24, 6:14 PM CSTSpecial Weather StatementLCHSaint Martin61 min
Feb 24, 7:39 PM CSTSpecial Weather StatementLCHVermilion66 min
Feb 24, 8:54 PM CSTSpecial Weather StatementLCHSaint Landry66 min
Feb 25, 4:08 AM CSTGale WarningLCH29 hr
Feb 25, 5:07 AM CSTWind AdvisoryLCHCameron, Lafayette, Saint Landry, Saint Martin10 hr
Feb 25, 6:01 AM CSTMarine Dense Fog AdvisoryLCH6 hr
Feb 25, 12:04 PM CSTSpecial Weather StatementLCHVermilion41 min
Feb 25, 12:07 PM CSTSpecial Weather StatementLCHEvangeline38 min
Feb 25, 12:13 PM CSTSpecial Weather StatementLCHCalcasieu47 min
Feb 25, 12:22 PM CSTSevere Thunderstorm WarningLCHBeauregard, Calcasieu38 min
Feb 25, 12:36 PM CSTSevere Thunderstorm WarningLCHBeauregard39 min
Feb 25, 12:59 PM CSTSevere Thunderstorm WarningLCHAcadia, Lafayette, Saint Landry, Saint Martin, Vermilion46 min
Feb 25, 1:12 PM CSTSpecial Weather StatementLCHAllen63 min
Feb 25, 1:16 PM CSTTornado WarningLCHBeauregard29 min
Feb 25, 1:20 PM CSTSevere Thunderstorm WarningLCHAllen, Beauregard, Rapides, Vernon55 min
Feb 25, 1:28 PM CSTSpecial Weather StatementLCHAvoyelles62 min
Feb 25, 1:40 PM CSTSevere Thunderstorm WarningLCHAvoyelles, Rapides65 min
Feb 25, 1:44 PM CSTTornado WarningLCHAllen, Beauregard, Vernon31 min
Feb 25, 2:35 PM CSTRiver Flood WarningLCHLafayette, Vermilion12 hr
Feb 25, 2:40 PM CSTLow Water AdvisoryLCH24 hr
Feb 25, 2:40 PM CSTSmall Craft AdvisoryLCH30 hr
Feb 25, 2:48 PM CSTSpecial Weather StatementLCHAcadia42 min
Feb 25, 2:49 PM CSTWind AdvisoryLCHCameron, Lafayette, Saint Landry, Saint Martin24 hr
Feb 25, 3:05 PM CSTSpecial Marine WarningLCH55 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.