Alert archive / Louisiana / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 80, NWS Lake Charles, LA

July 4, 2015Beauregard Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jul 4, 2015, 3:08 PM CDT for Beauregard Parish, Louisiana. It was in force for 27 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: Jul 4, 2015, 3:08 PM CDT (20:08 UTC)
Expired: Jul 4, 2015, 3:35 PM CDT
In force: 27 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon

County Beauregard Parish, LA

The radar

The Lake Charles radar (KLCH), 59 km from the middle of the area, began a volume at 20:09 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.1 hours before the alert went out and 60 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: 2730 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 744 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 104 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 Jul 4, 6:53 AM CDT, 8 hours 15 minutes earlier.

Area forecast discussion, Jul 4, 6:53 AM CDT, 8 hours 15 minutes before

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Hazardous weather outlook, Jul 4, 5:30 AM CDT, 9 hours 38 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAKE CHARLES LA
530 AM CDT SAT JUL 4 2015

GMZ432-LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-
259>262-051030-
CALCASIEU LAKE-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-
530 AM CDT SAT JUL 4 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NORTHWEST
GULF OF MEXICO...CENTRAL LOUISIANA...SOUTH CENTRAL LOUISIANA...
SOUTHWEST LOUISIANA...WEST CENTRAL LOUISIANA...EAST CENTRAL TEXAS
AND SOUTHEAST TEXAS.

.DAY ONE...TODAY AND TONIGHT
SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO BEGIN
DEVELOPING THIS MORNING AS AN UPPER LEVEL DISTURBANCE APPROACHES
THE REGION. SHOWER AND THUNDERSTORM COVERAGE IS EXPECTED TO
INCREASE DURING THE AFTERNOON...ESPECIALLY FROM THE LAKES AREA OF
SOUTHEAST TEXAS INTO CENTRAL LOUISIANA. CONDITIONS APPEAR
FAVORABLE FOR SOME STORMS TO BECOME STRONG TO MARGINALLY SEVERE
FROM MID AFTERNOON THROUGH EARLY EVENING...WITH STRONG GUSTY
WINDS THE PRIMARY RISK. IN ADDITION...STORMS WILL BE CAPABLE OF
PRODUCING FREQUENT CLOUD TO GROUND LIGHTNING AND VERY HEAVY
RAINFALL.

SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DIMINISH DURING THE
EVENING.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
SHOWERS AND THUNDERSTORMS WILL DEVELOP AGAIN ON SUNDAY...WITH THE
BEST CHANCES EAST OF A LINE FROM TOLEDO BEND RESERVOIR TO
ABBEVILLE. SEVERE WEATHER IS NOT EXPECTED...BUT SOME STORMS WILL
BE CAPABLE OF GUSTY WINDS...FREQUENT CLOUD TO GROUND LIGHTNING AND
HEAVY RAINFALL.

AN UPPER LEVEL RIDGE IS EXPECTED TO STRENGTHEN OVER THE REGION
EARLY NEXT WEEK LIMITING ANY CONVECTION. CONDITIONS WILL BE HOT
AND MUGGY WITH DAILY AFTERNOON HEAT INDEX READINGS BETWEEN 100 AND
105 DEGREES.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

GMZ430-435-450-452-455-470-472-475-051030-
SABINE 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-
530 AM CDT SAT JUL 4 2015

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

.DAY ONE...TODAY AND TONIGHT
SCATTERED SHOWERS AND THUNDERSTORMS CAN BE EXPECTED. STORMS WILL
BE CAPABLE OF PRODUCING GUSTY WINDS AND LOCALLY HIGHER SEAS.
ALSO...FREQUENT CLOUD TO WATER LIGHTNING WILL BE POSSIBLE WITH THE
STORMS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED.

24

In the hours before

Special weather statement, Jul 4, 1:38 PM CDT, 1 hour 30 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
138 PM CDT SAT JUL 4 2015

LAZ032-033-042-043-041930-
ST. LANDRY LA-ACADIA LA-EVANGELINE LA-JEFFERSON DAVIS LA-
138 PM CDT SAT JUL 4 2015

...SPECIAL WEATHER STATEMENT...

AT 137 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR MAMOU TO NEAR PINE
ISLAND...AND MOVING EAST AT 15 MPH.

WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
OPELOUSAS...EUNICE...VILLE PLATTE...MAMOU...BASILE...IOTA...
CHATAIGNIER...REDDELL...SWORDS...SAVOY...PINE ISLAND...PRAIRIE
RONDE...RICHARD...GRAND PRAIRIE...MAXIE...LAWTELL...DURALDE...MOWATA
AND HATHAWAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3029 9236 3033 9285 3049 9268 3049 9262
      3052 9262 3054 9260 3057 9259 3068 9247
      3075 9198
TIME...MOT...LOC 1837Z 266DEG 14KT 3063 9245 3039 9271

Special weather statement, Jul 4, 2:07 PM CDT, 1 hour 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
207 PM CDT SAT JUL 4 2015

LAZ028-029-032-041945-
EVANGELINE LA-AVOYELLES LA-RAPIDES LA-
207 PM CDT SAT JUL 4 2015

...SPECIAL WEATHER STATEMENT...

AT 206 PM CDT...DOPPLER RADAR WAS TRACKING A CLUSTER OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR EFFIE TO GLENMORA...
AND MOVING EAST AT 20 MPH.

WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
MARKSVILLE...BUNKIE...GLENMORA...CHENEYVILLE...BORDELONVILLE...
EFFIE...MANSURA...LECOMPTE...HESSMER...RUBY...POLAND...ECHO...
BROUILLETTE...LAKE OPHELIA NATIONAL WILDLIFE REFUGE...CENTERPOINT...
WOODWORTH...FOREST HILL...MCNARY AND UNION HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3130 9201 3128 9202 3127 9199 3125 9199
      3124 9200 3122 9199 3125 9195 3122 9195
      3123 9192 3124 9194 3129 9194 3128 9187
      3126 9185 3127 9183 3123 9179 3120 9168
      3087 9234 3098 9281 3132 9219
TIME...MOT...LOC 1906Z 273DEG 16KT 3119 9212 3096 9258

Special weather statement, Jul 4, 2:30 PM CDT, 38 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
230 PM CDT SAT JUL 4 2015

LAZ033-043-044-042015-
LAFAYETTE LA-ST. LANDRY LA-ACADIA LA-
230 PM CDT SAT JUL 4 2015

...SPECIAL WEATHER STATEMENT...

AT 229 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
RIDGE...OR NEAR RAYNE...MOVING NORTHEAST AT 5 MPH.

WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
LAFAYETTE...CROWLEY...SCOTT...RAYNE...CHURCH POINT...DUSON...MIRE AND
RIDGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

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 3014 9220 3014 9230 3017 9235 3040 9223
      3025 9197 3011 9213
TIME...MOT...LOC 1929Z 214DEG 6KT 3018 9222

Special weather statement, Jul 4, 2:54 PM CDT, 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
254 PM CDT SAT JUL 4 2015

LAZ028-029-042045-
AVOYELLES LA-RAPIDES LA-
254 PM CDT SAT JUL 4 2015

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL RAPIDES AND
NORTHWESTERN AVOYELLES PARISHES UNTIL 345 PM CDT...

AT 253 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
CENTERPOINT...OR NEAR EFFIE...MOVING EAST AT 15 MPH.

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

LOCATIONS IMPACTED INCLUDE...
EFFIE...DEVILLE...BROUILLETTE...LAKE OPHELIA NATIONAL WILDLIFE
REFUGE...CENTERPOINT AND RUBY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

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 3136 9208 3132 9208 3134 9202 3132 9200
      3130 9200 3130 9202 3128 9202 3127 9199
      3126 9201 3122 9199 3125 9195 3122 9195
      3123 9192 3129 9194 3129 9189 3128 9186
      3118 9185 3119 9226 3137 9228 3140 9214
TIME...MOT...LOC 1953Z 264DEG 14KT 3129 9219

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 1:38 PM CDT	Special Weather Statement	LCH	Evangeline	52 min
Jul 4, 2:07 PM CDT	Special Weather Statement	LCH	Avoyelles	38 min
Jul 4, 2:30 PM CDT	Special Weather Statement	LCH	Lafayette	45 min
Jul 4, 2:54 PM CDT	Special Weather Statement	LCH	Avoyelles	51 min
Jul 4, 4:37 PM CDT	Special Weather Statement	LCH	Vernon	23 min
Jul 4, 3:13 PM CDT	Special Weather Statement	LCH	Tyler	47 min
Jul 4, 3:44 PM CDT	Special Weather Statement	LCH	Jasper, Newton	16 min
Jul 4, 3:55 PM CDT	Special Weather Statement	LCH	Jasper, Newton	35 min
Jul 4, 4:32 PM CDT	Special Weather Statement	LCH	Newton	43 min
Jul 4, 5:21 PM CDT	Severe Thunderstorm Warning	LCH	Jasper, Tyler	24 min
Jul 4, 5:40 PM CDT	Special Weather Statement	LCH	Tyler	50 min
Jul 4, 6:15 PM CDT	Special Weather Statement	LCH	Tyler	45 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2015 Every severe thunderstorm warning in 2015

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.