Alert archive / Louisiana / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 77, NWS Lake Charles, LA

June 18, 2005Cameron Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jun 18, 2005, 3:22 PM CDT for Cameron Parish, Louisiana. It was in force for 53 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 18, 2005, 3:22 PM CDT (20:22 UTC)
Expired: Jun 18, 2005, 4:15 PM CDT
In force: 53 min
Issued by: NWS Lake Charles, LA
Area: Counties, with a storm outline in the text

County Cameron Parish, LA

The radar

The Lake Charles radar (KLCH), 37 km from the middle of the area, began a volume at 20:25 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 was reported inside it

Time	Report	Where	Remark
Jun 18, 3:30 PM CDT	HAIL 0.25	Creole, LA	NUMEROUS REPORTS OF PEA SIZE HAIL IN CREOLE.
Jun 18, 3:52 PM CDT	TSTM WND GST 48	Cameron, LA	MEASURED BY K7R5 STATION AT CAMERON HELIPORT

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.4 hours before the alert went out and 36 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: 1548 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 924 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KLCH 182024
SVRLCH
LAC023-182115-
/O.NEW.KLCH.SV.W.0077.050618T2022Z-050618T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
322 PM CDT SAT JUN 18 2005

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CAMERON PARISH IN SOUTHWEST LOUISIANA

* UNTIL 415 PM CDT

* AT 315 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 15 MILES NORTHWEST OF CREOLE TO
  10 MILES SOUTH OF GRAND CHENIER.  THESE STORMS WERE MOVING WEST AT 
  10 MPH.

* SEVERE THUNDERSTORMS EXPECTED TO BE NEAR...CAMERON BY 340 PM.
   RUTHERFORD BEACH...CREOLE AND GRAND CHENIER BY 415 PM CDT. 
 

SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 60 MPH...DESTRUCTIVE
HAIL...DEADLY LIGHTNING AND TORRENTIAL RAIN.

CALL 337-477-5285 TO REPORT SEVERE WEATHER TO THE WEATHER SERVICE.

LAT...LON 2990 9344 2970 9316 2956 9278 2967 9275
      3005 9334

$$

JSW

1 follow-up statement

000 
WWUS54 KLCH 182103
SVSLCH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
400 PM CDT SAT JUN 18 2005

LAC023-182115-
/O.CON.KLCH.SV.W.0077.000000T0000Z-050618T2115Z/
CAMERON LA-
400 PM CDT SAT JUN 18 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 415 PM CDT FOR
CAMERON PARISH...

AT 352 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A CLUSTER OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING 
QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS 
STORM WAS LOCATED 24 MILES WEST OF CREOLE..MOVING WEST AT 25 MPH.
REPORTS OF PEA SIZED HAIL HAVE BEEN RECEIVED FOR AREAS NEAR THE COAST
INLAND FROM CAMERON TO CREOLE. 

THE SEVERE THUNDERSTORM WILL BE NEAR HOLLY BEACH...JOHNSONS BAYOU
AT 410 PM CDT

LAT...LON 2979 9364 2980 9328 2976 9307 2991 9307
      3001 9327 2992 9357

$$

JS

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 Jun 18, 1:08 PM CDT, 2 hours 14 minutes earlier.

Area forecast discussion, Jun 18, 1:08 PM CDT, 2 hours 14 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
108 PM CDT SAT JUN 18 2005

.DISCUSSION...
RIDGE ACROSS THE CENTRAL AND SW CONUS CONTINUES TO HOLD
WITH TROUGHS ANCHORED OVER THE ERN US AND W COAST. SHORTWAVE
TRAVELING ALONG THE ERN EDGE OF THIS RIDGE HELPING TO PRODUCE
SHOWERS AND THUNDERSTORMS OVER THE COASTAL WATERS FROM
S CENTRAL LOUISIANA EASTWARD. THIS ACTIVITY RUNS ALONG A WEAK
FRONTAL BOUNDARY THAT EXTENDS FROM THE NE GULF/FLORIDA PANHANDLE
WESTWARD ACROSS SRN LA INTO E TX.

A FEW SHOWERS HAVE DEVELOPED ALONG THE WEAK CONVERGENCE LINE
ACROSS SW LA EARLY THIS AFTERNOON...MOVING SOUTH. EXPECT THESE
SHOWERS TO CONTINUE OVER SW LA AND EXTREME SE TX THROUGH EARLY
EVENING. WATER VAPOR IMAGERY SHOWS DRIER AIR MOVING INTO THE SRN
PLAINS ALONG THE BACKSIDE OF THE ERN US TROUGH.

MODELS IN GOOD AGREEMENT WITH RIDGE BUILDING OVER THE AREA THE
NEXT FEW DAYS. THE COMBINATION OF DRIER AIR AND SUBSIDENCE WILL
LEAD TO HOT AND DRY WEATHER THROUGH AT LEAST WEDNESDAY. GFS
CURRENTLY INDICATING A RATHER STRONG LOW PRESSURE SYSTEM
DEVELOPING OVER THE SRN GULF OF MEXICO AROUND MID-WEEK
MOVING NORTHWEST TOWARD THE TX COAST. ITS A BIT EARLY TO KNOW HOW
THIS WILL DEVELOP. HOWEVER...IF IT DOES...WILL SEE INCREASING
CHANCES OF SHOWERS AND THUNDERSTORMS OVER THE LATTER PART OF
THE WEEK. FOR NOW...WILL GO WITH CHANCE POPS FROM THURSDAY THROUGH
THE WEEKEND.

&&

.AVIATION...
MAY SEE VISIBILITIES REDUCED TO 4 TO 6 MILES AROUND SUNRISE AS PATCHY FOG
DEVELOPS...OTHERWISE VFR CONDITIONS EXPECTED THROUGH THE NEXT 24 HOURS.

&&

.MARINE...
SCATTERED SHOWERS AND THUNDERSTORMS CAN BE EXPECTED MAINLY EAST
OF CAMERON THROUGH THE EVENING HOURS AS A WEAK FRONTAL BOUNDARY
SAGS SLOWLY SOUTHWARD. HIGH PRESSURE WILL BUILD OVER THE COASTAL
WATERS TONIGHT...ALLOWING FOR LIGHT NORTHEAST TO EAST WINDS AND
SEAS AROUND 2 FEET OR LESS. EASTERLY WINDS AND SEAS ARE EXPECTED
TO INCREASE WEDNESDAY IN RESPONSE TO A DEVELOPING LOW PRESSURE
AREA OVER THE SOUTHERN GULF OF MEXICO.

&&

.PRELIMINARY POINT TEMPS/POPS...
KLCH  73  95  71  95 /   0  0  0  0
KBPT  73  95  71  97 /   0  0  0  0
KAEX  66  93  67  95 /   0  0  0  0
KLFT  72  94  72  94 /   0  0  0  0

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...NONE.
TX...NONE.

&&

Hazardous weather outlook, Jun 18, 6:00 AM CDT, 9 hours 22 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAKE CHARLES LA
600 AM CDT SAT JUN 18 2005

GMZ450-455-470-475-LAZ027>033-041>045-051>055-TXZ180>182-201-215-216-
191100-
ACADIA-ALLEN-AVOYELLES-BEAUREGARD-CALCASIEU-CAMERON-EVANGELINE-
HARDIN-IBERIA-JASPER-JEFFERSON-JEFFERSON DAVIS-LAFAYETTE-
LOWER ST. MARTIN-NEWTON-ORANGE-RAPIDES-ST. LANDRY-ST. MARY-TYLER-
UPPER ST. MARTIN-VERMILION-VERNON-
INCLUDING THE CITIES OF...WOODVILLE...PORT ARTHUR...ORANGE...
NEWTON...KOUNTZE...JASPER...BEAUMONT...OBERLIN...ABBEVILLE...
VILLE PLATTE...OPELOUSAS...NEW IBERIA...MORGAN CITY...MARKSVILLE...
LEESVILLE...LAKE CHARLES...LAFAYETTE...JENNINGS...DERIDDER...
CROWLEY...CAMERON AND ALEXANDRIA

.DAY ONE...TODAY AND TONIGHT
WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE TODAY AS A
WEAK FRONT PUSHES SOUTH ACROSS THE REGION AND INTERACTS WITH A MOIST
UNSTABLE AIRMASS. NO SEVERE WEATHER IS EXPECTED.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
HIGH PRESSURE WILL BUILD OVER THE REGION...SHUTTING OFF SHOWERS AND
THUNDERSTORMS THROUGH AT LEAST MID-WEEK. RAIN CHANCES RETURN LATE IN
THE WEEK AS MOISTURE RETURNS TO THE REGION. SEVERE WEATHER IS NOT
EXPECTED.

.SPOTTER INFORMATION STATEMENT...
THE ACTIVATION OF STORM SPOTTERS, HAM RADIO OPERATORS, AND EMERGENCY
MANAGEMENT PERSONNEL...IN SUPPORT OF SEVERE WEATHER OPERATIONS...
WILL NOT BE REQUIRED TODAY.

LGE

In the hours before

Local storm report, Jun 18, 11:07 AM CDT, 4 hours 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1107 AM CDT SAT JUN 18 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1058 AM     MARINE TSTM WIND 22 S BURNS POINT        29.25N 91.53W
06/18/2005  40 MPH           GMZ455             LA   PUBLIC

            REPORTED BY PLATFORM IN EUGENE ISLAND BLOCK 42.

&&

MOGGED

Local storm report, Jun 18, 11:38 AM CDT, 3 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1138 AM CDT SAT JUN 18 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1130 AM     MARINE TSTM WIND 38 SW BURNS POINT       29.18N 91.97W
06/18/2005  43 MPH           GMZ455             LA   PUBLIC

            REPORTED BY PLATFORM IN SOUTH MARSH ISLAND BLOCK 268.

&&

MOGGED

Local storm report, Jun 18, 11:52 AM CDT, 3 hours 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1152 AM CDT SAT JUN 18 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1148 AM     MARINE TSTM WIND 38 S BURNS POINT        29.02N 91.53W
06/18/2005  45 MPH           GMZ475             LA   PUBLIC

            REPORTED BY PLATFORM IN EUGENE ISLAND BLOCK 107.

&&

MOGGED

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 7:30 PM CDT	Severe Thunderstorm Warning	LCH	Rapides	60 min
Jun 17, 8:21 PM CDT	Severe Thunderstorm Warning	LCH	Rapides, Vernon	54 min
Jun 17, 9:11 PM CDT	Severe Thunderstorm Warning	LCH	Rapides, Vernon	64 min
Jun 17, 9:32 PM CDT	Severe Thunderstorm Warning	LCH	Allen	39 min
Jun 17, 9:41 PM CDT	Severe Thunderstorm Warning	LCH	Vernon	64 min
Jun 18, 10:17 AM CDT	Special Marine Warning	LCH		58 min
Jun 18, 11:21 AM CDT	Special Marine Warning	LCH		54 min
Jun 18, 2:06 PM CDT	Special Marine Warning	LCH		54 min
Jun 18, 4:13 PM CDT	Special Marine Warning	LCH		62 min
Jun 18, 4:36 PM CDT	Special Marine Warning	LCH		54 min
Jun 18, 5:17 PM CDT	Special Marine Warning	LCH		58 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2005 Every severe thunderstorm warning in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.