Alert archive / Louisiana / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 141, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Jul 18, 2009, 2:55 PM CDT for Beauregard Parish, Calcasieu Parish, Louisiana; Jasper County, Texas. It was in force for 48 hr. 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 18, 2009, 2:55 PM CDT (19:55 UTC)
- Expired
- Jul 20, 2009, 3:13 PM CDT
- In force
- 48 hr
- Issued by
- NWS Lake Charles, LA
- Area
- Storm-based polygon
Counties Beauregard Parish, LA, Calcasieu Parish, LA, Jasper County, TX
The radar
The Lake Charles radar (KLCH), 58 km from the middle of the area, began a volume at 19:55 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, 7.9 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
- 2431 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 672 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- -54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 18, 12:50 PM CDT, 2 hours 5 minutes earlier.
Area forecast discussion, Jul 18, 12:50 PM CDT, 2 hours 5 minutes before
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</html>Hazardous weather outlook, Jul 18, 4:48 AM CDT, 10 hours 7 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LAKE CHARLES LA 448 AM CDT SAT JUL 18 2009 GMZ430-432-435-450-452-455-470-472-475-LAZ027>033-041>045-051>055- TXZ180>182-201-215-216-191000- 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 EXTENDING FROM 20 NM TO 60 NM- WATERS FROM INTRACOASTAL CITY, LA TO CAMERON, LA EXTENDING FROM 20 NM TO 60 NM- WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY, LA EXTENDING FROM 20 NM TO 60 NM-VERNON-RAPIDES-AVOYELLES-BEAUREGARD- ALLEN-EVANGELINE-ST. LANDRY-CALCASIEU-JEFFERSON DAVIS-ACADIA- LAFAYETTE-UPPER ST. MARTIN-CAMERON-VERMILION-IBERIA-ST. MARY- LOWER ST. MARTIN-TYLER-JASPER-NEWTON-HARDIN-JEFFERSON-ORANGE- 448 AM CDT SAT JUL 18 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NORTHWEST GULF OF MEXICO...CENTRAL LOUISIANA...SOUTH CENTRAL LOUISIANA... SOUTHWEST LOUISIANA...WEST CENTRAL LOUISIANA AND SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY...ESPECIALLY ACROSS SOUTHERN PORTIONS OF THE AREA. WIDESPREAD SEVERE WEATHER IS NOT EXPECTED...BUT A FEW STORMS COULD BECOME STRONG. THE PRIMARY THREATS ASSOCIATED WITH THESE STORMS WILL BE FREQUENT LIGHTNING...WIND GUSTS TO 30 MPH...AND VERY HEAVY RAINFALL. SOME STORMS COULD PRODUCE MINOR LOCALIZED FLOODING...MAINLY IN URBAN AREAS AND IN LOW SPOTS NEAR CREEKS AND DITCHES. SHOWER AND THUNDERSTORM ACTIVITY OVER LAND SHOULD DISSIPATE DURING THE EVENING...WITH SCATTERED SHOWERS OR STORMS POSSIBLE OVER THE COASTAL WATERS DURING THE OVERNIGHT HOURS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE AGAIN SUNDAY AS ANOTHER DISTURBANCE CROSSES THE AREA...WITH FREQUENT LIGHTNING...GUSTY WINDS AND HEAVY RAINFALL POSSIBLE IN THE STRONGER STORMS. A MORE TYPICAL SUMMERTIME PATTERN WILL RESUME DURING THE WEEK WITH A DAILY CHANCE OF SHOWERS AND THUNDERSTORMS EACH AFTERNOON. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF STORM SPOTTERS IS NOT ANTICIPATED AT THIS TIME.
In the hours before
Special weather statement, Jul 18, 2:20 PM CDT, 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAKE CHARLES LA 220 PM CDT SAT JUL 18 2009 LAZ027-028-182000- RAPIDES LA-VERNON LA- 220 PM CDT SAT JUL 18 2009 ...SIGNIFICANT WEATHER ALERT FOR RAPIDES AND VERNON PARISHES UNTIL 300 PM CDT... AT 215 PM CDT...A LINE OF STRONG THUNDERSTORMS WAS INDICATED BY NATIONAL WEATHER SERVICE DOPPLER RADAR ALONG A LINE EXTENDING FROM 8 MILES NORTHWEST OF HINESTON TO 2 MILES NORTHWEST OF FORT POLK... MOVING EAST AT 15 MPH. * STRONG THUNDERSTORMS WILL BE NEAR... FORT POLK BY 225 PM CDT... LACAMP BY 235 PM CDT... HINESTON AND CALCASIEU BY 300 PM CDT... FREQUENT CLOUD TO GROUND LIGHTNING...PEA SIZE HAIL...AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM. HEAVY RAINFALL WILL CAUSE PONDING OF WATER ON AREA ROADWAYS...ESPECIALLY THOSE IN POOR DRAINAGE AREAS. RESIDENTS ARE ENCOURAGED TO MONITOR THE SITUATION CLOSELY AND BE PREPARED TO TAKE THE PROPER ACTIONS SHOULD A WARNING BE ISSUED. K. KUYPER
Special weather statement, Jul 18, 2:54 PM CDT, 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAKE CHARLES LA 254 PM CDT SAT JUL 18 2009 LAZ027-028-030>032-182100- RAPIDES LA-VERNON LA-EVANGELINE LA-ALLEN LA-BEAUREGARD LA- 254 PM CDT SAT JUL 18 2009 ...SIGNIFICANT WEATHER ALERT FOR RAPIDES...VERNON...EVANGELINE... ALLEN AND BEAUREGARD PARISHES UNTIL 400 PM CDT... AT 252 PM CDT...A LINE OF STRONG THUNDERSTORMS WAS INDICATED BY NATIONAL WEATHER SERVICE DOPPLER RADAR ALONG A LINE EXTENDING FROM 3 MILES WEST OF TURKEY CREEK TO 10 MILES NORTH OF SINGER...MOVING SOUTH AT 20 MPH. * OTHER LOCATIONS IN THE ALERT INCLUDE BUT ARE NOT LIMITED TO UNION HILL...TURKEY CREEK...SUGARTOWN...SINGER...ROSEPINE...REEVES... REDDELL...RAGLEY...PITKIN...PINE PRAIRIE...ORETTA...OBERLIN... OAKDALE...MITTIE...MCNARY...MAMOU...LONGVILLE...LEBLANC... JUNCTION...GRANT...GLENMORA...EVANS...ELIZABETH...DRY CREEK...DE RIDDER...BUNDICK LAKE AND BEAVER. FREQUENT CLOUD TO GROUND LIGHTNING...PEA SIZE HAIL...AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THESE STORMS. HEAVY RAINFALL WILL CAUSE PONDING OF WATER ON AREA ROADWAYS...ESPECIALLY THOSE IN POOR DRAINAGE AREAS. RESIDENTS ARE ENCOURAGED TO MONITOR THE SITUATION CLOSELY AND BE PREPARED TO TAKE THE PROPER ACTIONS SHOULD A WARNING BE ISSUED. SHAMBURGER
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 4:28 PM CDT | Severe Thunderstorm Warning | LCH | Rapides | 69 hr |
| Jul 18, 4:40 PM CDT | Severe Thunderstorm Warning | LCH | Beauregard, Calcasieu, Jefferson Davis | 70 hr |
| Jul 18, 5:02 PM CDT | Severe Thunderstorm Warning | LCH | Calcasieu, Cameron | 71 hr |
| Jul 18, 5:03 PM CDT | Special Marine Warning | LCH | 4 days | |
| Jul 18, 5:04 PM CDT | Areal Flood Advisory | LCH | Calcasieu, Lafayette | 5 days |
| Jul 18, 5:04 PM CDT | Special Marine Warning | LCH | 4 days | |
| Jul 18, 5:22 PM CDT | Flash Flood Warning | LCH | Lafayette | 90 min |
| Jul 18, 5:22 PM CDT | Severe Thunderstorm Warning | LCH | Calcasieu, Cameron, Jefferson Davis, Rapides | 4 days |
| Jul 18, 5:47 PM CDT | Severe Thunderstorm Warning | LCH | Cameron | 5 days |
| Jul 18, 5:53 PM CDT | Special Marine Warning | LCH | 5 days | |
| Jul 18, 6:59 PM CDT | Special Marine Warning | LCH | 5 days |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2009Severe Thunderstorm Warnings in Texas, 2009Every severe thunderstorm warning in 2009
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.