Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 95, NWS Lake Charles, LA

June 30, 2001Beauregard Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jun 30, 2001, 3:25 PM CDT for Beauregard Parish, Louisiana. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jun 30, 2001, 3:25 PM CDT (20:25 UTC)
Expired
Jun 30, 2001, 4:15 PM CDT
In force
50 min
Issued by
NWS Lake Charles, LA
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Beauregard Parish, LA

The radar

The Lake Charles radar (KLCH), 59 km from the middle of the area, began a volume at 20:29 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, 8.4 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-pSkew-T log-p diagram, Lake Charles Mun, LA at 12:00Z on 2001-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1713 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2001-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 square meters per square second.1939Sfc1 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
1713 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
890 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
-4 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

107 
WUUS54 KLCH 302026
SVRLCH
LAC011-302115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
325 PM CDT SAT JUN 30 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

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

* UNTIL 415 PM CDT

* AT 319 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM 5 MILES WEST OF LONGVILLE...MOVING NORTHEAST 
  AT 10 MPH.

* THIS STORM WILL BE NEAR...
  LONGVILLE BY 330 PM CDT
  BUNDICK LAKE BY 410 PM CDT
  DRY CREEK 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 3067 9340 3051 9335 3066 9303 3077 9309

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 30, 2:55 PM CDT, 30 minutes earlier.

Area forecast discussion, Jun 30, 2:55 PM CDT, 30 minutes before
SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
255 PM CDT SAT JUN 30 2001

WITH SOUTHWEST FLOW AT THE SURFACE MOST OF THE SHOWERS AND
THUNDERSTORMS HAVE BEEN EAST OF A LEESVILLE TO LAKE CHARLES
LINE. AS YET...NO REAL GOOD CELL MERGERS TO PRODUCE ANY PULSE
SEVERE WEATHER...HOWEVER A QUICK INCH OF RAIN IN 45 MINUTES
HAS PUSHED THE VERMILION RIVER BACK OVER FLOOD STAGE AS OF A
FEW MINUTES AGO.

MID AND UPPER LEVEL TROF EXTENDING FROM THE MID MISSISSIPPI VALLEY
SOUTH INTO THE NORTHWEST GULF IS EXPECTED TO MOVE SOUTH AND SOUTHWEST
OVER THE NEXT COUPLE OF DAYS.

WITH MOIST AND UNSTABLE AIRMASS IN PLACE (PWAT 1.75 INCHES AND CAPES
OVER 3000 J/KG) WILL CONTINUE ABOVE CLIMO POPS FOR SUNDAY. WITH
RELATIVELY COOL POOL ALOFT ON SUNDAY STILL COULD SEE ONE OR TWO PULSE
SEVERE STORMS.

ON MONDAY...WESTERLY MOVING TROPICAL WAVE ALONG THE NORTHERN GULF
SHOULD BE IMPACTING THE AREA. MOISTURE VALUES INCREASE FURTHER WITH
MEAN RELATIVE HUMIDITY OVER 75% AND PWAT NEARING 2 INCHES. WITH THIS
DEEP MOISTURE AND SOME WARMING IN THE MID LEVELS...LESS LIKELY TO SEE
ANY SEVERE STORMS BUT HEAVY RAINFALL COULD BE A PROBLEM.

EXTENDED...TROPICAL WAVE WILL MEET UP WITH UPPER LEVEL TROF AND PUSH
EAST OF THE AREA ON TUESDAY. HOWEVER...STILL ENOUGH MOISTURE TO
PRODUCE DIURNAL SHOWERS AND STORMS THROUGH THE HOLIDAY INTO THE
LATTER PARTS OF THE WEEK.

7-RUA

.LCH...NONE.

.PRELIM NUMBERS...
BPT 73/89/73/87/74 25263
LCH 72/88/72/86/74 25263
LFT 70/88/71/85/74 36463
AEX 67/89/70/88/72 36363

Nearby

Severe Thunderstorm Warnings in Louisiana, 2001Every severe thunderstorm warning in 2001

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.