Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 7, NWS Lake Charles, LA

January 29, 2001Iberia Parish, Saint Martin Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jan 29, 2001, 10:23 AM CST for Iberia Parish, Saint Martin Parish, Louisiana. It was in force for 52 min. 4 reports came from 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, with what was reported inside it.

The facts

Issued
Jan 29, 2001, 10:23 AM CST (16:23 UTC)
Expired
Jan 29, 2001, 11:15 AM CST
In force
52 min
Issued by
NWS Lake Charles, LA
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Iberia Parish, LA, Saint Martin Parish, LA

What was reported inside it

TimeReportWhereRemark
Jan 29, 10:43 AM CSTThunderstorm WindGrosse Tete, LASeveral trees were blown down along Highway 77.
Jan 29, 10:45 AM CSTThunderstorm WindZachary, LAThunderstorm winds blew down trees and power lines.
Jan 29, 10:55 AM CSTThunderstorm WindPride, LAThunderstorm winds blew down trees and power lines.
Jan 29, 10:55 AM CSTThunderstorm WindGreenwell Spgs, LATrees and power lines were blown down by thunderstorm winds.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jan 29, 8:00 AM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 4.4 hours before the alert went out and 161 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, Slidell Radar S, LA at 12:00Z on 2001-01-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2001-01-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 268 square meters per square second.1939587897Sfc1 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
26 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
600 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
268 m²/s²
0-3 km storm-relative helicity
337 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KLCH 291626
SVRLCH
LAC045-099-291715-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1023 AM CST MON JAN 29 2001

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  IBERIA PARISH IN SOUTH CENTRAL LOUISIANA
  UPPER ST. MARTIN PARISH IN SOUTH CENTRAL LOUISIANA

* UNTIL 1115 AM CST

* AT 1020 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM ALONG A LINE EXTENDING FROM 5 MILES            
  SOUTHWEST OF NEW IBERIA TO ST. MARTINVILLE...MOVING NORTHEAST AT   
  50 MPH.

* THIS STORM WILL BE NEAR...
  LOREAUVILLE BY 1030 AM CST
  BUTTE LA ROSE BY 1035 AM CST  

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 PM CST MONDAY
AFTERNOON FOR SOUTHWESTERN LOUISIANA.

LAT...LON 3030 9169 2981 9199 3057 9090 3105 9059

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 Jan 29, 10:00 AM CST, 23 minutes earlier.

Area forecast discussion, Jan 29, 10:00 AM CST, 23 minutes before
SOUTHEAST TEXAS AND SOUTHWEST LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1000 AM CST MON JAN 29 2001

CURRENTLY...A WEAKENING SQUALL LINE AHEAD OF A COLD FRONT ACROSS THE
EASTERN PORTION OF THE FORECAST AREA FROM SIMMESPORT TO INTRACOASTAL
CITY AND INTO THE GULF WATERS BEYOND 60 MILES SOUTH OF WHITE LAKE
WAS MOVING OFF TO THE EAST AT NEARLY 40 MPH. LINE AND COLD FRONT
SHOULD BE OUT OF THE FORECAST AREA SHORTLY AFTER NOON.

BEHIND THE FRONT TEMPS DROP QUICKLY TO NEAR 50...ABOUT A 15 TO 20
DEGREE DIFFERENCE.

CLEARING LINE IN CENTRAL TEXAS FROM WACO TO SAN ANTONIO MAKING STEADY
PROGRESS TO THE EAST AND SHOULD MAKE IT INTO THE SOUTHEAST TEXAS
PORTION OF THE FORECAST AREA BY MID AFTERNOON.

WOULD EXPECT TO UPDATE ZONES AGAIN AROUND NOON TIME OR SOONER TO
CLEAR AREA OF THE WATCH.  AT THAT TIME WILL MAKE ADJUSTMENTS AS
NECESSARY TO CLOUDS AND TEMPS.

7-RUA

.LCH...SMALL CRAFT ADVISORY HIGH ISLAND TO ATCHAFALAYA RIVER...
    ...GMZ450-455-470-475.
SEVERE THUNDERSTORM WATCH NUMBER 10 UNTIL 20Z...
    ...LAZ028-029-031>033-042>045-051>055.

.PREVIOUS NUMBERS...
AEX 62/43/67/44 9000
BPT 66/44/69/46 9000
LCH 67/46/69/46 9000
LFT 70/47/69/46 9000

In the hours before

Local storm report, Jan 29, 7:19 AM CST, 3 hours 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
719 AM CST MON JAN 29 2001

TIME(CST)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0518 AM    JASPER                    TX   WIND DAMAGE
01/29/01   JASPER                         LAW ENFORCEMENT REPORTED
                                          TREES BLOWN DOWN AT HOPKINS
                                          DRIVE

0533 AM    BROOKELAND                TX   WIND DAMAGE
01/29/01   JASPER                         LAW ENFORCEMENT REPORTED
                                          TREES BLOWN DOWN ALONG
                                          HIGHWAY 96 AT BROOKELAND

0545 AM    EVADALE                   TX   WIND DAMAGE
01/29/01   JASPER                         LAW ENFORCEMENT REPORTED
                                          TREES BLOWN DOWN AT JONES
                                          ROAD IN EVADALE

0603 AM    BURKEVILLE                TX   WIND DAMAGE
01/29/01   NEWTON                         TREES BLOWN DOWN ACROSS
                                          HIGHWAYS 87 AND 692 AT
                                          BURKEVILLE
Special weather statement, Jan 29, 7:30 AM CST, 2 hours 53 minutes before
GMZ450-455-470-475-LAZ027>033-041>045-051>055-TXZ180>182-201-215-216-
291500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
730 AM CST MON JAN 29 2001

...SEVERE THUNDERSTORM WATCH NUMBER 9 CONTINUES UNTIL 900 AM THIS
MORNING FOR CENTRAL...SOUTHWEST AND SOUTH CENTRAL LOUISIANA...

...SEVERE THUNDERSTORM WATCH NUMBER 9 HAS BEEN CANCELLED FOR THE
FOLLOWING COUNTIES IN SOUTHEAST TEXAS...  HARDIN...JASPER...
JEFFERSON...NEWTON...ORANGE...TYLER

A LINE OF SHOWERS AND SEVERE THUNDERSTORMS EXTENDED FROM FLATWOODS IN
NORTHWEST RAPIDES PARISH TO DEQUINCY IN NORTHERN CALCASIEU PARISH TO
HACKBERRY IN CAMERON PARISH. THE LINE EXTENDED OFFSHORE FOR 60
NAUTICAL MILES. THE LINE WAS MOVING EAST 40 MPH...WHILE THE
INDIVIDUAL STORMS WERE RACING NORTHEAST AT 50 MPH OR MORE.

SOME OF THE STRONGER STORMS IN THE LINE WILL PRODUCE WINDS IN EXCESS
OF 50 MPH WHICH WILL BLOW OVER TREES AND DAMAGE POWER LINES. THEREG
IS A DANGER TO MOTORISTS FROM TREES FALLING ACROSS ROADWAYS.

THE THREAT OF SEVERE WEATHER HAS ENDED OVER SOUTHEAST TEXAS AND
THOSE COUNTIES HAVE BEEN CLEARED FROM THE WATCH.

SPARKS
Local storm report, Jan 29, 8:13 AM CST, 2 hours 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
813 AM CST MON JAN 29 2001

TIME(CST)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0645 AM    GRANT                     LA   WIND DAMAGE
01/29/01   ALLEN                          TREES DOWN REPORTED BY
                                          LOCAL TELEVISION STATION.

0730 AM    BOYCE                     LA   WIND DAMAGE
01/29/01   RAPIDES                        SEVERAL TREES DOWN
                                          INCLUDING ONE ACROSS A
                                          TRAILER REPORTED BY FIRE
                                          CHIEF.
Special weather statement, Jan 29, 9:30 AM CST, 53 minutes before
GMZ455-475-LAZ028-029-031>033-042>045-051>055-292000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
930 AM CST MON JAN 29 2001

...SEVERE THUNDERSTORM WATCH NUMBER 10 HAS BEEN CANCELLED FOR
RAPIDES...ALLEN...JEFF DAVIS AND CAMERON PARISHES...

...SEVERE THUNDERSTORM WATCH NUMBER 10 CONTINUES FOR THE FOLLOWING
PARISHES UNTIL 2 PM...AVOYELLES...EVANGELINE...SAINT LANDRY...
ACADIA...LAFAYETTE...UPPER SAINT MARTIN...VERMILION...IBERIA...
SAINT MARY AND LOWER SAINT MARTIN...

AT 920 AM...A LINE OF SHOWERS AND THUNDERSTORMS EXTENDED FROM
THE EASTERN SECTIONS OF AVOYELLES PARISH TO THE COAST NEAR PECAN
ISLAND IN VERMILION PARISH AND INTO THE GULF BEYOND 60 MILES SOUTH
OF WHITE LAKE. THE LINE WAS MOVING EAST AT 40 MPH. DAMAGING WINDS
IN EXCESS OF 50 MPH WILL BE POSSIBLE AHEAD OF THIS LINE. THESE WINDS
CAN KNOCK DOWN TREES AND POWER LINES. THERE IS A DANGER TO MOTORISTS
FROM TREES FALLING ACROSS ROADWAYS.

BEHIND THIS LINE...SHOWERS AND A FEW THUNDERSTORMS WILL BE POSSIBLE
THROUGH THIS AFTERNOON BUT NO SEVERE WEATHER IS EXPECTED.
THEREFORE...THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR
RAPIDES...ALLEN...JEFF DAVIS AND CAMERON PARISHES.

RUA
Local storm report, Jan 29, 10:15 AM CST, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES, LA
1015 AM CST MON JAN 29 2001

TIME(CST)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0944 AM    LAFAYETTE                 LA   WIND DAMAGE
01/29/01   LAFAYETTE                      LAFAYETTE 911 REPORTS
                                          TRAILER DAMAGED AT 5411 W.
                                          CONGRESS STREET.

0945 AM    SCOTT                     LA   WIND DAMAGE
01/29/01   LAFAYETTE                      SKYWARN SPOTTER REPORTS
                                          WINDOW BLOWN OUT AT SCOTT
                                          MIDDLE SCHOOL.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 29, 6:07 AM CSTSevere Thunderstorm WarningLCHBeauregard, Vernon53 min
Jan 29, 7:10 AM CSTSevere Thunderstorm WarningLCHBeauregard, Calcasieu50 min
Jan 29, 7:10 AM CSTSevere Thunderstorm WarningLCHAllen, Rapides, Vernon50 min
Jan 29, 8:04 AM CSTSevere Thunderstorm WarningLCHAllen, Jefferson Davis56 min
Jan 29, 8:04 AM CSTSevere Thunderstorm WarningLCHRapides56 min

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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.