Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 25, NWS Lake Charles, LA

March 9, 2001Iberia Parish, St. Mary Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Mar 9, 2001, 1:22 AM CST for Iberia Parish, St. Mary Parish, Louisiana. It was in force for 53 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: Mar 9, 2001, 1:22 AM CST (07:22 UTC)
Expired: Mar 9, 2001, 2:15 AM CST
In force: 53 min
Issued by: NWS Lake Charles, LA
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Iberia Parish, LA, St. Mary Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 7.4 hours before the alert went out and 163 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1108 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 148 m²/s²
0-3 km storm-relative helicity: 259 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.

000 
WUUS54 KLCH 090724
SVRLCH
LAC045-101-090815-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
122 AM CST FRI MAR 9 2001

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

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

* UNTIL 215 AM CST

* AT 122 AM CST...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG 
  A LINE EXTENDING FROM 5 MILES WEST OF WEEKS ISLAND TO 28 MILES     
  WEST OF FRANKLIN MOVING EAST AT 45 MPH.

* THIS STORM WILL BE NEAR...
  WEEKS ISLAND BY 130 AM CST
  BALDWIN...CHARENTON...FRANKLIN BY 150 AM CST
  BAYOU VISTA...PATTERSON BY 155 AM CST
  BERWICK BY 200 AM CST
  MORGAN CITY BY 205 AM CST

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

DESTRUCTIVE WINDS CAN BE EXPECTED - TAKE COVER NOWm! VEHICLES AND
MOBIL HOMES ARE NOT SAFE.

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

LAT...LON 2989 9193 2963 9182 2952 9181 2948 9112
          2972 9111 2978 9139 2993 9145

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 Mar 8, 8:20 PM CST, 5 hours 2 minutes earlier.

Area forecast discussion, Mar 8, 8:20 PM CST, 5 hours 2 minutes before

SOUTHEAST TEXAS AND SOUTHWEST LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
820 PM CST THU MAR 8 2001

THE 500 MB TROUGH IS RAPIDLY MOVING SOUTHEAST OVER EASTERN TEXAS
THIS EVENING CAUSING A LINE OF THUNDERSTORMS...SOME HAVE BEEN
SEVERE...TO DEVELOPE OVER SOUTHEAST TEXAS THIS EVENING.  THIS LINE
CONTINUES TO MOVE EAST AND COULD BE INTO OUR AREA LATER TONIGHT.
WILL CONTINUE TO HAVE HIGH POPS IN THE FORECAST AND SOME POSSIBLE
SEVERE IN THE SOUTHERN ZONES.  THEREFORE...THE PREVIOUS FORECAST
PACKAGE LOOKS GOOD AT THIS TIME.  NO UPDATES NEEDED AT THIS TIME.

MARINE...BOY035 INDICATES A SOUTHEAST WIND OF 16 KNOTS WITH 5 FOOT
SEAS.  WILL KEEP SMALL CRAFT UP FOR TONIGHT.  WINDS WILL SWITCH FROM
THE NORTHWEST LATER TONIGHT WITH SEAS CONTINUING TO BE NEAR 6
FEET.

.LCH...SCA FOR GMZ450-455-470-475.

.PRELIM NUMBERS...
AEX 45/68/49/60/37 00+30
BPT 48/71/53/63/42 00+20
LCH 47/70/53/63/40 00+30
LFT 47/70/52/63/41 00+30

55

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 8, 10:14 PM CST	Severe Thunderstorm Warning	LCH	Calcasieu, Cameron	61 min
Mar 9, 12:11 AM CST	Severe Thunderstorm Warning	LCH	Vermilion	64 min
Mar 9, 12:57 AM CST	Severe Thunderstorm Warning	LCH	Lafayette, Saint Landry	63 min
Mar 9, 1:43 AM CST	Tornado Warning	LCH	St. Mary	62 min
Mar 9, 2:00 AM CST	Severe Thunderstorm Warning	LCH	Saint Martin	30 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2001 Every 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.