Alert archive / Louisiana / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 202, NWS New Orleans, LA

August 24, 2000Pointe Coupee Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Aug 24, 2000, 5:58 PM CDT for Pointe Coupee Parish, Louisiana. It was in force for 22 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 24, 2000, 5:58 PM CDT (22:58 UTC)
Expired
Aug 24, 2000, 6:20 PM CDT
In force
22 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Pointe Coupee Parish, LA

What was reported inside it

TimeReportWhereRemark
Aug 24, 6:00 PM CDTThunderstorm WindFordoche, LASeveral trees were knocked down.
Aug 24, 6:00 PM CDTThunderstorm WindLivonia, LASeveral trees were blown down.

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 nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 11.0 hours before the alert went out and 167 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 2000-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2018 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 2000-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
2018 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
660 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
11 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 KLIX 242308 COR
SVRNEW
TTAA00 KDEN 242258

LAC077-242320-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION TO HEADER
NATIONAL WEATHER SERVICE NEW ORLEANS LA
558 PM CDT THU AUG 24 2000

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN POINTE COUPEE PARISH IN SOUTHEAST LOUISIANA

* UNTIL 620 PM CDT

* AT 555 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM OVER LIVONIA...MOVING WEST AT 10 MPH.


THIS IS A DANGEROUS STORM WITH DAMAGING WINDS...STAY INDOORS AWAY
FROM WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN NEW ORLEANS.

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 New Orleans, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 24, 2:30 PM CDT, 3 hours 28 minutes earlier.

Area forecast discussion, Aug 24, 2:30 PM CDT, 3 hours 28 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA
230 PM CDT THU AUG 24 2000

PRECIPITATION COVERAGE HAS BEEN MORE LIMITED ACROSS THE FORECAST
AREA THIS AFTERNOON AND THIS TREND SHOULD CONTINUE THROUGH THE NEXT
COUPLE OF DAYS. MID/UPPER LEVEL RIDGE THAT HAS DOMINATED THE
SOUTHERN CONUS RECENTLY HAS SHIFTED WESTWARD AND WAS CENTERED OVER
TX AND OK THIS MORNING. MODELS SIMILAR IN CONTINUING TO RETROGRADE
THIS FEATURE ACROSS THE CENTRAL AND SOUTHERN PLAINS AND ROCKIES
DURING THE PERIOD WHILE AMPLIFYING AN UPPER TROUGH OVER THE EASTERN
U.S.  MODELS CONTINUE TO ADVERTISE DRIER AIR WORKING ITS WAY ACROSS
THE AREA INTO FRIDAY WITH PRECIPITABLE WATERS VALUES FALLING TO
AROUND 1.50 INCHES AND MEAN LAYERED RH VALUES TO AROUND 50 PERCENT
BEFORE REBOUNDING SOMEWHAT ON SATURDAY IN ADVANCE OF A WEAK SURFACE
TROUGH/FRONT MOVING INTO THE SE U.S.. ALTHOUGH ATMOSPHERE FORECAST
TO BE DRIER ACROSS THE AREA ON FRIDAY...HAVE OPTED TO LEAVE WIDELY
SCATTERED CONVECTION IN THE FORECAST AS SHORTWAVE CURRENTLY MOVING
THROUGH THE MID MS VALLEY MOVES AROUND THE RIDGE AND ACROSS THE
FORECAST AREA FRIDAY AND FRIDAY NIGHT. LOW LEVEL FLOW FORECAST TO
BECOME MORE SOUTHERLY FRIDAY AFTERNOON WHICH SHOULD HELP SET UP A
WEAK SEA BREEZE. REMNANTS OF DEBBY NOW GENERALLY FORECAST TO MOVE W
ACROSS THE GULF...THEREFORE PLAN TO HAVE ONLY ISOLATED TO WIDELY
SCATTERED DIURNAL CONVECTION EACH DAY DURING THE EXTENDED PERIOD OF
THE FORECAST.

MCB 71/95/71/94 0212     BTR 73/93/73/93 0212
MSY 75/93/75/93 0212     GPT 73/93/73/93 0212

.NEW...NONE
LA...NONE.
MS...NONE.

11

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 24, 12:20 PM CDTSevere Thunderstorm WarningLIXLafourche, Saint Charles40 min
Aug 24, 4:01 PM CDTSevere Thunderstorm WarningLIXTangipahoa29 min
Aug 24, 4:21 PM CDTSevere Thunderstorm WarningLIXLivingston, Saint Helena39 min
Aug 24, 5:00 PM CDTSevere Thunderstorm WarningLIXEast Feliciana30 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2000Every severe thunderstorm warning in 2000

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.