Alert archive / Louisiana / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 158, NWS New Orleans, LA

July 23, 2000East Baton Rouge Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Jul 23, 2000, 8:17 AM CDT for East Baton Rouge Parish, Louisiana. It was in force for 58 min. 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 23, 2000, 8:17 AM CDT (13:17 UTC)
Expired: Jul 23, 2000, 9:15 AM CDT
In force: 58 min
Issued by: NWS New Orleans, LA
Area: Whole counties

County East Baton Rouge Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 1.3 hours before the alert went out and 138 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: 1193 J/kg
Mixed-layer CIN: -138 J/kg
Mixed-layer LCL: 888 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 34 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 231318
SVRNEW
LAC033-037-077-121-125-231415-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
817 AM CDT SUN JUL 23 2000

THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST BATON ROUGE PARISH IN SOUTHEAST LOUISIANA
  EAST FELICIANA PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITIES OF...CLINTON...JACKSON
  POINTE COUPEE PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITY OF NEW ROADS
  WEST BATON ROUGE PARISH IN SOUTHEAST LOUISIANA
  WEST FELICIANA PARISH IN SOUTHEAST LOUISIANA
  THIS INCLUDES THE CITY OF ST. FRANCISVILLE

* UNTIL 915 AM CDT

* AT 811 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER BATCHELOR...OR ABOUT 19 MILES NORTHWEST OF
  NEW ROADS...MOVING SOUTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  3 MILES NORTHEAST OF MORGANZA AT 840 AM CDT
  OVER NEW ROADS...7 MILES SOUTHWEST OF ST. FRANCISVILLE AT 900 AM
  CDT

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 Jul 23, 3:26 AM CDT, 4 hours 51 minutes earlier.

Area forecast discussion, Jul 23, 3:26 AM CDT, 4 hours 51 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA
235 AM CDT SUN JUL 23 2000

RATHER COMPLEX AND UNUSUAL PATTERN OVER THE CWA FOR THE NEXT FEW
DAYS. WILL GO WITH A COMPROMISE BETWEEN THE AVN AND ETA. MID AND
UPPER LEVEL RIDGE WILL REMAIN OVER THE SW WHILE TROF OVER THE
EASTERN US DIGS OVER THE LOWER MS VALLEY. THE AVN EVEN CUTS OFF A
MID LEVEL LOW AND MAINTAINS JET LEVEL SW WINDS OVER THE CWA. MODELS
DRIES THE MID AND UPPER LEVELS BEGINNING MON. AM A LITTLE CONCERNED
ABOUT THIS WITH THE DEVELOPMENT OF LOW OVER LOWER MS VALLEY. WILL
MAINTAIN HIGH POPS TODAY AND TONIGHT AS MODELS IN GOOD AGREEMENT
WITH A SHORT WAVE MOVING THROUGH THE CWA TODAY AND ANOTHER SHORT
WAVE MOVING THROUGH TONIGHT AND MON. WILL MAINTAIN THREAT OF SVR
TSTMS TDA OVER ALL OF THE CWA TODAY AND ACROSS THE SOUTH PORTION
TONIGHT AS THETA-E AXIS SHIFTS SOUTHEAST ACROSS LA COASTAL SECTIONS
BY MON MORNING. STILL EXPECT COLD AIR AT 5H LATER IN FORECAST
PERIOD. THIS SHOULD INCREASE INSTABILITY. MAIN CONCERN IS THE MODELS
MAY BE DRYING THE AREA TOO FAST AT MID AND UPPER LEVELS. AM GOING
MUCH HIGHER THAN GUIDANCE. WILL LEAVE OFF MENTION OF HEAVY PCPN AS
CELLS SHOULD BE MOVING RATHER FAST TO THE SE. HOWEVER...ISOLATED
HEAVY AMOUNTS POSSIBLE. WILL BE CLOSE TO MOS TEMPS. MUCH MORE TO BE
SAID...BUT NEED TO GET A JUMP ON THE FORECAST.

MCB 91/67/90/65 6632    BTR 91/69/90/67 6632
MSY 93/72/90/70 6653    GPT 91/70/90/70 7753

.NEW...NONE.
LA...NONE.
MS...NONE.
17

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 7:01 PM CDT	Tornado Warning	LIX	Orleans	29 min
Jul 22, 7:05 PM CDT	Severe Thunderstorm Warning	LIX	Livingston	25 min
Jul 22, 7:51 PM CDT	Severe Thunderstorm Warning	LIX	Jefferson, Orleans, Plaquemines, Saint Bernard	54 min
Jul 22, 7:51 PM CDT	Severe Thunderstorm Warning	LIX	Saint Charles, Saint John the Baptist	54 min
Jul 22, 8:35 PM CDT	Severe Thunderstorm Warning	LIX	Jefferson, Lafourche, Saint Charles	55 min
Jul 22, 8:35 PM CDT	Severe Thunderstorm Warning	LIX	Plaquemines	55 min
Jul 22, 10:15 PM CDT	Severe Thunderstorm Warning	LIX	Lafourche	45 min
Jul 23, 8:17 AM CDT	Severe Thunderstorm Warning	LIX	East Feliciana, Pointe Coupee, West Baton Rouge, West Feliciana	58 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2000 Every 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; the sounding from the Mesonet's radiosonde archive.