Alert archive / Louisiana / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 263, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Sep 22, 2000, 7:34 AM CDT for Terrebonne Parish, Louisiana. It was in force for 41 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
- Sep 22, 2000, 7:34 AM CDT (12:34 UTC)
- Expired
- Sep 22, 2000, 8:15 AM CDT
- In force
- 41 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
County Terrebonne Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 0.6 hours before the alert went out and 150 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.
- Mixed-layer CAPE
- 492 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 755 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KLIX 221235 SVRNEW LAC109-221315- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 734 AM CDT FRI SEP 22 2000 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... TERREBONNE PARISH IN SOUTHEAST LOUISIANA * UNTIL 815 AM CDT * AT 730 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS OVER THE EASTERN PORTION OF ATACHAFALYA BAY MOVING NORTHEAST AROUND 20 MPH. * SEVERE THUNDERSTORMS WILL BE NEAR... DULAC AROUND 815 AM CDT THIS IS A DANGEROUS STORM WITH DAMAGING WINDS...STAY INDOORS AWAY FROM WINDOWS. REPORT SEVERE WEATHER TO THE NEAR7EST 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 Sep 22, 3:45 AM CDT, 3 hours 49 minutes earlier.
Area forecast discussion, Sep 22, 3:45 AM CDT, 3 hours 49 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 345AM CDT FRI SEP 22 2000 WHILE TS HELENE MOVES TOWARD FL PANHANDLE AND AWAY FROM THE AREAS THIS MORNING...THE MAIN WEATHER FEATURE AFFECTING THE AREA SHOULD BE A SHORT WAVE FEATURE IN THE WESTERLY MOVING ALONG THE UPPER TX AND SW LA COAST THIS MORNING. BOTH ETA AND AVN BRING THE SHORT WAVE ACROSS THE FORECAST AREA TODAY...WITH THE AVN BEING THE MOST AGGRESSIVE WITH SYSTEM. MODELS INDICATE PW NEAR 2.0 INCHES AND 850 S FLOW STREGHTENING TO 25 KT TODAY. KLCH RADAR INDICATING SCATTERED SHOWERS AND TSTMS MOVING NE ACROSS SE TX AND THE SW LA COASTAL WATERS ASSOCIATED WITH THIS SHORT WAVE. GUIDANCE NUMBERS IN THE LIKELY RANGE SEEMS APPROPRIATE WITH THE PATTERN AND CONSISTENT WITH THE PREVIOUS GUIDANCE VALUES AND ZONE FORECAST.LOCALLY HEAVY RAINFALL IS NOT OUT OF THE QUESTION TODAY AS SHORT WAVE TRAVERSES AREA AND PW NEAR 2.0. AFTER SHORT WAVE PASSES THROUGH TODAY AND EARLY THIS EVENING EXPECT SAT TO BE PARTLY CLOUDY...WITH A SW FLOW OF 15 MPH OFF THE GULF SUPPORTING TEMPS NEAR 90 AND DAYTIME SCT TSTMS. IN EXTENDED...LATEST MRF SUPPORTING COLD FRONT TRAVERSING REGION MON AND MON NIGHT WITH COOLER TEMPS. MCB 85/73/89/73 7331 BTR 86/73/90/75 7231 MSY 87/76/89/75 6231 GPT 85/76/86/75 6231 .NEW...SMALL CRAFT REMAIN IN PORT FROM PASCAGOULA TO SOUTHWEST PASS OF THE MISSISSIPPI RIVER. LA...NONE. MS...NONE 21
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; the sounding from the Mesonet's radiosonde archive.