Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 43, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Feb 13, 1997, 12:24 AM CST for Jefferson Parish, Saint Charles Parish, Louisiana. It was in force for 51 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
- Feb 13, 1997, 12:24 AM CST (06:24 UTC)
- Expired
- Feb 13, 1997, 1:15 AM CST
- In force
- 51 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Jefferson Parish, LA, Saint Charles Parish, LA
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 12, 9:15 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 6.4 hours before the alert went out and 72 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 536 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 690 m²/s²
- 0-3 km storm-relative helicity
- 1324 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KNEW 130628 RRA SVRNEW LAC051-089-130715- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 1224 AM CST THU FEB 13 1997 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 115 AM CST FOR RESIDENTS IN THE FOLLOWING LOCATIONS... IN SOUTHEAST LOUISIANA ...NORTHERN JEFFERSON PARISH...ST. CHARLES PARISH AND THE ADJACENT COASTAL WATERS AT 1225 AM CST...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM HAHNVILLE TO DES ALLEMANDS MOVING NORTHEAST AT 50 MPH. DAMAGING WINDS CAN BE EXPECTED WITH THE PASSAGE OF THESE STORMS. SHORTLY AFTER MIDNIGHT...LAFOURCHE PARISH SHERIFF'S OFFICE REPORTED EXTENSIVE WIND DAMAGE IN THE LOCKPORT AREA WITH THE PASSAGE OF THESE STORMS. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. &
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.
In the hours before
Special weather statement, Feb 13, 12:10 AM CST, 14 minutes before
LAZ061-062-064-060-058-040-038-130915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 1210 AM CST THU FEB 13 1997 ...HIGH WIND GUSTS CAN BE EXPECTED ON THE ELEVATED HIGHWAYS IN AND AROUND THE NEW ORLEANS METRO AREA... STRONG WIND GUSTS NEAR 50 MPH WERE AFFECTING THE NEW ORLEANS METRO AREA JUST ABOVE THE GROUND LEVEL. AS A RESULT...DRIVING WILL BE HAZARDOUS WHILE CROSSING THE ELEVATED PORTIONS OF I-10...THE MISSISSIPPI RIVER BRIDGES AND THE LAKE PONTCHARTRAIN SPANS. AT MIDNIGHT...ORLEANS PARISH OFFICIALS REPORTED A COUPLE OF VEHICLES MAY HAVE BEEN BLOWN OFF I-10. RADAR INDICATED WINDS NEAR 50 MPH OCCURRING JUST A FEW HUNDRED FEET ABOVE THE GROUND. MOTORISTS ARE URGED TO USE EXTREME CAUTION WHILE TRAVELLING ACROSS THE REGION TONIGHT. HOLD THE STEERING WHEEL WITH BOTH HANDS AND MAINTAIN A SAFE SPEED AND DISTANCE FROM OTHER VEHICLES. THE HIGH WINDS SHOULD DIMINISH AROUND SUNRISE. &
Special weather statement, Feb 13, 12:16 AM CST, 8 minutes before
LAZ061-062-064-060-058-040-038-130915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 1210 AM CST THU FEB 13 1997 ...HIGH WIND GUSTS CAN BE EXPECTED ON THE ELEVATED HIGHWAYS IN AND AROUND THE NEW ORLEANS METRO AREA... STRONG WIND GUSTS NEAR 50 MPH WERE AFFECTING THE NEW ORLEANS METRO AREA JUST ABOVE THE GROUND LEVEL. AS A RESULT...DRIVING WILL BE HAZARDOUS WHILE CROSSING THE ELEVATED PORTIONS OF I-10...THE MISSISSIPPI RIVER BRIDGES AND THE LAKE PONTCHARTRAIN SPANS. AT MIDNIGHT...ORLEANS PARISH OFFICIALS REPORTED A COUPLE OF VEHICLES MAY HAVE BEEN BLOWN OFF I-10. RADAR INDICATED WINDS NEAR 50 MPH OCCURRING JUST A FEW HUNDRED FEET ABOVE THE GROUND. MOTORISTS ARE URGED TO USE EXTREME CAUTION WHILE TRAVELLING ACROSS THE REGION TONIGHT. HOLD THE STEERING WHEEL WITH BOTH HANDS AND MAINTAIN A SAFE SPEED AND DISTANCE FROM OTHER VEHICLES. THE HIGH WINDS SHOULD DIMINISH AROUND SUNRISE. &
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 12, 11:43 PM CST | Severe Thunderstorm Warning | LIX | Lafourche, Terrebonne | 32 min |
| Feb 13, 12:22 AM CST | Flash Flood Warning | LIX | Lafourche, Terrebonne | 2 hr |
| Feb 13, 1:04 AM CST | Severe Thunderstorm Warning | LIX | Orleans, Plaquemines | 26 min |
| Feb 13, 1:29 AM CST | Severe Thunderstorm Warning | LIX | Saint Bernard | 31 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 1997Every severe thunderstorm warning in 1997
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.