Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 191, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Jul 7, 1997, 12:27 PM CDT for Jefferson Parish, Saint Charles Parish, Louisiana. It was in force for 33 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 7, 1997, 12:27 PM CDT (17:27 UTC)
- Expired
- Jul 7, 1997, 1:00 PM CDT
- In force
- 33 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Jefferson Parish, LA, Saint Charles Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 5.5 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
- 924 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 1030 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 49 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 071727 RRA SVRNEW LAC051-089-071800- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 1227 PM CDT MON JUL 7 1997 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 100 PM CDT FOR RESIDENTS IN THE FOLLOWING LOCATIONS... IN SOUTHEAST LOUISIANA ...NORTHERN JEFFERSON PARISH ...SOUTHEASTERN ST. CHARLES PARISH AND THE ADJACENT COASTAL WATERS AT 1225 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM OVER LAKE SALVADOR MOVING EAST-NORTHEAST AT 15 MILES AN HOUR. A FUNNEL CLOUD WAS REPORTED WITH THIS STORM. THE TOWN OF BARATARIA IS IN THE PATH OF THIS STORM. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. &
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, Jul 7, 11:00 AM CDT, 1 hour 27 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-081200- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1100 AM CDT MON JUL 7 1997 AFTERNOON SEABREEZE THUNDERSTORMS WILL BE THE PRIMARY CONCERN TODAY. LOCAL DOWNBURST WINDS OF 35 TO 45 MPH ARE POSSIBLE WITH SOME OF THE EARLIER DEVELOPING STORMS. OTHERWISE...BRIEF HEAVY RAINS OF 1 TO 2 INCHES PER HOUR AND LIGHTNING WILL BE THE PREDOMINANT STORM CONDITIONS THROUGH SUNSET. SOME OF THE THUNDERSTORMS NEAR WATER MAY ALSO SPAWN A WATERSPOUT OR TWO...MAINLY BEFORE 1 PM.
Special weather statement, Jul 7, 11:23 AM CDT, 1 hour 4 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-081200- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1100 AM CDT MON JUL 7 1997 AFTERNOON SEABREEZE THUNDERSTORMS WILL BE THE PRIMARY CONCERN TODAY. LOCAL DOWNBURST WINDS OF 35 TO 45 MPH ARE POSSIBLE WITH SOME OF THE EARLIER DEVELOPING STORMS. OTHERWISE...BRIEF HEAVY RAINS OF 1 TO 2 INCHES PER HOUR AND LIGHTNING WILL BE THE PREDOMINANT STORM CONDITIONS THROUGH SUNSET. SOME OF THE THUNDERSTORMS NEAR WATER MAY ALSO SPAWN A WATERSPOUT OR TWO...MAINLY BEFORE 1 PM.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 12:22 PM CDT | Tornado Warning | LIX | Saint Bernard | 38 min |
| Jul 7, 1:40 PM CDT | Flash Flood Warning | LIX | Orleans, Plaquemines, Saint Bernard | 2 hr |
| Jul 7, 3:39 PM CDT | Severe Thunderstorm Warning | LIX | Pointe Coupee, West Feliciana | 51 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.