Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 237, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Jul 22, 1997, 4:33 PM CDT for Washington Parish, Louisiana. It was in force for 42 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 22, 1997, 4:33 PM CDT (21:33 UTC)
- Expired
- Jul 22, 1997, 5:15 PM CDT
- In force
- 42 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
County Washington Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 9.6 hours before the alert went out and 75 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
- 3464 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 603 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- -24 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 222132 RRA SVRNEW LAC117-222215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 433 PM CDT TUE JUL 22 1997 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 PM CDT FOR RESIDENTS IN THE FOLLOWING LOCATION... IN SOUTHEAST LOUISIANA ...WASHINGTON PARISH AT 4:30 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 14 MILES NORTHWEST OF FRANKLINTON. THIS STORM WAS MOVING SOUTHEAST AT 15 MPH. THIS STORM WILL EFFECT FRANKLINTON WITH THE NEXT 15 TO 20 MINUTES. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY hLIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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 22, 10:34 AM CDT, 5 hours 59 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-180500 THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1030 PM CDT MON JUL 21 1997 A MOIST UNSTABLE ATMOSPHERE PERSISTS OVER SOUTHEAST LOUISIANA... SOUTHWEST AND COASTAL MISSISSIPPI. SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE AREA THIS AFTERNOON AS TEMPERATURES CLIMB INTO THE UPPER 80S/LOWER 90S. THE HIGH MOISTURE CONTENT OF THE AIRMASS OVER THE REGION WILL LIKLEY RESULT IN LOCALLY HEAVY RAINFALL AND THE POSSIBILITY OF STRONG GUSTY WINDS...HOWEVER THERE IS LITTLE TO NO RISK OF SEVERE THUNDERSTORMS. SHOWER AND THUNDERSTORM ACTIVITY WILL GRADUALLY DIMINISH THIS EVENING. FOR THE LATEST WEATHER INFORMATION PLEASE LISTEN TO TELEVISION.. RADIO..OR NOAA WEATHER RADIO OR VISIT THE NEW ORLEANS/BATON ROUGE AREA FORECAST OFFICE HOMEPAGE ON THE INTERNET. LAZ034>040-046>049-056>070-MSZ068>071-080>082-180500 THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1230 PM CDT SUN JUL 20 1997 SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE AREA THIS AFTERNOON AS TEMPERATURES CLIMB INTO THE LOWER 90S. SEVERE THUNDERSTORMS ARE NOT EXPECTED ALTHOUGH SOME GUSTY WINDS ARE POSSIBLE. THE ATMOSPHERE IS VERY MOIST RAISING THE POTENTIAL FOR HEAVY RAINFALL WITH INDIVIDUAL STORMS. THE THUNDERSTORM ACTIVITY SHOULD BEGIN TO ABATE THIS EVENING.
Special weather statement, Jul 22, 10:35 AM CDT, 5 hours 58 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-180500 THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1030 PM CDT TUE JUL 22 1997 A MOIST UNSTABLE ATMOSPHERE PERSISTS OVER SOUTHEAST LOUISIANA... SOUTHWEST AND COASTAL MISSISSIPPI. SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE AREA THIS AFTERNOON AS TEMPERATURES CLIMB INTO THE UPPER 80S/LOWER 90S. THE HIGH MOISTURE CONTENT OF THE AIRMASS OVER THE REGION WILL LIKLEY RESULT IN LOCALLY HEAVY RAINFALL AND THE POSSIBILITY OF STRONG GUSTY WINDS...HOWEVER THERE IS LITTLE TO NO RISK OF SEVERE THUNDERSTORMS. SHOWER AND THUNDERSTORM ACTIVITY WILL GRADUALLY DIMINISH THIS EVENING. FOR THE LATEST WEATHER INFORMATION PLEASE LISTEN TO TELEVISION.. RADIO..OR NOAA WEATHER RADIO OR VISIT THE NEW ORLEANS/BATON ROUGE AREA FORECAST OFFICE HOMEPAGE ON THE INTERNET. LAZ034>040-046>049-056>070-MSZ068>071-080>082-180500 THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1230 PM CDT SUN JUL 20 1997 SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE AREA THIS AFTERNOON AS TEMPERATURES CLIMB INTO THE LOWER 90S. SEVERE THUNDERSTORMS ARE NOT EXPECTED ALTHOUGH SOME GUSTY WINDS ARE POSSIBLE. THE ATMOSPHERE IS VERY MOIST RAISING THE POTENTIAL FOR HEAVY RAINFALL WITH INDIVIDUAL STORMS. THE THUNDERSTORM ACTIVITY SHOULD BEGIN TO ABATE THIS EVENING.
Special weather statement, Jul 22, 10:39 AM CDT, 5 hours 54 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-180500 THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1030 PM CDT TUE JUL 22 1997 A MOIST UNSTABLE ATMOSPHERE PERSISTS OVER SOUTHEAST LOUISIANA... SOUTHWEST AND COASTAL MISSISSIPPI. SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE AREA THIS AFTERNOON AS TEMPERATURES CLIMB INTO THE UPPER 80S/LOWER 90S. THE HIGH MOISTURE CONTENT OF THE AIRMASS OVER THE REGION WILL LIKLEY RESULT IN LOCALLY HEAVY RAINFALL AND THE POSSIBILITY OF STRONG GUSTY WINDS...HOWEVER THERE IS LITTLE TO NO RISK OF SEVERE THUNDERSTORMS. SHOWER AND THUNDERSTORM ACTIVITY WILL GRADUALLY DIMINISH THIS EVENING. FOR THE LATEST WEATHER INFORMATION PLEASE LISTEN TO TELEVISION.. RADIO..OR NOAA WEATHER RADIO OR VISIT THE NEW ORLEANS/BATON ROUGE AREA FORECAST OFFICE HOMEPAGE ON THE INTERNET.
Special weather statement, Jul 22, 10:41 AM CDT, 5 hours 52 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-180500 THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1030 AM CDT TUE JUL 22 1997 A MOIST UNSTABLE ATMOSPHERE PERSISTS OVER SOUTHEAST LOUISIANA... SOUTHWEST AND COASTAL MISSISSIPPI. SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE AREA THIS AFTERNOON AS TEMPERATURES CLIMB INTO THE UPPER 80S/LOWER 90S. THE HIGH MOISTURE CONTENT OF THE AIRMASS OVER THE REGION WILL LIKLEY RESULT IN LOCALLY HEAVY RAINFALL AND THE POSSIBILITY OF STRONG GUSTY WINDS...HOWEVER THERE IS LITTLE TO NO RISK OF SEVERE THUNDERSTORMS. SHOWER AND THUNDERSTORM ACTIVITY WILL GRADUALLY DIMINISH THIS EVENING. FOR THE LATEST WEATHER INFORMATION PLEASE LISTEN TO TELEVISION.. RADIO..OR NOAA WEATHER RADIO OR VISIT THE NEW ORLEANS/BATON ROUGE AREA FORECAST OFFICE HOMEPAGE ON THE INTERNET.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 2:56 PM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany | 49 min |
| Jul 22, 4:53 PM CDT | Severe Thunderstorm Warning | LIX | Tangipahoa | 52 min |
| Jul 22, 5:28 PM CDT | Severe Thunderstorm Warning | LIX | Saint Helena | 47 min |
| Jul 22, 5:44 PM CDT | Severe Thunderstorm Warning | LIX | Orleans | 61 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.