Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 242, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Jul 23, 1997, 1:55 PM CDT for Saint Tammany Parish, Louisiana; Hancock County, Mississippi. It was in force for 65 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, 1997, 1:55 PM CDT (18:55 UTC)
- Expired
- Jul 23, 1997, 3:00 PM CDT
- In force
- 65 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Saint Tammany Parish, LA, Hancock County, MS
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 6.9 hours before the alert went out and 17 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
- 2879 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 668 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- -13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 23, 11:55 AM CDT, 2 hours before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-230300 THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1155 AM CDT TUE JUL 23 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 WITH A MODERATE RISK OF STRONG GUSTY WINDS...GENERAL THUNDERSTORMS ARE EXPECTED OVER THE AREA DURING THE AFTERNOON BUT WITH LITTLE OR 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 23, 11:57 AM CDT, 1 hour 58 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-230300 THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1155 AM CDT TUE JUL 23 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 WITH A MODERATE RISK OF STRONG GUSTY WINDS...GENERAL THUNDERSTORMS ARE EXPECTED OVER THE AREA DURING THE AFTERNOON BUT WITH LITTLE OR 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 23, 3:13 PM CDT | Severe Thunderstorm Warning | LIX | Harrison | 62 min |
| Jul 23, 4:12 PM CDT | Flash Flood Warning | LIX | Pearl River | 2 hr |
Nearby
Severe Thunderstorm Warnings in Louisiana, 1997Severe Thunderstorm Warnings in Mississippi, 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.