Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 179, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Jun 23, 1997, 4:09 PM CDT for Saint Tammany Parish, Tangipahoa Parish, Louisiana. It was in force for 36 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
- Jun 23, 1997, 4:09 PM CDT (21:09 UTC)
- Expired
- Jun 23, 1997, 4:45 PM CDT
- In force
- 36 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 9.2 hours before the alert went out and 55 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
- 652 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 1134 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 70 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, Jun 23, 10:39 AM CDT, 5 hours 30 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-241600- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1045 AM CDT MON JUN 23 1997 ...ONLY WIDELY SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER SOUTHEAST LOUISIANA THIS AFTERNOON... HIGH PRESSURE HAS BUILT OVER THE AREA AND IS EXPECTED TO MOVE WEST THROUGH TUESDAY. ALTHOUGH THE AIRMASS IS RELATIVEY UNSTABLE... DEVELOPMENT OF SEVERE THUNDERSTORMS IS UNLIKELY. MOISTURE IS LIMITED AND THERE DOES NOT EXIST ANY MECHANISM TO PRODUCE MORE THAN ISOLATED TO WIDELY SCATTERED THUNDERSTORMS DURING THE MAXIMUM HEATING PERIOD OF THE AFTERNOON.
Special weather statement, Jun 23, 10:45 AM CDT, 5 hours 24 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-241600- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1045 AM CDT MON JUN 23 1997 ...ONLY WIDELY SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER SOUTHEAST LOUISIANA THIS AFTERNOON... HIGH PRESSURE HAS BUILT OVER THE AREA AND IS EXPECTED TO MOVE WEST THROUGH TUESDAY. ALTHOUGH THE AIRMASS IS RELATIVEY UNSTABLE... DEVELOPMENT OF SEVERE THUNDERSTORMS IS UNLIKELY. MOISTURE IS LIMITED AND THERE DOES NOT EXIST ANY MECHANISM TO PRODUCE MORE THAN ISOLATED TO WIDELY SCATTERED THUNDERSTORMS DURING THE MAXIMUM HEATING PERIOD OF THE AFTERNOON.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 12:08 PM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany | 67 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.