Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 111, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Apr 26, 1997, 2:04 AM CDT for Ascension Parish, East Baton Rouge Parish, Livingston Parish, Louisiana. It was in force for 41 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 26, 1997, 2:04 AM CDT (07:04 UTC)
- Expired
- Apr 26, 1997, 2:45 AM CDT
- In force
- 41 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
Counties Ascension Parish, LA, East Baton Rouge Parish, LA, Livingston Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 26, 2:15 AM CDT | Thunderstorm Wind | Baton Rouge, LA | |
| Apr 26, 2:40 AM CDT | Thunderstorm Wind | Donaldsonville, LA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 26, 12:15 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 7.1 hours before the alert went out and 117 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
- 1139 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 212 m²/s²
- 0-3 km storm-relative helicity
- 496 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 7.5
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 1:27 AM CDT | Severe Thunderstorm Warning | LIX | Iberville, West Baton Rouge | 33 min |
| Apr 26, 3:00 AM CDT | Severe Thunderstorm Warning | LIX | Livingston, Tangipahoa | 45 min |
| Apr 26, 3:40 AM CDT | Severe Thunderstorm Warning | LIX | Saint Tammany | 50 min |
| Apr 26, 3:56 AM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Saint Charles | 49 min |
| Apr 26, 3:56 AM CDT | Severe Thunderstorm Warning | LIX | Orleans, Plaquemines, Saint Bernard | 49 min |
| Apr 25, 10:55 PM CDT | Severe Thunderstorm Warning | LIX | Jackson | 65 min |
| Apr 26, 4:58 AM CDT | Severe Thunderstorm Warning | LIX | Hancock, Harrison | 47 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.