Alert archive / Louisiana / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 82, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at May 30, 2010, 3:20 PM CDT for 4 parishes in Louisiana. It was in force for 40 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
- May 30, 2010, 3:20 PM CDT (20:20 UTC)
- Expired
- May 30, 2010, 4:00 PM CDT
- In force
- 40 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
Counties Ascension Parish, LA, East Baton Rouge Parish, LA, Iberville Parish, LA, Livingston Parish, LA
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.3 hours before the alert went out and 211 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
- 1595 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 859 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.5
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.
NWS New Orleans, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 29, 6:50 PM CDT, 20 hours 30 minutes earlier.
Area forecast discussion, May 29, 6:50 PM CDT, 20 hours 30 minutes before
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</html>The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 7:12 PM CDT | Special Marine Warning | LIX | 63 min | |
| May 29, 7:23 PM CDT | Special Marine Warning | LIX | 52 min | |
| May 29, 8:00 PM CDT | Special Marine Warning | LIX | 60 min | |
| May 29, 9:40 PM CDT | Special Marine Warning | LIX | 65 min | |
| May 30, 6:48 AM CDT | Special Marine Warning | LIX | 42 min | |
| May 30, 7:29 AM CDT | Special Marine Warning | LIX | 61 min | |
| May 30, 8:43 AM CDT | Special Marine Warning | LIX | 62 min | |
| May 30, 10:21 AM CDT | Special Marine Warning | LIX | 84 min | |
| May 30, 10:24 AM CDT | Special Marine Warning | LIX | 66 min | |
| May 30, 10:50 AM CDT | Special Marine Warning | LIX | 25 min | |
| May 30, 12:26 PM CDT | Special Marine Warning | LIX | 64 min | |
| May 30, 1:25 PM CDT | Areal Flood Advisory | LIX | Jefferson | 2 hr |
| May 30, 2:17 PM CDT | Areal Flood Advisory | LIX | Saint Charles | 118 min |
| May 30, 4:02 PM CDT | Severe Thunderstorm Warning | LIX | East Baton Rouge, Livingston | 43 min |
| May 30, 5:26 PM CDT | Areal Flood Advisory | LIX | West Feliciana | 2 hr |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2010Every severe thunderstorm warning in 2010
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.