Alert archive / Louisiana / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 14, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Feb 14, 2009, 10:06 PM CST for Cameron Parish, Louisiana; Jefferson County, Texas. It was in force for 39 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
- Feb 14, 2009, 10:06 PM CST (04:06 UTC)
- Expired
- Feb 14, 2009, 10:45 PM CST
- In force
- 39 min
- Issued by
- NWS Lake Charles, LA
- Area
- Storm-based polygon
Counties Cameron Parish, LA, Jefferson County, TX
The radar
The Lake Charles radar (KLCH), 54 km from the middle of the area, began a volume at 04:08 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 4.1 hours before the alert went out and 385 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
- 36 J/kg
- Mixed-layer CIN
- -209 J/kg
- Mixed-layer LCL
- 693 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Lake Charles, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 14, 3:01 PM CST, 7 hours 5 minutes earlier.
Area forecast discussion, Feb 14, 3:01 PM CST, 7 hours 5 minutes before
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</html>Hazardous weather outlook, Feb 14, 6:13 AM CST, 15 hours 53 minutes before
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</html>The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 14, 10:18 PM CST | Special Marine Warning | LCH | 42 min | |
| Feb 14, 10:47 PM CST | Severe Thunderstorm Warning | LCH | Cameron, Vermilion | 58 min |
| Feb 14, 11:25 PM CST | Severe Thunderstorm Warning | LCH | Cameron | 35 min |
| Feb 14, 11:28 PM CST | Special Marine Warning | LCH | 32 min | |
| Feb 14, 11:49 PM CST | Special Marine Warning | LCH | 26 min | |
| Feb 15, 12:00 AM CST | Special Marine Warning | LCH | 45 min | |
| Feb 15, 12:50 AM CST | Special Marine Warning | LCH | 55 min | |
| Feb 15, 2:20 AM CST | Special Marine Warning | LCH | 55 min | |
| Feb 15, 3:38 PM CST | Small Craft Advisory | LCH | 23 hr | |
| Feb 14, 11:09 PM CST | Severe Thunderstorm Warning | LCH | Jefferson, Orange | 51 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2009Severe Thunderstorm Warnings in Texas, 2009Every severe thunderstorm warning in 2009
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; radar from the NEXRAD Level II archive.