Alert archive / Louisiana / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 75, NWS Lake Charles, LA

June 9, 2013Allen Parish, Rapides Parish, Vernon Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jun 9, 2013, 3:53 PM CDT for Allen Parish, Rapides Parish, Vernon Parish, Louisiana. It was in force for 37 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 9, 2013, 3:53 PM CDT (20:53 UTC)
Expired: Jun 9, 2013, 4:30 PM CDT
In force: 37 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon

Counties Allen Parish, LA, Rapides Parish, LA, Vernon Parish, LA

The radar

The Ft Polk radar (KPOE), 22 km from the middle of the area, began a volume at 20:57 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

Jackson, MS (KJAN), launched 12:00Z, 8.9 hours before the alert went out and 301 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1423 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 593 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jun 8, 6:40 PM CDT, 21 hours 13 minutes earlier.

Area forecast discussion, Jun 8, 6:40 PM CDT, 21 hours 13 minutes before

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The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 9, 1:58 AM CDT	Special Weather Statement	LCH	Saint Martin	62 min
Jun 9, 3:00 AM CDT	Special Weather Statement	LCH	Saint Martin	60 min
Jun 9, 4:37 AM CDT	Areal Flood Advisory	LCH	Iberia, Saint Martin, St. Mary	113 min
Jun 9, 6:36 AM CDT	Areal Flood Advisory	LCH	Iberia, Saint Martin, St. Mary	3 hr
Jun 9, 2:20 PM CDT	Special Weather Statement	LCH	Beauregard	40 min
Jun 9, 3:23 PM CDT	Special Weather Statement	LCH	Vernon	52 min
Jun 9, 4:17 PM CDT	Special Weather Statement	LCH	Avoyelles, Rapides	58 min
Jun 9, 4:20 PM CDT	Special Weather Statement	LCH	Acadia	55 min
Jun 9, 4:54 PM CDT	Special Weather Statement	LCH	Evangeline	66 min
Jun 9, 1:17 PM CDT	Special Weather Statement	LCH	Jasper	58 min
Jun 9, 1:46 PM CDT	Special Weather Statement	LCH	Newton	29 min
Jun 9, 1:59 PM CDT	Special Weather Statement	LCH	Newton	46 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2013 Every severe thunderstorm warning in 2013

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.