Alert archive / Louisiana / Freeze Warnings in 2007
Freeze Warning 4, NWS Shreveport, LA
NWS Shreveport, LA issued this freeze warning at Nov 15, 2007, 4:27 PM CST for 7 parishes in Louisiana; Columbia County, Union County, Arkansas. It took effect at Nov 16, 2007, 12:00 AM CST. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 15, 2007, 4:27 PM CST (22:27 UTC)
- In effect from
- Nov 16, 2007, 12:00 AM CST
- Expired
- Nov 16, 2007, 8:00 AM CST
- In force
- 8 hr
- Issued by
- NWS Shreveport, LA
Counties Columbia County, AR, Union County, AR, Caldwell Parish, LA, Claiborne Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Ouachita Parish, LA, Union Parish, LA
The radar
The Shreveport radar (KSHV), 123 km from the middle of the area, began a volume at 22:33 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, 10.5 hours before the alert went out and 232 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
- 2512 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- -217 m²/s²
- 0-3 km storm-relative helicity
- -8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
Nearby
Freeze Warnings in Louisiana, 2007Freeze Warnings in Arkansas, 2007Every freeze warning in 2007
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.