Alert archive / Louisiana / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 10

January 29, 200133 parishes in Louisiana; 20 counties in Mississippi

The Storm Prediction Center issued this severe thunderstorm watch at Jan 29, 2001, 8:00 AM CST for 33 parishes in Louisiana; 20 counties in Mississippi. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jan 29, 2001, 8:00 AM CST (14:00 UTC)
Expired
Jan 29, 2001, 2:00 PM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 53 counties

Acadia Parish, LA, Allen Parish, LA, Ascension Parish, LA, Assumption Parish, LA, Avoyelles Parish, LA, Caldwell Parish, LA, Cameron Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, East Baton Rouge Parish, LA, East Carroll Parish, LA, East Feliciana Parish, LA, Evangeline Parish, LA, Franklin Parish, LA, Iberia Parish, LA, Iberville Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, LaSalle Parish, LA, Livingston Parish, LA, Madison Parish, LA, Pointe Coupee Parish, LA, Rapides Parish, LA, Richland Parish, LA, Saint Helena Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Tensas Parish, LA, Vermilion Parish, LA, West Baton Rouge Parish, LA, West Carroll Parish, LA, West Feliciana Parish, LA, Adams County, MS, Amite County, MS, Claiborne County, MS, Copiah County, MS, Franklin County, MS, Hinds County, MS, Issaquena County, MS, Jefferson County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Madison County, MS, Pike County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Warren County, MS, Wilkinson County, MS, Yazoo County, MS

The radar

The Ft Polk radar (KPOE), 112 km from the middle of the area, began a volume at 14:00 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.

Warnings issued inside it

21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jan 29, 8:04 AM CSTSevere Thunderstorm WarningLCHAllen, Jefferson Davis56 min
Jan 29, 8:04 AM CSTSevere Thunderstorm WarningLCHRapides56 min
Jan 29, 9:18 AM CSTSevere Thunderstorm WarningJANMadison, Tensas27 min
Jan 29, 10:01 AM CSTSevere Thunderstorm WarningJANClaiborne, Warren29 min
Jan 29, 10:23 AM CSTSevere Thunderstorm WarningLCHIberia, Saint Martin52 min
Jan 29, 10:23 AM CSTSevere Thunderstorm WarningJANHinds37 min
Jan 29, 10:34 AM CSTSevere Thunderstorm WarningLIXEast Baton Rouge, Iberville, Pointe Coupee, West Baton Rouge26 min
Jan 29, 10:34 AM CSTSevere Thunderstorm WarningLIXEast Feliciana26 min
Jan 29, 10:49 AM CSTSevere Thunderstorm WarningJANMadison41 min
Jan 29, 10:57 AM CSTSevere Thunderstorm WarningJANHinds33 min
Jan 29, 11:02 AM CSTSevere Thunderstorm WarningLIXEast Baton Rouge, East Feliciana, Saint Helena, West Baton Rouge58 min
Jan 29, 11:02 AM CSTSevere Thunderstorm WarningLIXAscension, Assumption, Iberville58 min
Jan 29, 11:02 AM CSTSevere Thunderstorm WarningLIXLivingston58 min
Jan 29, 11:02 AM CSTSevere Thunderstorm WarningLIXPike58 min
Jan 29, 11:05 AM CSTSevere Thunderstorm WarningJANYazoo40 min
Jan 29, 11:11 AM CSTSevere Thunderstorm WarningJANRankin49 min
Jan 29, 11:25 AM CSTSevere Thunderstorm WarningJANMadison50 min
Jan 29, 11:33 AM CSTTornado WarningLIXLivingston27 min
Jan 29, 11:43 AM CSTTornado WarningLIXPike32 min
Jan 29, 11:56 AM CSTSevere Thunderstorm WarningJANJefferson Davis, Lawrence, Simpson64 min
Jan 29, 11:59 AM CSTSevere Thunderstorm WarningJANLeake, Scott46 min

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 2.0 hours before the alert went out and 154 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-pSkew-T log-p diagram, Lake Charles Mun, LA at 12:00Z on 2001-01-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 399 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 12:00Z on 2001-01-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 341 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
399 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
685 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
341 m²/s²
0-3 km storm-relative helicity
420 m²/s²
Significant tornado parameter
0.9
Supercell composite
9.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 29, 3:45 AM CSTSevere Thunderstorm WatchSPCBeauregard, Bienville, Bossier, Caddo, Calcasieu, Caldwell and 14 more5 hr
Jan 29, 11:30 AM CSTSevere Thunderstorm WatchSPCAscension, Assumption, Jefferson, Lafourche, Livingston, Orleans and 8 more5 hr
Jan 29, 3:00 PM CSTSevere Thunderstorm WatchSPCJackson4 hr

Nearby

Severe Thunderstorm Watches in Louisiana, 2001Severe Thunderstorm Watches in Mississippi, 2001Every severe thunderstorm watch in 2001

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.