Alert archive / Louisiana / Tornado Watches in 2005

Tornado Watch 62

March 22, 200519 parishes in Louisiana; Wilkinson County, Mississippi

The Storm Prediction Center issued this tornado watch at Mar 22, 2005, 3:00 AM CST for 19 parishes in Louisiana; Wilkinson County, Mississippi. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Mar 22, 2005, 3:00 AM CST (09:00 UTC)
Expired
Mar 22, 2005, 8:00 AM CST
In force
5 hr
Issued by
the Storm Prediction Center

Counties Acadia Parish, LA, Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Calcasieu Parish, LA, Cameron Parish, LA, Evangeline Parish, LA, Iberville Parish, LA, Jefferson Davis Parish, LA, Lafayette Parish, LA, Pointe Coupee Parish, LA, Rapides Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, St. Mary Parish, LA, Vermilion Parish, LA, Vernon Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Wilkinson County, MS

The radar

The Lake Charles radar (KLCH), 51 km from the middle of the area, began a volume at 09:03 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

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

IssuedProductOfficeCountiesLasted
Mar 22, 4:40 AM CSTSevere Thunderstorm WarningLCHVernon35 min
Mar 22, 5:51 AM CSTSevere Thunderstorm WarningLIXAmite, Pike, Walthall, Wilkinson54 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 9.0 hours before the alert went out and 49 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 00:00Z on 2005-03-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1017 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 00:00Z on 2005-03-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 square meters per square second.1939587897Sfc1 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
1017 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
845 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
252 m²/s²
Significant tornado parameter
1.0
Supercell composite
5.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000
WWUS20 KWNS 220901
SEL2  
SPC WW 220901
LAZ000-MSZ000-CWZ000-221400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 62
NWS STORM PREDICTION CENTER NORMAN OK
300 AM CST TUE MAR 22 2005

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       SOUTH-CENTRAL AND SOUTHWESTERN LOUISIANA
       EXTREME SOUTHWESTERN MISSISSIPPI
       COASTAL WATERS

EFFECTIVE THIS TUESDAY MORNING FROM 300 AM UNTIL 800 AM CST.

TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE MILES
EAST AND WEST OF A LINE FROM 55 MILES EAST NORTHEAST OF FORT POLK
LOUISIANA TO 30 MILES WEST SOUTHWEST OF INTRACOASTAL CITY
LOUISIANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 59...WW 60...WW 61...

DISCUSSION...SEVERE TSTMS EXPECTED TO MOVE EWD FROM WW 60 INTO SWRN
LA...WITH POTENTIAL FOR ADDITIONAL DEVELOPMENT AFFECTING AREAS AS
FAR E AS BTR METRO.  TORNADO POTENTIAL MARGINAL ATTM...BUT SHOULD
INCREASE WITH TIME AND FROM W-E AS AIR MASS JUST ABOVE SFC
DESTABILIZES AMIDST CONTINUING WAA.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 27025.


...EDWARDS/EVANS

312,0910 293,0911 293,0935 312,0933

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 21, 8:29 PM CSTMesoscale DiscussionSPCBienville, Bossier, Caddo, Claiborne, De Soto, Lincoln and 4 more91 min
Mar 21, 9:20 PM CSTTornado WatchSPCBienville, Caldwell, Catahoula, Claiborne, Concordia, East Carroll and 15 more7 hr
Mar 21, 11:09 PM CSTMesoscale DiscussionSPCBossier, Caddo, De Soto96 min
Mar 21, 11:26 PM CSTMesoscale DiscussionSPCBienville, Caldwell, Catahoula, Claiborne, Concordia, Franklin and 14 more94 min
Mar 22, 12:50 AM CSTTornado WatchSPCDe Soto, Sabine5 hr
Mar 22, 1:45 AM CSTTornado WatchSPCBienville, Caldwell, Catahoula, Claiborne, Concordia, East Carroll and 14 more6 hr
Mar 22, 3:43 AM CSTMesoscale DiscussionSPCDe Soto, Sabine2 hr
Mar 22, 3:57 AM CSTMesoscale DiscussionSPCBienville, Caldwell, Catahoula, Claiborne, Concordia, East Carroll and 14 more2 hr
Mar 22, 5:59 AM CSTMesoscale DiscussionSPCAcadia, Allen, Avoyelles, Calcasieu, Cameron, East Baton Rouge and 14 more2 hr
Mar 22, 6:55 AM CSTTornado WatchSPCSaint Tammany, Washington6 hr
Mar 22, 9:44 AM CSTMesoscale DiscussionSPCGeorge, Greene, Hancock, Harrison, Jackson61 min
Mar 22, 11:55 AM CSTMesoscale DiscussionSPCBenton, Bolivar, Carroll, Coahoma, DeSoto, Grenada and 11 more95 min
Mar 22, 12:55 PM CSTSevere Thunderstorm WatchSPCAttala, Bolivar, Calhoun, Carroll, Choctaw, Coahoma and 20 more7 hr
Mar 22, 2:39 PM CSTMesoscale DiscussionSPCCoahoma, DeSoto, Lafayette, Marshall, Panola, Quitman and 2 more96 min
Mar 22, 3:43 PM CSTMesoscale DiscussionSPCAmite, Attala, Clarke, Covington, Forrest, Greene and 23 more2 hr
Mar 22, 4:27 PM CSTMesoscale DiscussionSPCAlcorn, Benton, Marshall, Tippah33 min
Mar 22, 4:50 PM CSTSevere Thunderstorm WatchSPCAlcorn, Benton, Itawamba, Lee, Pontotoc, Prentiss and 3 more5 hr

Nearby

Tornado Watches in Louisiana, 2005Tornado Watches in Mississippi, 2005Every tornado watch in 2005

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.