Alert archive / Mississippi / Tornado Watches in 2005

Tornado Watch 120

April 1, 20054 states

The Storm Prediction Center issued this tornado watch at Apr 1, 2005, 2:05 AM CST for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 1, 2005, 2:05 AM CST (08:05 UTC)
Expired
Apr 1, 2005, 7:00 AM CST
In force
5 hr
Issued by
the Storm Prediction Center
All 27 counties

Baldwin County, AL, Coffee County, AL, Conecuh County, AL, Covington County, AL, Escambia County, AL, Mobile County, AL, Washington County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Orleans Parish, LA, Saint Bernard Parish, LA, Saint Tammany Parish, LA, Washington Parish, LA, Forrest County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Lamar County, MS, Marion County, MS, Pearl River County, MS, Perry County, MS, Stone County, MS, Walthall County, MS

The radar

The Mobile radar (KMOB), 29 km from the middle of the area, began a volume at 08:08 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 1, 2:06 AM CSTSevere Thunderstorm WarningLIXPearl River39 min
Apr 1, 2:25 AM CSTFlash Flood WarningMOBEscambia, Okaloosa, Santa Rosa4 hr
Apr 1, 2:32 AM CSTFlash Flood WarningMOBBaldwin, Mobile4 hr
Apr 1, 2:44 AM CSTSevere Thunderstorm WarningLIXPearl River46 min
Apr 1, 3:00 AM CSTFlash Flood WarningJANCovington, Forrest, Jefferson Davis, Jones, Lamar, Marion6 hr
Apr 1, 3:08 AM CSTSevere Thunderstorm WarningMOBGeorge, Greene, Perry, Stone37 min
Apr 1, 3:10 AM CSTSevere Thunderstorm WarningLIXSaint Tammany101 min
Apr 1, 3:39 AM CSTSevere Thunderstorm WarningMOBMobile36 min
Apr 1, 4:08 AM CSTSevere Thunderstorm WarningMOBBaldwin67 min
Apr 1, 4:14 AM CSTSevere Thunderstorm WarningMOBBaldwin, Mobile31 min
Apr 1, 4:23 AM CSTSevere Thunderstorm WarningMOBMobile37 min
Apr 1, 4:45 AM CSTSevere Thunderstorm WarningMOBBaldwin, Escambia75 min
Apr 1, 5:19 AM CSTSevere Thunderstorm WarningMOBMobile41 min
Apr 1, 5:19 AM CSTSevere Thunderstorm WarningMOBMobile41 min
Apr 1, 5:29 AM CSTFlash Flood WarningMOBBaldwin, Mobile4 hr
Apr 1, 6:07 AM CSTSevere Thunderstorm WarningMOBBaldwin53 min
Apr 1, 6:30 AM CSTFlash Flood WarningMOBEscambia, Okaloosa, Santa Rosa3 hr
Apr 1, 6:30 AM CSTFlash Flood WarningMOBEscambia, Okaloosa, Santa Rosa30 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

Slidell Radar S, LA (KSIL), launched 00:00Z, 8.1 hours before the alert went out and 126 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, Slidell Radar S, LA at 00:00Z on 2005-04-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1854 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, Slidell Radar S, LA at 00:00Z on 2005-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 square meters per square second.193958Sfc1 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
1854 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
456 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
173 m²/s²
Significant tornado parameter
1.7
Supercell composite
7.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 1, 1:29 AM CSTMesoscale DiscussionSPCBaldwin, Clarke, Escambia, Mobile, Washington2 hr
Apr 1, 11:16 AM CSTMesoscale DiscussionSPCColbert, Franklin, Lauderdale, Limestone2 hr
Apr 1, 11:20 AM CSTMesoscale DiscussionSPCBibb, Blount, Chilton, Choctaw, Cullman, Dallas and 18 more115 min
Apr 1, 11:45 AM CSTSevere Thunderstorm WatchSPCAutauga, Bibb, Blount, Chilton, Colbert, Cullman and 26 more6 hr
Apr 1, 3:00 PM CSTMesoscale DiscussionSPCBibb, Blount, Chilton, Cullman, Dallas, Greene and 13 more90 min
Apr 1, 3:19 PM CSTMesoscale DiscussionSPCBaldwin, Choctaw, Clarke, Conecuh, Mobile, Monroe and 2 more116 min
Apr 1, 4:55 PM CSTMesoscale DiscussionSPCAutauga, Butler, Calhoun, Cherokee, Clay, Cleburne and 12 more65 min
Apr 1, 7:44 AM CSTMesoscale DiscussionSPCAlachua, Baker, Bay, Bradford, Calhoun, Columbia and 16 more2 hr
Apr 1, 10:30 AM CSTTornado WatchSPCAlachua, Baker, Bradford, Calhoun, Clay, Columbia and 17 more8 hr
Apr 1, 1:16 PM CSTMesoscale DiscussionSPCAlachua, Baker, Bradford, Clay, Columbia, Dixie and 10 more119 min
Apr 1, 5:23 PM CSTMesoscale DiscussionSPCAlachua, Baker, Bradford, Calhoun, Clay, Columbia and 17 more67 min
Mar 31, 6:49 PM CSTMesoscale DiscussionSPCAcadia, Allen, Beauregard, Bienville, Bossier, Caddo and 16 more56 min
Mar 31, 7:05 PM CSTSevere Thunderstorm WatchSPCBienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 17 more5 hr
Mar 31, 8:25 PM CSTMesoscale DiscussionSPCAcadia, Calcasieu, Cameron, Jefferson Davis, Vermilion65 min
Mar 31, 8:45 PM CSTSevere Thunderstorm WatchSPCAcadia, Allen, Beauregard, Calcasieu, Cameron, Evangeline and 4 more7 hr
Mar 31, 8:59 PM CSTMesoscale DiscussionSPCAscension, Catahoula, Concordia, East Baton Rouge, East Feliciana, Iberville and 8 more61 min
Mar 31, 9:27 PM CSTMesoscale DiscussionSPCBienville, Bossier, Caddo, Caldwell, Claiborne, De Soto and 15 more63 min
Mar 31, 10:53 PM CSTMesoscale DiscussionSPCAvoyelles, Bienville, Bossier, Caddo, Caldwell, Catahoula and 29 more67 min
Mar 31, 11:15 PM CSTTornado WatchSPCAvoyelles, Bienville, Caldwell, Catahoula, Claiborne, Concordia and 27 more8 hr
Apr 1, 12:25 AM CSTMesoscale DiscussionSPCAcadia, Allen, Beauregard, Calcasieu, Cameron, Jefferson Davis and 3 more95 min
Apr 1, 4:14 AM CSTMesoscale DiscussionSPCSaint Helena, Tangipahoa, Washington2 hr

Nearby

Tornado Watches in Mississippi, 2005Tornado Watches in Alabama, 2005Tornado Watches in Florida, 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.