Alert archive / Alabama / Mesoscale Discussions in 2005

Mesoscale Discussion 359

March 23, 200533 counties in Alabama; 10 counties in Mississippi

The Storm Prediction Center issued this mesoscale discussion at Mar 23, 2005, 1:27 AM CST for 33 counties in Alabama; 10 counties in Mississippi. It was in force for 63 min.

The area

The outline as issued.

The facts

Issued
Mar 23, 2005, 1:27 AM CST (07:27 UTC)
Expired
Mar 23, 2005, 2:30 AM CST
In force
63 min
Issued by
the Storm Prediction Center
All 43 counties

Autauga County, AL, Bibb County, AL, Blount County, AL, Butler County, AL, Chilton County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Coosa County, AL, Cullman County, AL, Dallas County, AL, Escambia County, AL, Etowah County, AL, Fayette County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lamar County, AL, Lowndes County, AL, Marengo County, AL, Marion County, AL, Monroe County, AL, Perry County, AL, Pickens County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tuscaloosa County, AL, Walker County, AL, Washington County, AL, Wilcox County, AL, Winston County, AL, Clarke County, MS, Greene County, MS, Itawamba County, MS, Kemper County, MS, Lauderdale County, MS, Lowndes County, MS, Monroe County, MS, Noxubee County, MS, Perry County, MS, Wayne County, MS

The radar

The Birmingham radar (KBMX), 107 km from the middle of the area, began a volume at 07:28 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

Birmingham, AL (KBMX), launched 00:00Z, 7.5 hours before the alert went out and 106 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, Birmingham, AL at 00:00Z on 2005-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 341 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, Birmingham, AL at 00:00Z on 2005-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
341 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
836 m above ground
0-6 km bulk shear
86 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 22, 6:09 PM CSTMesoscale DiscussionSPCAutauga, Bibb, Butler, Chilton, Choctaw, Clarke and 22 more2 hr
Mar 22, 6:50 PM CSTTornado WatchSPCAutauga, Bibb, Blount, Butler, Chilton, Choctaw and 26 more7 hr
Mar 22, 7:47 PM CSTMesoscale DiscussionSPCColbert, Cullman, Franklin, Lauderdale, Lawrence, Marion and 1 more88 min
Mar 22, 9:36 PM CSTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Blount, Bullock, Butler and 49 more84 min
Mar 22, 10:11 PM CSTMesoscale DiscussionSPCDeKalb, Jackson, Lawrence, Limestone, Madison, Morgan2 hr
Mar 22, 11:30 PM CSTTornado WatchSPCBarbour, Bullock, Butler, Chambers, Coffee, Coosa and 13 more7 hr
Mar 22, 11:37 PM CSTMesoscale DiscussionSPCAutauga, Barbour, Bullock, Butler, Chambers, Coffee and 19 more83 min
Mar 23, 12:35 AM CSTTornado WatchSPCChambers, Lee, Randolph7 hr
Mar 23, 2:11 AM CSTMesoscale DiscussionSPCBarbour, Bullock, Chambers, Coffee, Coosa, Covington and 13 more2 hr

Nearby

Mesoscale Discussions in Alabama, 2005Mesoscale Discussions in Mississippi, 2005Every mesoscale discussion 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.