Alert archive / Tennessee / Mesoscale Discussions in 2005

Mesoscale Discussion 445

March 30, 20058 counties in Alabama; 20 counties in Mississippi; 32 counties in Tennessee

The Storm Prediction Center issued this mesoscale discussion at Mar 30, 2005, 7:56 PM CST for 8 counties in Alabama; 20 counties in Mississippi; 32 counties in Tennessee. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued
Mar 30, 2005, 7:56 PM CST (01:56 UTC)
Expired
Mar 30, 2005, 9:30 PM CST
In force
94 min
Issued by
the Storm Prediction Center
All 60 counties

Colbert County, AL, Franklin County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Marion County, AL, Winston County, AL, Alcorn County, MS, Benton County, MS, Calhoun County, MS, Chickasaw County, MS, DeSoto County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Marshall County, MS, Monroe County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Yalobusha County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dickson County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Giles County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lauderdale County, TN, Lawrence County, TN, Lewis County, TN, Madison County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Obion County, TN, Perry County, TN, Shelby County, TN, Tipton County, TN, Wayne County, TN, Weakley County, TN, Williamson County, TN

The radar

The Memphis radar (KNQA), 116 km from the middle of the area, began a volume at 01:57 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 1.9 hours before the alert went out and 123 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, Little Rock, AR at 00:00Z on 2005-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 81 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, Little Rock, AR at 00:00Z on 2005-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.1939587897117136Sfc1 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
81 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
2152 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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 30, 8:55 PM CSTMesoscale DiscussionSPCAutauga, Baldwin, Bibb, Butler, Chilton, Conecuh and 11 more95 min
Mar 30, 9:15 PM CSTSevere Thunderstorm WatchSPCAutauga, Bibb, Butler, Calhoun, Chilton, Clarke and 22 more7 hr
Mar 30, 9:50 PM CSTSevere Thunderstorm WatchSPCBlount, Colbert, Cullman, Fayette, Franklin, Jackson and 10 more6 hr
Mar 30, 10:11 PM CSTMesoscale DiscussionSPCChoctaw, Greene, Pickens, Sumter94 min
Mar 31, 12:53 AM CSTMesoscale DiscussionSPCAutauga, Bibb, Bullock, Butler, Chambers, Chilton and 21 more97 min
Mar 31, 1:15 AM CSTSevere Thunderstorm WatchSPCAutauga, Barbour, Bibb, Blount, Bullock, Butler and 46 more7 hr
Mar 31, 2:08 AM CSTMesoscale DiscussionSPCColbert, DeKalb, Franklin, Jackson, Lauderdale, Lawrence and 4 more97 min
Mar 31, 5:34 AM CSTMesoscale DiscussionSPCAutauga, Bibb, Bullock, Butler, Calhoun, Chambers and 34 more116 min
Mar 31, 6:53 AM CSTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Bullock, Butler, Calhoun and 35 more67 min
Mar 31, 7:30 AM CSTSevere Thunderstorm WatchSPCBarbour, Bullock, Butler, Coffee, Conecuh, Covington and 12 more8 hr
Mar 31, 10:32 AM CSTMesoscale DiscussionSPCBarbour, Bullock, Butler, Coffee, Conecuh, Covington and 7 more88 min
Mar 31, 2:15 PM CSTMesoscale DiscussionSPCBaldwin, Geneva, Houston2 hr
Mar 31, 11:40 AM CSTMesoscale DiscussionSPCAmite, Hancock, Harrison, Pearl River, Pike, Stone and 2 more2 hr
Mar 31, 12:15 PM CSTSevere Thunderstorm WatchSPCAmite, George, Hancock, Harrison, Jackson, Pearl River and 4 more6 hr
Mar 31, 3:27 PM CSTMesoscale DiscussionSPCAmite, George, Hancock, Harrison, Jackson, Pearl River and 4 more93 min
Mar 31, 5:28 PM CSTMesoscale DiscussionSPCAdams, Amite, Forrest, Franklin, George, Greene and 13 more62 min
Mar 31, 5:50 PM CSTSevere Thunderstorm WatchSPCAdams, Amite, Covington, Forrest, Franklin, George and 18 more6 hr
Mar 30, 11:44 PM CSTMesoscale DiscussionSPCBradley, Hamilton, McMinn, Meigs, Polk, Rhea91 min

Nearby

Mesoscale Discussions in Tennessee, 2005Mesoscale Discussions in Mississippi, 2005Mesoscale Discussions in Alabama, 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.