Alert archive / Tennessee / Mesoscale Discussions in 2005

Mesoscale Discussion 1647

July 4, 20056 states

The Storm Prediction Center issued this mesoscale discussion at Jul 4, 2005, 5:41 PM CDT for 6 states. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued
Jul 4, 2005, 5:41 PM CDT (22:41 UTC)
Expired
Jul 4, 2005, 7:15 PM CDT
In force
94 min
Issued by
the Storm Prediction Center
All 96 counties

Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Independence County, AR, Jackson County, AR, Lawrence County, AR, Mississippi County, AR, Poinsett County, AR, Randolph County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Alexander County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Johnson County, IL, Massac County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Saline County, IL, Union County, IL, White County, IL, Williamson County, IL, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Ballard County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Fulton County, KY, Graves County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Trigg County, KY, Union County, KY, Webster County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Dunklin County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Perry County, MO, Ripley County, MO, Sainte Genevieve County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Houston County, TN, Humphreys County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Obion County, TN, Perry County, TN, Shelby County, TN, Stewart County, TN, Tipton County, TN, Weakley County, TN

The radar

The Paducah radar (KPAH), 100 km from the middle of the area, began a volume at 22:41 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

Little Rock, AR (KLZK), launched 12:00Z, 10.7 hours before the alert went out and 211 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 12:00Z on 2005-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1450 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 12:00Z on 2005-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -70 square meters per square second.1939Sfc1 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
1450 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
1054 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-70 m²/s²
0-3 km storm-relative helicity
-43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Jul 4, 12:01 AM CDTMesoscale DiscussionSPCBenton, Boone, Carroll, Conway, Crawford, Franklin and 10 more89 min
Jul 4, 1:40 AM CDTMesoscale DiscussionSPCBenton, Crawford, Franklin, Howard, Little River, Logan and 7 more35 min
Jul 4, 2:15 AM CDTSevere Thunderstorm WatchSPCBenton, Carroll, Crawford, Madison, Washington7 hr
Jul 4, 5:12 AM CDTMesoscale DiscussionSPCBenton, Boone, Carroll, Crawford, Franklin, Madison and 2 more63 min
Jul 4, 11:35 AM CDTMesoscale DiscussionSPCBradley, Calhoun, Clark, Cleveland, Columbia, Dallas and 11 more85 min
Jul 4, 12:21 PM CDTMesoscale DiscussionSPCClay, Cleburne, Craighead, Fulton, Greene, Independence and 8 more84 min
Jul 4, 12:50 PM CDTSevere Thunderstorm WatchSPCClay, Cleburne, Conway, Craighead, Cross, Fulton and 12 more6 hr
Jul 4, 3:22 PM CDTMesoscale DiscussionSPCClay, Cleburne, Conway, Craighead, Crittenden, Cross and 14 more83 min
Jul 4, 2:53 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 25 more97 min
Jul 4, 11:13 AM CDTMesoscale DiscussionSPCBond, Bureau, Calhoun, Cass, Champaign, Christian and 41 more92 min
Jul 4, 12:00 PM CDTSevere Thunderstorm WatchSPCBond, Champaign, Christian, Clark, Clay, Clinton and 41 more6 hr
Jul 4, 2:18 PM CDTMesoscale DiscussionSPCElkhart, LaGrange, Saint Joseph87 min
Jul 4, 2:50 PM CDTSevere Thunderstorm WatchSPCAdams, Allen, Cass, DeKalb, Elkhart, Fulton and 17 more4 hr
Jul 3, 7:20 PM CDTMesoscale DiscussionSPCBarry, Barton, Bates, Benton, Cedar, Christian and 19 more115 min
Jul 3, 7:45 PM CDTSevere Thunderstorm WatchSPCBarton, Bates, Camden, Cedar, Christian, Dade and 13 more7 hr
Jul 3, 8:56 PM CDTMesoscale DiscussionSPCAndrew, Atchison, Buchanan, Clay, Clinton, DeKalb and 5 more64 min
Jul 3, 9:48 PM CDTMesoscale DiscussionSPCBarry, Barton, Benton, Camden, Cedar, Christian and 30 more87 min
Jul 4, 1:21 PM CDTMesoscale DiscussionSPCBedford, Franklin, Giles, Lawrence, Lewis, Lincoln and 4 more84 min

Nearby

Mesoscale Discussions in Tennessee, 2005Mesoscale Discussions in Kentucky, 2005Mesoscale Discussions in Arkansas, 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.