Alert archive / Tennessee / Tornado Watches in 2014
Tornado Watch 59
The Storm Prediction Center issued this tornado watch at Apr 4, 2014, 2:52 AM CDT for 23 counties in Alabama; 10 counties in Mississippi; 36 counties in Tennessee. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 4, 2014, 2:52 AM CDT (07:52 UTC)
- Expired
- Apr 4, 2014, 7:54 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 69 counties
Blount County, AL, Colbert County, AL, Cullman County, AL, DeKalb County, AL, Fayette County, AL, Franklin County, AL, Greene County, AL, Hale County, AL, Jackson County, AL, Jefferson County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marion County, AL, Marshall County, AL, Morgan County, AL, Pickens County, AL, Sumter County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL, Clay County, MS, Kemper County, MS, Lauderdale County, MS, Lowndes County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Scott County, MS, Winston County, MS, Bedford County, TN, Cannon County, TN, Cheatham County, TN, Clay County, TN, Coffee County, TN, Cumberland County, TN, Davidson County, TN, DeKalb County, TN, Dickson County, TN, Fentress County, TN, Franklin County, TN, Giles County, TN, Grundy County, TN, Hickman County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, Moore County, TN, Overton County, TN, Perry County, TN, Pickett County, TN, Putnam County, TN, Rutherford County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, Wayne County, TN, White County, TN, Williamson County, TN, Wilson County, TN
The radar
The Columbus AFB radar (KGWX), 65 km from the middle of the area, began a volume at 07:53 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
18 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 3:50 AM CDT | Severe Thunderstorm Warning | JAN | Clay | 55 min |
| Apr 4, 4:02 AM CDT | Severe Thunderstorm Warning | JAN | Oktibbeha | 58 min |
| Apr 4, 4:10 AM CDT | Severe Thunderstorm Warning | OHX | Perry, Wayne | 50 min |
| Apr 4, 4:13 AM CDT | Severe Thunderstorm Warning | HUN | Colbert, Franklin, Lauderdale | 47 min |
| Apr 4, 4:17 AM CDT | Severe Thunderstorm Warning | BMX | Lamar, Marion | 58 min |
| Apr 4, 4:26 AM CDT | Severe Thunderstorm Warning | JAN | Lowndes | 49 min |
| Apr 4, 4:34 AM CDT | Severe Thunderstorm Warning | HUN | Franklin, Lawrence | 41 min |
| Apr 4, 4:44 AM CDT | Severe Thunderstorm Warning | OHX | Dickson, Hickman, Houston, Humphreys | 61 min |
| Apr 4, 4:53 AM CDT | Severe Thunderstorm Warning | BMX | Fayette, Walker, Winston | 67 min |
| Apr 4, 5:19 AM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Davidson, Dickson, Hickman, Williamson | 41 min |
| Apr 4, 5:33 AM CDT | Severe Thunderstorm Warning | OHX | Davidson, Rutherford, Smith, Sumner, Williamson, Wilson | 57 min |
| Apr 4, 5:47 AM CDT | Severe Thunderstorm Warning | OHX | Bedford, Marshall, Maury, Rutherford, Williamson | 43 min |
| Apr 4, 6:05 AM CDT | Severe Thunderstorm Warning | HUN | Cullman, Marshall | 25 min |
| Apr 4, 6:11 AM CDT | Tornado Warning | OHX | Cannon, DeKalb, Rutherford, Smith, Wilson | 34 min |
| Apr 4, 6:21 AM CDT | Severe Thunderstorm Warning | HUN | DeKalb, Jackson, Marshall | 24 min |
| Apr 4, 6:33 AM CDT | Severe Thunderstorm Warning | OHX | Bedford, Cannon, Coffee, DeKalb, Rutherford, Warren and 1 more | 42 min |
| Apr 4, 6:43 AM CDT | Severe Thunderstorm Warning | HUN | DeKalb, Jackson | 17 min |
| Apr 4, 7:35 AM CDT | Severe Thunderstorm Warning | OHX | Cumberland, Fentress | 55 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
Birmingham, AL (KBMX), launched 00:00Z, 7.9 hours before the alert went out and 177 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2046 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 243 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
662 WWUS20 KWNS 040754 SEL9 SPC WW 040754 ALZ000-MSZ000-TNZ000-041500- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 59 NWS STORM PREDICTION CENTER NORMAN OK 255 AM CDT FRI APR 4 2014 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF NORTHERN AND WESTERN ALABAMA EASTERN MISSISSIPPI MIDDLE TENNESSEE * EFFECTIVE THIS FRIDAY MORNING FROM 255 AM UNTIL 1000 AM CDT. * PRIMARY THREATS INCLUDE... SEVERAL TORNADOES POSSIBLE SEVERAL DAMAGING WIND GUSTS TO 70 MPH LIKELY SEVERAL LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE MILES EAST AND WEST OF A LINE FROM 75 MILES NORTH NORTHEAST OF MUSCLE SHOALS ALABAMA TO 80 MILES SOUTHWEST OF TUSCALOOSA ALABAMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9). PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 55...WW 56...WW 57...WW 58... DISCUSSION...BOW ECHO CONVECTIVE SYSTEM NOW IN NW MS EXPECTED TO CONTINUE GENERALLY ENE INTO PARTS OF AL AND MIDDLE TN LATER THIS MORNING. WHILE LOW-LVL BUOYANCY SOMEWHAT DIMINISHES WITH EWD EXTENT ACROSS WW...EXISTING ORGANIZATION OF CONVECTIVE SYSTEM AND STRENGTH/CHARACTER OF OBSERVED/FCST WIND FIELDS ON SE FRINGE OF POTENT MID MS VLY SHORTWAVE TROUGH SUGGEST A CONTINUED RISK FOR DMGG WIND AND POSSIBLY A COUPLE TORNADOES. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 25040. ...CORFIDI
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 2:29 AM CDT | Mesoscale Discussion | SPC | Colbert, Cullman, Fayette, Franklin, Lamar, Lauderdale and 9 more | 31 min |
| Apr 4, 5:28 AM CDT | Mesoscale Discussion | SPC | Bibb, Blount, Cullman, DeKalb, Etowah, Fayette and 16 more | 92 min |
| Apr 4, 7:00 AM CDT | Mesoscale Discussion | SPC | Calhoun, Cherokee, Chilton, Clay, Cleburne, Coosa and 4 more | 90 min |
| Apr 4, 10:12 AM CDT | Mesoscale Discussion | SPC | Sumter | 63 min |
| Apr 3, 10:45 PM CDT | Mesoscale Discussion | SPC | Benton, Bolivar, Calhoun, Carroll, Coahoma, DeSoto and 16 more | 60 min |
| Apr 4, 12:20 AM CDT | Mesoscale Discussion | SPC | Bolivar, Carroll, Claiborne, Coahoma, Copiah, DeSoto and 19 more | 55 min |
| Apr 4, 12:40 AM CDT | Tornado Watch | SPC | Alcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 37 more | 5 hr |
| Apr 4, 3:45 AM CDT | Mesoscale Discussion | SPC | Alcorn, Attala, Benton, Calhoun, Carroll, Chickasaw and 21 more | 60 min |
| Apr 4, 5:04 AM CDT | Mesoscale Discussion | SPC | Amite, Copiah, Covington, Forrest, Franklin, Jasper and 12 more | 116 min |
| Apr 4, 5:25 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Amite, Claiborne, Clarke, Copiah, Covington and 31 more | 7 hr |
| Apr 4, 7:22 AM CDT | Mesoscale Discussion | SPC | Amite, Clarke, Covington, Forrest, Franklin, Hancock and 14 more | 83 min |
| Apr 3, 8:16 PM CDT | Mesoscale Discussion | SPC | Crockett, Dyer, Gibson, Henry, Lake, Lauderdale and 3 more | 59 min |
| Apr 3, 8:30 PM CDT | Tornado Watch | SPC | Crockett, Dyer, Gibson, Henry, Lake, Lauderdale and 2 more | 7 hr |
| Apr 3, 11:40 PM CDT | Mesoscale Discussion | SPC | Crockett, Dyer, Gibson, Henry, Lake, Lauderdale and 2 more | 95 min |
| Apr 4, 1:39 AM CDT | Mesoscale Discussion | SPC | Cheatham, Davidson, Dickson, Houston, Humphreys, Macon and 6 more | 3 hr |
| Apr 4, 2:12 AM CDT | Mesoscale Discussion | SPC | Dyer, Gibson, Henry, Obion, Stewart, Weakley | 63 min |
| Apr 4, 4:42 AM CDT | Mesoscale Discussion | SPC | Campbell, Clay, Fentress, Jackson, Macon, Morgan and 7 more | 93 min |
| Apr 4, 4:58 AM CDT | Severe Thunderstorm Watch | SPC | Anderson, Bledsoe, Campbell, Claiborne, Hamilton, Hancock and 8 more | 5 hr |
| Apr 4, 7:41 AM CDT | Mesoscale Discussion | SPC | Anderson, Campbell, Claiborne, Meigs, Morgan, Rhea and 3 more | 49 min |
Nearby
Tornado Watches in Tennessee, 2014Tornado Watches in Alabama, 2014Tornado Watches in Mississippi, 2014Every tornado watch in 2014
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.