Alert archive / Tennessee / Tornado Watches in 2014
Tornado Watch 271
The Storm Prediction Center issued this tornado watch at Jun 9, 2014, 5:30 PM CDT for 12 counties in Alabama; 15 counties in Mississippi; 37 counties in Tennessee. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 9, 2014, 5:30 PM CDT (22:30 UTC)
- Expired
- Jun 10, 2014, 1:00 AM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 64 counties
Colbert County, AL, Cullman County, AL, Fayette County, AL, Franklin County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Marion County, AL, Morgan County, AL, Walker County, AL, Winston County, AL, Alcorn County, MS, Benton County, MS, Calhoun County, MS, Chickasaw County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Marshall County, MS, Monroe County, MS, Pontotoc County, MS, Prentiss County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Yalobusha County, MS, Benton County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Crockett County, TN, Davidson 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, Lake County, TN, Lauderdale County, TN, Lawrence County, TN, Lewis County, TN, Madison County, TN, Marshall County, TN, Maury County, TN, McNairy County, TN, Montgomery County, TN, Obion County, TN, Perry County, TN, Robertson County, TN, Stewart County, TN, Tipton County, TN, Wayne County, TN, Weakley County, TN, Williamson County, TN
The radar
The Memphis radar (KNQA), 134 km from the middle of the area, began a volume at 22:31 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
- 20%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
31 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 5:46 PM CDT | Severe Thunderstorm Warning | MEG | Calhoun, Chickasaw | 44 min |
| Jun 9, 5:57 PM CDT | Severe Thunderstorm Warning | MEG | Benton, Lafayette, Marshall, Tippah, Union | 48 min |
| Jun 9, 6:30 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw, Lee, Monroe, Pontotoc, Tippah, Union | 45 min |
| Jun 9, 6:53 PM CDT | Flash Flood Warning | MEG | Benton, Tippah | 3 hr |
| Jun 9, 7:02 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw, Itawamba, Lee, Monroe, Prentiss, Tishomingo | 43 min |
| Jun 9, 7:13 PM CDT | Flash Flood Warning | MEG | Madison | 3 hr |
| Jun 9, 7:16 PM CDT | Flash Flood Warning | MEG | Alcorn | 3 hr |
| Jun 9, 7:18 PM CDT | Flash Flood Warning | MEG | Decatur | 3 hr |
| Jun 9, 7:19 PM CDT | Severe Thunderstorm Warning | BMX | Lamar | 56 min |
| Jun 9, 7:30 PM CDT | Flash Flood Warning | MEG | Chester, Hardeman, McNairy | 3 hr |
| Jun 9, 7:34 PM CDT | Severe Thunderstorm Warning | BMX | Marion | 56 min |
| Jun 9, 7:43 PM CDT | Severe Thunderstorm Warning | BMX | Fayette | 62 min |
| Jun 9, 7:45 PM CDT | Flash Flood Warning | MEG | Henderson | 3 hr |
| Jun 9, 7:54 PM CDT | Severe Thunderstorm Warning | HUN | Colbert, Lauderdale | 36 min |
| Jun 9, 7:58 PM CDT | Severe Thunderstorm Warning | HUN | Colbert, Franklin | 32 min |
| Jun 9, 8:02 PM CDT | Severe Thunderstorm Warning | HUN | Franklin | 28 min |
| Jun 9, 8:05 PM CDT | Severe Thunderstorm Warning | BMX | Winston | 55 min |
| Jun 9, 8:06 PM CDT | Severe Thunderstorm Warning | OHX | Wayne | 39 min |
| Jun 9, 8:19 PM CDT | Severe Thunderstorm Warning | HUN | Colbert, Franklin, Lauderdale, Lawrence | 26 min |
| Jun 9, 8:29 PM CDT | Severe Thunderstorm Warning | BMX | Walker | 61 min |
| Jun 9, 8:31 PM CDT | Severe Thunderstorm Warning | OHX | Lawrence, Lewis, Perry, Wayne | 44 min |
| Jun 9, 8:45 PM CDT | Severe Thunderstorm Warning | HUN | Colbert, Cullman, Lauderdale, Lawrence, Limestone, Morgan | 30 min |
| Jun 9, 8:58 PM CDT | Severe Thunderstorm Warning | OHX | Giles, Hickman, Lawrence, Lewis, Maury, Perry and 1 more | 32 min |
| Jun 9, 9:14 PM CDT | Severe Thunderstorm Warning | HUN | Cullman, Limestone, Madison, Marshall, Morgan | 31 min |
| Jun 9, 9:21 PM CDT | Severe Thunderstorm Warning | OHX | Bedford, Giles, Hickman, Marshall, Maury, Williamson | 39 min |
| Jun 9, 9:31 PM CDT | Severe Thunderstorm Warning | BMX | Blount, Walker | 45 min |
| Jun 9, 9:45 PM CDT | Severe Thunderstorm Warning | HUN | Jackson, Madison, Marshall, Morgan | 30 min |
| Jun 9, 9:47 PM CDT | Severe Thunderstorm Warning | HUN | Cullman | 28 min |
| Jun 9, 9:48 PM CDT | Severe Thunderstorm Warning | OHX | Bedford, Coffee, Hickman, Marshall, Maury, Rutherford and 1 more | 27 min |
| Jun 9, 10:03 PM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Davidson, Dickson, Robertson, Williamson | 42 min |
| Jun 9, 10:14 PM CDT | Severe Thunderstorm Warning | OHX | Bedford, Cannon, Coffee, Davidson, Grundy, Rutherford and 3 more | 31 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
Little Rock, AR (KBYH), launched 12:00Z, 10.5 hours before the alert went out and 158 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
- 40 J/kg
- Mixed-layer CIN
- -187 J/kg
- Mixed-layer LCL
- 453 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 162 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
063 WWUS20 KWNS 092237 SEL1 SPC WW 092237 ALZ000-MSZ000-TNZ000-100600- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 271 NWS STORM PREDICTION CENTER NORMAN OK 535 PM CDT MON JUN 9 2014 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF NORTHWEST ALABAMA NORTHERN MISSISSIPPI WESTERN AND MIDDLE TENNESSEE * EFFECTIVE THIS MONDAY AFTERNOON AND TUESDAY MORNING FROM 535 PM UNTIL 100 AM CDT. * PRIMARY THREATS INCLUDE... A COUPLE TORNADOES POSSIBLE SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE MILES EAST AND WEST OF A LINE FROM 80 MILES WEST NORTHWEST OF NASHVILLE TENNESSEE TO 45 MILES SOUTHEAST OF TUPELO MISSISSIPPI. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1). 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...THIS TORNADO WATCH REPLACES TORNADO WATCH NUMBER 268. WATCH NUMBER 268 WILL NOT BE IN EFFECT AFTER 535 PM CDT. CONTINUE...WW 267...WW 269...WW 270... DISCUSSION...NRN END OF N-S LWR MS VLY SQLN EXPECTED TO CONTINUE ENEWD THROUGH LATE EVE...IN TANDEM WITH BAND OF 30-40 KT LOW TO MID-TROPOSPHERIC SW FLOW IN SE QUADRANT OF KS-OK UPR LOW. THIS BAND OF ENHANCED FLOW...COUPLED WITH HIGH PW AND SLIGHTLY-BACKED NEAR-SFC WINDS INVOF DIFFUSE WARM FRONT/SFC TROUGH OVER NRN MS/WRN TN...SUGGESTS SOME RISK FOR TORNADOES...BOTH WITH STORMS IN THE SQLN AND THOSE FORMING AHEAD OF IT. LOCALLY DMGG WIND ALSO MAY OCCUR WITH EMBEDDED LEWPS/SMALL BOWS IN THE LINE. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 22030. ...CORFIDI
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 7:09 PM CDT | Mesoscale Discussion | SPC | Autauga, Barbour, Bibb, Bullock, Butler, Chilton and 32 more | 2 hr |
| Jun 9, 2:07 AM CDT | Mesoscale Discussion | SPC | Colbert, Fayette, Franklin, Lamar, Marion, Pickens | 83 min |
| Jun 9, 4:54 PM CDT | Mesoscale Discussion | SPC | Colbert, Cullman, Fayette, Franklin, Greene, Lamar and 11 more | 96 min |
| Jun 9, 5:16 PM CDT | Severe Thunderstorm Watch | SPC | Autauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 20 more | 8 hr |
| Jun 9, 5:19 PM CDT | Mesoscale Discussion | SPC | Colbert, Franklin, Lauderdale, Lawrence, Marion | 26 min |
| Jun 9, 6:55 PM CDT | Mesoscale Discussion | SPC | Colbert, Fayette, Franklin, Lamar, Lauderdale, Lawrence and 5 more | 95 min |
| Jun 8, 7:47 PM CDT | Mesoscale Discussion | SPC | Adams, Attala, Bolivar, Calhoun, Carroll, Chickasaw and 33 more | 88 min |
| Jun 8, 8:41 PM CDT | Severe Thunderstorm Watch | SPC | Alcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 46 more | 7 hr |
| Jun 8, 10:53 PM CDT | Mesoscale Discussion | SPC | Alcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 42 more | 97 min |
| Jun 9, 9:39 AM CDT | Mesoscale Discussion | SPC | Bolivar, Humphreys, Issaquena, Sharkey, Sunflower, Washington and 1 more | 2 hr |
| Jun 9, 11:40 AM CDT | Severe Thunderstorm Watch | SPC | Attala, Bolivar, Carroll, Claiborne, Coahoma, Grenada and 18 more | 7 hr |
| Jun 9, 1:54 PM CDT | Mesoscale Discussion | SPC | Alcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 25 more | 96 min |
| Jun 9, 2:14 PM CDT | Tornado Watch | SPC | Alcorn, Benton, Coahoma, DeSoto, Lafayette, Marshall and 7 more | 5 hr |
| Jun 9, 3:22 PM CDT | Mesoscale Discussion | SPC | Adams, Attala, Bolivar, Carroll, Choctaw, Claiborne and 15 more | 83 min |
| Jun 9, 3:43 PM CDT | Mesoscale Discussion | SPC | Benton, DeSoto, Lafayette, Marshall, Panola, Quitman and 4 more | 92 min |
Nearby
Tornado Watches in Tennessee, 2014Tornado Watches in Mississippi, 2014Tornado Watches in Alabama, 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.