Alert archive / Alabama / Tornado Watches in 2014
Tornado Watch 66
The Storm Prediction Center issued this tornado watch at Apr 7, 2014, 1:16 AM CDT for 43 counties in Alabama; 18 parishes in Louisiana; 27 counties in Mississippi. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 7, 2014, 1:16 AM CDT (06:16 UTC)
- Expired
- Apr 7, 2014, 7:51 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 88 counties
Autauga County, AL, Baldwin County, AL, Barbour County, AL, Bibb County, AL, Bullock County, AL, Butler County, AL, Calhoun County, AL, Chambers County, AL, Chilton County, AL, Choctaw County, AL, Clarke County, AL, Clay County, AL, Cleburne County, AL, Conecuh County, AL, Coosa County, AL, Covington County, AL, Crenshaw County, AL, Dallas County, AL, Elmore County, AL, Escambia County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Mobile County, AL, Monroe County, AL, Montgomery County, AL, Perry County, AL, Pickens County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Washington County, AL, Wilcox County, AL, Ascension Parish, LA, Assumption Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Jefferson Parish, LA, Lafourche Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Terrebonne Parish, LA, Washington Parish, LA, Amite County, MS, Clarke County, MS, Covington County, MS, Forrest County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Jasper County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Lincoln County, MS, Marion County, MS, Newton County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Simpson County, MS, Smith County, MS, Stone County, MS, Walthall County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 142 km from the middle of the area, began a volume at 06:15 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
- 70%
- One or more EF2 to EF5 tornadoes
- 30%
- Ten or more severe wind reports
- 40%
- 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
29 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 1:32 AM CDT | Tornado Warning | JAN | Kemper, Lauderdale | 58 min |
| Apr 7, 1:47 AM CDT | Tornado Warning | JAN | Covington, Jefferson Davis, Simpson, Smith | 43 min |
| Apr 7, 2:03 AM CDT | Flash Flood Warning | JAN | Kemper, Lauderdale | 117 min |
| Apr 7, 2:07 AM CDT | Flash Flood Warning | JAN | Newton | 113 min |
| Apr 7, 2:20 AM CDT | Tornado Warning | JAN | Clarke, Jasper, Jones, Smith | 55 min |
| Apr 7, 3:01 AM CDT | Tornado Warning | BMX | Bibb, Perry | 29 min |
| Apr 7, 3:13 AM CDT | Tornado Warning | BMX | Dallas | 32 min |
| Apr 7, 3:13 AM CDT | Flash Flood Warning | JAN | Clarke, Jasper | 5 hr |
| Apr 7, 3:22 AM CDT | Tornado Warning | MOB | Clarke, Washington | 38 min |
| Apr 7, 3:25 AM CDT | Flash Flood Warning | BMX | Clay, Cleburne, Randolph | 6 hr |
| Apr 7, 3:29 AM CDT | Flash Flood Warning | JAN | Kemper, Lauderdale | 3 hr |
| Apr 7, 3:45 AM CDT | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis, Lawrence | 45 min |
| Apr 7, 3:50 AM CDT | Flash Flood Warning | MOB | Choctaw, Clarke, Conecuh, Monroe, Washington, Wilcox | 4 hr |
| Apr 7, 3:50 AM CDT | Tornado Warning | MOB | Monroe, Wilcox | 40 min |
| Apr 7, 4:29 AM CDT | Flash Flood Warning | BMX | Bibb, Jefferson, Shelby | 3 hr |
| Apr 7, 4:41 AM CDT | Tornado Warning | MOB | Baldwin, Clarke, Mobile, Monroe | 49 min |
| Apr 7, 4:58 AM CDT | Severe Thunderstorm Warning | MOB | Butler | 62 min |
| Apr 7, 5:07 AM CDT | Severe Thunderstorm Warning | BMX | Lowndes | 38 min |
| Apr 7, 5:23 AM CDT | Severe Thunderstorm Warning | MOB | Mobile | 52 min |
| Apr 7, 5:30 AM CDT | Severe Thunderstorm Warning | BMX | Montgomery | 45 min |
| Apr 7, 6:08 AM CDT | Flash Flood Warning | MOB | Baldwin, Clarke, Mobile, Washington | 112 min |
| Apr 7, 6:10 AM CDT | Tornado Warning | MOB | Butler, Conecuh, Monroe | 50 min |
| Apr 7, 6:16 AM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Conecuh, Escambia, Monroe | 44 min |
| Apr 7, 6:29 AM CDT | Flash Flood Warning | JAN | Lauderdale | 2 hr |
| Apr 7, 6:30 AM CDT | Flash Flood Warning | MOB | Baldwin, Clarke, Conecuh, Escambia, Monroe | 2 hr |
| Apr 7, 6:43 AM CDT | Severe Thunderstorm Warning | MOB | Butler, Conecuh, Covington, Crenshaw, Escambia, Monroe | 47 min |
| Apr 7, 6:49 AM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Escambia | 56 min |
| Apr 7, 7:36 AM CDT | Severe Thunderstorm Warning | BMX | Pike | 39 min |
| Apr 7, 7:41 AM CDT | Flash Flood Warning | BMX | Bullock, Chambers, Lee, Macon, Montgomery | 3 hr |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 6.3 hours before the alert went out and 185 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
- 50 J/kg
- Mixed-layer CIN
- -316 J/kg
- Mixed-layer LCL
- 458 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 686 m²/s²
- 0-3 km storm-relative helicity
- 870 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.8
The text
As transmitted, in the capitals the NWS used until 2016.
754 WWUS20 KWNS 070625 SEL6 SPC WW 070625 ALZ000-FLZ000-LAZ000-MSZ000-CWZ000-071300- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 66 NWS STORM PREDICTION CENTER NORMAN OK 115 AM CDT MON APR 7 2014 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF SOUTHERN AND CENTRAL ALABAMA WESTERN FLORIDA PANHANDLE SOUTHEASTERN LOUISIANA SOUTHERN AND EASTERN MISSISSIPPI COASTAL WATERS * EFFECTIVE THIS MONDAY MORNING FROM 115 AM UNTIL 800 AM CDT. * PRIMARY THREATS INCLUDE... SEVERAL TORNADOES LIKELY WITH A FEW INTENSE TORNADOES POSSIBLE SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE A FEW LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 95 STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES EAST OF BIRMINGHAM ALABAMA TO 45 MILES SOUTHEAST OF NEW ORLEANS LOUISIANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6). 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 65. WATCH NUMBER 65 WILL NOT BE IN EFFECT AFTER 115 AM CDT. DISCUSSION...SEGMENTED SQLN/QLCS NOW EXTENDING FROM A CNTRL LA NEWD TO W CNTRL AL EXPECTED TO ADVANCE SLOWLY EWD THROUGH SUNRISE...WHILE EMBEDDED SUPERCELLS/SUSTAINED STORMS MOVE MORE RAPIDLY NEWD WITHIN THE LINE. SFC PRESSURE FALLS CENTERED OVER MIDDLE TN SUGGEST THAT PRECIP-ENHANCED BOUNDARY NOW OVER CNTRL AL MAY EDGE A BIT NWD OVER THE NEXT FEW HOURS...ALLOWING SVR THREAT ASSOCIATED WITH NRN PART OF SQLN TO SPREAD NE TOWARD THE TCL/BHM AREAS. AT THE SAME TIME...CONFLUENT LWR-LVL FLOW AHEAD OF SQLN MAY SUPPORT NEW...MORE DISCRETE STORM DEVELOPMENT OVER SRN AL AND POSSIBLY THE WRN FL PANHANDLE LATER THIS MORNING. STRENGTH OF WIND FIELD /700 MB FLOW AOA 55 KTS/ AND QUALITY OF MOISTURE RETURN /PW AOA 1.50 INCHES/ SUGGEST POTENTIAL FOR SMALL BOWS WITH DMGG WIND...IN ADDITION TO OCCASIONAL TORNADOES. 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 23040. ...CORFIDI
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 8:02 PM CDT | Mesoscale Discussion | SPC | Autauga, Bibb, Chilton, Coosa, Dallas, Elmore and 14 more | 118 min |
| Apr 6, 10:10 PM CDT | Mesoscale Discussion | SPC | Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 8 more | 2 hr |
| Apr 6, 11:42 PM CDT | Mesoscale Discussion | SPC | Autauga, Bibb, Chilton, Coosa, Dallas, Elmore and 10 more | 2 hr |
| Apr 7, 12:50 AM CDT | Mesoscale Discussion | SPC | Autauga, Baldwin, Bibb, Bullock, Butler, Chambers and 32 more | 25 min |
| Apr 7, 3:16 AM CDT | Mesoscale Discussion | SPC | Autauga, Baldwin, Bibb, Butler, Chilton, Choctaw and 25 more | 119 min |
| Apr 7, 5:42 AM CDT | Mesoscale Discussion | SPC | Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 40 more | 2 hr |
| Apr 7, 7:46 AM CDT | Tornado Watch | SPC | Baldwin, Barbour, Bullock, Butler, Coffee, Conecuh and 12 more | 7 hr |
| Apr 7, 10:04 AM CDT | Mesoscale Discussion | SPC | Dale, Geneva, Henry, Houston | 116 min |
| Apr 6, 7:48 PM CDT | Mesoscale Discussion | SPC | Acadia, Calcasieu, Cameron, Evangeline, Jefferson Davis, Lafayette and 2 more | 87 min |
| Apr 6, 10:40 PM CDT | Mesoscale Discussion | SPC | Acadia, Iberia, Lafayette, Saint Landry, Saint Martin, St. Mary and 1 more | 65 min |
| Apr 6, 11:49 PM CDT | Mesoscale Discussion | SPC | Ascension, East Baton Rouge, East Feliciana, Iberville, Livingston, Saint Helena and 3 more | 86 min |
Nearby
Tornado Watches in Alabama, 2014Tornado Watches in Mississippi, 2014Tornado Watches in Louisiana, 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.