Alert archive / Alabama / Severe Thunderstorm Watches in 2014
Severe Thunderstorm Watch 270
The Storm Prediction Center issued this severe thunderstorm watch at Jun 9, 2014, 5:16 PM CDT for 26 counties in Alabama; 21 counties in Mississippi. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 9, 2014, 5:16 PM CDT (22:16 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 47 counties
Autauga County, AL, Bibb County, AL, Blount County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Dallas County, AL, Elmore County, AL, Etowah County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Marengo County, AL, Perry County, AL, Pickens County, AL, Randolph County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Choctaw County, MS, Clarke County, MS, Clay County, MS, Covington County, MS, Jasper County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Lowndes County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Webster County, MS, Winston County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 67 km from the middle of the area, began a volume at 22:15 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
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- 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 |
|---|---|---|---|---|
| Jun 9, 5:32 PM CDT | Severe Thunderstorm Warning | JAN | Clay, Webster | 58 min |
| Jun 9, 5:45 PM CDT | Severe Thunderstorm Warning | JAN | Attala, Leake, Madison, Rankin, Scott | 60 min |
| Jun 9, 5:49 PM CDT | Severe Thunderstorm Warning | JAN | Attala, Choctaw, Montgomery, Winston | 41 min |
| Jun 9, 6:07 PM CDT | Severe Thunderstorm Warning | JAN | Simpson, Smith | 38 min |
| Jun 9, 6:18 PM CDT | Severe Thunderstorm Warning | JAN | Attala, Choctaw, Clay, Montgomery, Oktibbeha, Webster and 1 more | 57 min |
| Jun 9, 6:23 PM CDT | Severe Thunderstorm Warning | JAN | Neshoba, Newton | 67 min |
| Jun 9, 6:53 PM CDT | Severe Thunderstorm Warning | JAN | Clay, Lowndes, Noxubee, Oktibbeha, Winston | 52 min |
| Jun 9, 6:54 PM CDT | Severe Thunderstorm Warning | BMX | Pickens | 66 min |
| Jun 9, 7:13 PM CDT | Severe Thunderstorm Warning | JAN | Clarke, Jasper | 47 min |
| Jun 9, 7:32 PM CDT | Severe Thunderstorm Warning | BMX | Pickens | 58 min |
| Jun 9, 7:43 PM CDT | Severe Thunderstorm Warning | JAN | Kemper, Noxubee | 33 min |
| Jun 9, 8:11 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 49 min |
| Jun 9, 8:32 PM CDT | Severe Thunderstorm Warning | BMX | Greene, Sumter | 43 min |
| Jun 9, 8:35 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 70 min |
| Jun 9, 8:51 PM CDT | Severe Thunderstorm Warning | BMX | Hale | 54 min |
| Jun 9, 8:56 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 64 min |
| Jun 9, 9:23 PM CDT | Severe Thunderstorm Warning | BMX | Bibb | 54 min |
| Jun 9, 9:31 PM CDT | Severe Thunderstorm Warning | BMX | Blount, Walker | 45 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
Jackson, MS (KJAN), launched 12:00Z, 10.3 hours before the alert went out and 75 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
- 1036 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 769 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.5
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, 5:19 PM CDT | Mesoscale Discussion | SPC | Colbert, Franklin, Lauderdale, Lawrence, Marion | 26 min |
| Jun 9, 5:30 PM CDT | Tornado Watch | SPC | Colbert, Cullman, Fayette, Franklin, Lamar, Lauderdale and 6 more | 8 hr |
| 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
Severe Thunderstorm Watches in Alabama, 2014Severe Thunderstorm Watches in Mississippi, 2014Every severe thunderstorm 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.