Alert archive / Alabama / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 265

June 17, 201659 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; 55 counties in Mississippi

The Storm Prediction Center issued this severe thunderstorm watch at Jun 17, 2016, 12:37 PM CDT for 59 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; 55 counties in Mississippi. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: Jun 17, 2016, 12:37 PM CDT (17:37 UTC)
Expired: Jun 17, 2016, 9:00 PM CDT
In force: 8 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 60 kt

All 117 counties

Autauga County, AL, Baldwin County, AL, Barbour County, AL, Bibb County, AL, Blount County, AL, Bullock County, AL, Butler County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Choctaw County, AL, Clarke County, AL, Clay County, AL, Cleburne County, AL, Coffee County, AL, Conecuh County, AL, Coosa County, AL, Covington County, AL, Crenshaw County, AL, Cullman County, AL, Dale County, AL, Dallas County, AL, Elmore County, AL, Escambia County, AL, Etowah County, AL, Fayette County, AL, Franklin County, AL, Geneva County, AL, Greene County, AL, Hale County, AL, Henry County, AL, Houston County, AL, Jefferson County, AL, Lamar County, AL, Lawrence County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Marion 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, Walker County, AL, Washington County, AL, Wilcox County, AL, Winston County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, Attala County, MS, Bolivar County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clarke County, MS, Clay County, MS, Coahoma County, MS, Covington County, MS, Forrest County, MS, George County, MS, Greene County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Itawamba County, MS, Jasper County, MS, Jones County, MS, Kemper County, MS, Lafayette County, MS, Lauderdale County, MS, Leake County, MS, Lee County, MS, Leflore County, MS, Lowndes County, MS, Madison County, MS, Monroe County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Panola County, MS, Perry County, MS, Pontotoc County, MS, Quitman County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Stone County, MS, Sunflower County, MS, Tallahatchie County, MS, Union County, MS, Warren County, MS, Washington County, MS, Wayne County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Yazoo County, MS

The radar

The Columbus AFB radar (KGWX), 82 km from the middle of the area, began a volume at 17:38 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: 70%
One or more gusts of 65 knots or more: 20%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 30%
Six or more combined severe hail and wind reports: 90%

Warnings issued inside it

64 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jun 17, 12:41 PM CDT	Severe Thunderstorm Warning	HUN	Colbert, Franklin, Lawrence	49 min
Jun 17, 12:45 PM CDT	Severe Thunderstorm Warning	HUN	Cullman, Morgan	30 min
Jun 17, 12:48 PM CDT	Severe Thunderstorm Warning	BMX	Marion, Winston	57 min
Jun 17, 1:11 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba	34 min
Jun 17, 1:26 PM CDT	Severe Thunderstorm Warning	JAN	Clay, Lowndes	64 min
Jun 17, 1:30 PM CDT	Severe Thunderstorm Warning	BMX	Lamar	56 min
Jun 17, 1:31 PM CDT	Severe Thunderstorm Warning	MEG	Itawamba, Monroe	44 min
Jun 17, 1:32 PM CDT	Severe Thunderstorm Warning	BMX	Fayette	43 min
Jun 17, 1:44 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Marion, Walker, Winston	76 min
Jun 17, 1:53 PM CDT	Severe Thunderstorm Warning	JAN	Clay, Webster	52 min
Jun 17, 1:57 PM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw, Monroe	48 min
Jun 17, 2:11 PM CDT	Severe Thunderstorm Warning	BMX	Pickens	79 min
Jun 17, 2:24 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Calhoun, Etowah, St. Clair	66 min
Jun 17, 2:26 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cherokee, Cleburne	79 min
Jun 17, 2:26 PM CDT	Severe Thunderstorm Warning	JAN	Clay, Lowndes, Oktibbeha	54 min
Jun 17, 2:29 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	50 min
Jun 17, 2:46 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Choctaw, Grenada, Montgomery, Webster	59 min
Jun 17, 2:48 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee	72 min
Jun 17, 2:56 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Winston	64 min
Jun 17, 2:57 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Hale, Shelby, Tuscaloosa	78 min
Jun 17, 2:59 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Clay, Cleburne, Randolph, St. Clair, Talladega	76 min
Jun 17, 3:12 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Sumter	78 min
Jun 17, 3:28 PM CDT	Severe Thunderstorm Warning	JAN	Kemper	47 min
Jun 17, 3:36 PM CDT	Severe Thunderstorm Warning	BMX	Chilton, Hale, Perry	69 min
Jun 17, 3:43 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Carroll, Choctaw, Holmes, Montgomery, Winston	62 min
Jun 17, 3:58 PM CDT	Severe Thunderstorm Warning	BMX	Coosa	77 min
Jun 17, 4:00 PM CDT	Severe Thunderstorm Warning	BMX	Chambers	75 min
Jun 17, 4:01 PM CDT	Severe Thunderstorm Warning	JAN	Leflore	59 min
Jun 17, 4:09 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Dallas, Marengo	81 min
Jun 17, 4:13 PM CDT	Severe Thunderstorm Warning	JAN	Lauderdale	47 min
Jun 17, 4:19 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	56 min
Jun 17, 4:21 PM CDT	Severe Thunderstorm Warning	BMX	Clay, Randolph	39 min
Jun 17, 4:26 PM CDT	Severe Thunderstorm Warning	BMX	Elmore, Tallapoosa	79 min
Jun 17, 4:27 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Neshoba, Newton, Scott	78 min
Jun 17, 4:33 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Clarke, Wilcox	42 min
Jun 17, 4:38 PM CDT	Severe Thunderstorm Warning	JAN	Clarke, Jasper	82 min
Jun 17, 4:39 PM CDT	Severe Thunderstorm Warning	BMX	Lowndes, Montgomery	81 min
Jun 17, 4:46 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Carroll, Holmes, Leflore	74 min
Jun 17, 4:49 PM CDT	Severe Thunderstorm Warning	BMX	Lee	56 min
Jun 17, 4:52 PM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Marshall	38 min
Jun 17, 5:02 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Choctaw, Clarke, Conecuh, Crenshaw, Monroe and 2 more	58 min
Jun 17, 5:11 PM CDT	Severe Thunderstorm Warning	TAE	Houston	49 min
Jun 17, 5:14 PM CDT	Severe Thunderstorm Warning	BMX	Macon, Russell	63 min
Jun 17, 5:18 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Sunflower	72 min
Jun 17, 5:26 PM CDT	Severe Thunderstorm Warning	JAN	Scott, Smith	49 min
Jun 17, 5:30 PM CDT	Severe Thunderstorm Warning	JAN	Jones	60 min
Jun 17, 5:46 PM CDT	Severe Thunderstorm Warning	BMX	Bullock, Pike	74 min
Jun 17, 6:00 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Butler, Clarke, Conecuh, Covington, Crenshaw and 4 more	60 min
Jun 17, 6:05 PM CDT	Severe Thunderstorm Warning	BMX	Barbour	85 min
Jun 17, 6:06 PM CDT	Severe Thunderstorm Warning	JAN	Leflore	54 min
Jun 17, 6:12 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Forrest, Lamar	63 min
Jun 17, 6:15 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Rankin	45 min
Jun 17, 6:17 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys, Leflore	73 min
Jun 17, 6:20 PM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale, Geneva, Henry, Houston	55 min
Jun 17, 6:24 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Escambia, Mobile	66 min
Jun 17, 6:31 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar, Humphreys, Sunflower, Washington	74 min
Jun 17, 6:53 PM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	67 min
Jun 17, 7:12 PM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale, Geneva, Henry, Houston	78 min
Jun 17, 7:17 PM CDT	Severe Thunderstorm Warning	JAN	Forrest, Lamar	43 min
Jun 17, 7:19 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys, Issaquena, Sharkey, Yazoo	71 min
Jun 17, 7:20 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	55 min
Jun 17, 7:38 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Yazoo	55 min
Jun 17, 7:44 PM CDT	Severe Thunderstorm Warning	JAN	Washington	76 min
Jun 17, 8:56 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Washington	51 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 12:00Z, 5.6 hours before the alert went out and 161 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2424 J/kg
Mixed-layer CIN: -74 J/kg
Mixed-layer LCL: 849 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 41 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 17, 11:34 AM CDT	Mesoscale Discussion	SPC	Autauga, Barbour, Bibb, Blount, Bullock, Butler and 38 more	116 min
Jun 17, 3:12 PM CDT	Mesoscale Discussion	SPC	Autauga, Bibb, Chilton, Choctaw, Clarke, Dallas and 10 more	93 min
Jun 17, 6:15 PM CDT	Mesoscale Discussion	SPC	Baldwin, Barbour, Bullock, Butler, Clarke, Coffee and 12 more	60 min
Jun 17, 4:08 PM CDT	Severe Thunderstorm Watch	SPC	Baker, Bay, Calhoun, Clay, Duval, Franklin and 12 more	6 hr
Jun 17, 6:38 PM CDT	Mesoscale Discussion	SPC	Baker, Duval, Hamilton, Nassau, Saint Johns	67 min
Jun 17, 11:59 AM CDT	Mesoscale Discussion	SPC	Appling, Bacon, Baldwin, Barrow, Ben Hill, Bibb and 80 more	2 hr
Jun 17, 12:52 PM CDT	Severe Thunderstorm Watch	SPC	Baldwin, Barrow, Bartow, Bibb, Bleckley, Bryan and 92 more	8 hr
Jun 17, 2:44 PM CDT	Mesoscale Discussion	SPC	Appling, Baldwin, Ben Hill, Bibb, Bleckley, Bryan and 55 more	61 min
Jun 17, 1:30 PM CDT	Mesoscale Discussion	SPC	Bolivar, Washington	2 hr

Nearby

Severe Thunderstorm Watches in Alabama, 2016 Severe Thunderstorm Watches in Mississippi, 2016 Severe Thunderstorm Watches in Florida, 2016 Every severe thunderstorm watch in 2016

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.