Alert archive / Mississippi / Severe Thunderstorm Watches in 2018
Severe Thunderstorm Watch 236
The Storm Prediction Center issued this severe thunderstorm watch at Jun 28, 2018, 4:59 PM CDT for 24 counties in Alabama; 10 counties in Florida; 27 counties in Mississippi. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 28, 2018, 4:59 PM CDT (21:59 UTC)
- Expired
- Jun 28, 2018, 11:50 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 61 counties
Baldwin County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Coffee County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Dallas County, AL, Escambia County, AL, Geneva County, AL, Greene County, AL, Hale County, AL, Henry County, AL, Houston County, AL, Marengo County, AL, Mobile County, AL, Monroe County, AL, Perry County, AL, Pickens County, AL, Sumter County, AL, Washington County, AL, Wilcox County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, Clarke County, MS, Clay 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, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Leake County, MS, Lowndes County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Pearl River County, MS, Perry County, MS, Scott County, MS, Smith County, MS, Stone County, MS, Wayne County, MS, Winston County, MS
The radar
The Mobile radar (KMOB), 128 km from the middle of the area, began a volume at 22:02 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
- 5%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
22 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 4:59 PM CDT | Severe Thunderstorm Warning | MOB | Butler, Crenshaw | 46 min |
| Jun 28, 5:08 PM CDT | Severe Thunderstorm Warning | BMX | Greene, Marengo, Pickens, Sumter | 37 min |
| Jun 28, 5:14 PM CDT | Severe Thunderstorm Warning | TAE | Coffee, Dale, Henry | 46 min |
| Jun 28, 5:22 PM CDT | Severe Thunderstorm Warning | MOB | Butler, Conecuh, Monroe, Wilcox | 53 min |
| Jun 28, 5:42 PM CDT | Severe Thunderstorm Warning | TAE | Coffee, Dale, Geneva, Henry, Houston | 48 min |
| Jun 28, 5:43 PM CDT | Severe Thunderstorm Warning | MOB | Butler, Conecuh, Covington, Crenshaw, Monroe | 62 min |
| Jun 28, 6:04 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh, Monroe | 41 min |
| Jun 28, 6:17 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh, Covington, Escambia, Monroe | 43 min |
| Jun 28, 6:24 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw, Clarke, Monroe, Washington, Wilcox | 51 min |
| Jun 28, 6:45 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh, Monroe | 30 min |
| Jun 28, 6:54 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Escambia | 51 min |
| Jun 28, 6:54 PM CDT | Severe Thunderstorm Warning | TAE | Houston | 51 min |
| Jun 28, 7:05 PM CDT | Severe Thunderstorm Warning | TAE | Bay, Walton, Washington | 40 min |
| Jun 28, 7:15 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Clarke, Mobile, Washington | 45 min |
| Jun 28, 7:34 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 41 min |
| Jun 28, 7:35 PM CDT | Severe Thunderstorm Warning | TAE | Bay, Walton | 25 min |
| Jun 28, 7:40 PM CDT | Severe Thunderstorm Warning | TAE | Bay, Calhoun, Gadsden, Gulf, Jackson, Liberty and 1 more | 34 min |
| Jun 28, 7:50 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin | 25 min |
| Jun 28, 8:26 PM CDT | Severe Thunderstorm Warning | JAN | Jasper, Smith | 34 min |
| Jun 28, 8:32 PM CDT | Severe Thunderstorm Warning | MOB | Baldwin, Mobile | 43 min |
| Jun 28, 8:49 PM CDT | Severe Thunderstorm Warning | LIX | Harrison, Jackson | 56 min |
| Jun 28, 9:01 PM CDT | Severe Thunderstorm Warning | JAN | Jones | 29 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, 10.0 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
- 1996 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 830 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 10:22 AM CDT | Mesoscale Discussion | SPC | Calhoun, Cherokee, Cleburne, DeKalb, Etowah, Jackson and 6 more | 113 min |
| Jun 28, 10:46 AM CDT | Severe Thunderstorm Watch | SPC | Autauga, Barbour, Blount, Bullock, Calhoun, Chambers and 32 more | 8 hr |
| Jun 28, 1:07 PM CDT | Mesoscale Discussion | SPC | Autauga, Barbour, Bibb, Blount, Bullock, Butler and 44 more | 113 min |
| Jun 28, 4:34 PM CDT | Mesoscale Discussion | SPC | Autauga, Baldwin, Butler, Choctaw, Clarke, Coffee and 21 more | 86 min |
| Jun 28, 6:22 PM CDT | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Clay, Columbia, Dixie and 17 more | 83 min |
Nearby
Severe Thunderstorm Watches in Mississippi, 2018Severe Thunderstorm Watches in Alabama, 2018Severe Thunderstorm Watches in Florida, 2018Every severe thunderstorm watch in 2018
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.