Alert archive / Mississippi / Tornado Watches in 2020
Tornado Watch 75
The Storm Prediction Center issued this tornado watch at Mar 28, 2020, 9:58 PM CDT for 22 counties in Alabama; 31 counties in Mississippi; Franklin County, Lincoln County, Moore County, Tennessee. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 28, 2020, 9:58 PM CDT (02:58 UTC)
- Expired
- Mar 29, 2020, 5:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 55 kt
All 56 counties
Blount County, AL, Colbert County, AL, Cullman County, AL, DeKalb County, AL, Fayette County, AL, Franklin County, AL, Greene County, AL, Jackson County, AL, Jefferson County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marion County, AL, Marshall County, AL, Morgan County, AL, Pickens County, AL, Sumter County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL, Attala County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Itawamba County, MS, Kemper County, MS, Lauderdale County, MS, Leake County, MS, Lee 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, Pontotoc County, MS, Prentiss County, MS, Scott County, MS, Sharkey County, MS, Tishomingo County, MS, Warren County, MS, Webster County, MS, Winston County, MS, Yazoo County, MS, Franklin County, TN, Lincoln County, TN, Moore County, TN
The radar
The Columbus AFB radar (KGWX), 46 km from the middle of the area, began a volume at 02:59 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
- 50%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 10:08 PM CDT | Severe Thunderstorm Warning | JAN | Humphreys, Leflore, Sharkey, Sunflower, Washington | 31 min |
| Mar 28, 10:40 PM CDT | Severe Thunderstorm Warning | MEG | Alcorn, Lee, Prentiss, Tippah, Tishomingo, Union | 16 min |
| Mar 28, 11:22 PM CDT | Severe Thunderstorm Warning | MEG | Alcorn, Itawamba, Lafayette, Lee, Pontotoc, Prentiss and 2 more | 38 min |
| Mar 29, 12:45 AM CDT | Severe Thunderstorm Warning | HUN | Lauderdale | 30 min |
| Mar 29, 1:02 AM CDT | Severe Thunderstorm Warning | HUN | Colbert, Franklin | 28 min |
| Mar 29, 1:11 AM CDT | Severe Thunderstorm Warning | JAN | Leake, Rankin, Scott | 29 min |
| Mar 29, 1:11 AM CDT | Severe Thunderstorm Warning | MEG | Itawamba, Lee, Prentiss, Tishomingo | 49 min |
| Mar 29, 1:30 AM CDT | Severe Thunderstorm Warning | JAN | Noxubee, Oktibbeha, Winston | 45 min |
| Mar 29, 1:31 AM CDT | Severe Thunderstorm Warning | JAN | Clay, Lowndes, Oktibbeha | 44 min |
| Mar 29, 1:33 AM CDT | Severe Thunderstorm Warning | HUN | Lincoln, Moore | 27 min |
| Mar 29, 1:36 AM CDT | Severe Thunderstorm Warning | JAN | Leake, Neshoba | 39 min |
| Mar 29, 1:37 AM CDT | Severe Thunderstorm Warning | HUN | Colbert, Lauderdale, Lawrence, Limestone | 38 min |
| Mar 29, 1:50 AM CDT | Severe Thunderstorm Warning | MEG | Monroe | 25 min |
| Mar 29, 1:53 AM CDT | Severe Thunderstorm Warning | BMX | Lamar | 37 min |
| Mar 29, 2:04 AM CDT | Severe Thunderstorm Warning | JAN | Kemper, Noxubee | 41 min |
| Mar 29, 2:08 AM CDT | Severe Thunderstorm Warning | BMX | Fayette, Marion | 52 min |
| Mar 29, 2:20 AM CDT | Severe Thunderstorm Warning | HUN | Limestone, Madison | 25 min |
| Mar 29, 2:27 AM CDT | Severe Thunderstorm Warning | BMX | Walker, Winston | 48 min |
| Mar 29, 2:33 AM CDT | Severe Thunderstorm Warning | BMX | Pickens | 42 min |
| Mar 29, 2:42 AM CDT | Severe Thunderstorm Warning | HUN | Franklin, Lincoln, Moore | 33 min |
| Mar 29, 2:52 AM CDT | Severe Thunderstorm Warning | HUN | Cullman, Lawrence, Limestone, Madison, Marshall, Morgan | 38 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 00:00Z, 3.0 hours before the alert went out and 139 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
- 108 J/kg
- Mixed-layer CIN
- -329 J/kg
- Mixed-layer LCL
- 1672 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
537 WWUS20 KWNS 290255 SEL5 SPC WW 290255 ALZ000-LAZ000-MSZ000-TNZ000-290900- URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 75 NWS Storm Prediction Center Norman OK 1000 PM CDT Sat Mar 28 2020 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Northwest Alabama Far northeast Louisiana West-central to northeast Mississippi Far southern middle Tennessee * Effective this Saturday night and Sunday morning from 1000 PM until 400 AM CDT. * Primary threats include... A couple tornadoes possible Scattered damaging wind gusts to 65 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorm clusters will likely progress east-northeast from the Ark-La-Miss region into the Tennessee Valley overnight, offering a risk for a couple tornadoes and scattered damaging winds. The tornado watch area is approximately along and 60 statute miles east and west of a line from 40 miles north of Huntsville AL to 130 miles southwest of Columbus MS. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). 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...CONTINUE...WW 71...WW 72...WW 73...WW 74... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 24045. ...Grams
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 8:25 PM CDT | Mesoscale Discussion | SPC | Colbert, Franklin, Lauderdale, Lawrence, Marion | 95 min |
| Mar 28, 11:27 PM CDT | Mesoscale Discussion | SPC | Colbert, Franklin, Lamar, Lauderdale, Lawrence, Limestone and 2 more | 93 min |
| Mar 29, 1:50 AM CDT | Mesoscale Discussion | SPC | Jackson, Lawrence, Limestone, Madison | 85 min |
| Mar 29, 2:17 AM CDT | Mesoscale Discussion | SPC | Blount, Cullman, Fayette, Jefferson, Lamar, Marion and 4 more | 88 min |
| Mar 28, 7:46 PM CDT | Mesoscale Discussion | SPC | Attala, Claiborne, Hinds, Holmes, Humphreys, Issaquena and 7 more | 89 min |
| Mar 28, 9:34 PM CDT | Tornado Watch | SPC | Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland and 28 more | 6 hr |
Nearby
Tornado Watches in Mississippi, 2020Tornado Watches in Alabama, 2020Tornado Watches in Tennessee, 2020Every tornado watch in 2020
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.