Alert archive / Mississippi / Mesoscale Discussions in 2019
Mesoscale Discussion 294
The Storm Prediction Center issued this mesoscale discussion at Apr 8, 2019, 4:05 PM CDT for 5 counties in Alabama; 33 counties in Mississippi. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 8, 2019, 4:05 PM CDT (21:05 UTC)
- Expired
- Apr 8, 2019, 6:15 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 38 counties
Fayette County, AL, Greene County, AL, Lamar County, AL, Pickens County, AL, Sumter County, AL, Attala County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Covington County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Itawamba County, MS, Jasper County, MS, Jefferson Davis 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, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Webster County, MS, Winston County, MS, Yazoo County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 98 km from the middle of the area, began a volume at 21:05 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.
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 9.1 hours before the alert went out and 226 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
- 153 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 1012 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 9:39 PM CDT | Mesoscale Discussion | SPC | Baldwin, Choctaw, Clarke, Mobile, Washington | 2 hr |
| Apr 8, 5:11 AM CDT | Mesoscale Discussion | SPC | Geneva | 94 min |
| Apr 8, 5:21 AM CDT | Mesoscale Discussion | SPC | Blount, Etowah, Marshall | 54 min |
| Apr 7, 7:46 PM CDT | Severe Thunderstorm Watch | SPC | Amite, Attala, Claiborne, Copiah, Covington, Forrest and 22 more | 3 hr |
Nearby
Mesoscale Discussions in Mississippi, 2019Mesoscale Discussions in Alabama, 2019Every mesoscale discussion in 2019
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.