Alert archive / Alabama / Mesoscale Discussions in 2018
Mesoscale Discussion 193
The Storm Prediction Center issued this mesoscale discussion at Mar 28, 2018, 8:27 PM CDT for 7 counties in Alabama; 7 counties in Mississippi. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Mar 28, 2018, 8:27 PM CDT (01:27 UTC)
- Expired
- Mar 28, 2018, 10:00 PM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
Counties Colbert County, AL, Franklin County, AL, Lamar County, AL, Lawrence County, AL, Limestone County, AL, Marion County, AL, Winston County, AL, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Itawamba County, MS, Lee County, MS, Monroe County, MS, Oktibbeha County, MS
The radar
The Columbus AFB radar (KGWX), 25 km from the middle of the area, began a volume at 01:26 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
Little Rock, AR (KBYH), launched 00:00Z, 1.5 hours before the alert went out and 174 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
- 4 J/kg
- Mixed-layer CIN
- -138 J/kg
- Mixed-layer LCL
- 778 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| Mar 29, 12:30 PM CDT | Mesoscale Discussion | SPC | Baldwin, Clarke, Conecuh, Escambia, Mobile, Monroe and 1 more | 2 hr |
Nearby
Mesoscale Discussions in Alabama, 2018Mesoscale Discussions in Mississippi, 2018Every mesoscale discussion 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.