Alert archive / Mississippi / Mesoscale Discussions in 2016
Mesoscale Discussion 210
The Storm Prediction Center issued this mesoscale discussion at Mar 13, 2016, 11:57 PM CDT for East Carroll Parish, Louisiana; 16 counties in Mississippi; Fayette County, Haywood County, Tennessee. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Mar 13, 2016, 11:57 PM CDT (04:57 UTC)
- Expired
- Mar 14, 2016, 1:30 AM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
Counties East Carroll Parish, LA, Benton County, MS, Calhoun County, MS, Carroll County, MS, Grenada County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Lafayette County, MS, Leflore County, MS, Marshall County, MS, Montgomery County, MS, Sharkey County, MS, Sunflower County, MS, Tallahatchie County, MS, Yalobusha County, MS, Yazoo County, MS, Fayette County, TN, Haywood County, TN
The radar
The Columbus AFB radar (KGWX), 165 km from the middle of the area, began a volume at 04:59 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.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 5.0 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.
- Mixed-layer CAPE
- 32 J/kg
- Mixed-layer CIN
- -154 J/kg
- Mixed-layer LCL
- 1657 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
542
ACUS11 KWNS 140457
SWOMCD
SPC MCD 140457
TNZ000-MSZ000-LAZ000-140630-
MESOSCALE DISCUSSION 0210
NWS STORM PREDICTION CENTER NORMAN OK
1157 PM CDT SUN MAR 13 2016
AREAS AFFECTED...PORTIONS OF WEST-CENTRAL TO NORTHERN MS AND
SOUTHWEST TN
CONCERNING...TORNADO WATCH 43...
VALID 140457Z - 140630Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 43 CONTINUES.
SUMMARY...SEVERE WEATHER THREAT THROUGH 0530-07Z WILL BE CONFINED TO
SOUTHWEST TN TO NORTHERN AND WEST-CENTRAL MS. THEREAFTER...THE
OVERALL SEVERE WEATHER THREAT SHOULD UNDERGO FURTHER DIMINISHING
TREND.
DISCUSSION...AREA VWP DATA ACROSS MS REMAINS QUITE FAVORABLE FOR
STORM ORGANIZATION WITH STRONG LOW-LEVEL SHEAR PER VWP AT JACKSON
AND COLUMBUS MS FAVORING STORM ROTATION. WHILE A TORNADO CANNOT BE
RULED OUT INTO SOUTHWEST TN...THE RELATIVE GREATEST THREAT SHOULD BE
CONFINED TO WEST-CENTRAL MS WHERE MUCAPE IS THE STRONGEST /300-800 J
PER KG PER RAP ANALYSIS/. FORCING FOR ASCENT ALONG THE TRACK OF THE
COMPACT MIDLEVEL CLOSED LOW INTO NORTHERN MS AND WESTERN TN WILL
MAINTAIN A POTENTIAL FOR TSTMS INTO THE OVERNIGHT...BUT FURTHER
WEAKENING OF THE AVAILABLE INSTABILITY SHOULD RESULT IN A FURTHER
REDUCTION IN STRENGTH OF UPDRAFTS.
..PETERS.. 03/14/2016
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...MEG...JAN...
LAT...LON 32579141 33469081 33939021 34448974 35238959 35888933
35668903 34198926 33308945 32818999 32509051 32489073
32579141SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 13, 7:11 PM CDT | Tornado Watch | SPC | Claiborne, East Carroll, Lincoln, Morehouse, Ouachita, Union and 1 more | 6 hr |
| Mar 13, 8:51 PM CDT | Mesoscale Discussion | SPC | Caldwell, Franklin, Jackson, Madison, Ouachita, Richland | 84 min |
| Mar 13, 9:49 PM CDT | Mesoscale Discussion | SPC | East Carroll, Morehouse, Ouachita, West Carroll | 116 min |
| Mar 14, 11:38 AM CDT | Mesoscale Discussion | SPC | Anderson, Blount, Bradley, Carter, Claiborne, Cocke and 19 more | 97 min |
Nearby
Mesoscale Discussions in Mississippi, 2016Mesoscale Discussions in Tennessee, 2016Mesoscale Discussions in Louisiana, 2016Every mesoscale discussion 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.