Alert archive / Mississippi / Mesoscale Discussions in 2014

Mesoscale Discussion 916

June 9, 20146 counties in Alabama; 30 counties in Mississippi

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2014, 2:07 AM CDT for 6 counties in Alabama; 30 counties in Mississippi. It was in force for 83 min.

The area

The outline as issued.

The facts

Issued
Jun 9, 2014, 2:07 AM CDT (07:07 UTC)
Expired
Jun 9, 2014, 3:30 AM CDT
In force
83 min
Issued by
the Storm Prediction Center
All 36 counties

Colbert County, AL, Fayette County, AL, Franklin County, AL, Lamar County, AL, Marion County, AL, Pickens County, AL, Alcorn County, MS, Benton County, MS, Calhoun County, MS, Chickasaw County, MS, Clay County, MS, Grenada County, MS, Itawamba County, MS, Kemper County, MS, Lafayette County, MS, Lauderdale County, MS, Leake County, MS, Lee County, MS, Lowndes County, MS, Marshall County, MS, Monroe County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Scott County, MS, Tallahatchie County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Winston County, MS, Yalobusha County, MS

The radar

The Columbus AFB radar (KGWX), 78 km from the middle of the area, began a volume at 07:07 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, 7.1 hours before the alert went out and 165 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.

Skew-T log-pSkew-T log-p diagram, Jackson, MS at 00:00Z on 2014-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1268 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 2014-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1268 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1490 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 8, 7:09 PM CDTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Bullock, Butler, Chilton and 32 more2 hr
Jun 9, 4:54 PM CDTMesoscale DiscussionSPCColbert, Cullman, Fayette, Franklin, Greene, Lamar and 11 more96 min
Jun 9, 5:16 PM CDTSevere Thunderstorm WatchSPCAutauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 20 more8 hr
Jun 9, 5:19 PM CDTMesoscale DiscussionSPCColbert, Franklin, Lauderdale, Lawrence, Marion26 min
Jun 9, 5:30 PM CDTTornado WatchSPCColbert, Cullman, Fayette, Franklin, Lamar, Lauderdale and 6 more8 hr
Jun 9, 6:55 PM CDTMesoscale DiscussionSPCColbert, Fayette, Franklin, Lamar, Lauderdale, Lawrence and 5 more95 min
Jun 8, 7:47 PM CDTMesoscale DiscussionSPCAdams, Attala, Bolivar, Calhoun, Carroll, Chickasaw and 33 more88 min
Jun 8, 8:41 PM CDTSevere Thunderstorm WatchSPCAlcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 46 more7 hr
Jun 8, 10:53 PM CDTMesoscale DiscussionSPCAlcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 42 more97 min
Jun 9, 9:39 AM CDTMesoscale DiscussionSPCBolivar, Humphreys, Issaquena, Sharkey, Sunflower, Washington and 1 more2 hr
Jun 9, 11:40 AM CDTSevere Thunderstorm WatchSPCAttala, Bolivar, Carroll, Claiborne, Coahoma, Grenada and 18 more7 hr
Jun 9, 1:54 PM CDTMesoscale DiscussionSPCAlcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 25 more96 min
Jun 9, 2:14 PM CDTTornado WatchSPCAlcorn, Benton, Coahoma, DeSoto, Lafayette, Marshall and 7 more5 hr
Jun 9, 3:22 PM CDTMesoscale DiscussionSPCAdams, Attala, Bolivar, Carroll, Choctaw, Claiborne and 15 more83 min
Jun 9, 3:43 PM CDTMesoscale DiscussionSPCBenton, DeSoto, Lafayette, Marshall, Panola, Quitman and 4 more92 min

Nearby

Mesoscale Discussions in Mississippi, 2014Mesoscale Discussions in Alabama, 2014Every mesoscale discussion in 2014

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.