Alert archive / Mississippi / Mesoscale Discussions in 2014

Mesoscale Discussion 932

June 9, 201411 counties in Alabama; 13 counties in Mississippi; 6 counties in Tennessee

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2014, 6:55 PM CDT for 11 counties in Alabama; 13 counties in Mississippi; 6 counties in Tennessee. It was in force for 95 min.

The area

The outline as issued.

The facts

Issued
Jun 9, 2014, 6:55 PM CDT (23:55 UTC)
Expired
Jun 9, 2014, 8:30 PM CDT
In force
95 min
Issued by
the Storm Prediction Center
All 30 counties

Colbert County, AL, Fayette County, AL, Franklin County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Marion County, AL, Pickens County, AL, Walker County, AL, Winston County, AL, Alcorn County, MS, Chickasaw County, MS, Clay County, MS, Itawamba County, MS, Lee County, MS, Lowndes County, MS, Monroe County, MS, Oktibbeha County, MS, Pontotoc County, MS, Prentiss County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Giles County, TN, Hardin County, TN, Lawrence County, TN, Lewis County, TN, McNairy County, TN, Wayne County, TN

The radar

The Columbus AFB radar (KGWX), 66 km from the middle of the area, began a volume at 23:58 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 11.9 hours before the alert went out and 180 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, Birmingham, AL at 12:00Z on 2014-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 204 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, Birmingham, AL at 12:00Z on 2014-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 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
204 J/kg
Mixed-layer CIN
-208 J/kg
Mixed-layer LCL
1467 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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, 2:07 AM CDTMesoscale DiscussionSPCColbert, Fayette, Franklin, Lamar, Marion, Pickens83 min
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 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, 2014Mesoscale Discussions in Tennessee, 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.