Alert archive / Mississippi / Mesoscale Discussions in 2008

Mesoscale Discussion 33

January 8, 20088 states

The Storm Prediction Center issued this mesoscale discussion at Jan 8, 2008, 1:11 PM CST for 8 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jan 8, 2008, 1:11 PM CST (19:11 UTC)
Expired
Jan 8, 2008, 3:15 PM CST
In force
2 hr
Issued by
the Storm Prediction Center
All 130 counties

Chicot County, AR, Crittenden County, AR, Desha County, AR, Lee County, AR, Mississippi County, AR, Phillips County, AR, St. Francis County, AR, Gallatin County, IL, Hardin County, IL, Massac County, IL, Pope County, IL, Crawford County, IN, Gibson County, IN, Perry County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Ballard County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Fulton County, KY, Graves County, KY, Hancock County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Muhlenberg County, KY, Ohio County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Webster County, KY, East Carroll Parish, LA, Madison Parish, LA, Dunklin County, MO, Mississippi County, MO, Pemiscot County, MO, Alcorn County, MS, Attala County, MS, Benton County, MS, Bolivar County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Claiborne County, MS, Clay County, MS, Coahoma County, MS, Copiah County, MS, DeSoto County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Itawamba County, MS, Jasper County, MS, Lafayette County, MS, Leake County, MS, Lee County, MS, Leflore County, MS, Lowndes County, MS, Madison County, MS, Marshall County, MS, Monroe County, MS, Montgomery 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, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Warren County, MS, Washington County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Yazoo County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dickson County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Houston County, TN, Humphreys County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Montgomery County, TN, Obion County, TN, Perry County, TN, Shelby County, TN, Stewart County, TN, Tipton County, TN, Wayne County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 107 km from the middle of the area, began a volume at 19:12 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

Little Rock, AR (KLZK), launched 12:00Z, 7.2 hours before the alert went out and 85 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, Little Rock, AR at 12:00Z on 2008-01-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 181 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, Little Rock, AR at 12:00Z on 2008-01-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 466 square meters per square second.19395878Sfc1 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
181 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
709 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
466 m²/s²
0-3 km storm-relative helicity
474 m²/s²
Significant tornado parameter
0.5
Supercell composite
5.1

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
Jan 7, 6:11 PM CSTMesoscale DiscussionSPCBenton, Carroll, Crawford, Franklin, Madison, Washington94 min
Jan 7, 7:48 PM CSTTornado Watch PDSSPCBaxter, Benton, Boone, Carroll, Crawford, Franklin and 9 more9 hr
Jan 7, 10:04 PM CSTMesoscale DiscussionSPCBenton, Carroll, Washington86 min
Jan 8, 3:44 AM CSTMesoscale DiscussionSPCBaxter, Benton, Carroll, Fulton91 min
Jan 8, 7:18 AM CSTMesoscale DiscussionSPCArkansas, Bradley, Calhoun, Clark, Cleburne, Cleveland and 34 more117 min
Jan 8, 8:34 AM CSTTornado WatchSPCArkansas, Bradley, Calhoun, Clark, Clay, Cleburne and 45 more5 hr
Jan 8, 11:27 AM CSTMesoscale DiscussionSPCArkansas, Ashley, Baxter, Bradley, Calhoun, Chicot and 48 more2 hr
Jan 8, 1:26 PM CSTTornado WatchSPCArkansas, Ashley, Bradley, Chicot, Crittenden, Desha and 7 more8 hr
Jan 7, 6:57 PM CSTMesoscale DiscussionSPCCalhoun, Greene, Jersey, Madison, Monroe, Pike and 2 more93 min
Jan 7, 7:03 PM CSTMesoscale DiscussionSPCChampaign, Clark, Coles, Crawford, Cumberland, Douglas and 4 more117 min
Jan 7, 10:12 PM CSTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Cumberland, DeWitt and 12 more2 hr
Jan 8, 11:40 AM CSTMesoscale DiscussionSPCJo Daviess5 hr
Jan 8, 12:22 PM CSTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 10 more83 min
Jan 7, 6:01 PM CSTTornado WatchSPCCass, Elkhart, Fulton, Kosciusko, LaGrange, LaPorte and 7 more5 hr
Jan 7, 8:22 PM CSTTornado WatchSPCAdams, Allen, Blackford, DeKalb, Grant, Huntington and 5 more3 hr
Jan 8, 4:03 PM CSTMesoscale DiscussionSPCHarrison, Perry, Spencer, Warrick117 min
Jan 8, 5:51 PM CSTMesoscale DiscussionSPCAllen, Clinton, Cumberland, Metcalfe, Monroe54 min
Jan 8, 3:59 PM CSTTornado WatchSPCAttala, Choctaw, Claiborne, Clarke, Clay, Copiah and 18 more3 hr
Jan 7, 8:25 PM CSTMesoscale DiscussionSPCBarton, Bates, Chariton, Henry, Howard, Johnson and 5 more65 min
Jan 7, 8:55 PM CSTSevere Thunderstorm WatchSPCBarton, Bates, Carroll, Cass, Cedar, Chariton and 12 more8 hr
Jan 7, 11:18 PM CSTMesoscale DiscussionSPCBarton, Bates, Benton, Cedar, Henry, Johnson and 3 more87 min
Jan 8, 2:02 AM CSTMesoscale DiscussionSPCDent, Douglas, Shannon, Texas, Wright118 min

Nearby

Mesoscale Discussions in Mississippi, 2008Mesoscale Discussions in Tennessee, 2008Mesoscale Discussions in Kentucky, 2008Every mesoscale discussion in 2008

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.