Alert archive / Mississippi / Mesoscale Discussions in 2004

Mesoscale Discussion 1071

June 3, 20044 counties in Alabama; 28 counties in Mississippi

The Storm Prediction Center issued this mesoscale discussion at Jun 3, 2004, 1:24 PM CDT for 4 counties in Alabama; 28 counties in Mississippi. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 3, 2004, 1:24 PM CDT (18:24 UTC)
Expired
Jun 3, 2004, 3:30 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 32 counties

Fayette County, AL, Franklin County, AL, Lamar County, AL, Marion County, AL, Alcorn County, MS, Benton County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Coahoma County, MS, Grenada County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Leflore County, MS, Lowndes County, MS, Monroe County, MS, Montgomery County, MS, Oktibbeha County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Sunflower County, MS, Tallahatchie County, MS, Tippah County, MS, Tishomingo County, MS, Union County, MS, Webster County, MS, Yalobusha County, MS

The radar

The Columbus AFB radar (KGWX), 89 km from the middle of the area, began a volume at 18:27 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 (KLZK), launched 12:00Z, 6.4 hours before the alert went out and 119 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 2004-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2004-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1073 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 2, 8:10 PM CDTMesoscale DiscussionSPCLauderdale65 min
Jun 2, 8:15 PM CDTSevere Thunderstorm WatchSPCBolivar, Claiborne, Coahoma, Humphreys, Issaquena, Jefferson and 4 more6 hr
Jun 2, 10:21 PM CDTMesoscale DiscussionSPCAdams, Claiborne, Issaquena, Jefferson, Warren, Wilkinson54 min
Jun 2, 10:40 PM CDTSevere Thunderstorm WatchSPCAdams, Amite, Franklin, Lawrence, Lincoln, Pike and 2 more6 hr
Jun 3, 1:28 AM CDTMesoscale DiscussionSPCAdams, Amite, Claiborne, Copiah, Franklin, Hinds and 7 more92 min

Nearby

Mesoscale Discussions in Mississippi, 2004Mesoscale Discussions in Alabama, 2004Every mesoscale discussion in 2004

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.