Alert archive / Mississippi / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 715

July 10, 200322 counties in Mississippi

The Storm Prediction Center issued this severe thunderstorm watch at Jul 10, 2003, 12:15 PM CDT for 22 counties in Mississippi. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Jul 10, 2003, 12:15 PM CDT (17:15 UTC)
Expired
Jul 10, 2003, 4:00 PM CDT
In force
4 hr
Issued by
the Storm Prediction Center
All 22 counties

Attala County, MS, Calhoun County, MS, Chickasaw County, MS, Choctaw County, MS, Clarke County, MS, Clay County, MS, Jasper County, MS, Kemper County, MS, Lauderdale County, MS, Leake County, MS, Lowndes County, MS, Monroe County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Scott County, MS, Smith County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 5.3 hours before the alert went out and 96 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 12:00Z on 2003-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1934 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 12:00Z on 2003-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 square meters per square second.1939Sfc1 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
1934 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
606 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 10, 9:45 AM CDTMesoscale DiscussionSPCBolivar, Carroll, Hinds, Holmes, Humphreys, Issaquena and 7 more60 min
Jul 10, 10:23 AM CDTMesoscale DiscussionSPCAlcorn, Benton, Itawamba, Lafayette, Lee, Prentiss and 3 more97 min
Jul 10, 10:40 AM CDTSevere Thunderstorm WatchSPCBolivar, Carroll, Claiborne, Grenada, Hinds, Holmes and 12 more5 hr
Jul 10, 2:05 PM CDTMesoscale DiscussionSPCAttala, Bolivar, Calhoun, Carroll, Chickasaw, Choctaw and 32 more115 min

Nearby

Severe Thunderstorm Watches in Mississippi, 2003Every severe thunderstorm watch in 2003

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.