Alert archive / Mississippi / Severe Thunderstorm Watches in 1998

Severe Thunderstorm Watch 84

March 7, 19985 counties in Arkansas; 12 parishes in Louisiana; 55 counties in Mississippi

The Storm Prediction Center issued this severe thunderstorm watch at Mar 7, 1998, 6:00 AM CST for 5 counties in Arkansas; 12 parishes in Louisiana; 55 counties in Mississippi. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Mar 7, 1998, 6:00 AM CST (12:00 UTC)
Expired
Mar 7, 1998, 11:00 AM CST
In force
5 hr
Issued by
the Storm Prediction Center
All 72 counties

Ashley County, AR, Chicot County, AR, Desha County, AR, Drew County, AR, Lincoln County, AR, Caldwell Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, LaSalle Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Ouachita Parish, LA, Richland Parish, LA, Tensas Parish, LA, West Carroll Parish, LA, Adams County, MS, Amite County, MS, Attala County, MS, Bolivar County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Claiborne County, MS, Clarke County, MS, Clay County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, Greene County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Leake County, MS, Leflore County, MS, Lincoln County, MS, Lowndes County, MS, Madison County, MS, Marion County, MS, Monroe County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Sunflower County, MS, Tallahatchie County, MS, Warren County, MS, Washington County, MS, Wayne County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Yazoo County, MS

Warnings issued inside it

13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Mar 7, 6:11 AM CSTSevere Thunderstorm WarningJANHinds49 min
Mar 7, 6:28 AM CSTSevere Thunderstorm WarningJANWarren47 min
Mar 7, 6:37 AM CSTSevere Thunderstorm WarningJANFranklin, Madison53 min
Mar 7, 6:43 AM CSTSevere Thunderstorm WarningJANMadison, Rankin47 min
Mar 7, 6:59 AM CSTSevere Thunderstorm WarningJANEast Carroll46 min
Mar 7, 7:02 AM CSTSevere Thunderstorm WarningJANYazoo43 min
Mar 7, 7:07 AM CSTSevere Thunderstorm WarningSHVLaSalle48 min
Mar 7, 7:23 AM CSTSevere Thunderstorm WarningJANIssaquena52 min
Mar 7, 7:42 AM CSTSevere Thunderstorm WarningJANFranklin, Richland48 min
Mar 7, 7:51 AM CSTSevere Thunderstorm WarningJANSharkey24 min
Mar 7, 8:35 AM CSTSevere Thunderstorm WarningJANAshley40 min
Mar 7, 8:45 AM CSTSevere Thunderstorm WarningLZKDrew60 min
Mar 7, 10:43 AM CSTSevere Thunderstorm WarningJANAdams47 min

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 0.0 hours before the alert went out and 58 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 1998-03-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1998-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 114 square meters per square second.1939587897117Sfc1 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
2 J/kg
Mixed-layer CIN
-286 J/kg
Mixed-layer LCL
599 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
114 m²/s²
0-3 km storm-relative helicity
281 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 7, 3:45 AM CSTTornado WatchSPCAcadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 30 more6 hr
Mar 7, 8:45 AM CSTTornado WatchSPCBienville, Bossier, Caddo, Claiborne, De Soto, Grant and 8 more5 hr
Mar 7, 12:30 PM CSTSevere Thunderstorm WatchSPCCaldwell, Catahoula, Concordia, East Carroll, Franklin, LaSalle and 6 more6 hr
Mar 7, 1:30 PM CSTTornado WatchSPCAcadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 29 more6 hr
Mar 7, 3:30 PM CSTTornado WatchSPCAvoyelles, Bienville, Caldwell, Catahoula, Concordia, De Soto and 10 more4 hr

Nearby

Severe Thunderstorm Watches in Mississippi, 1998Severe Thunderstorm Watches in Louisiana, 1998Severe Thunderstorm Watches in Arkansas, 1998Every severe thunderstorm watch in 1998

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.