Alert archive / Mississippi / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 102

March 18, 20004 counties in Arkansas; 29 parishes in Louisiana; 39 counties in Mississippi

The Storm Prediction Center issued this severe thunderstorm watch at Mar 18, 2000, 3:15 PM CST for 4 counties in Arkansas; 29 parishes in Louisiana; 39 counties in Mississippi. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Mar 18, 2000, 3:15 PM CST (21:15 UTC)
Expired
Mar 18, 2000, 8:00 PM 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, Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Caldwell Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, East Baton Rouge Parish, LA, East Carroll Parish, LA, East Feliciana Parish, LA, Evangeline Parish, LA, Franklin Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Ouachita Parish, LA, Pointe Coupee Parish, LA, Rapides Parish, LA, Richland Parish, LA, Saint Helena Parish, LA, Saint Landry Parish, LA, Tangipahoa Parish, LA, Tensas Parish, LA, Union Parish, LA, Vernon Parish, LA, West Carroll Parish, LA, West Feliciana Parish, LA, Winn Parish, LA, Adams County, MS, Amite County, MS, Attala County, MS, Bolivar County, MS, Carroll County, MS, Choctaw County, MS, Claiborne County, MS, Clay County, MS, Copiah County, MS, Franklin County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Jefferson County, MS, Jefferson Davis County, MS, Lawrence County, MS, Leake County, MS, Leflore County, MS, Lincoln County, MS, Madison County, MS, Montgomery County, MS, Neshoba County, MS, Oktibbeha County, MS, Pike County, MS, Rankin County, MS, Scott County, MS, Sharkey County, MS, Simpson County, MS, Smith County, MS, Sunflower County, MS, Walthall County, MS, Warren County, MS, Washington County, MS, Webster County, MS, Wilkinson County, MS, Winston County, MS, Yazoo County, MS

The radar

The Ft Polk radar (KPOE), 154 km from the middle of the area, began a volume at 21:15 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Mar 18, 3:27 PM CSTSevere Thunderstorm WarningLCHBeauregard33 min
Mar 18, 3:33 PM CSTSevere Thunderstorm WarningJANJefferson Davis42 min
Mar 18, 3:54 PM CSTSevere Thunderstorm WarningLCHBeauregard, Calcasieu66 min
Mar 18, 3:54 PM CSTSevere Thunderstorm WarningLCHAllen66 min
Mar 18, 4:10 PM CSTSevere Thunderstorm WarningLCHVernon65 min
Mar 18, 4:14 PM CSTSevere Thunderstorm WarningLCHRapides61 min
Mar 18, 4:33 PM CSTSevere Thunderstorm WarningJANFranklin42 min
Mar 18, 4:57 PM CSTSevere Thunderstorm WarningJANCatahoula, Tensas48 min
Mar 18, 5:38 PM CSTSevere Thunderstorm WarningJANMadison37 min
Mar 18, 7:31 PM CSTFlash Flood WarningJANMorehouse, Richland, West Carroll2 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.3 hours before the alert went out and 150 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 2000-03-18Temperature 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, Jackson, MS at 12:00Z on 2000-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 186 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1142 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
186 m²/s²
0-3 km storm-relative helicity
267 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 18, 2:15 PM CSTSevere Thunderstorm WatchSPCBradley, Calhoun, Clark, Cleveland, Columbia, Dallas and 14 more6 hr
Mar 18, 5:30 PM CSTSevere Thunderstorm WatchSPCAshley, Bradley, Columbia, Lafayette, Miller, Union7 hr

Nearby

Severe Thunderstorm Watches in Mississippi, 2000Severe Thunderstorm Watches in Louisiana, 2000Severe Thunderstorm Watches in Arkansas, 2000Every severe thunderstorm watch in 2000

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.