Alert archive / Mississippi / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 41
The Storm Prediction Center issued this severe thunderstorm watch at Mar 25, 2002, 11:00 PM CST for 4 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 25, 2002, 11:00 PM CST (05:00 UTC)
- Expired
- Mar 26, 2002, 5:00 AM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 63 counties
Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Cleveland County, AR, Desha County, AR, Drew County, AR, Ouachita County, AR, Union County, AR, Bienville Parish, LA, Caldwell Parish, LA, Catahoula Parish, LA, Claiborne Parish, LA, Concordia Parish, LA, De Soto Parish, LA, East Carroll Parish, LA, Franklin Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Red River Parish, LA, Richland Parish, LA, Sabine Parish, LA, Tensas Parish, LA, Union Parish, LA, Webster Parish, LA, West Carroll Parish, LA, Winn Parish, LA, Adams County, MS, Attala County, MS, Bolivar County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Claiborne 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, Leake County, MS, Leflore County, MS, Lincoln County, MS, Madison County, MS, Montgomery County, MS, Rankin County, MS, Sharkey County, MS, Sunflower County, MS, Warren County, MS, Washington County, MS, Webster County, MS, Yazoo County, MS, Sabine County, TX, San Augustine County, TX
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 25, 11:47 PM CST | Severe Thunderstorm Warning | JAN | Washington | 28 min |
| Mar 25, 11:50 PM CST | Severe Thunderstorm Warning | JAN | Concordia | 55 min |
| Mar 26, 12:28 AM CST | Severe Thunderstorm Warning | JAN | Franklin | 62 min |
| Mar 26, 12:43 AM CST | Severe Thunderstorm Warning | JAN | Adams | 32 min |
| Mar 26, 12:46 AM CST | Severe Thunderstorm Warning | JAN | Adams | 29 min |
| Mar 26, 1:41 AM CST | Severe Thunderstorm Warning | JAN | Franklin | 34 min |
| Mar 26, 2:04 AM CST | Severe Thunderstorm Warning | JAN | Lincoln | 41 min |
| Mar 26, 2:43 AM CST | Severe Thunderstorm Warning | JAN | Hinds, Warren | 32 min |
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 5.0 hours before the alert went out and 155 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.
- Mixed-layer CAPE
- 1114 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 504 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 125 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS20 KWNS 260446 SEL1 SPC WW 260438 ARZ000-LAZ000-MSZ000-TXZ000-261100- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 41 STORM PREDICTION CENTER NORMAN OK 1038 PM CST MON MAR 25 2002 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF SOUTHERN ARKANSAS NORTHERN AND CENTRAL LOUISIANA WESTERN AND CENTRAL MISSISSIPPI A SMALL PART OF EAST TEXAS EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 1100 PM UNTIL 500 AM CST. HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 115 STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES SOUTH SOUTHWEST OF ALEXANDRIA LOUISIANA TO 35 MILES NORTH NORTHEAST OF GREENVILLE MISSISSIPPI. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES. OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES SEVERE THUNDERSTORM WATCH NUMBER 38. WATCH NUMBER 38 WILL NOT BE IN EFFECT AFTER 1100 PM CST. CONTINUE...WW 39...WW 40... DISCUSSION...ELEVATED SUPERCELLS EXPECTED TO CONTINUE DEVELOPING ABOVE FRONTAL SURFACE MOVING E ACROSS LA/SRN AR. A FEW SURFACE- BASED SUPERCELLS MAY ALSO DEVELOP ALONG AND AHEAD OF FRONT. SUFFICIENT ELEVATED INSTABILITY WILL CONTINUE TO EXIST FOR LARGE HAIL...WITH SOME THREAT FOR BOWING STRUCTURES IF STORMS ARE ABLE TO CLUSTER ALONG FRONT. AN OUTSIDE CHANCE WILL ALSO EXIST FOR A TORNADO OR TWO...ESPECIALLY WITH ANY STORMS AHEAD OF LINE IN LA/MS...BUT LOW LEVEL SPEED/DIRECTIONAL SHEAR EXPECTED TO REMAIN TOO MARGINAL TO JUSTIFY AS TORNADO WATCH ATTM. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 24040. ...CORFIDI 335,0884 311,0902 311,0941 335,0924 WWUS20 KWNS 260446 SEL1 SPC WW 260438 ARZ000-LAZ000-MSZ000-TXZ000-261100- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 41 STORM PREDICTION CENTER NORMAN OK 1038 PM CST MON MAR 25 2002 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF SOUTHERN ARKANSAS NORTHERN AND CENTRAL LOUISIANA WESTERN AND CENTRAL MISSISSIPPI A SMALL PART OF EAST TEXAS EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 1100 PM UNTIL 500 AM CST. HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 115 STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES SOUTH SOUTHWEST OF ALEXANDRIA LOUISIANA TO 35 MILES NORTH NORTHEAST OF GREENVILLE MISSISSIPPI. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES. OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES SEVERE THUNDERSTORM WATCH NUMBER 38. WATCH NUMBER 38 WILL NOT BE IN EFFECT AFTER 1100 PM CST. CONTINUE...WW 39...WW 40... DISCUSSION...ELEVATED SUPERCELLS EXPECTED TO CONTINUE DEVELOPING ABOVE FRONTAL SURFACE MOVING E ACROSS LA/SRN AR. A FEW SURFACE- BASED SUPERCELLS MAY ALSO DEVELOP ALONG AND AHEAD OF FRONT. SUFFICIENT ELEVATED INSTABILITY WILL CONTINUE TO EXIST FOR LARGE HAIL...WITH SOME THREAT FOR BOWING STRUCTURES IF STORMS ARE ABLE TO CLUSTER ALONG FRONT. AN OUTSIDE CHANCE WILL ALSO EXIST FOR A TORNADO OR TWO...ESPECIALLY WITH ANY STORMS AHEAD OF LINE IN LA/MS...BUT LOW LEVEL SPEED/DIRECTIONAL SHEAR EXPECTED TO REMAIN TOO MARGINAL TO JUSTIFY AS TORNADO WATCH ATTM. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 24040. ...CORFIDI 335,0884 311,0902 311,0941 335,0924
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 25, 6:30 PM CST | Severe Thunderstorm Watch | SPC | Ashley, Bradley, Calhoun, Chicot, Columbia, Drew and 3 more | 6 hr |
| Mar 25, 10:00 PM CST | Severe Thunderstorm Watch | SPC | Arkansas, Clay, Craighead, Crittenden, Cross, Desha and 9 more | 5 hr |
| Mar 25, 7:30 PM CST | Severe Thunderstorm Watch | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron and 7 more | 6 hr |
| Mar 26, 12:00 AM CST | Severe Thunderstorm Watch | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 22 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Mississippi, 2002Severe Thunderstorm Watches in Louisiana, 2002Severe Thunderstorm Watches in Arkansas, 2002Every severe thunderstorm watch in 2002
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.