Alert archive / Mississippi / Tornado Watches in 1997
Tornado Watch 206
The Storm Prediction Center issued this tornado watch at Apr 27, 1997, 4:15 AM CDT for 30 parishes in Louisiana; 32 counties in Mississippi. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 27, 1997, 4:15 AM CDT (09:15 UTC)
- Expired
- Apr 27, 1997, 10:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 62 counties
Ascension Parish, LA, Assumption Parish, LA, Avoyelles Parish, LA, Concordia Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Iberia Parish, LA, Iberville Parish, LA, Jefferson Parish, LA, Lafayette Parish, LA, Lafourche Parish, LA, Livingston Parish, LA, Madison Parish, LA, Orleans Parish, LA, Pointe Coupee Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, Saint Tammany Parish, LA, St. Mary Parish, LA, Tangipahoa Parish, LA, Tensas Parish, LA, Terrebonne Parish, LA, Vermilion Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Adams County, MS, Amite County, MS, Claiborne County, MS, Clarke County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, Hancock County, MS, Hinds County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Lincoln County, MS, Madison County, MS, Marion County, MS, Newton County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Stone County, MS, Walthall County, MS, Warren County, MS, Wilkinson County, MS
Warnings issued inside it
18 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 4:42 AM CDT | Severe Thunderstorm Warning | JAN | Lawrence | 33 min |
| Apr 27, 4:48 AM CDT | Tornado Warning | JAN | Jefferson Davis, Marion | 42 min |
| Apr 27, 5:07 AM CDT | Flash Flood Warning | LIX | Pike | 2 hr |
| Apr 27, 5:25 AM CDT | Severe Thunderstorm Warning | JAN | Covington | 35 min |
| Apr 27, 6:00 AM CDT | Severe Thunderstorm Warning | LIX | Walthall | 15 min |
| Apr 27, 6:01 AM CDT | Severe Thunderstorm Warning | JAN | Covington, Jones | 44 min |
| Apr 27, 6:03 AM CDT | Severe Thunderstorm Warning | JAN | Marion | 42 min |
| Apr 27, 6:23 AM CDT | Tornado Warning | JAN | Marion | 37 min |
| Apr 27, 6:44 AM CDT | Tornado Warning | JAN | Lamar | 46 min |
| Apr 27, 7:07 AM CDT | Severe Thunderstorm Warning | LCH | Iberia | 23 min |
| Apr 27, 7:07 AM CDT | Tornado Warning | JAN | Forrest | 53 min |
| Apr 27, 7:48 AM CDT | Severe Thunderstorm Warning | JAN | Jones | 27 min |
| Apr 27, 7:48 AM CDT | Flash Flood Warning | LIX | Pike | 117 min |
| Apr 27, 8:59 AM CDT | Severe Thunderstorm Warning | LIX | East Baton Rouge, Iberville, West Baton Rouge | 61 min |
| Apr 27, 9:07 AM CDT | Flash Flood Warning | JAN | Hinds | 2 hr |
| Apr 27, 9:32 AM CDT | Severe Thunderstorm Warning | LIX | Ascension, Livingston | 58 min |
| Apr 27, 9:32 AM CDT | Severe Thunderstorm Warning | LIX | Saint Helena | 58 min |
| Apr 27, 9:33 AM CDT | Flash Flood Warning | LCH | Iberia | 117 min |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 9.3 hours before the alert went out and 129 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
- 96 J/kg
- Mixed-layer CIN
- -414 J/kg
- Mixed-layer LCL
- 887 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 371 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
403 WWUS9 KMKC 270848 SEL6 MKC WW 270848 LAZ000-MSZ000-271500- BULLETIN - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 206 STORM PREDICTION CENTER NORMAN OK 348 AM CDT SUN APR 27 1997 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR ALL OR PORTIONS OF SOUTHERN AND EASTERN LOUISIANA SOUTHERN AND CENTRAL MISSISSIPPI AND ADJACENT COASTAL WATERS EFFECTIVE THIS SUNDAY MORNING FROM 415 AM UNTIL 1000 AM CDT. TORNADOES...HAIL TO 1 3/4 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 90 STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES SOUTHWEST OF HOUMA LOUISIANA TO 25 MILES NORTH NORTHEAST OF JACKSON MISSISSIPPI. OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO WATCH NUMBER 203...SEVERE THUNDERSTORM WATCH NUMBER 204. WATCH NUMBER 203...204 WILL NOT BE IN EFFECT AFTER 415 AM CDT. CONTINUE...WW 205... REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND 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. DISCUSSION...SURFACE LOW WILL MOVE ONSHORE INTO CENTRAL LA WITH 30 TO 40 KT LOW LEVEL JET THRU EASTERN LA INTO SOUTHERN MS. WARM ADVECTION WILL BRING INCREASING INSTABILITY OVER WATCH AREA WITH WIND SHEAR FAVORABLE FOR A FEW SUPERCELLS. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 3/4 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION VECTOR 22035. ...ROGASH 290,0924 323,0912 323,0882 290,0894
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 11:00 PM CDT | Tornado Watch | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 30 more | 6 hr |
| Apr 27, 12:00 AM CDT | Severe Thunderstorm Watch | SPC | Bienville, Bossier, Caddo, Caldwell, Catahoula, Claiborne and 20 more | 6 hr |
| Apr 27, 10:00 AM CDT | Tornado Watch | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 15 more | 6 hr |
| Apr 27, 2:00 PM CDT | Tornado Watch | SPC | George, Jackson | 6 hr |
Nearby
Tornado Watches in Mississippi, 1997Tornado Watches in Louisiana, 1997Every tornado watch in 1997
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.