Alert archive / Mississippi / Tornado Watches in 2004
Tornado Watch 894
The Storm Prediction Center issued this tornado watch at Nov 24, 2004, 1:45 AM CST for 8 parishes in Louisiana; 21 counties in Mississippi. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 24, 2004, 1:45 AM CST (07:45 UTC)
- Expired
- Nov 24, 2004, 6:00 AM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 29 counties
East Baton Rouge Parish, LA, East Feliciana Parish, LA, Livingston Parish, LA, Pointe Coupee Parish, LA, Saint Helena Parish, LA, Saint Landry Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Adams County, MS, Amite County, MS, Attala County, MS, Claiborne County, MS, Copiah County, MS, Franklin County, MS, Hinds County, MS, Holmes County, MS, Jefferson County, MS, Lawrence County, MS, Leake County, MS, Lincoln County, MS, Madison County, MS, Pike County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Warren County, MS, Wilkinson County, MS, Winston County, MS, Yazoo County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 110 km from the middle of the area, began a volume at 07:49 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
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 24, 1:59 AM CST | Tornado Warning | JAN | Lawrence, Marion | 46 min |
| Nov 24, 2:00 AM CST | Severe Thunderstorm Warning | JAN | Scott | 30 min |
| Nov 24, 2:01 AM CST | Severe Thunderstorm Warning | LIX | Pointe Coupee, West Feliciana | 59 min |
| Nov 24, 2:22 AM CST | Severe Thunderstorm Warning | LIX | East Baton Rouge, East Feliciana, Iberville, West Baton Rouge | 68 min |
| Nov 24, 2:25 AM CST | Tornado Warning | JAN | Winston | 35 min |
| Nov 24, 2:32 AM CST | Severe Thunderstorm Warning | LIX | Amite | 58 min |
| Nov 24, 2:48 AM CST | Tornado Warning | LIX | Livingston | 27 min |
| Nov 24, 2:52 AM CST | Severe Thunderstorm Warning | LIX | Saint Helena, Tangipahoa | 53 min |
| Nov 24, 3:17 AM CST | Severe Thunderstorm Warning | LIX | Livingston | 58 min |
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 00:00Z, 7.8 hours before the alert went out and 107 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
- 1370 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 857 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 185 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 1.9
- Supercell composite
- 6.1
The text
As transmitted, in the capitals the NWS used until 2016.
217
WWUS20 KWNS 240746
SEL4
SPC WW 240745
LAZ000-MSZ000-241200-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 894
NWS STORM PREDICTION CENTER NORMAN OK
145 AM CST WED NOV 24 2004
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
EAST CENTRAL LOUISIANA
CENTRAL AND SOUTHERN MISSISSIPPI
EFFECTIVE THIS WEDNESDAY MORNING FROM 145 AM UNTIL 600 AM CST.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 45 STATUTE MILES EAST AND WEST
OF A LINE FROM 75 MILES NORTH NORTHEAST OF JACKSON MISSISSIPPI TO
75 MILES SOUTHWEST OF MC COMB MISSISSIPPI.
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.
OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 890...TORNADO WATCH NUMBER 888. WATCH NUMBER 890 888
WILL NOT BE IN EFFECT AFTER 145 AM CST. CONTINUE...WW 891...WW
892...WW 893...
DISCUSSION...INTENSE SQUALL LINE IS CROSSING THE MS RIVER INTO
MS...WHILE SEVERAL SEVERE CELLS CONTINUE AHEAD OF LINE. POTENTIAL
FOR DAMAGING WINDS AND ISOLATED TORNADOES WILL PERSIST IN THIS
REGION FOR ANOTHER FEW HOURS.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 24035.
...HART
331,0884 302,0903 302,0920 331,0902SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 23, 7:50 PM CST | Tornado Watch | SPC | Sabine | 6 hr |
| Nov 23, 7:53 PM CST | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Caldwell and 20 more | 37 min |
| Nov 23, 8:15 PM CST | Tornado Watch | SPC | Allen, Avoyelles, Beauregard, Caldwell, Catahoula, Concordia and 21 more | 6 hr |
| Nov 23, 9:14 PM CST | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Catahoula, Concordia, East Carroll and 7 more | 2 hr |
| Nov 23, 10:01 PM CST | Mesoscale Discussion | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 38 more | 119 min |
| Nov 23, 11:00 PM CST | Severe Thunderstorm Watch | SPC | Acadia, Ascension, Assumption, Calcasieu, Cameron, Iberia and 15 more | 7 hr |
| Nov 24, 12:30 AM CST | Mesoscale Discussion | SPC | Saint Tammany, Tangipahoa, Washington | 30 min |
| Nov 24, 12:45 AM CST | Tornado Watch | SPC | Saint Helena, Tangipahoa, Washington | 5 hr |
| Nov 24, 1:28 AM CST | Mesoscale Discussion | SPC | Avoyelles, Concordia, East Baton Rouge, East Carroll, East Feliciana, Evangeline and 9 more | 32 min |
| Nov 24, 2:43 AM CST | Mesoscale Discussion | SPC | Tangipahoa, Washington | 62 min |
| Nov 24, 2:50 AM CST | Tornado Watch | SPC | Ascension, Assumption, East Baton Rouge, Iberville, Jefferson, Lafourche and 11 more | 3 hr |
| Nov 24, 5:35 AM CST | Mesoscale Discussion | SPC | Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard | 25 min |
| Nov 24, 5:55 AM CST | Tornado Watch | SPC | Plaquemines, Saint Bernard | 2 hr |
| Nov 23, 6:35 PM CST | Tornado Watch | SPC | Alcorn, Attala, Benton, Calhoun, Carroll, Chickasaw and 28 more | 7 hr |
| Nov 23, 9:00 PM CST | Mesoscale Discussion | SPC | Alcorn, Itawamba, Prentiss, Tishomingo | 2 hr |
| Nov 23, 9:20 PM CST | Tornado Watch | SPC | Itawamba, Lowndes, Monroe, Tishomingo | 7 hr |
| Nov 24, 3:35 AM CST | Mesoscale Discussion | SPC | Lowndes | 25 min |
| Nov 24, 4:57 AM CST | Mesoscale Discussion | SPC | Clarke, Forrest, George, Greene, Lamar, Pearl River and 3 more | 63 min |
| Nov 24, 5:20 AM CST | Tornado Watch | SPC | George, Jackson | 6 hr |
| Nov 24, 10:16 AM CST | Mesoscale Discussion | SPC | Alcorn, Benton, Lafayette, Marshall, Prentiss, Tippah and 1 more | 2 hr |
Nearby
Tornado Watches in Mississippi, 2004Tornado Watches in Louisiana, 2004Every tornado watch in 2004
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.