Alert archive / Louisiana / Tornado Warnings in 2011
Tornado Warning 47, NWS Jackson, MS
NWS Jackson, MS issued this tornado warning at Apr 15, 2011, 7:06 AM CDT for Franklin Parish, Richland Parish, Louisiana. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 15, 2011, 7:06 AM CDT (12:06 UTC)
- Expired
- Apr 15, 2011, 7:30 AM CDT
- In force
- 24 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
Counties Franklin Parish, LA, Richland Parish, LA
The radar
The Jackson/Brandon,MS radar (KDGX), 157 km from the middle of the area, began a volume at 12:08 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 15, 2:19 AM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 0.1 hours before the alert went out and 148 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
- 1458 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 523 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 382 m²/s²
- 0-3 km storm-relative helicity
- 565 m²/s²
- Significant tornado parameter
- 4.0
- Supercell composite
- 14.6
The text
As transmitted, in the capitals the NWS used until 2016.
098
WFUS54 KJAN 151206
TORJAN
LAC041-083-151230-
/O.NEW.KJAN.TO.W.0047.110415T1206Z-110415T1230Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
706 AM CDT FRI APR 15 2011
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
* TORNADO WARNING FOR...
NORTHEASTERN FRANKLIN PARISH IN NORTHEAST LOUISIANA...
NORTHERN RICHLAND PARISH IN NORTHEAST LOUISIANA...
THIS INCLUDES THE CITIES OF...START...RAYVILLE...
* UNTIL 730 AM CDT
* AT 706 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES
SOUTHWEST OF START MOVING EAST AT 40 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
ALTO...ARCHIBALD...BAKERS...HOLLY RIDGE...WARDEN AND DELHI
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WARNING MEANS THAT A TORNADO IS OCCURRING OR IMMINENT. YOU
SHOULD ACTIVATE YOUR TORNADO ACTION PLAN AND TAKE PROTECTIVE ACTION
NOW.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT FRIDAY MORNING
FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND WESTERN
MISSISSIPPI.
&&
LAT...LON 3239 9200 3253 9191 3253 9185 3259 9152
3259 9148 3251 9147 3242 9148 3238 9145
3235 9150 3235 9147 3234 9147 3233 9147
3233 9201
TIME...MOT...LOC 1206Z 261DEG 34KT 3243 9192
$$
BK1 follow-up statement
708
WWUS54 KJAN 151228
SVSJAN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
728 AM CDT FRI APR 15 2011
LAC041-083-151239-
/O.EXP.KJAN.TO.W.0047.000000T0000Z-110415T1230Z/
RICHLAND LA-FRANKLIN LA-
728 AM CDT FRI APR 15 2011
...THE TORNADO WARNING FOR NORTHEASTERN FRANKLIN AND NORTHERN
RICHLAND PARISHES WILL EXPIRE AT 730 AM CDT...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT FRIDAY MORNING
FOR SOUTHEAST ARKANSAS AND NORTHEAST LOUISIANA AND WESTERN
MISSISSIPPI.
LAT...LON 3239 9200 3253 9191 3253 9185 3259 9152
3259 9148 3251 9147 3242 9148 3238 9145
3235 9150 3235 9147 3234 9147 3233 9147
3233 9201
TIME...MOT...LOC 1229Z 261DEG 34KT 3246 9167
$$
BKThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 3:31 AM CDT | Special Weather Statement | JAN | Morehouse, West Carroll | 69 min |
| Apr 15, 4:21 AM CDT | Severe Thunderstorm Warning | JAN | Morehouse, Richland, West Carroll | 54 min |
| Apr 15, 5:14 AM CDT | Severe Thunderstorm Warning | JAN | East Carroll, Morehouse, Richland, West Carroll | 61 min |
| Apr 15, 6:11 AM CDT | Severe Thunderstorm Warning | JAN | East Carroll, Morehouse, West Carroll | 34 min |
| Apr 15, 6:20 AM CDT | Tornado Warning | JAN | East Carroll | 25 min |
| Apr 15, 6:34 AM CDT | Severe Thunderstorm Warning | JAN | Richland | 41 min |
| Apr 15, 6:46 AM CDT | Severe Thunderstorm Warning | JAN | East Carroll, Morehouse, West Carroll | 59 min |
| Apr 15, 7:42 AM CDT | Severe Thunderstorm Warning | JAN | East Carroll, Madison, West Carroll | 63 min |
| Apr 15, 8:06 AM CDT | Severe Thunderstorm Warning | JAN | Catahoula, Franklin | 54 min |
| Apr 15, 8:27 AM CDT | Tornado Warning | JAN | Catahoula, Franklin | 16 min |
| Apr 15, 9:08 AM CDT | Severe Thunderstorm Warning | JAN | Franklin, Madison, Tensas | 67 min |
| Apr 15, 9:32 AM CDT | Severe Thunderstorm Warning | JAN | Catahoula, Concordia | 58 min |
| Apr 15, 1:26 PM CDT | Severe Thunderstorm Warning | JAN | Concordia | 64 min |
| Apr 15, 2:17 PM CDT | Severe Thunderstorm Warning | JAN | Concordia | 58 min |
Nearby
Tornado Warnings in Louisiana, 2011Every tornado warning in 2011Tornadoes in 2011
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.