Alert archive / Louisiana / Tornado Warnings in 2001
Tornado Warning 77, NWS Jackson, MS
NWS Jackson, MS issued this tornado warning at Oct 13, 2001, 7:27 AM CDT for Catahoula Parish, Concordia Parish, Louisiana. It was in force for 33 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Oct 13, 2001, 7:27 AM CDT (12:27 UTC)
- Expired
- Oct 13, 2001, 8:00 AM CDT
- In force
- 33 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Catahoula Parish, LA, Concordia Parish, LA
The radar
The Ft Polk radar (KPOE), 111 km from the middle of the area, began a volume at 12:31 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 13, 7:35 AM CDT | Thunderstorm Wind | Larto, LA | Part of a room of a house was significantly damaged. A camper trailor also was damaged. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 13, 4:00 AM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 0.5 hours before the alert went out and 194 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
- 425 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 668 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 199 m²/s²
- 0-3 km storm-relative helicity
- 247 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.7
The text
As transmitted, in the capitals the NWS used until 2016.
031 WFUS54 KJAN 131227 TORJAN LAC025-029-131300- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE JACKSON MS 727 AM CDT SAT OCT 13 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * TORNADO WARNING FOR... CATAHOULA PARISH IN NORTHEAST LOUISIANA CONCORDIA PARISH IN NORTHEAST LOUISIANA * UNTIL 800 AM CDT * AT 727 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO OVER CATAHOULA PARISH...OR ABOUT 19 MILES NORTHEAST OF MARKSVILLE...MOVING EAST AT 30 MPH. * THE TORNADO IS EXPECTED TO... REMAIN OVER RURAL CONCORDIA PARISH REMAIN OVER RURAL CATAHOULA PARISH LAT...LON 3146 9200 3129 9198 3135 9155 3164 9177
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 12, 7:14 PM CDT | Severe Thunderstorm Warning | JAN | Richland | 31 min |
| Oct 13, 2:50 AM CDT | Severe Thunderstorm Warning | JAN | Morehouse | 25 min |
| Oct 13, 7:42 AM CDT | Severe Thunderstorm Warning | JAN | Madison | 33 min |
| Oct 13, 8:07 AM CDT | Severe Thunderstorm Warning | JAN | Concordia, Tensas | 23 min |
Nearby
Tornado Warnings in Louisiana, 2001Every tornado warning in 2001Tornadoes in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.