Alert archive / Louisiana / Tornado Warnings in 2001
Tornado Warning 18, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Nov 26, 2001, 11:58 PM CST for Natchitoches Parish, Louisiana. It was in force for 32 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Nov 26, 2001, 11:58 PM CST (05:58 UTC)
- Expired
- Nov 27, 2001, 12:30 AM CST
- In force
- 32 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Natchitoches Parish, LA
The radar
The Ft Polk radar (KPOE), 64 km from the middle of the area, began a volume at 05:57 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 |
|---|---|---|---|
| Nov 27, 12:01 AM CST | Tornado F1 | Campti, LA | Damage was confined to mostly trees and tree limbs. This tornado may have been a satellite tornado to the tornado directly to the north at the same time. |
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 |
|---|---|---|---|
| Nov 26, 11:00 PM CST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 6.0 hours before the alert went out and 104 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
- 701 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 873 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.9
The text
As transmitted, in the capitals the NWS used until 2016.
857 WFUS54 KSHV 270558 TORSHV LAC069-270630- /NEW.KSHV.TO.W.0018.270558-270630/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 1158 PM CST MON NOV 26 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * TORNADO WARNING FOR... NATCHITOCHES PARISH IN NORTHWEST LOUISIANA * UNTIL 1230 AM CST * AT 1158 PM CST...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO OVER CAMPTI...OR ABOUT 10 MILES NORTHWEST OF NATCHITOCHES...MOVING NORTHEAST AT 20 MPH. IF YOU ARE IN A MOBILE HOME...ABANDON IT FOR A STURDY BUILDING...OR GET IN A DITCH OR CULVERT. REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING FOR... NATCHITOCHES PARISH IN NORTHWEST LOUISIANA UNTIL 1230 AM CST.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 26, 8:22 PM CST | Severe Thunderstorm Warning | SHV | Caddo | 53 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.