Alert archive / Louisiana / Tornado Warnings in 2003
Tornado Warning 37, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Nov 17, 2003, 9:57 PM CST for Natchitoches Parish, Winn Parish, Louisiana. It was in force for 48 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
- Nov 17, 2003, 9:57 PM CST (03:57 UTC)
- Expired
- Nov 17, 2003, 10:45 PM CST
- In force
- 48 min
- Issued by
- NWS Shreveport, LA
- Area
- Counties, with a storm outline in the text
Counties Natchitoches Parish, LA, Winn Parish, LA
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 17, 9:25 PM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 4.0 hours before the alert went out and 98 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
- 512 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 515 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 231 m²/s²
- 0-3 km storm-relative helicity
- 284 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS54 KSHV 180357 TORSHV LAC069-127-180445- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 956 PM CST MON NOV 17 2003 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A * TORNADO WARNING FOR... WINN PARISH IN NORTH CENTRAL LOUISIANA NATCHITOCHES PARISH IN NORTHWEST LOUISIANA * UNTIL 1045 PM CST * AT 956 PM CST...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 11 MILES WEST OF NATCHEZ...OR ABOUT 12 MILES SOUTHWEST OF NATCHITOCHES...MOVING NORTHEAST AT 40 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... 9 MILES SOUTHEAST OF CAMPTI AT 1005 PM CST THIS THUNDERSTORM CAN PRODUCE A TORNADO THAT IS OBSCURED BY RAIN... AND DIFFICULT TO SEE. 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... WINN PARISH IN NORTH CENTRAL LOUISIANA NATCHITOCHES PARISH IN NORTHWEST LOUISIANA UNTIL 1045 PM CST. LAT...LON 3170 9329 3157 9314 3192 9274 3211 9298 $$
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 17, 9:12 PM CST | Flash Flood Warning | SHV | De Soto | 6 hr |
| Nov 17, 10:34 PM CST | Tornado Warning | SHV | Sabine | 41 min |
| Nov 18, 12:24 AM CST | Severe Thunderstorm Warning | SHV | Bienville | 51 min |
| Nov 18, 1:01 AM CST | Severe Thunderstorm Warning | SHV | Natchitoches | 29 min |
| Nov 18, 3:05 AM CST | Severe Thunderstorm Warning | SHV | LaSalle | 40 min |
Nearby
Tornado Warnings in Louisiana, 2003Every tornado warning in 2003Tornadoes in 2003
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.