Alert archive / Louisiana / Tornado Warnings in 1998
Tornado Warning 22, NWS Lake Charles, LA
NWS Lake Charles, LA issued this tornado warning at Sep 11, 1998, 10:53 AM CDT for Jefferson Davis Parish, Louisiana. It was in force for 47 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
- Sep 11, 1998, 10:53 AM CDT (15:53 UTC)
- Expired
- Sep 11, 1998, 11:40 AM CDT
- In force
- 47 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
County Jefferson Davis Parish, LA
The radar
The Lake Charles radar (KLCH), 42 km from the middle of the area, began a volume at 15:55 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 |
|---|---|---|---|
| Sep 11, 10:55 AM CDT | Tornado F1 | Lake Arthur, LA |
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 |
|---|---|---|---|
| Sep 11, 4:30 AM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 3.9 hours before the alert went out and 41 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
- 40 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 636 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 295 m²/s²
- 0-3 km storm-relative helicity
- 422 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLCH 111553 RRA TORLCH LAC053-111640- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LAKE CHARLES LA 1053 AM CDT FRI SEP 11 1998 THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A * TORNADO WARNING FOR... JEFFERSON DAVIS PARISH IN SOUTHWESTERN LOUISIANA * UNTIL 1140 AM CDT * AT 1049 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A DEVELOPING TORNADO 12 MILES SOUTH OF JENNINGS OR 4 MILES SOUTHWEST OF LAKE ARTHUR MOVING NORTH AT 35 MPH. * THE TORNADIC THUNDERSTORM WILL BE NEAR LAKE ARTHUR BY 1052 AM CDT JENNINGS BY 1105 AM CDT WELSH BY 1110 AM CDT LACASSINE BY 1113 AM CDT HATHAWAY BY 1120 AM CDT THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. AVOID WINDOWS AND DOORS. ABANDON CARS AND MOBILE HOMES FOR A STURDIER BUILDING OR GET INTO A DITCH OR CULVERT.
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 7:24 AM CDT | Tornado Warning | LCH | Cameron | 46 min |
| Sep 11, 1:49 PM CDT | Flash Flood Warning | LCH | Calcasieu, Cameron | 4 hr |
| Sep 11, 4:37 PM CDT | Flash Flood Warning | LCH | Acadia, Allen, Beauregard, Jefferson Davis | 3 hr |
| Sep 11, 4:37 PM CDT | Flash Flood Warning | LCH | Vermilion | 3 hr |
| Sep 11, 5:11 PM CDT | Tornado Warning | LCH | Acadia | 64 min |
| Sep 11, 5:42 PM CDT | Tornado Warning | LCH | Jefferson Davis | 43 min |
| Sep 11, 5:45 PM CDT | Tornado Warning | LCH | Allen, Evangeline | 65 min |
Nearby
Tornado Warnings in Louisiana, 1998Every tornado warning in 1998Tornadoes in 1998
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.