Alert archive / Louisiana / Tornado Warnings in 1998

Tornado Warning 19, NWS Lake Charles, LA

April 27, 1998Avoyelles Parish, Louisiana

NWS Lake Charles, LA issued this tornado warning at Apr 27, 1998, 11:14 PM CDT for Avoyelles Parish, Louisiana. It was in force for 46 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: Apr 27, 1998, 11:14 PM CDT (04:14 UTC)
Expired: Apr 28, 1998, 12:00 AM CDT
In force: 46 min
Issued by: NWS Lake Charles, LA
Area: Whole counties

County Avoyelles Parish, LA

What was reported inside it

Time	Report	Where	Remark
Apr 27, 11:30 PM CDT	Thunderstorm Wind	Marksville, 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 nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 4.2 hours before the alert went out and 156 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1649 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 573 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 156 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

675 
WFUS1 KLCH 280417 RRA
TORLCH
LAC009-280500-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1114 PM CDT MON APR 27 1998

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* TORNADO WARNING FOR...
  AVOYELLES PARISH IN EAST CENTRAL LOUISIANA

* UNTIL 1200 AM CDT

* AT 1113 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED A TORNADO 6 MILES WEST OF MARKSVILLE MOVING EAST AT 35
  MPH.

* TORNADO WILL BE NEAR
  MARKSVILLE BY 1120 PM CDT
  MANSURA BY 1120 PM CDT
  MOREAUVILLE BY 1125 PM CDT
  HAMBURG BY 1130 PM CDT
  BORDELONVILLE BY 1130 PM CDT



TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT BECAUSE THEY ARE
HARD TO SEE. TAKE COVER NOW. SEEK REFUGE IN A SMALL INTERIOR
ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. YOU MAY ONLY HAVE
A FEW SECONDS.  ABANDON CARS AND MOBILE HOMES FOR A STRONG
BUILDING.

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 27, 10:09 PM CDT	Severe Thunderstorm Warning	LCH	Rapides	61 min
Apr 27, 11:02 PM CDT	Severe Thunderstorm Warning	LCH	Avoyelles	43 min
Apr 27, 11:26 PM CDT	Severe Thunderstorm Warning	LCH	Calcasieu, Cameron	59 min
Apr 27, 11:40 PM CDT	Severe Thunderstorm Warning	LCH	Allen, Evangeline	60 min
Apr 28, 12:03 AM CDT	Severe Thunderstorm Warning	LCH	Avoyelles	57 min
Apr 28, 1:30 AM CDT	Tornado Warning	LCH	Vermilion	65 min

Nearby

Tornado Warnings in Louisiana, 1998 Every tornado warning in 1998 Tornadoes 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.