Alert archive / Louisiana / Flash Flood Warnings in 1997

Flash Flood Warning 4, NWS Lake Charles, LA

April 27, 1997Iberia Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Apr 27, 1997, 11:50 AM CDT for Iberia Parish, Louisiana. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 27, 1997, 11:50 AM CDT (16:50 UTC)
Expired: Apr 27, 1997, 5:45 PM CDT
In force: 6 hr
Issued by: NWS Lake Charles, LA
Area: Whole counties

County Iberia Parish, LA

The radar

The Lake Charles radar (KLCH), 149 km from the middle of the area, began a volume at 16:54 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.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 4.8 hours before the alert went out and 147 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: 24 J/kg
Mixed-layer CIN: -230 J/kg
Mixed-layer LCL: 494 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLCH 271656 COR
FFWLCH
LAC045-272245-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1150 AM CDT SUN APR 27 1997

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  545 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTH CENTRAL LOUISIANA

   ...IBERIA PARISH

AT 1150 AM...THE NEW IBERIA POLICE DEPARTMENT CONTINUES TO REPORT
MAJOR STREET FLOODING AND WATER IN HOMES. MOTORISTS ARE WARNED NOT
TO VENTURE OUT IN IBERIA PARISH AS NUMEROUS ROADS ARE CLOSED. ALSO...
THE WAVE ACTION CREATED BY DRIVING THROUGH THE WATER MAY CAUSE
ADDITIONAL WATER TO ENTER HOMES. RESIDENTS SHOULD TAKE ALL NECESSARY
ACTION TO PROTECT LIFE AND PROPERTY.

ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS IS EXPECTED THIS AFTERNOON.
ANY ADDITIONAL RAINFALL WILL FURTHER WORSEN THE SITUATION.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT fTO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 10:07 PM CDT	Severe Thunderstorm Warning	LCH	Vermilion	53 min
Apr 26, 10:26 PM CDT	Severe Thunderstorm Warning	LCH	Saint Martin	49 min
Apr 26, 11:36 PM CDT	Severe Thunderstorm Warning	LCH	Lafayette	54 min
Apr 27, 5:07 AM CDT	Severe Thunderstorm Warning	LCH	Acadia	38 min
Apr 27, 7:07 AM CDT	Severe Thunderstorm Warning	LCH	Iberia	23 min
Apr 27, 9:33 AM CDT	Flash Flood Warning	LCH	Iberia	117 min

Nearby

Flash Flood Warnings in Louisiana, 1997 Every flash flood warning in 1997

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; radar from the NEXRAD Level II archive.