Alert archive / Louisiana / Flash Flood Warnings in 2005

Flash Flood Warning 4, NWS Lake Charles, LA

July 12, 2005Lafayette Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Jul 12, 2005, 3:45 PM CDT for Lafayette Parish, Louisiana. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 12, 2005, 3:45 PM CDT (20:45 UTC)
Expired: Jul 12, 2005, 6:45 PM CDT
In force: 3 hr
Issued by: NWS Lake Charles, LA
Area: Counties, with a storm outline in the text

County Lafayette Parish, LA

The radar

The Lake Charles radar (KLCH), 118 km from the middle of the area, began a volume at 20:45 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
Jul 12, 5:00 PM CDT	FLASH FLOOD	Youngsville, LA	KATC TV REPORTED 5.5 INCHES IN 1 1/2 HOURS FROM A YOUNGSVILLE VIEWER.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.8 hours before the alert went out and 116 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: 1251 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 836 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -36 m²/s²
0-3 km storm-relative helicity: -18 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KLCH 122047
FFWLCH
LAC055-122345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
345 PM CDT TUE JUL 12 2005

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LAFAYETTE PARISH IN SOUTH CENTRAL LOUISIANA

* UNTIL 645 PM CDT

* AT 340 PM CDT...VERY HEAVY RAIN WAS REPORTED FROM A THUNDERSTORM
  OVER YOUNGSVILLE.  THE STORM PRODUCING VERY HEAVY RAIN WAS NEARLY
  STATIONARY. RADAR INDICATES NEARLY FOUR INCHES OF RAIN HAS FALLEN 
  NEAR YOUNGSVILLE DURING THE PAST THREE HOURS...AND TWO TO 
  THREE INCHES OF RAIN WILL BE POSSIBLE OVER THE NEXT THREE HOURS.

* THIS STORM WILL BE NEAR...
  YOUNGSVILLE BY 445 PM CDT
  BROUSSARD BY 615 PM CDT

DURING HEAVY RAINS...STAY AWAY FROM DRAINAGE DITCHES...BAYOUS AND
CREEKS. THEY ARE PRONE TO RAPID RISES AND MAY FLOOD THE AREA QUICKLY.

CALL 337-477-5285 TO REPORT FLOODING TO THE WEATHER SERVICE.

LAT...LON 3011 9207 3005 9197 3010 9190 3018 9196

$$

Nearby

Flash Flood Warnings in Louisiana, 2005 Every flash flood warning in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.