Alert archive / Louisiana / Flash Flood Warnings in 2007

Flash Flood Warning 9, NWS Lake Charles, LA

September 13, 2007Beauregard Parish, Vernon Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at Sep 13, 2007, 9:59 AM CDT for Beauregard Parish, Vernon 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: Sep 13, 2007, 9:59 AM CDT (14:59 UTC)
Expired: Sep 13, 2007, 1:00 PM CDT
In force: 3 hr
Issued by: NWS Lake Charles, LA
Area: Counties, with a storm outline in the text
Flood severity: None

Counties Beauregard Parish, LA, Vernon Parish, LA

What was reported inside it

Time	Report	Where	Remark
Sep 13, 11:12 AM CDT	FLASH FLOOD	Deridder, LA	HIGHWAY 171 JUST NORTH OF DERIDDER IS CLOSED DUE TO HIGH WATER. OTHER NUMEROUS ROADS IN THE CITY OF DERIDDER ARE BEING COVERED BY WATER.

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, 3.0 hours before the alert went out and 86 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: 557 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 516 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 255 m²/s²
0-3 km storm-relative helicity: 283 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KLCH 131501
FFWLCH
LAC011-115-131800-
/X.NEW.KLCH.FF.W.0009.070913T1459Z-070913T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
959 AM CDT THU SEP 13 2007

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BEAUREGARD PARISH IN SOUTHWEST LOUISIANA...
  THIS INCLUDES THE CITIES OF...SUGARTOWN...SINGER...MERRYVILLE...DRY
  CREEK...DE RIDDER...
  VERNON PARISH IN WEST CENTRAL LOUISIANA...
  THIS INCLUDES THE CITIES OF...SLAGLE...ROSEPINE...PITKIN...
  LEESVILLE...FORT POLK...ANACOCO...

* UNTIL 100 PM CDT

* AT 956 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEW LLANO

3 TO 5 INCHES OF RAINFALL HAS OCCURED OVER PARTS OF THE WARNED AREA. 
AN ADDITIONAL 2 TO 4 INCHES IS POSSIBLE THROUGH 1 PM.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

LAT...LON 3053 9366 3052 9315 3063 9316 3063 9301
      3090 9299 3091 9284 3125 9283 3134 9296
      3134 9334 3120 9349 3092 9350

$$

06

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 12, 10:44 PM CDT	River Flood Warning	LCH	Calcasieu	22 hr
Sep 12, 10:44 PM CDT	River Flood Warning	LCH	Calcasieu	22 hr
Sep 12, 10:56 PM CDT	Inland Tropical Storm Warning	LCH	Allen, Beauregard, Rapides, Vernon	14 hr
Sep 13, 12:59 AM CDT	Inland Hurricane Warning	LCH		5 hr
Sep 13, 2:12 AM CDT	Flash Flood Warning	LCH	Calcasieu, Cameron, Jefferson Davis, Vermilion	4 hr
Sep 13, 2:16 AM CDT	Flash Flood Warning	LCH	Acadia, Jefferson Davis	4 hr
Sep 13, 4:15 AM CDT	Tornado Warning	LCH	Vermilion	30 min
Sep 13, 4:56 AM CDT	Flash Flood Warning	LCH	Acadia, Lafayette, Saint Landry, Vermilion	4 hr
Sep 13, 6:04 AM CDT	Flash Flood Warning	LCH	Beauregard	4 hr
Sep 13, 6:13 AM CDT	Flash Flood Warning	LCH	Calcasieu, Jefferson Davis	4 hr
Sep 13, 9:29 AM CDT	River Flood Warning	LCH	Rapides	4 days
Sep 13, 9:29 AM CDT	River Flood Warning	LCH	Calcasieu	11 hr
Sep 13, 9:29 AM CDT	River Flood Warning	LCH	Beauregard, Calcasieu	6 days
Sep 13, 12:49 PM CDT	Lake Wind Advisory	LCH	Allen, Avoyelles, Beauregard, Evangeline, Lafayette, Rapides and 3 more	3 hr
Sep 13, 1:41 PM CDT	Coastal Flood Warning	LCH	Saint Martin	2 hr

Nearby

Flash Flood Warnings in Louisiana, 2007 Every flash flood warning in 2007

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.