Alert archive / Texas / Flash Flood Warnings in 2015

Flash Flood Warning 13, NWS Lake Charles, LA

April 16, 2015Hardin County, Jefferson County, Texas

NWS Lake Charles, LA issued this flash flood warning at Apr 16, 2015, 7:00 PM CDT for Hardin County, Jefferson County, Texas. 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
Apr 16, 2015, 7:00 PM CDT (00:00 UTC)
Expired
Apr 16, 2015, 10:00 PM CDT
In force
3 hr
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Flood severity
None

Counties Hardin County, TX, Jefferson County, TX

The radar

The Houston radar (KHGX), 97 km from the middle of the area, began a volume at 00:04 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

TimeReportWhereRemark
Apr 16, 9:30 PM CDTFLASH FLOOD4 E Sour Lake, TXNWS EMPLOYEE REPORTS FLOODING OFF OF STATE HIGHWAY 105 BETWEEN BEVIL OAKS AND SOUR LAKE. TIME ESTIMATED FROM RADAR.

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

The nearest sounding before it

Shreveport, LA (KBAD), launched 00:00Z, 0.0 hours before the alert went out and 272 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-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 2015-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 479 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2015-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -94 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
479 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
983 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-94 m²/s²
0-3 km storm-relative helicity
-91 m²/s²
Significant tornado parameter
-0.1
Supercell composite
-1.6

Open this sounding in Storm Lab

The text

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

072 
WGUS54 KLCH 170000
FFWLCH
TXC199-245-170300-
/O.NEW.KLCH.FF.W.0013.150417T0000Z-150417T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
700 PM CDT THU APR 16 2015

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN JEFFERSON COUNTY IN SOUTHEASTERN TEXAS...
  CENTRAL HARDIN COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 1000 PM CDT
    
* AT 659 PM CDT...DOPPLER RADAR INDICATED CLUSTERS OF THUNDERSTORMS 
  PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS 
  EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  KOUNTZE...NOME...BEVIL OAKS AND CHINA. 

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3012 9444 3011 9439 3012 9436 3053 9434
      3053 9426 2996 9423 2987 9434 2987 9436
      2989 9436 2989 9443 3004 9445

$$

RUA

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 7:50 PM CDTSevere Thunderstorm WarningLCHJefferson, Orange40 min
Apr 16, 8:33 PM CDTSpecial Weather StatementLCHOrange57 min
Apr 16, 9:59 PM CDTFlash Flood WarningLCHHardin, Jasper, Jefferson, Newton, Orange3 hr
Apr 17, 2:39 AM CDTRiver Flood WarningLCHHardin, Jefferson9 days
Apr 17, 10:31 AM CDTRiver Flood WarningLCHJefferson, Orange9 days

Nearby

Flash Flood Warnings in Texas, 2015Every flash flood warning in 2015

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.