Alert archive / Texas / Flash Flood Warnings in 2016

Flash Flood Warning 33, NWS Lake Charles, LA

April 21, 2016Hardin County, Jefferson County, Texas

NWS Lake Charles, LA issued this flash flood warning at Apr 21, 2016, 12:00 PM CDT for Hardin County, Jefferson County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 21, 2016, 12:00 PM CDT (17:00 UTC)
Expired
Apr 21, 2016, 3:00 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 Lake Charles radar (KLCH), 96 km from the middle of the area, began a volume at 16:59 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, 5.0 hours before the alert went out and 98 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, Lake Charles Mun, LA at 12:00Z on 2016-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 574 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, Lake Charles Mun, LA at 12:00Z on 2016-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.193958Sfc1 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
574 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
655 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

897 
WGUS54 KLCH 211700
FFWLCH
TXC199-245-212000-
/O.NEW.KLCH.FF.W.0033.160421T1700Z-160421T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1200 PM CDT THU APR 21 2016

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 300 PM CDT

* AT 1156 AM CDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
  HEAVY RAIN FALLING ACROSS THE WARNED AREA. UP TO THREE INCHES OF
  RAIN HAVE ALREADY FALLEN ALONG PINE ISLAND BAYOU IN NORTHWEST
  JEFFERSON AND SOUTHWEST HARDIN COUNTIES. FLASH FLOODING IS
  EXPECTED TO BEGIN SHORTLY. THIS ACTIVITY IS MOVING SLOWLY EAST
  ACROSS BEAUMONT.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BEAUMONT...LUMBERTON...SILSBEE...KOUNTZE...SOUR LAKE...NOME...SARATOGA...
  BEVIL OAKS AND CHINA.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO THREE INCHES ARE POSSIBLE IN
THE WARNED AREA.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...WALKER BRANCH...
BOGGY CREEK...WILLOW MARSH BAYOU... LITTLE PINE ISLAND
BAYOU...CYPRESS CREEK...BLACK CREEK...MILL CREEK... COTTON
CREEK...DRY CREEK...WILLOW CREEK...PINE ISLAND BAYOU.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

&&

LAT...LON 3034 9453 3045 9415 3025 9411 3024 9412
      3022 9412 3020 9410 3019 9411 3016 9412
      3015 9410 3014 9411 3013 9408 3011 9408
      3008 9409 3007 9407 3002 9444 3011 9445
      3011 9455

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 8:48 PM CDTRiver Flood WarningLCHJasper, Tyler4 days
Apr 21, 10:43 AM CDTSpecial Weather StatementLCHHardin, Jasper, Tyler62 min
Apr 21, 11:18 AM CDTAreal Flood AdvisoryLCHHardin, Jefferson, Tyler3 hr
Apr 21, 11:43 AM CDTAreal Flood AdvisoryLCHJasper, Orange3 hr
Apr 21, 11:44 AM CDTSpecial Weather StatementLCHJasper, Newton, Orange61 min
Apr 21, 12:31 PM CDTSpecial Weather StatementLCHJefferson59 min
Apr 21, 12:33 PM CDTAreal Flood AdvisoryLCHNewton, Orange4 hr
Apr 21, 2:43 PM CDTAreal Flood WarningLCHHardin3 days
Apr 21, 3:54 PM CDTAreal Flood WarningLCHJasper, Newton, Orange24 hr

Nearby

Flash Flood Warnings in Texas, 2016Every flash flood warning in 2016

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.