Alert archive / Texas / Flash Flood Warnings in 2016

Flash Flood Warning 20, NWS Lake Charles, LA

April 18, 2016Jasper County, Newton County, Texas

NWS Lake Charles, LA issued this flash flood warning at Apr 18, 2016, 11:26 AM CDT for Jasper County, Newton 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 18, 2016, 11:26 AM CDT (16:26 UTC)
Expired
Apr 18, 2016, 2:30 PM CDT
In force
3 hr
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Flood severity
None

Counties Jasper County, TX, Newton County, TX

The radar

The Lake Charles radar (KLCH), 88 km from the middle of the area, began a volume at 16:25 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 18, 2:05 PM CDTFLASH FLOOD8 E Buna, TXWATER OVER FM 253

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, 4.4 hours before the alert went out and 90 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 2016-04-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 283 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2016-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 174 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
283 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
517 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
174 m²/s²
0-3 km storm-relative helicity
231 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted.

913 
WGUS54 KLCH 181626
FFWLCH
TXC241-351-181930-
/O.NEW.KLCH.FF.W.0020.160418T1626Z-160418T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1126 AM CDT MON APR 18 2016

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN JASPER COUNTY IN SOUTHEASTERN TEXAS...
  SOUTHWESTERN NEWTON COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 230 PM CDT

* AT 1122 AM CDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
  WARNED AREA. TWO TO SIX INCHES OF RAIN HAVE FALLEN.
  FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  EVADALE...CALL...BUNA...TROUT CREEK...WEISS BLUFF...WRIGHTS SETTLEMENT...
  GIST AND DEVILS POCKET.

  SOME OF THE LOCAL DRAINAGE SYSTEMS THAT ARE EXPECTED TO SEE
FLOODING...INCLUDE UT ARE NOT LIMITED TO COW BAYOU AND GUM SLOUGH.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO 3 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DELAY TRAVEL FOR A FEW HOURS UNTIL THE FLOODING RECEDES.

&&

LAT...LON 3053 9407 3057 9409 3058 9409 3061 9407
      3062 9408 3064 9405 3067 9377 3024 9378
      3024 9411 3026 9410 3026 9411 3031 9411
      3035 9408 3036 9410 3039 9410 3040 9411
      3043 9412

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 6:17 AM CDTSpecial Weather StatementLCHHardin43 min
Apr 18, 6:25 AM CDTFlash Flood WatchLCHHardin, Jasper, Newton, Tyler31 hr
Apr 18, 6:59 AM CDTSpecial Weather StatementLCHHardin46 min
Apr 18, 7:46 AM CDTAreal Flood AdvisoryLCHJefferson3 hr
Apr 18, 9:05 AM CDTAreal Flood AdvisoryLCHJefferson, Orange3 hr
Apr 18, 9:31 AM CDTRiver Flood WarningLCHJefferson, Orange25 days
Apr 18, 9:44 AM CDTFlash Flood WarningLCHJefferson3 hr
Apr 18, 10:15 AM CDTFlash Flood WarningLCHOrange3 hr
Apr 18, 10:38 AM CDTRiver Flood WarningLCHNewton, Orange58 days
Apr 18, 10:42 AM CDTSpecial Weather StatementLCHJefferson48 min
Apr 18, 11:49 AM CDTFlash Flood WarningLCHHardin3 hr
Apr 18, 1:15 PM CDTFlash Flood WarningLCHHardin, Jefferson, Orange3 hr
Apr 18, 2:22 PM CDTFlash Flood WarningLCHJasper, Newton6 hr
Apr 18, 2:32 PM CDTAreal Flood AdvisoryLCHHardin, Jasper, Newton, Tyler3 hr
Apr 18, 2:52 PM CDTAreal Flood WarningLCHHardin30 hr
Apr 18, 3:43 PM CDTRiver Flood WarningLCHHardin, Jasper9 days
Apr 18, 3:43 PM CDTRiver Flood WarningLCHHardin4 days
Apr 18, 3:43 PM CDTRiver Flood WarningLCHHardin, Jefferson11 days
Apr 18, 4:26 PM CDTFlash Flood WarningLCHOrange3 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.