Alert archive / Texas / Flash Flood Warnings in 2016

Flash Flood Warning 25, NWS Lake Charles, LA

April 19, 2016Jasper County, Newton County, Texas

NWS Lake Charles, LA issued this flash flood warning at Apr 19, 2016, 3:40 PM CDT for Jasper County, Newton 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 19, 2016, 3:40 PM CDT (20:40 UTC)
Expired
Apr 19, 2016, 6:45 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 Ft Polk radar (KPOE), 89 km from the middle of the area, began a volume at 20:43 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, 8.7 hours before the alert went out and 129 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 2016-04-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 507 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 2016-04-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 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
507 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
529 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

744 
WGUS54 KLCH 192040
FFWLCH
TXC241-351-192345-
/O.NEW.KLCH.FF.W.0025.160419T2040Z-160419T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
340 PM CDT TUE APR 19 2016

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES  HAS ISSUED A

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

* UNTIL 645 PM CDT

* AT 337 PM CDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE WARNED
  AREA. UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN. FLASH
  FLOODING IS LIKELY ALREADY OCCURING.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BROWNDELL.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...SANDY BRANCH...
BELCHER CREEK...BIG COW CREEK...AND SANDY CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

&&

LAT...LON 3105 9385 3105 9397 3114 9403 3116 9391
      3116 9386

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 7:39 PM CDTAreal Flood WarningLCHOrange12 hr
Apr 18, 8:14 PM CDTAreal Flood WarningLCHJasper, Newton12 hr
Apr 18, 10:18 PM CDTCoastal Flood WarningLCH9 hr
Apr 19, 7:32 AM CDTAreal Flood WarningLCHOrange6 hr
Apr 19, 1:16 PM CDTAreal Flood WarningLCHOrange24 hr
Apr 19, 4:42 PM CDTFlash Flood WarningLCHHardin4 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.