Alert archive / Texas / Flash Flood Warnings in 2016

Flash Flood Warning 36, NWS Lake Charles, LA

April 30, 2016Jasper County, Newton County, Texas

NWS Lake Charles, LA issued this flash flood warning at Apr 30, 2016, 8:58 AM CDT for Jasper County, Newton County, Texas. It was in force for 92 min. 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 30, 2016, 8:58 AM CDT (13:58 UTC)
Expired: Apr 30, 2016, 10:30 AM CDT
In force: 92 min
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), 85 km from the middle of the area, began a volume at 13:56 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, 2.0 hours before the alert went out and 87 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: 1273 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 690 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 249 m²/s²
0-3 km storm-relative helicity: 295 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 9.9

Open this sounding in Storm Lab

The text

As transmitted.

511 
WGUS54 KLCH 301358
FFWLCH
TXC241-351-301530-
/O.NEW.KLCH.FF.W.0036.160430T1358Z-160430T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
858 AM CDT SAT APR 30 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 1030 AM CDT

* AT 855 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  NEWTON...KIRBYVILLE...EVADALE...CALL...DEWEYVILLE...BUNA...ROGANVILLE...
  MT. UNION...GIST...MAGNOLIA SPRINGS...DEVILS POCKET...OLD SALEM...TROUT
  CREEK...WEISS BLUFF...WRIGHTS SETTLEMENT AND BLEAKWOOD.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE
WARNED AREA THROUGH 1030 AM. ANOTHER WARNING WILL BE ISSUED SHORTLY
WITHIN AN HOUR TO COMBINE THIS WARNING WITH HARDIN COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERAL SMALL STREAMS ARE ALREADY LIKELY FLOODING...DELAY TRAVEL IF
POSSIBLE THIS MORNING.

&&

LAT...LON 3089 9369 3059 9371 3054 9374 3043 9372
      3034 9376 3028 9373 3024 9412 3025 9410
      3026 9410 3030 9412 3034 9408 3043 9412
      3053 9407 3058 9409 3064 9405 3069 9409
      3069 9413 3078 9414 3079 9417

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 8:24 PM CDT	River Flood Warning	LCH	Hardin, Jefferson	6 days
Apr 30, 4:04 AM CDT	Special Weather Statement	LCH	Tyler	41 min
Apr 30, 4:42 AM CDT	Areal Flood Advisory	LCH	Jasper, Tyler	3 hr
Apr 30, 4:51 AM CDT	Special Weather Statement	LCH	Hardin, Tyler	39 min
Apr 30, 5:24 AM CDT	Areal Flood Advisory	LCH	Hardin, Jasper, Tyler	3 hr
Apr 30, 5:43 AM CDT	Special Weather Statement	LCH	Hardin, Jasper, Newton	47 min
Apr 30, 6:08 AM CDT	Severe Thunderstorm Warning	LCH	Hardin, Jasper, Newton, Tyler	37 min
Apr 30, 6:10 AM CDT	Tornado Warning	LCH	Jasper, Newton	35 min
Apr 30, 6:44 AM CDT	Severe Thunderstorm Warning	LCH	Newton	61 min
Apr 30, 7:03 AM CDT	Flash Flood Warning	LCH	Hardin, Tyler	3 hr
Apr 30, 7:18 AM CDT	Areal Flood Advisory	LCH	Jasper, Newton, Orange	3 hr
Apr 30, 9:21 AM CDT	River Flood Warning	LCH	Newton	12 days
Apr 30, 9:40 AM CDT	River Flood Warning	LCH	Hardin	63 hr
Apr 30, 9:55 AM CDT	Flash Flood Warning	LCH	Hardin, Jasper, Newton, Tyler	5 hr

Nearby

Flash Flood Warnings in Texas, 2016 Every 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.