Alert archive / Texas / Flash Flood Warnings in 2017

Flash Flood Warning 5, NWS Lake Charles, LA

April 2, 20174 counties in Texas

NWS Lake Charles, LA issued this flash flood warning at Apr 2, 2017, 3:46 PM CDT for 4 counties in Texas. It was in force for 6 hr. 2 reports 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 2, 2017, 3:46 PM CDT (20:46 UTC)
Expired
Apr 2, 2017, 9:45 PM CDT
In force
6 hr
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Flood severity
None

Counties Hardin County, TX, Jasper County, TX, Newton County, TX, Tyler County, TX

The radar

The Lake Charles radar (KLCH), 98 km from the middle of the area, began a volume at 20:50 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 2, 7:36 PM CDTFLASH FLOOD8 Nne Sour Lake, TXSTREAM GAUGE SHOWS FLASH FLOODING ON BLACK CREEK.
Apr 2, 8:43 PM CDTFLASH FLOOD2 W Kountze, TXWATER OVER FM 1293 WEST OF KOUNTZE

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, 8.8 hours before the alert went out and 100 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 2017-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2197 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 2017-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 243 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
2197 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
489 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
243 m²/s²
0-3 km storm-relative helicity
317 m²/s²
Significant tornado parameter
3.3
Supercell composite
19.3

Open this sounding in Storm Lab

The text

As transmitted.

327 
WGUS54 KLCH 022046
FFWLCH
TXC199-241-351-457-030245-
/O.NEW.KLCH.FF.W.0005.170402T2046Z-170403T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
346 PM CDT SUN APR 2 2017

The National Weather Service in Lake Charles has issued a

* Flash Flood Warning for...
  Southeastern Tyler County in southeastern Texas...
  Northern Newton County in southeastern Texas...
  Central Hardin County in southeastern Texas...
  Southeastern Jasper County in southeastern Texas...

* Until 945 PM CDT

* At 346 PM 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...
  Beaumont, Lumberton, Jasper, Silsbee, Newton, Kirbyville, Kountze,
  Sour Lake, Fred, Burkeville, Bevil Oaks, Caney Head, Farrsville,
  Magnolia Springs, Mayflower, Mt. Union, Jamestown, Roganville,
  Harrisburg and Wiergate.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3115 9385 3112 9354 3110 9356 3108 9355
      3012 9430 3010 9439 3013 9457

$$

JB
1 follow-up statement
892 
WGUS74 KLCH 030052
FFSLCH

Flash Flood Statement
National Weather Service Lake Charles LA
752 PM CDT SUN APR 2 2017

TXC199-241-351-457-030245-
/O.CON.KLCH.FF.W.0005.000000T0000Z-170403T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Tyler TX-Newton TX-Hardin TX-Jasper TX-
752 PM CDT SUN APR 2 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
SOUTHEASTERN TYLER...NORTHERN NEWTON...CENTRAL HARDIN AND
SOUTHEASTERN JASPER COUNTIES...

At 750 PM CDT, Doppler radar indicated heavy rain has fallen across 
the warned area. Radar and gauge reports indicate 4 to 8 inches of 
rain have fallen. Flash flooding is already occurring along some of 
the area creeks.

Some locations that will experience flooding include...
Beaumont, Lumberton, Jasper, Silsbee, Newton, Kirbyville, Kountze,
Sour Lake, Fred, Burkeville, Bevil Oaks, Caney Head, Farrsville,
Magnolia Springs, Mayflower, Mt. Union, Jamestown, Roganville,
Harrisburg and Wiergate.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3115 9385 3112 9354 3110 9356 3108 9355
      3012 9430 3010 9439 3013 9457

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 7:56 AM CDTSpecial Weather StatementLCHJasper34 min
Apr 2, 2:42 PM CDTSevere Thunderstorm WarningLCHJasper, Newton, Tyler63 min
Apr 2, 3:25 PM CDTSevere Thunderstorm WarningLCHNewton50 min
Apr 2, 4:37 PM CDTFlash Flood WarningLCHNewton6 hr
Apr 2, 4:39 PM CDTSpecial Weather StatementLCHJasper, Newton51 min
Apr 2, 5:16 PM CDTSpecial Weather StatementLCHJasper, Newton59 min
Apr 2, 6:01 PM CDTSpecial Weather StatementLCHJasper, Newton59 min
Apr 2, 6:21 PM CDTSpecial Weather StatementLCHNewton39 min
Apr 2, 6:42 PM CDTFlash Flood WarningLCHJasper, Newton6 hr

Nearby

Flash Flood Warnings in Texas, 2017Every flash flood warning in 2017

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.