Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 44, NWS Lake Charles, LA

July 3, 2021Orange County, Texas

NWS Lake Charles, LA issued this flash flood warning at Jul 3, 2021, 5:05 PM CDT for Orange County, Texas. It was in force for 4 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: Jul 3, 2021, 5:05 PM CDT (22:05 UTC)
Expired: Jul 3, 2021, 9:00 PM CDT
In force: 4 hr
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Flood severity: None

County Orange County, TX

The radar

The Lake Charles radar (KLCH), 67 km from the middle of the area, began a volume at 22:08 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, 10.1 hours before the alert went out and 69 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: 1107 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 628 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

495 
WGUS54 KLCH 032205
FFWLCH
TXC361-040200-
/O.NEW.KLCH.FF.W.0044.210703T2205Z-210704T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
505 PM CDT Sat Jul 3 2021

The National Weather Service in Lake Charles has issued a

* Flash Flood Warning for...
  Orange County in southeastern Texas...

* Until 900 PM CDT.

* At 505 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Flash flooding is ongoing or 
  expected to begin shortly. Flooding was recently reported in Vidor.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Orange, Nederland, Vidor, Bridge City, West Orange, Mauriceville, 
  Rose City, Pine Forest, Orangefield and Pinehurst.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3024 9389 3021 9386 3012 9372 3010 9372
      3009 9373 3007 9372 3004 9375 3001 9385
      2999 9390 3000 9391 2999 9393 3002 9399
      3007 9403 3009 9409 3013 9407 3015 9411
      3018 9411 3021 9408 3024 9398

FLASH FLOOD...RADAR INDICATED

$$

Tingler

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 3:13 PM CDT	Flash Flood Warning	LCH	Orange	2 hr
Jul 3, 3:49 PM CDT	Flash Flood Warning	LCH	Orange	86 min

Nearby

Flash Flood Warnings in Texas, 2021 Every flash flood warning in 2021

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.