Alert archive / Texas / Flash Flood Warnings in 2015

Flash Flood Warning 21, NWS Lake Charles, LA

May 25, 20154 counties in Texas; Calcasieu Parish, Louisiana

NWS Lake Charles, LA issued this flash flood warning at May 25, 2015, 10:31 PM CDT for 4 counties in Texas; Calcasieu Parish, Louisiana. It was in force for 4 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: May 25, 2015, 10:31 PM CDT (03:31 UTC)
Expired: May 26, 2015, 2:30 AM CDT
In force: 4 hr
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Flood severity: None

Counties Calcasieu Parish, LA, Jasper County, TX, Jefferson County, TX, Newton County, TX, Orange County, TX

The radar

The Lake Charles radar (KLCH), 74 km from the middle of the area, began a volume at 03:34 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

Time	Report	Where	Remark
May 26, 12:45 AM CDT	FLOOD	Beaumont, TX	REPORTS OF MINOR STREET FLOODING IN BEAUMONT JUST AFTER THE HEAVY RAINFALL.

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 00:00Z, 3.5 hours before the alert went out and 76 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: 3112 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 820 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 184 m²/s²
Significant tornado parameter: 2.7
Supercell composite: 16.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

668 
WGUS54 KLCH 260331
FFWLCH
LAC019-TXC241-245-351-361-260730-
/O.NEW.KLCH.FF.W.0021.150526T0331Z-150526T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1031 PM CDT MON MAY 25 2015

THE NATIONAL WEATHER SERVICE IN LAKE CHARLES  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CALCASIEU PARISH IN SOUTHWESTERN LOUISIANA...
  ORANGE COUNTY IN SOUTHEASTERN TEXAS...
  NORTHERN JEFFERSON COUNTY IN SOUTHEASTERN TEXAS...
  SOUTHEASTERN JASPER COUNTY IN SOUTHEASTERN TEXAS...
  SOUTHWESTERN NEWTON COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 230 AM CDT
    
* AT 1030 PM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO ONE INCH OF RAIN HAS
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BEAUMONT...LAKE CHARLES...PORT ARTHUR...SULPHUR...ORANGE...
  NEDERLAND...GROVES...PORT NECHES...VIDOR...BRIDGE CITY...
  WESTLAKE...WEST ORANGE...VINTON...NOME...DEWEYVILLE...MOSS BLUFF...
  LAKE CHARLES REGIONAL AIRPORT...STARKS...CENTRAL GARDENS AND
  HAMSHIRE.

ADDITIONAL RAINFALL AMOUNTS OF TWO TO FIVE INCHES ARE POSSIBLE IN 
THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3011 9443 3012 9430 3016 9428 3019 9417
      3016 9411 3043 9409 3042 9373 3040 9374
      3040 9313 3005 9306 3005 9372 3000 9377
      2999 9386 2997 9384 2985 9393 2984 9436
      2989 9436 2989 9444

$$

ERICKSON

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 8:26 PM CDT	Severe Thunderstorm Warning	LCH	Tyler	64 min
May 25, 8:32 PM CDT	Severe Thunderstorm Warning	LCH	Hardin	28 min
May 25, 8:36 PM CDT	Flash Flood Warning	LCH	Hardin, Tyler	3 hr
May 25, 8:55 PM CDT	Severe Thunderstorm Warning	LCH	Hardin	65 min
May 25, 9:06 PM CDT	Severe Thunderstorm Warning	LCH	Jasper, Newton	54 min
May 25, 9:09 PM CDT	Flash Flood Warning	LCH	Jasper, Newton	3 hr
May 25, 9:27 PM CDT	Tornado Warning	LCH	Jasper, Tyler	22 min
May 25, 9:34 PM CDT	Tornado Warning	LCH	Tyler	14 min
May 25, 9:41 PM CDT	Tornado Warning	LCH	Newton	9 min
May 25, 10:09 PM CDT	River Flood Warning	LCH	Hardin, Jefferson	12 days
May 25, 10:19 PM CDT	Severe Thunderstorm Warning	LCH	Hardin, Jasper, Jefferson, Newton, Orange	56 min
May 25, 10:59 PM CDT	Severe Thunderstorm Warning	LCH	Jefferson, Orange	31 min
May 25, 11:22 PM CDT	Flash Flood Warning	LCH	Hardin, Tyler	3 hr
May 25, 11:29 PM CDT	Severe Thunderstorm Warning	LCH	Jefferson, Orange	91 min
May 26, 12:11 AM CDT	Flash Flood Warning	LCH	Jasper, Newton	2 hr
May 26, 2:31 AM CDT	Flash Flood Warning	LCH	Hardin, Jasper, Jefferson, Newton, Orange	3 hr
May 26, 5:22 AM CDT	Special Weather Statement	LCH	Orange	23 min
May 26, 10:49 AM CDT	River Flood Warning	LCH	Jefferson, Orange	12 days
May 25, 7:43 PM CDT	Special Weather Statement	LCH	Rapides	17 min
May 25, 7:44 PM CDT	Special Weather Statement	LCH	Evangeline	46 min
May 25, 7:47 PM CDT	Special Weather Statement	LCH	Evangeline	43 min
May 25, 9:44 PM CDT	Severe Thunderstorm Warning	LCH	Beauregard, Vernon	31 min
May 25, 9:47 PM CDT	Flash Flood Warning	LCH	Beauregard, Calcasieu, Vernon	3 hr
May 25, 9:52 PM CDT	Tornado Warning	LCH	Beauregard	23 min
May 25, 9:58 PM CDT	Special Weather Statement	LCH	Avoyelles, Saint Landry, Saint Martin	62 min
May 25, 10:06 PM CDT	River Flood Warning	LCH	Allen	3 days
May 25, 11:47 PM CDT	Special Marine Warning	LCH		88 min
May 26, 12:21 AM CDT	Special Weather Statement	LCH	Lafayette, Saint Landry, Saint Martin, Vermilion	54 min
May 26, 12:58 AM CDT	Special Marine Warning	LCH		2 hr
May 26, 1:21 AM CDT	Special Weather Statement	LCH	Iberia, Saint Martin, St. Mary	84 min
May 26, 3:01 AM CDT	Special Marine Warning	LCH		119 min
May 26, 10:49 AM CDT	River Flood Warning	LCH	Vernon	71 hr

Nearby

Flash Flood Warnings in Texas, 2015 Flash Flood Warnings in Louisiana, 2015 Every flash flood warning in 2015

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.