Alert archive / Texas / Flash Flood Warnings in 2017
Flash Flood Warning 48, NWS Lake Charles, LA
NWS Lake Charles, LA issued this flash flood warning at Aug 7, 2017, 12:11 PM CDT for Jefferson County, Texas. It was in force for 2 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
- Aug 7, 2017, 12:11 PM CDT (17:11 UTC)
- Expired
- Aug 7, 2017, 2:15 PM CDT
- In force
- 2 hr
- Issued by
- NWS Lake Charles, LA
- Area
- Storm-based polygon
- Flood severity
- None
County Jefferson County, TX
The radar
The Lake Charles radar (KLCH), 98 km from the middle of the area, began a volume at 17:12 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 |
|---|---|---|---|
| Aug 7, 12:14 PM CDT | FLASH FLOOD | 5 Ese Sour Lake, TX | LAW ENFORCEMENT REPORTED WATER OVER OLD SOUR LAKE RD. |
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, 5.2 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.
- Mixed-layer CAPE
- 1620 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 946 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted.
230
WGUS54 KLCH 071711
FFWLCH
TXC245-071915-
/O.NEW.KLCH.FF.W.0048.170807T1711Z-170807T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
1211 PM CDT MON AUG 7 2017
The National Weather Service in Lake Charles has issued a
* Flash Flood Warning for...
Northwestern Jefferson County in southeastern Texas...
* Until 215 PM CDT
* At 1210 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. 4 to 5 inches of rain have
already fallen, with another 1 to 2 inches possible. Flash
flooding is expected to begin shortly.
* Some locations that will experience flooding include...
Beaumont, Bevil Oaks and China.
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 3009 9439 3012 9430 3014 9428 3016 9428
3017 9427 3017 9422 3018 9421 3019 9421
3018 9419 3019 9418 3017 9417 3015 9411
3015 9410 2996 9429
$$
RACKLEYThe office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 10:58 AM CDT | Areal Flood Advisory | LCH | Jefferson | 2 hr |
| Aug 7, 2:40 PM CDT | Flash Flood Warning | LCH | Jefferson | 2 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.