Alert archive / Texas / Flash Flood Warnings in 2012
Flash Flood Warning 17, NWS Lake Charles, LA
NWS Lake Charles, LA issued this flash flood warning at Mar 20, 2012, 12:56 PM CDT for Jefferson County, Texas. It was in force for 3 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
- Mar 20, 2012, 12:56 PM CDT (17:56 UTC)
- Expired
- Mar 20, 2012, 4:00 PM CDT
- In force
- 3 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), 95 km from the middle of the area, began a volume at 17:59 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 |
|---|---|---|---|
| Mar 20, 1:35 PM CDT | FLASH FLOOD | Beaumont, TX | KBMT REPORTS VIA FACEBOOK PARK ST NEAR COLLEGE ST CLOSED DUE TO FLOODING. |
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, 5.9 hours before the alert went out and 97 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
- 1368 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 555 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 225 m²/s²
- 0-3 km storm-relative helicity
- 338 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 8.8
The text
As transmitted, in the capitals the NWS used until 2016.
978
WGUS54 KLCH 201756
FFWLCH
TXC245-202100-
/O.NEW.KLCH.FF.W.0017.120320T1756Z-120320T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1256 PM CDT TUE MAR 20 2012
THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHWESTERN JEFFERSON COUNTY IN SOUTHEAST TEXAS...
* UNTIL 400 PM CDT
* AT 1253 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. RADAR AND RAIN GAUGE ESTIMATES INDICATE THAT RAINFALL
AMOUNTS OF 1.5 TO 3.5 INCHES HAVE FALLEN OVER THE PAST 3 HOURS
ACROSS NORTHWESTERN JEFFERSON COUNTY INCLUDING BEAUMONT.
ADDITIONAL SHOWERS AND THUNDERSTORMS ARE DEVELOPING TO THE
SOUTHWEST AND ARE FORECAST TO MOVE NORTH ACROSS THE AREA THAT
HEAVY RAINS HAVE ALREADY FALLEN. ADDITIONAL RAINFALL AMOUNTS OF
ONE TO TWO INCHES ARE EXPECTED THROUGH 2 PM WITH HIGHER AMOUNTS
POSSIBLE.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BEAUMONT...CENTRAL GARDENS...HAMSHIRE...NEDERLAND...NOME...CHINA...
FANNETT...LA BELLE AND SOUTHEAST TEXAS REGIONAL AIRPORT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.
&&
LAT...LON 3010 9444 3010 9434 3013 9429 3016 9412
3010 9408 3008 9409 3008 9406 3003 9403
3003 9400 3001 9400 3001 9396 2963 9435
2988 9436 2988 9442
$$1 follow-up statement
465
WGUS74 KLCH 201952
FFSLCH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
252 PM CDT TUE MAR 20 2012
TXC245-202100-
/O.CON.KLCH.FF.W.0017.000000T0000Z-120320T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JEFFERSON TX-
252 PM CDT TUE MAR 20 2012
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR JEFFERSON COUNTY UNTIL
400 PM CDT...
AT 250 PM CDT...THE PUBLIC REPORTED THAT MINOR STREET FLOODING WAS
OCCURRING NEAR BEAUMONT.
SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
BEAUMONT...CENTRAL GARDENS...HAMSHIRE...NOME...CHINA...FANNETT...LA
BELLE AND SOUTHEAST TEXAS REGIONAL AIRPORT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM PREVIOUS HEAVY RAINFALL WILL CAUSE MINOR FLOODING OF
SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 3010 9444 3010 9434 3013 9429 3016 9412
3010 9408 3008 9409 3008 9406 3003 9403
3003 9400 3001 9400 3001 9396 2963 9435
2988 9436 2988 9442
$$The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 20, 11:12 AM CDT | Areal Flood Advisory | LCH | Hardin, Jasper, Tyler | 3 hr |
| Mar 20, 11:32 AM CDT | Flash Flood Warning | LCH | Hardin, Jefferson | 3 hr |
| Mar 20, 11:58 AM CDT | Areal Flood Advisory | LCH | Jefferson | 2 hr |
| Mar 20, 12:40 PM CDT | Areal Flood Advisory | LCH | Jasper | 3 hr |
| Mar 20, 1:23 PM CDT | Flash Flood Warning | LCH | Jasper | 7 hr |
| Mar 20, 1:32 PM CDT | Areal Flood Advisory | LCH | Jasper, Newton | 3 hr |
| Mar 20, 2:07 PM CDT | Flash Flood Warning | LCH | Jasper, Newton | 3 hr |
| Mar 20, 2:27 PM CDT | Flash Flood Warning | LCH | Jasper, Newton | 5 hr |
| Mar 20, 2:30 PM CDT | Flash Flood Warning | LCH | Orange | 7 hr |
| Mar 20, 3:18 PM CDT | Flash Flood Warning | LCH | Orange | 6 hr |
| Mar 20, 6:53 PM CDT | Flash Flood Warning | LCH | Jasper, Newton | 2 hr |
Nearby
Flash Flood Warnings in Texas, 2012Every flash flood warning in 2012
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.