Alert archive / Texas / Flash Flood Warnings in 2012
Flash Flood Warning 29, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Mar 28, 2012, 5:55 PM CDT for DeWitt County, Karnes County, Texas. It was in force for 3 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
- Mar 28, 2012, 5:55 PM CDT (22:55 UTC)
- Expired
- Mar 28, 2012, 8:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties DeWitt County, TX, Karnes County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 28, 7:15 PM CDT | HEAVY RAIN 5.6 | Karnes City, TX | 5.6 INCHES RAINFALL TOTAL UP TO 715 PM IN KARNES CITY. |
| Mar 28, 7:17 PM CDT | FLASH FLOOD | 1 Sw Karnes City, TX | WATER OVER THE ROAD AT HIGHWAY 181 AT CALVERT AVE...AND FM 80 AT FM 81. PROCESS IS UNDERWAY TO CLOSE THESE ROADS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 10.9 hours before the alert went out and 140 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
- 980 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 457 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
821 WGUS54 KEWX 282255 FFWEWX TXC123-255-290130- /O.NEW.KEWX.FF.W.0029.120328T2255Z-120329T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 555 PM CDT WED MAR 28 2012 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHWESTERN DEWITT COUNTY... CENTRAL KARNES COUNTY... * UNTIL 830 PM CDT. * AT 541 PM CDT...SLOW MOVING THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL ACROSS KARNES COUNTY AND SOUTHWESTERN DEWITT COUNTY. THE HEAVIEST RAINFALL HAS GENERALLY BEEN BETWEEN KARNES CITY AND NORDHEIM...WHERE RADAR ESTIMATES THAT BETWEEN 2 TO 4 INCHES OR MORE OF RAIN HAS FALLEN SINCE 5 PM. ADDITIONAL RAINFALL OF 2 OR MORE INCHES IS POSSIBLE THROUGH THIS EVENING AND MAY QUICKLY LEAD TO FLASH FLOODING. * RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. LOW WATER CROSSINGS WILL BECOME IMPASSIBLE. SOME OF THE HEAVIEST RAIN HAS FALLEN OVER AREAS WHICH INCLUDE FM 627...FM 81...STATE HIGHWAY 80...AND STATE HIGHWAY 72. DRIVERS CAN EXPECT WATER ON THE ROAD AND POSSIBLY FLOODING...AND SHOULD SEEK ALTERNATE ROUTES. ADDITIONAL LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...KARNES CITY...KENEDY...NORDHEIM AND RUNGE. PRECAUTIONARY/PREPAREDNESS ACTIONS... WHEN WATER COVERS THE ROAD...TURN AROUND DON'T DROWN. THE LIFE YOU SAVE MAY BE YOUR OWN. && LAT...LON 2906 9768 2889 9749 2874 9790 2892 9801 $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 4:36 PM CDT | Areal Flood Advisory | EWX | DeWitt, Lavaca | 114 min |
| Mar 28, 5:08 PM CDT | Flash Flood Warning | EWX | DeWitt, Lavaca | 112 min |
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.