Alert archive / Texas / Flash Flood Warnings in 2011
Flash Flood Warning 2, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this flash flood warning at Sep 29, 2011, 5:20 PM CDT for Webb County, Texas. It was in force for 3 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
- Sep 29, 2011, 5:20 PM CDT (22:20 UTC)
- Expired
- Sep 29, 2011, 8:01 PM CDT
- In force
- 3 hr
- Issued by
- NWS Corpus Christi, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Webb County, TX
The radar
The Corpus Christi radar (KCRP), 178 km from the middle of the area, began a volume at 22:22 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
Corpus Christi, TX (KCRP), launched 12:00Z, 10.3 hours before the alert went out and 194 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
- 3536 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 602 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -50 m²/s²
- 0-3 km storm-relative helicity
- -44 m²/s²
- Significant tornado parameter
- -0.5
- Supercell composite
- -3.2
The text
As transmitted, in the capitals the NWS used until 2016.
586 WGUS54 KCRP 292220 FFWCRP TXC479-300115- /O.NEW.KCRP.FF.W.0002.110929T2220Z-110930T0115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 520 PM CDT THU SEP 29 2011 THE NATIONAL WEATHER SERVICE IN CORPUS CHRISTI HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL WEBB COUNTY IN SOUTH CENTRAL TEXAS... * UNTIL 815 PM CDT * AT 513 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL CAPABLE OF PRODUCING FLASH FLOODING. RAINFALL OF 2 TO 4 INCHES HAS ALREADY FALLEN ACROSS THE WARNED AREA. * RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLOODING TO OCCUR. SOME CITIES AND TOWNS THAT WILL EXPERIENCE FLOODING INCLUDE... RANCHITOS LAS LOMAS AND UNITED SOUTH HIGH SCHOOL. SOME CREEKS THAT WILL EXPERIENCE FLOODING INCLUDE...CHACON CREEK AND SAN JUANITO CREEK. PRECAUTIONARY/PREPAREDNESS ACTIONS... ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE IN THE WARNED AREA. 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. MOVE TO HIGHER GROUND. && LAT...LON 2739 9922 2742 9947 2769 9938 2767 9918 $$ GRANTHAM
1 follow-up statement
028 WGUS74 KCRP 300101 FFSCRP FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 801 PM CDT THU SEP 29 2011 TXC479-300106- /O.CAN.KCRP.FF.W.0002.000000T0000Z-110930T0115Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WEBB- 801 PM CDT THU SEP 29 2011 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL WEBB COUNTY... THE HEAVIER RAINS ACROSS THE WARNED AREA HAVE ENDED. HOWEVER...AREAS OF LIGHT TO MODERATE RAINFALL WILL CONTINUE ACROSS PORTIONS OF WEBB COUNTY THROUGH MID EVENING. ISOLATED LOCATIONS MAY EXPERIENCE PONDING OF WATER BUT FLASH FLOODING IS NO LONGER ANTICIPATED. LAT...LON 2739 9922 2742 9947 2769 9938 2767 9918 $$ HART
The office that day
Everything else NWS Corpus Christi, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 29, 11:33 AM CDT | Special Marine Warning | CRP | 57 min | |
| Sep 29, 12:03 PM CDT | Areal Flood Advisory | CRP | Calhoun | 117 min |
| Sep 29, 12:08 PM CDT | Special Marine Warning | CRP | 67 min | |
| Sep 29, 1:09 PM CDT | Special Marine Warning | CRP | 96 min | |
| Sep 29, 1:12 PM CDT | Special Marine Warning | CRP | 63 min | |
| Sep 29, 1:17 PM CDT | Severe Thunderstorm Warning | CRP | Aransas, Bee, Refugio, San Patricio | 43 min |
| Sep 29, 1:58 PM CDT | Severe Thunderstorm Warning | CRP | Aransas, Bee, Refugio, San Patricio | 47 min |
| Sep 29, 2:21 PM CDT | Severe Thunderstorm Warning | CRP | Nueces, San Patricio | 39 min |
| Sep 29, 2:32 PM CDT | Severe Thunderstorm Warning | CRP | Duval, Jim Wells, Live Oak, McMullen, Nueces, San Patricio | 58 min |
| Sep 29, 3:40 PM CDT | Severe Thunderstorm Warning | CRP | La Salle | 16 min |
| Sep 29, 5:21 PM CDT | Severe Thunderstorm Warning | CRP | Bee, Goliad, Live Oak, Victoria | 54 min |
Nearby
Flash Flood Warnings in Texas, 2011Every flash flood warning in 2011
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.