Alert archive / Texas / Flash Flood Watches in 2015
Flash Flood Watch 4, NWS Corpus Christi, TX
NWS Corpus Christi, TX issued this flash flood watch at May 11, 2015, 2:30 PM CDT for 15 counties in Texas. It took effect at May 11, 2015, 6:00 PM CDT. It was in force for 47 hr.
The area
The counties it named.
The facts
- Issued
- May 11, 2015, 2:30 PM CDT (19:30 UTC)
- In effect from
- May 11, 2015, 6:00 PM CDT
- Expired
- May 13, 2015, 5:00 PM CDT
- In force
- 47 hr
- Issued by
- NWS Corpus Christi, TX
- Flood severity
- None
Counties Aransas County, TX, Bee County, TX, Calhoun County, TX, Duval County, TX, Goliad County, TX, Jim Wells County, TX, Kleberg County, TX, La Salle County, TX, Live Oak County, TX, McMullen County, TX, Nueces County, TX, Refugio County, TX, San Patricio County, TX, Victoria County, TX, Webb County, TX
The radar
The Corpus Christi radar (KCRP), 50 km from the middle of the area, began a volume at 19:30 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, 7.5 hours before the alert went out and 66 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
- 2111 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 664 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 6.2
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Corpus Christi, TX wrote its last area forecast discussion before this flash flood watch went out at May 11, 12:31 PM CDT, 1 hour 59 minutes earlier.
Area forecast discussion, May 11, 12:31 PM CDT, 1 hour 59 minutes before
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</html>Hazardous weather outlook, May 11, 5:40 AM CDT, 8 hours 50 minutes before
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</html>In the hours before
Special weather statement, May 11, 11:08 AM CDT, 3 hours 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 1108 AM CDT MON MAY 11 2015 TXZ229>234-239>247-121100- LA SALLE-MCMULLEN-LIVE OAK-BEE-GOLIAD-VICTORIA-WEBB-DUVAL- JIM WELLS-KLEBERG-NUECES-SAN PATRICIO-ARANSAS-REFUGIO-CALHOUN- INCLUDING THE CITIES OF...COTULLA...CALLIHAM...CROSS... LOMA ALTA...TILDEN...GEORGE WEST...THREE RIVERS...BEEVILLE... GOLIAD...VICTORIA...LAREDO...FREER...BENAVIDES...SAN DIEGO... ALICE...ORANGE GROVE...KINGSVILLE...CORPUS CHRISTI...PORTLAND... INGLESIDE...ARANSAS PASS...SINTON...MATHIS...ROCKPORT...REFUGIO... WOODSBORO...PORT LAVACA 1108 AM CDT MON MAY 11 2015 ...CONCERN FOR SEVERE THUNDERSTORMS THIS AFTERNOON THROUGH TUESDAY NIGHT... ...POTENTIAL FOR LOCALLY HEAVY RAINFALL AND FLOODING TONIGHT THROUGH THURSDAY... A VERY ACTIVE WEATHER PATTERN IS IN STORE FOR SOUTH TEXAS THIS WEEK...AS COPIOUS MOISTURE COMBINES WITH A FRONTAL BOUNDARY AND ENERGY FROM A SLOW-MOVING UPPER LEVEL STORM SYSTEM TO PRODUCE PERIODS OF RAIN AND THUNDERSTORMS. FOR THIS AFTERNOON THROUGH TUESDAY NIGHT...A FRONTAL BOUNDARY WILL PROVIDE A FOCUS FOR SHOWERS AND THUNDERSTORMS...ESPECIALLY LATE THIS AFTERNOON AND TONIGHT. SOME OF THE STORMS HAVE THE POTENTIAL TO BECOME SEVERE...WITH LOCALLY HEAVY RAINFALL POSSIBLE. THE GREATEST CONCERN FOR HEAVY RAINFALL TONIGHT THROUGH TUESDAY NIGHT WILL BE OVER AREAS NEAR AND WEST OF AN ALICE TO BEEVILLE LINE. LOCALLY DAMAGING WINDS AND LARGE HAIL WILL BE THE MAIN CONCERNS FOR ANY SEVERE WEATHER...ALTHOUGH AN ISOLATED TORNADO OR TWO WILL ALSO BE POSSIBLE. THERE IS THE POTENTIAL FOR AN ORGANIZED SYSTEM OF STORMS TO DEVELOP LATER THIS AFTERNOON OR THIS EVENING OVER THE RIO GRANDE PLAINS AND WESTERN BRUSH COUNTRY...THEN MOVE EAST TOWARD THE COAST LATE THIS EVENING AND OVERNIGHT...POSSIBLY PRODUCING DAMAGING WINDS AND HAIL ALONG WITH LOCALLY HEAVY RAINFALL. ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS ARE EXPECTED TUESDAY AND TUESDAY NIGHT...WITH A SLIGHT RISK FOR SEVERE WEATHER ONCE AGAIN AND AN ENHANCED RISK FOR FLOODING. ALTHOUGH THE SURFACE FRONT IS NOT EXPECTED TO BE AN INFLUENCING FACTOR FOR SOUTH TEXAS WEDNESDAY THROUGH FRIDAY...RAIN CHANCES WILL CONTINUE OVER SOUTH TEXAS AS THE UPPER STORM SYSTEM REMAINS TO THE WEST AND COPIOUS AMOUNTS OF MOISTURE CONTINUE. ALTHOUGH THE CONCERN FOR ORGANIZED SEVERE WEATHER WILL DIMINISH BY WEDNESDAY... THE POTENTIAL FOR FLASH FLOODING AND RIVER FLOODING WILL INCREASE...AS ANY STORMS WHICH DEVELOP WILL LIKELY OCCUR OVER SATURATED SOILS AND THUS LIKELY RUN OFF. AT THIS TIME...AVERAGE RAINFALL AMOUNTS THROUGH FRIDAY ARE EXPECTED TO AVERAGE BETWEEN 3 AND 6 INCHES OVER INLAND AREAS...GENERALLY NEAR AND WEST OF A KINGSVILLE TO SINTON TO BLOOMINGTON LINE...WITH THE HIGHEST RAINFALL TOTALS OVER THE RIO GRANDE PLAINS (INCLUDING LAREDO) AND THE NORTHERN BRUSH COUNTRY. LOWER AMOUNTS ARE EXPECTED OVER AREAS CLOSER TO THE COAST. ISOLATED AMOUNTS OF 10 TO 15 INCHES OF PRECIPITATION ARE CERTAINLY POSSIBLE OVER THE NEXT SEVERAL DAYS...BEFORE THE IMPACTS OF THE UPPER LEVEL SYSTEM BEGIN TO MOVE INTO THE SOUTHERN PLAINS. A FLASH FLOOD WATCH MAY BE ISSUED LATER TODAY FOR PORTIONS OR ALL OF SOUTH TEXAS...OR AT LEAST WITHIN THE NEXT 24 TO 48 HOURS. SOUTH TEXAS RESIDENTS SHOULD CONTINUE TO MONITOR THE LATEST FORECASTS ON THIS UPCOMING HEAVY RAINFALL AND POTENTIAL SEVERE WEATHER EVENT. STAY TUNED TO YOUR NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS CONCERNING ANY WATCHES OR WARNINGS WHICH WILL BE ISSUED OVER THE NEXT SEVERAL DAYS. YOU CAN ALSO KEEP TRACK OF THE WEATHER ON OUR WEB PAGE AT (ALL LOWER CASE)... WWW.SRH.NOAA.GOV/CRP GW
The office that day
Everything else NWS Corpus Christi, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 3:04 PM CDT | Areal Flood Advisory | CRP | Duval | 116 min |
| May 11, 3:41 PM CDT | Special Weather Statement | CRP | Duval | 34 min |
| May 11, 3:47 PM CDT | Areal Flood Advisory | CRP | Duval, McMullen | 118 min |
| May 11, 4:35 PM CDT | Areal Flood Advisory | CRP | Duval, Webb | 115 min |
| May 11, 4:41 PM CDT | Special Weather Statement | CRP | Duval | 49 min |
| May 11, 4:55 PM CDT | Areal Flood Advisory | CRP | Webb | 2 hr |
| May 11, 4:55 PM CDT | Severe Thunderstorm Warning | CRP | Duval, Webb | 50 min |
| May 11, 5:02 PM CDT | Flash Flood Warning | CRP | Duval, Webb | 3 hr |
| May 11, 5:31 PM CDT | Special Weather Statement | CRP | Karnes | 44 min |
| May 11, 5:33 PM CDT | Areal Flood Advisory | CRP | Bee, Live Oak | 117 min |
| May 11, 5:37 PM CDT | Severe Thunderstorm Warning | CRP | Bee, Live Oak | 38 min |
| May 11, 5:40 PM CDT | Areal Flood Advisory | CRP | La Salle, McMullen | 2 hr |
| May 11, 5:46 PM CDT | Severe Thunderstorm Warning | CRP | Duval | 44 min |
| May 11, 6:09 PM CDT | Areal Flood Advisory | CRP | Duval | 2 hr |
| May 11, 6:28 PM CDT | Flash Flood Warning | CRP | Webb | 3 hr |
| May 11, 6:35 PM CDT | Areal Flood Advisory | CRP | Webb | 115 min |
| May 11, 6:41 PM CDT | Severe Thunderstorm Warning | CRP | Duval | 34 min |
| May 11, 6:42 PM CDT | Areal Flood Advisory | CRP | Bee, Goliad | 3 hr |
| May 11, 6:47 PM CDT | Areal Flood Advisory | CRP | La Salle | 118 min |
Nearby
Flash Flood Watches in Texas, 2015Every flash flood watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.