April - Ends on Mild Note

[srainhoutx]

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
642 PM CDT SAT APR 27 2013

TXZ210-226-280015-
COLORADO TX-WHARTON TX-
642 PM CDT SAT APR 27 2013

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN COLORADO AND
NORTHWESTERN WHARTON COUNTIES UNTIL 715 PM CDT...

AT 638 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 12 MILES EAST OF SUBLIME...OR 19 MILES SOUTH
OF COLUMBUS...MOVING EAST AT 15 MPH.

HAIL UP TO THE SIZE OF DIMES AND WIND GUSTS UP TO 40 MPH WILL BE
POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
EAGLE LAKE.

[srainhoutx]

MESOSCALE DISCUSSION 0567
NWS STORM PREDICTION CENTER NORMAN OK
0643 PM CDT SAT APR 27 2013

AREAS AFFECTED...PORTIONS S TX.

CONCERNING...SEVERE THUNDERSTORM WATCH 142...

VALID 272343Z - 280145Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 142
CONTINUES.

SUMMARY...SVR POTENTIAL CONTINUES OVER MOST OF WW...POSSIBLE
EXCEPTION BEING PORTIONS NOW N OF SFC COLD FRONT FROM AUS AREA NWD
DEPENDING ON WHETHER STORM-SCALE PROCESSES FARTHER S CAN YIELD
LEFT-SPLITS MOVING INTO THIS AREA. AREAS ADJOINING SWRN BOUNDARY OF
WW...FROM COT SWD TO ZAPATA COUNTY...ALSO ARE BEING MONITORED FOR
POSSIBLE WW RELATED TO SVR WIND/HAIL POTENTIAL SHIFTING EWD FROM
MEX.

DISCUSSION...CLUSTERS OF STG-SVR TSTMS HAVE CONTINUED OVER GREATER
HOU METRO AREA AS WELL AS BETWEEN CLL-VCT...AND ALONG OLD
DIFFERENTIAL HEATING BOUNDARY OVER EDWARDS/REAL COUNTIES. LATTER
ACTIVITY IS IN MOST FAVORABLE MESOSCALE ENVIRONMENT FOR SUPERCELLS
AND DAMAGING HAIL...WITH FCST SOUNDINGS SUGGESTING 45-50 KT
EFFECTIVE SHEAR MAGNITUDES AND 2500 J/KG MLCAPE.
HOWEVER...STORM-SCALE/OUTFLOW PROCESSES MAY YIELD MESSY ECHO
STRUCTURES. ADDITIONAL DEVELOPMENT IS POSSIBLE ALONG THEIR
OUTFLOWS...AS WELL AS THOSE OF TSTMS ELSEWHERE IN WW. THOUGH STILL
AT LEAST MRGLLY FAVORABLE FOR SVR...BOTH BUOYANCY AND DEEP SHEAR
WILL CONTINUE TO BE WEAKER WITH EWD EXTENT...SUGGESTING SOMEWHAT
LESS-ORGANIZED SVR THREAT IN SE TX DESPITE GREATER CURRENT TSTM
COVERAGE. MAIN CONCERN OVER MID-UPPER TX COASTAL PLAIN WILL BE
DAMAGING DOWNDRAFTS RELATED TO PRECIP LOADING...GIVEN 1.75-INCH PW
AND WEAKER WINDS ALOFT...WITH ISOLATED LARGE HAIL STILL POSSIBLE.

OVERALL INCREASE IN COVERAGE OF SHOWERS AND TSTMS HAS BEEN EVIDENT
DURING LAST HOUR OVER AREAS W OF RIO GRANDE...BETWEEN ZAPATA COUNTY
AND DRT. GENERALLY CONFLUENT AND UPSLOPE FLOW INTO THIS REGION
YIELDS ENHANCEMENT TO STORM-RELATIVE INFLOW...AS WELL AS INCREASING
MOISTURE FOR ANY ACTIVITY THAT CAN GET WELL-ROOTED IN BOUNDARY
LAYER. COUNTERBALANCING FACTOR IS EML...WHICH OFFERS STEEP MIDLEVEL
LAPSE RATES BUT ALSO 50-100 J/KG MLCINH ESTIMATED E OF MEX MTNS NEAR
RIO GRANDE. ANY CONVECTION THAT CAN BECOME SUFFICIENTLY CLUSTERED
TO DEVELOP COLD POOL COULD PROVIDE SUFFICIENT FORCED ASCENT TO
OVERCOME THAT CINH AND SUSTAIN SVR RISK FROM MEX INTO PORTIONS DEEP
S TX S OF PRESENT WW.

..EDWARDS.. 04/27/2013


ATTN...WFO...LCH...SHV...HGX...FWD...CRP...EWX...BRO...

[Rip76]

Hail here in 77089.

[srainhoutx]

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
651 PM CDT SAT APR 27 2013

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
NORTHEASTERN FORT BEND COUNTY IN SOUTHEAST TEXAS...
EXTREME NORTH CENTRAL BRAZORIA COUNTY IN SOUTHEAST TEXAS...
EXTREME WESTERN HARRIS COUNTY IN SOUTHEAST TEXAS...
SOUTHEASTERN WALLER COUNTY IN SOUTHEAST TEXAS...

* UNTIL 945 PM CDT

* AT 634 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS OCCURRING
AND THIS IS A VERY DANGEROUS SITUATION. A SWATH OF 4 TO 5 INCHES
OF RAIN FELL FROM ADDICKS RESERVOIR TO STAFFORD TO RELIANT STADIUM
TO NEAR HOBBY AIRPORT. MOST OF THE RAIN FELL BETWEEN 330 PM AND
630 PM.

FLOODING OF MANY CITY STREETS HAS ALREADY OCCURRED AND WATER
RESCUES CONTINUE. BRAYS BAYOU AND KEEGANS BAYOU BORE THE BRUNT OF
THE HEAVY RAIN AND THESE WATERSHEDS WILL LIKELY RISE TO BANKFULL OR
POTENTIALLY EXCEED BANKFULL AND FLOOD. 7.08 INCHES OF RAIN FELL AT
KEEGANS BAYOU AT ROARKE WITH 5 TO 6 INCHES OF RAIN NEAR RELIANT
STADIUM. BRAYS BAYOU WILL LIKELY COME OUT OF BANKS NEAR LAWNDALE AVE.


* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
HOUSTON...PASADENA...MISSOURI CITY...MISSION BEND...SUGAR LAND...
FIRST COLONY...BELLAIRE...SOUTH HOUSTON...WEST UNIVERSITY PLACE...
KATY...STAFFORD...TOWN WEST...MEADOWS...HUNTERS CREEK VILLAGE...
BUNKER HILL VILLAGE...SPRING VALLEY...PINEY POINT VILLAGE...
FRESNO...HEDWIG VILLAGE...BROOKSIDE VILLAGE...SOUTHSIDE PLACE AND
HILSHIRE VILLAGE.

[ticka1]

So what you're saying is..... The cap broke

big time

[Rip76]

Lots of electricity out there tonight.

[srainhoutx]

For our neighbors SW of Houston:

FLOOD ADVISORY
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
706 PM CDT SAT APR 27 2013

TXC285-280200-
/O.NEW.KEWX.FA.Y.0013.130428T0006Z-130428T0200Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAVACA-
706 PM CDT SAT APR 27 2013

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SMALL STREAM FLOOD ADVISORY FOR MINOR FLOODING OF POOR DRAINAGE
AREAS IN...
LAVACA COUNTY...

* UNTIL 900 PM CDT

* AT 702 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE
DETECTED AN AREA OF HEAVY RAINFALL ACROSS THE ADVISORY AREA.
DOPPLER RADAR ESTIMATED THAT 2 TO 4 INCHES OF RAIN HAS FALLEN.
AN ADDITIONAL INCH OR TWO IS POSSIBLE OVER THE NEXT FEW HOURS.

* RUNOFF FROM THIS RAINFALL WILL CAUSE MINOR FLOODING TO OCCUR...
ESPECIALLY ALONG SMALL STREAMS AND NEAR LOW WATER CROSSINGS. SOME
LOCATIONS THAT WILL EXPERIENCE MINOR FLOODING INCLUDE...
HALLETTSVILLE...SHINER...EZZELL AND SUBLIME.

* LAVACA COUNTY SHERIFFS OFFICE REPORTED WATER ON PORTIONS OF COUNTY
ROAD 530 IN SOUTHERN LAVACA COUNTY ALONG WITH SOME WASHOUTS DUE
TO THE LOCALLY HEAVY RAINFALL.

[srainhoutx]

288 is closed in both directions due to high water @ Yellowstone

[srainhoutx]

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
713 PM CDT SAT APR 27 2013

TXZ210-226-235-280100-
JACKSON TX-COLORADO TX-WHARTON TX-
713 PM CDT SAT APR 27 2013

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL JACKSON...SOUTHERN
COLORADO AND NORTHWESTERN WHARTON COUNTIES UNTIL 800 PM CDT...

AT 708 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 13 MILES NORTHEAST OF SPEAKS...OR 19 MILES
SOUTHWEST OF EAGLE LAKE...MOVING EAST AT 15 MPH.

HAIL UP TO THE SIZE OF DIMES AND WIND GUSTS UP TO 40 MPH WILL BE
POSSIBLE WITH THIS STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF EXTREME NORTH
CENTRAL JACKSON...SOUTHERN COLORADO AND NORTHWESTERN WHARTON
COUNTIES.

[srainhoutx]

80-100 vehicles flooded by Fountains Mall in Stafford. Water rescues underway by fire department.

[mckinne63]

Oh my! The Fountains is just down the road from me. I thought we had received alot of rain, but didn't know about the flooding in the area. I am going to need to drain the pool a bit. And we lost power for about an hour.

[srainhoutx]

Jeff reports S Mayde Creek is out of its banks and still rising. Widespread extensive street flooding underway and homes are in danger of taking water from street flooding. He is watching Brays and Keegans Bayous closely

[srainhoutx]

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON, TX
742 PM CDT SAT APR 27 2013

...THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A FLOOD WARNING
FOR THE FOLLOWING RIVERS...

BRAYS BAYOU AT LAWNDALE AVENUE AFFECTING HARRIS COUNTY

SOUTH MAYDE CREEK NEAR ADDICKS AFFECTING HARRIS COUNTY

FOR THE ADDICKS RESERVOIR AT ADDICKS, MINOR FLOODING IS OCCURING, WITH RIVER
LEVELS FORECASTED TO DECREASE.

FOR THE BRAYS BAYOU AT LAWNDALE AVENUE, MINOR
FLOODING IS OCCURING, WITH RIVER LEVELS FORECASTED TO DECREASE.

[Rip76]

Looks like the storms out west, may turn southward.

[unome]

updated thru 00 UTC

[Rip76]

It's been a long time since I can remember this much lightning.

[srainhoutx]

Report: Water up to door handles on vehicles Monroe near the Gulf Freeway

[jasons2k]

I've been right on the edge all day - .30" so far. I've been hearing thunder for hours it seems.

[Houstonkid]

4.5" here at clay rd./mason

[unome]

one hour later

updated thru 00 UTC