May 2015 Record Setting May Rainfall Totals For Region

Wed May 27, 2015 5:18 am

Morning update from HGX is very concerning folks. Stay weather aware today with the increasing low level inflow to our West as we may see training storms develop...again over areas that flooded Monday night into early yesterday morning.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
503 AM CDT WED MAY 27 2015

.DISCUSSION...
CHALLENGING START TO THE MORNING UNDERWAY FOR SOUTHEAST TEXAS AS
A THUNDERSTORM COMPLEX THAT DEVELOPED OVER NORTHWEST TEXAS
YESTERDAY EVENING HAS TRACKED INTO NORTHERN PORTIONS OF THE
FORECAST AREA EARLY THIS MORNING. THIS HAS BEEN HANDLED POORLY BY
SHORT-TERM GUIDANCE... AND THIS INSTILLS A CONSIDERABLE AMOUNT OF
UNCERTAINTY FOR TODAY/S FORECAST. TRENDS IN OBSERVATIONAL DATA
HAVE SERVED AS THE BASIS FOR THE EVOLUTION OF THIS COMPLEX THIS
MORNING AND ANTICIPATE THE LINE TO CONTINUE PUSHING TOWARDS THE
SOUTH/SOUTHEAST BEHIND AN OUTFLOW BOUNDARY STRETCHING FROM NEAR LA
GRANGE EASTWARD TOWARDS CLEVELAND. VAD WIND PROFILERS AT CORPUS
CHRISTI AND DICKINSON SHOW A 25 KNOT LOW LEVEL JET RIDING OUT THIS
OUTFLOW BOUNDARY... SUPPLYING ADDITIONAL/MOISTURE AND INSTABILITY
INTO THIS SYSTEM. INFRARED SATELLITE IMAGERY AS OF 415 AM CDT
SHOWED CLOUD TOPS HAVE COOLED TO NEAR -70 DEG... AND THIS IS AN
OMINOUS SIGN FOR THE INTENSITY OF THIS LINE AS IT APPROACHES THE
HOUSTON METRO AS RAIN RATES HAVE INCREASED TO NEAR 2.5 TO 3 INCHES
AN HOUR OF PARTS OF SAN JACINTO AND GRIMES COUNTIES.

EXTRAPOLATION SHOWS THIS LINE REACHING INSIDE THE WESTERN 610
LOOP AND POINTS SOUTHWEST... SOME OF THE AREAS THAT SAW THE
HIGHEST RAIN TOTALS YESTERDAY /8 TO 11 INCHES/... BY 6 AM CDT.
BECAUSE OF THE ANTICIPATED APPROACH OF THIS LINE INTO THE HOUSTON
METRO... HAVE OPTED TO ISSUE A FLASH FLOOD WATCH FOR
MONTGOMERY...HARRIS... AND FORT BEND COUNTIES. LOCALIZED FLOODING
ISSUES WILL DEFINITELY BE POSSIBLE OUTSIDE OF THIS AREA AS WELL.
UNCERTAIN ON WHETHER OR NOT THIS LINE WILL ACTUALLY REACH THE
UPPER TEXAS COAST... PER THE CAP CITED IN WPC/S MESOSCALE
DISCUSSION... BUT WITH SPC MESOANALYSIS SHOWING THE SYSTEM STILL
MAINTAINING ITSELF WITHIN THIS MORE STABLE MID-LEVEL AIR... HAVE
INCREASED POPS ALONG THE COAST FOR THIS MORNING. AS FAR AS THE
EVOLUTION OF THIS AFTERNOON IS CONCERNED... THINK STABILIZATION/
SUBSIDENCE IN THE WAKE OF THIS SYSTEM WILL PROVIDE A LULL IN
ACTIVITY LATE MORNING TO EARLY AFTERNOON BUT COULD SEE ADDITIONAL
ISOLATED TO SCATTERED STORMS DEVELOP ALONG REMNANT BOUNDARIES AS
AFTERNOON TEMPERATURES CLIMB INTO THE MID TO UPPER 80S AND HAVE
KEPT POPS IN THE 20 TO 40 RANGE.

FOR TONIGHT AND TOMORROW... SHOULD SEE ANY SHOWERS AND
THUNDERSTORMS THAT DEVELOP THIS AFTERNOON DIMINISH WITH LOSS OF
DAYTIME HEATING. ANOTHER ROUND OF DIURNALLY DRIVEN ACTIVITY WILL
BE POSSIBLE AGAIN ON THURSDAY... WITH TEMPERATURES NEAR SEASONAL
NORMALS. ANOTHER THUNDERSTORM COMPLEX COULD APPROACH THE REGION
LATE THURSDAY INTO FRIDAY AHEAD OF AN UPPER TROUGH SWINGS ACROSS
THE REGION LATE WEEK. AS IT PASSES... IT WILL SEND A COLD FRONT
TOWARDS THE REGION ON SUNDAY WITH ADDITIONAL SHOWERS AND
THUNDERSTORMS POSSIBLE ALONG IT.

HUFFMAN

Wed May 27, 2015 5:23 am

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
521 AM CDT WED MAY 27 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN LIBERTY COUNTY IN SOUTHEASTERN TEXAS...
HARRIS COUNTY IN SOUTHEASTERN TEXAS...
EASTERN AUSTIN COUNTY IN SOUTHEASTERN TEXAS...
BRAZOS COUNTY IN SOUTHEASTERN TEXAS...
SOUTHWESTERN WALLER COUNTY IN SOUTHEASTERN TEXAS...
SOUTHEASTERN MONTGOMERY COUNTY IN SOUTHEASTERN TEXAS...
NORTHWESTERN FORT BEND COUNTY IN SOUTHEASTERN TEXAS...
NORTHERN CHAMBERS COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 600 AM CDT

* AT 520 AM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM SOUR
LAKE TO NEAR WALLER...AND MOVING SOUTH AT 25 MPH. FREQUENT
LIGHTNING AND TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS LINE.

* LOCATIONS IMPACTED INCLUDE...
NORTHWESTERN PASADENA...COLLEGE STATION...BRYAN...BAYTOWN...DEER
PARK...BELLAIRE...HUMBLE...WEST UNIVERSITY PLACE...KATY...GALENA
PARK...TOMBALL...JACINTO CITY...LIBERTY...JERSEY VILLAGE...
DAYTON...NAVASOTA...SEALY...BROOKSHIRE...HUNTERS CREEK VILLAGE AND
BUNKER HILL VILLAGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

Wed May 27, 2015 5:27 am

Cloud tops continue to cool to near the -70C range along and to the West of Metro Houston which raise an eyebrow.

Wed May 27, 2015 5:29 am

Severe Thunderstorm Warning issued for Houston metro with Flash Flood Warnings N of Houston. Well those severe storms in NTX continued to develop overnight and move/develop more SE than ESE and are approaching Houston metro. Rainfall rates of 2-3.5" per hour are occurring in this line on already saturated grounds. The line is also showing some back building and slowing NW of Houston. Flash flooding may quickly become an issue this morning. Be weather aware and stay safe. Turn around don't drown!

Wed May 27, 2015 5:33 am

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
531 AM CDT WED MAY 27 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
LIBERTY COUNTY IN SOUTHEASTERN TEXAS...
SOUTHEASTERN POLK COUNTY IN SOUTHEASTERN TEXAS...
NORTHEASTERN HARRIS COUNTY IN SOUTHEASTERN TEXAS...
SOUTHERN SAN JACINTO COUNTY IN SOUTHEASTERN TEXAS...
SOUTHEASTERN MONTGOMERY COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 830 AM CDT

* AT 530 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. 1 TO 2 INCHES OF RAIN HAVE
FALLEN. AT LEAST AN ADDITIONAL 2 TO 4 INCHES ARE POSSIBLE. FLASH
FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
CONROE...LIBERTY...CLEVELAND...DAYTON...KINGWOOD...THE WOODLANDS...
SPRING...OAK RIDGE NORTH...SHENANDOAH...SPLENDORA...PATTON
VILLAGE...ROMAN FOREST...WOODBRANCH...CUT AND SHOOT...AMES...
DAISETTA...HARDIN...PLUM GROVE...KENEFICK AND NORTH CLEVELAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

Wed May 27, 2015 5:35 am

To our West where storms are slowing and intensifying...

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
532 AM CDT WED MAY 27 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
NORTHEASTERN FAYETTE COUNTY IN SOUTH CENTRAL TEXAS...
SOUTHEASTERN LEE COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 730 AM CDT

* AT 529 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. UP TO ONE INCH OF RAIN HAS
ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
GIDDINGS...LA GRANGE...FAYETTEVILLE...ROUND TOP...NECHANITZ...
WALHALLA...NORTHRUP...WICCHESTER...PLUM...WARRENTON...WARDA...
WALDECK...WINCHESTER...SERBIN...LEDBETTER...RUTERSVILLE AND RABBS
PRAIRIE.

ADDITIONAL RAINFALL AMOUNTS OF ONE INCH POSSIBLE IN THE WARNED AREA.

Wed May 27, 2015 5:43 am

I can't believe I'm the only one who saw this coming!

Wed May 27, 2015 5:46 am

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
545 AM CDT WED MAY 27 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
SOUTHEASTERN WASHINGTON COUNTY IN SOUTHEASTERN TEXAS...
NORTHWESTERN HARRIS COUNTY IN SOUTHEASTERN TEXAS...
NORTHEASTERN AUSTIN COUNTY IN SOUTHEASTERN TEXAS...
NORTHERN WALLER COUNTY IN SOUTHEASTERN TEXAS...
SOUTHWESTERN MONTGOMERY COUNTY IN SOUTHEASTERN TEXAS...
SOUTHEASTERN GRIMES COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 845 AM CDT

* AT 543 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. UP TO 2 INCHES OF RAIN HAVE
FALLEN. AT LEAST AN ADDITIONAL 1 TO 3 INCHES OF RAINFALL IS
POSSIBLE. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
TOMBALL...HEMPSTEAD...PRAIRIE VIEW...BELLVILLE...PINEHURST...THE
WOODLANDS...HOCKLEY...WALLER...MAGNOLIA...PINE ISLAND...STAGECOACH
AND MONAVILLE.

Wed May 27, 2015 5:51 am

Concerning because I am on the bus headed to work downtown - hopefully the worst won't happen. When I went to bed last night I saw this complex near DFW - big was I surprised to wake up and see a line of storms heading towards SE Texas. Please keep posting and all flooding updates too. Stay safe and dry.

Wed May 27, 2015 5:53 am

woke me up, never even saw it coming !

Stream Elevation Sensor 1219
L100 Little Cypress Creek @ Cypress Rosehill Road

15 minutes=.60 inches (now .72 ")

Wed May 27, 2015 5:56 am

Magnolia ISD Delayed 1 Hour

Montgomery ISD Delayed 2 Hours

Shepherd ISD Delayed 2 Hours

Huntsville ISD Delayed 2 Hours

Cleveland ISD Delayed 2 Hours

*** Water Rescues in progress on Hwy 105 at Tejas!!!! ****

Wed May 27, 2015 5:58 am

down stream at Grant, .84" in 15 minutes

http://www.harriscountyfws.org/GageDeta ... x/1165?R=1

Wed May 27, 2015 6:01 am

Getting slammed on the north side right now.

Wed May 27, 2015 6:02 am

1 inch of rainfall in 10 minutes in NW Harris County.

Wed May 27, 2015 6:03 am

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
602 AM CDT WED MAY 27 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
GALVESTON BAY...

* UNTIL 700 AM CDT

* AT 601 AM CDT...DOPPLER RADAR INDICATED STRONG WINDS GUSTING AHEAD
OF A LINE OF STRONG THUNDERSTORMS...CAPABLE OF PRODUCING WINDS 34
KNOTS OR GREATER...LOCATED OVER NORTHERN GALVESTON BAY...MOVING
SOUTH AT 35 KNOTS.

* LOCATIONS IMPACTED INCLUDE...
DRUM BAY...TABBS BAY...BURNET BAY...THE TEXAS CITY DIKE...BLACK
DUCK BAY...GALVESTON BAY...SCOTT BAY...CHRISTMAS BAY...MITCHELL
BAY...BASTROP BAY...TRINITY BAY...EAST GALVESTON BAY...CRYSTAL
BAY...WEST BAY AND GALVESTON CAUSEWAY.

WINDS ASSOCIATED WITH THE THUNDERSTORMS WILL ALSO GUST TO OVER 34
KNOTS.

Wed May 27, 2015 6:05 am

FLOOD STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON, TX
604 AM CDT WED MAY 27 2015

A river flood warning remains in effect for the South Mayde Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons are urged to stay away from the river until water levels recede.
Motorists should avoid any water covered roads and find an alternate route.
Livestock and equipment should remain out of the flood plain for the next few
days.

Stay tuned to NOAA Weather radio or other news sources for further updates.

Wed May 27, 2015 6:08 am

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
604 AM CDT WED MAY 27 2015

HARRIS TX-BRAZORIA TX-AUSTIN TX-WALLER TX-COLORADO TX-CHAMBERS TX-
HARRIS TX-WASHINGTON TX-LIBERTY TX-WHARTON TX-MONTGOMERY TX-
FORT BEND TX-
604 AM CDT WED MAY 27 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN LIBERTY...NORTHEASTERN
BRAZORIA...NORTHEASTERN COLORADO...NORTH CENTRAL WHARTON...
SOUTHEASTERN WASHINGTON...HARRIS...AUSTIN...WALLER...SOUTHERN
MONTGOMERY...NORTHERN FORT BEND AND CHAMBERS COUNTIES UNTIL 715 AM
CDT...

AT 603 AM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR DEVERS TO NEAR
BELLVILLE...AND MOVING SOUTH AT 25 MPH. AT 556 AM CDT... BROADCAST
MEDIA REPORTED A WIND GUST OF 45 MPH NEAR HIGHWAY 6 AT HUFFMEISTER
WITH THIS LINE.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
PASADENA...NORTHERN PEARLAND...SUGAR LAND...BAYTOWN...MISSOURI
CITY...LA PORTE...DEER PARK...NORTHWESTERN ROSENBERG...STAFFORD...
SOUTH HOUSTON...BELLAIRE...HUMBLE...WEST UNIVERSITY PLACE...KATY...
RICHMOND...GALENA PARK...TOMBALL...JACINTO CITY...LIBERTY AND JERSEY
VILLAGE.

Wed May 27, 2015 6:14 am

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
614 AM CDT WED MAY 27 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
SOUTHEASTERN LIBERTY COUNTY IN SOUTHEASTERN TEXAS...
HARRIS COUNTY IN SOUTHEASTERN TEXAS...
SOUTHEASTERN WALLER COUNTY IN SOUTHEASTERN TEXAS...
SOUTHEASTERN MONTGOMERY COUNTY IN SOUTHEASTERN TEXAS...
CHAMBERS COUNTY IN SOUTHEASTERN TEXAS...

* UNTIL 915 AM CDT

* AT 612 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. RAINFALL OF 1 TO 3 INCHES IS
EXPECTED WITH THESE STORMS. FLASH FLOODING IS EXPECTED TO BEGIN
SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
NORTHWESTERN PASADENA...BAYTOWN...DEER PARK...HUMBLE...KATY...
GALENA PARK...JACINTO CITY...JERSEY VILLAGE...BROOKSHIRE...HUNTERS
CREEK VILLAGE...BUNKER HILL VILLAGE...PINEY POINT VILLAGE...BEACH
CITY...SPRING VALLEY...BARRETT...GREATER FIFTH WARD...SPRING BRANCH
WEST...NEARTOWN / MONTROSE...SECOND WARD AND NEAR NORTHSIDE
HOUSTON.

Wed May 27, 2015 6:22 am

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
621 AM CDT WED MAY 27 2015

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
COASTAL WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX OUT 20
NM...
COASTAL WATERS FROM HIGH ISLAND TO FREEPORT TX OUT 20 NM...
GALVESTON BAY...
WATERS FROM FREEPORT TO MATAGORDA SHIP CHANNEL TX FROM 20 TO 60
NM...
WATERS FROM HIGH ISLAND TO FREEPORT TX FROM 20 TO 60 NM...

* UNTIL 815 AM CDT

* AT 621 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM...
CAPABLE OF PRODUCING WINDS 34 KNOTS OR GREATER...LOCATED OVER
SOUTHWESTERN TRINITY BAY...MOVING SOUTH AT 20 KNOTS.

* LOCATIONS IMPACTED INCLUDE...
GALVESTON A21...GALVESTON 256...BUOY 42035...GALVESTON 424...
GALVESTON 317...HIGH ISLAND A23...HIGH ISLAND A61...GALVESTON A8...
HEALD BANK...HIGH ISLAND 63...SURFSIDE JETTY...TABS BUOY B...
GALVESTON 150...HIGH ISLAND 157...GALVESTON 221...HIGH ISLAND
A179...NORTH JETTY...HIGH ISLAND 208...GALVESTON 282 AND GALVESTON
BAY ENTRANCE.

Wed May 27, 2015 6:27 am

The really bad storms came through around 4:30, this morning. I thought we'd be in the clear by now. But, in the last 10 minutes, or so, it has started thundering loudly & frequently, AGAIN!

May 2015 Record Setting May Rainfall Totals For Region

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