weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

3 products issued by NWS for: Houston TX
Share |


Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
623 AM CST SAT DEC 3 2016

TXZ163-164-176>179-195>200-210>214-226-227-235>238-041230-
AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-
GALVESTON-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA-
MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON-
WHARTON-
623 AM CST SAT DEC 3 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...TODAY AND TONIGHT

FLASH FLOOD WATCH IN EFFECT FOR ALL OF SOUTHEAST TEXAS AND A
COASTAL FLOOD ADVISORY IN EFFECT FOR PORTIONS OF THE COAST.

WIDESPREAD RAINFALL OVERNIGHT OF 0.25 TO 3 INCHES BEGINNING THE
PROCESS OF SATURATING THE SOILS ACROSS THE REGION. UNUSUALLY
MOISTURE RICH AIR FOR DECEMBER FLOWING INTO THE REGION WILL
INTERACT WITH A STATIONARY FRONT NEAR THE UPPER TEXAS COAST TODAY.
A SLOW MOVING UPPER LEVEL LOW PRESSURE SYSTEM MOVING INTO AND THEN
THROUGH THE STATE WILL PROVIDE ABUNDANT LIFT TO THE SATURATED
AIRMASS LEADING TO PERIODS OF RAIN MIXED WITH BANDS OR CLUSTERS OF
SHOWERS AND THUNDERSTORMS. THE STEADY LIGHT RAIN SHOULD NOT POSE
A THREAT OF FLOODING BUT THE BANDS THAT FORM MAY PERSIST OVER THE
SAME AREAS INCREASING THE FLOOD THREAT. THESE SHOWERS AND
THUNDERSTORMS WILL BE CAPABLE OF HEAVY RAINFALL. HEAVY OR INTENSE
RAINFALL WILL LIKELY LEAD TO SHORT PERIODS OF STREET FLOODING AND
FLOODING OF LOW LYING AREAS. THIS WILL BE A WEEKEND LONG EVENT SO
RAIN WILL NOT FALL ALL AT ONCE WITH TIME FOR STREETS AND CREEKS TO
DRAIN BEFORE THE NEXT ROUND OF RAIN RETURNS. WIDESPREAD RAINFALL
OF 1 TO 3 INCHES WITH THE POSSIBILITY OF BANDS OF 5 TO 7 INCHES
WITH SOME ISOLATED PLACES RECEIVING 8 TO 11 INCHES. ROAD PONDING
AND STREET FLOODING SHOULD BE THE MAIN HEAVY RAIN THREATS TODAY.
ELEVATED TIDE AND THE HEAVY RAINFALL MAY COAST COASTAL FLOODING
MAINLY FROM THE FREEPORT AREA UP THROUGH GALVESTON BAY AND TO HIGH
ISLAND.

AS THE WARM FRONT CREEPS INLAND TODAY ISOLATED BRIEF TORNADOES
WILL BE POSSIBLE IN THE COASTAL COUNTIES. THESE SHOULD BE SHORT
LIVED. THE TORNADO THREAT SHOULD DIMINISH LATE THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

ON SUNDAY AS THE UPPER LOW PRESSURE SYSTEM MOVES EAST THE THREAT
FOR HEAVY RAINFALL ACROSS SOUTHEAST TEXAS SHOULD BEGIN TO SHIFT
SOUTHWARD THROUGHOUT THE DAY. THE HEAVIER RAINFALL AMOUNTS SHOULD
BE SOUTH OF A COLUMBUS TO CONROE TO LIVINGSTON LINE. THE THREAT
FOR FLASH FLOODING WILL CONTINUE AND RIVER...STREAMS AND BAYOUS
MAY BE MORE LIKELY TO BECOME INVOLVED AFTER SATURDAYS HEAVY RAINS.
THE FRONT SHOULD MOVE BACK OFFSHORE AND THE THREAT OF TORNADOES
SHOULD DIMINISH. WATERSPOUTS WILL STILL BE POSSIBLE IN THE COASTAL
WATERS. DURING THE DAY MONDAY A PACIFIC COLD FRONT SHOULD SWEEP
THROUGH SOUTHEAST TEXAS BRINGING ONE LAST GASP OF HEAVY RAINFALL
AND A POSSIBILITY AGAIN OF SEVERE THUNDERSTORMS MAINLY ALONG AND
EAST OF AN ANGLETON TO HUNTSVILLE LINE. THE FLASH FLOOD WATCH MAY
NEED TO BE EXTENDED INTO MONDAY.

A STRONG COLD FRONT SWEEPS THROUGH THE REGION LATE WEDNESDAY AND
MUCH COLDER TEMPERATURES WILL OCCUR. THE FIRST FREEZE OF THE
SEASON MAY DEVELOP FRIDAY MORNING.

.SPOTTER INFORMATION STATEMENT...
HEIGHTENED SPOTTER AWARENESS OVER THE NEXT SEVERAL DAYS.

$$



Coastal Flood Advisory

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
351 AM CST SAT DEC 3 2016

...COASTAL FLOODING CONCERNS CONTINUE THROUGH EARLY SUNDAY MORNING...

.EASTERLY WINDS AND ELEVATED SEAS WILL KEEP TIDE LEVELS ABOVE
NORMAL THROUGH EARLY SUNDAY MORNING. WATER LEVELS WILL APPROACH 4
FEET EARLY THIS MORNING... AND REMAIN NEAR TO ABOVE 3 FEET AT
TIMES OF HIGH TIDE THROUGH EARLY SUNDAY MORNING.

TXZ213-214-237-040900-
/O.EXT.KHGX.CF.Y.0008.000000T0000Z-161204T0900Z/
BRAZORIA-CHAMBERS-HARRIS-
351 AM CST SAT DEC 3 2016

...COASTAL FLOOD ADVISORY NOW IN EFFECT UNTIL 3 AM CST SUNDAY...

* COASTAL FLOODING...WATER LEVELS OF BETWEEN 3.3 FEET TO 3.8 FEET
  WILL CAUSE COASTAL FLOODING ALONG EAST FACING SHORELINES TODAY.
  WATER LEVELS ARE EXPECTED TO PEAK BETWEEN 3.2 AND 3.5 FEET AT
  TIMES OF HIGH TIDE TONIGHT.

* TIMING...THROUGH EARLY SUNDAY MORNING.

* IMPACTS...GULF AND BAY WATERS MAY OVERCOME DUNES AND POSSIBLY
  OVERWASH SECTIONS OF THE BLUE WATER HIGHWAY IN BRAZORIA COUNTY.
  LOW LYING ROADWAYS...SUCH AS TODDVILLE ROAD IN SEABROOK...MAY
  ALSO EXPERIENCE MINOR FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

$$




Flash Flood Watch

FLOOD WATCH
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
301 AM CST SAT DEC 3 2016

TXZ163-164-176>179-195>200-210>214-226-227-235>238-032015-
/O.NEW.KHGX.FF.A.0012.161203T0901Z-161205T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-
GALVESTON-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA-
MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON-
WHARTON-
INCLUDING THE CITIES OF...ALVIN...ANAHUAC...ANGLETON...BAY CITY...
BELLVILLE...BRENHAM...BROOKSHIRE...BRYAN...CALDWELL...CLEVELAND...
COLDSPRING...COLLEGE STATION...COLUMBUS...CONROE...CORRIGAN...
CROCKETT...DAYTON...EAGLE LAKE...EDNA...EL CAMPO...FREEPORT...
FRIENDSWOOD...GALVESTON...GROVETON...HEMPSTEAD...HOUSTON...
HUMBLE...HUNTSVILLE...KATY...LAKE JACKSON...LAKE SOMERVILLE...
LEAGUE CITY...LIBERTY...LIVINGSTON...MADISONVILLE...
MISSOURI CITY...MONT BELVIEU...NAVASOTA...ONALASKA...PALACIOS...
PASADENA...PEARLAND...PIERCE...PRAIRIE VIEW...RICHMOND...
ROSENBERG...SEALY...SHEPHERD...SUGAR LAND...TEXAS CITY...
THE WOODLANDS...TOMBALL...TRINITY...WEIMAR...WHARTON...WILLIS...
WINNIE
301 AM CST SAT DEC 3 2016

...FLASH FLOOD WATCH IN EFFECT THROUGH SUNDAY EVENING...

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF SOUTHEAST TEXAS AND
  SOUTHEAST TEXAS...INCLUDING THE FOLLOWING COUNTIES...IN
  SOUTHEAST TEXAS...JACKSON. IN SOUTHEAST TEXAS...AUSTIN...
  BRAZORIA...BRAZOS...BURLESON...CHAMBERS...COLORADO...FORT
  BEND...GALVESTON...GRIMES...HARRIS...HOUSTON...LIBERTY...
  MADISON...MATAGORDA...MONTGOMERY...POLK...SAN JACINTO...
  TRINITY...WALKER...WALLER...WASHINGTON AND WHARTON.

* THROUGH SUNDAY EVENING

* HEAVY RAINFALL WILL BE POSSIBLE OVER THE WEEKEND AND POSSIBLY
  INTO MONDAY. UNUSUALLY MOISTURE RICH AIR FOR DECEMBER FLOWING
  INTO THE REGION WILL INTERACT WITH A STATIONARY FRONT NEAR THE
  UPPER TEXAS COAST TODAY AND SUNDAY. A SLOW MOVING UPPER LEVEL
  LOW PRESSURE SYSTEM MOVING INTO AND THEN THROUGH THE STATE WILL
  PROVIDE ABUNDANT LIFT TO THE SATURATED AIRMASS LEADING TO
  PERIODS OF RAIN MIXED WITH BANDS OR CLUSTERS OF SHOWERS AND
  THUNDERSTORMS. THE STEADY LIGHT RAIN SHOULD NOT POSE A THREAT OF
  FLOODING BUT THE BANDS THAT FORM MAY PERSIST OVER THE SAME AREAS
  INCREASING THE FLOOD THREAT. THESE SHOWERS AND THUNDERSTORMS
  WILL BE CAPABLE OF HEAVY RAINFALL. ALTHOUGH THE SOIL ACROSS THE
  REGION HAS BEEN RELATIVELY DRY TWO DAYS OF RAINFALL IS LIKELY
  BEGIN TO SATURATE THE SOIL. HEAVY OR INTENSE RAINFALL WILL
  LIKELY LEAD TO STREET FLOODING AND FLOODING OF LOW LYING AREAS.
  BY SUNDAY THE LIKELIHOOD THAT SMALL STREAMS AND BAYOUS RISE
  WILL INCREASE AND THESE MAY EVENTUALLY FLOOD. RAINFALL AMOUNTS
  FORECAST ACROSS THE REGION RANGE FROM WIDESPREAD 1 TO 3 INCHES
  WITH THE POSSIBILITY OF BANDS OF 5 TO 7 INCHES WITH SOME
  ISOLATED PLACES RECEIVING 8 TO 11 INCHES. THE UPPER LEVEL LOW
  PRESSURE SYSTEM MOVES THROUGH THE REGION MONDAY AND THIS SHOULD
  SWEEP IN DRY AIR AND END THE THREAT OF HEAVY RAINFALL BY LATE
  MONDAY AFTERNOON.

* STREET FLOODING AND FLOODING OF LOW LYING AREAS WILL BE THE MOST
  LIKELY IMPACTED TODAY AND TONIGHT. SMALL STREAMS AND BAYOUS MAY
  BECOMING INVOLVED IN FLOOD ON SUNDAY AS WELL AS ADDITIONAL
  STREET FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$




U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE