Small Craft Advisory 19, NWS Brownsville, TX

230 
WHUS74 KBRO 210022 AAA
MWWBRO

URGENT - MARINE WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
722 PM CDT SUN MAR 20 2016

...SEAS REMAIN HIGH OVER THE LOWER TEXAS COASTAL WATERS...

.WINDS AND SEAS REMAIN ARE SHOWING SIGN AS HIGH PRESSURE SLOWLY
BUILDS TOWARDS THE COAST. NOT UNTIL THE CENTER OF THE RIDGE
SETTLES OVER SOUTHEAST TEXAS WILL CONDITIONS IMPROVE BELOW
ADVISORY LEVELS.

CORRECTION FOR EXPIRATAION TIME NOW AT MIDNIGHT

GMZ150-155-170-175-210500-
/O.EXT.KBRO.SC.Y.0019.000000T0000Z-160321T0500Z/
COASTAL WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-
COASTAL WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-
WATERS FROM PORT MANSFIELD TO THE RIO GRANDE EXTENDING FROM 20 TO
60 NM-
WATERS FROM BAFFIN BAY TO PORT MANSFIELD EXTENDING FROM 20 TO
60 NM-
722 PM CDT SUN MAR 20 2016

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL MIDNIGHT CDT
TONIGHT...

* WINDS...NORTH TO NORTHEAST AT 15 TO 20 KNOTS GUST TO 25 KNOTS 
  THROUGH THE EVENING HOURS. 

* WAVES/SEAS...6 TO 8 FEET ON THE GULF OF MEXICO WATERS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OF 20 TO 33 KNOTS
ARE EXPECTED TO PRODUCE HAZARDOUS WAVE CONDITIONS FOR SMALL
CRAFT...GENERALLY WITH COMBINED SEAS OF 7 FEET OR MORE.
INEXPERIENCED MARINERS... ESPECIALLY THOSE OPERATING SMALLER
VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BROWNSVILLE TX
626 PM CDT SUN MAR 20 2016

.DISCUSSION...UPDATED FOR LATEST AVIATION DISCUSSION BELOW.

&&

.AVIATION...SURFACE HIGH PRESSURE BUILDS INTO THE REGION TONIGHT
WITH NORTH TO NORTHEAST WINDS DIMINISHING AND VFR CONDITIONS
PREVAILING.

&&

.PREV DISCUSSION... /ISSUED 301 PM CDT SUN MAR 20 2016/

SHORT TERM  /TONIGHT THROUGH MONDAY NIGHT/...500 MB AND SURFACE RIDGING
WILL PREVAIL OVER DEEP SOUTH TX THROUGH THE SHORT TERM PERIOD. THE
LATEST NAM FORECAST SOUNDINGS INDICATE THAT DRY AIR WILL MOVE INTO
THE REGION FROM THE NORTH AT MOST LEVELS OF THE ATMS WHICH WILL
MAINTAIN GENERALLY CLR SKIES THROUGH TOMORROW NIGHT. HOWEVER AS THE
SURFACE RIDGE SHIFTS FURTHER EAST THE LOW LEVEL FLOW OVER THE AREA
WILL BECOME MORE E-ESE WHICH WILL START INCREASING SOME MOISTURE
LEVELS NEAR THE SURFACE WHICH MAY ALLOW SOME RETURN OF SCT LOW LEVEL
CLD DECKS. WAA AND MODERATION OF THE AIRMASS OVER THE RGV WILL KICK
IN TOMORROW ALLOWING FOR THE TEMPS TO INCREASE STEADILY THROUGH THE
SHORT TERM. WILL BE GOING A BIT OVER ALL NUMERICAL GUIDANCE SETS IN
THE SHORT TERM AS BELIEVE THAT THE TEMP GUIDANCE IS UNDERESTIMATING
THE WARMUP IN THE TEMPS.

LONG TERM /TUESDAY THROUGH SUNDAY/...THE REGION WILL BE
UNDERNEATH ZONAL FLOW ALOFT TUESDAY WITH HIGH PRESSURE IN CONTROL
AT THE SURFACE. THE FLOW BECOMES MORE AMPLIFIED WEDNESDAY AND
THURSDAY AS A SHORTWAVE TROUGH MOVES ACROSS THE INTERMOUNTAIN
WEST AND EMERGES INTO THE CENTRAL PLAINS. THIS FEATURE WILL
SUPPORT STRONG CYCLOGENSIS IN THE HIGH PLAINS AND EVENTUAL
SURFACE FRONTAL SYSTEM. BREEZY TO WINDY CONDITIONS CAN BE
EXPECTED AS THE VALLEY WIND MACHINE CRANKS UP TUESDAY AND
WEDNESDAY. THE TRAILING COLD FRONT WILL MAKE A RUN AT DEEP SOUTH
TEXAS EARLY THURSDAY. TYPICAL LOW LEVEL SOUTHWESTERLY DRY AND
WARM NOSE EVIDENT IN AREA POINT SOUNDINGS SHOULD DAMPEN MOST
CONVECTION TO THE COASTAL COUNTIES AND COASTAL WATERS AND BE
ALONG AND JUST BEHIND THE FRONT. THURSDAY WILL BE BREEZY BEHIND
THE FRONT WITH CONDITIONS IMPROVING INTO THE WEEKEND.
TEMPERATUREWISE WEDNESDAY WILL HAVE HIGHS IN THE 90S OUT WEST
WITH SOUTHWESTERLY LOW LEVEL WINDS THEN TEMPERATURES COOLING
TO AROUND 80 AREA WIDE FRIDAY AND A SLOW WARMUP INTO THE WEEKEND.

MARINE...NOW THROUGH MONDAY NIGHT...MTRS AND BUOY DATA FROM NEAR
THE LOWER TX INDICATES THAT SCA CONDITIONS CONTINUE FOR BOTH THE BAY
AND GULF WATERS. HOWEVER THE OVERALL TREND IN THE BUOY AND MTR DATA
HAS BEEN ON THE DECREASE FOR BOTH WINDS AND SEAS. BELIEVE THAT THE
MARINE CONDITIONS WILL DROP BELOW SCA CONDITIONS LATER THIS EVENING
AS THE PGF DECREASES IN THE WAKE OF THE FRONT. WILL ALLOW THE SCA TO
CONTINUE THROUGH 00Z THIS EVENING. THIS MAY NEED TO BE EXTENDED FOR
A FEW HOURS IF THE ELEVATED WINDS AND SEAS IN THE GULF LINGER ON A
BIT LONGER. HOWEVER EXPECT MORE BENIGN CONDITIONS TO PREVAIL
THROUGHOUT TOMORROW AND TOMORROW NIGHT AS THE CENTER OF THE SURFACE
RIDGE DROPS OVER THE TX COASTLINE.

TUESDAY THROUGH FRIDAY...ADVERSE MARINE CONDITIONS ARE
EXPECTED TUESDAY THROUGH THURSDAY AS WINDS INCREASE ACROSS THE
COASTAL WATERS IN RESPOND TO DEEPENING LOW PRESSURE ACROSS THE
SOUTHERN PLAINS. ADVISORIES WILL POSSIBLY BE NEEDED BY TUESDAY
AFTERNOON THROUGH THURSDAY. SOUTHEASTERLY FLOW WILL BEGIN THE LONG
TERM PERIOD THEN SWITCH TO NORTHERLY THURSDAY AS A COLD FRONT
SWEEPS THROUGH. A PERIOD OF GALE FORCE GUSTS IS POSSIBLE AS WELL
THURSDAY. CONDITIONS IMPROVE FOR FRIDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
BAYVIEW/PORT ISABEL  53  74  59  77 /   0   0   0   0
BROWNSVILLE          49  75  58  78 /   0   0   0   0
HARLINGEN            48  77  56  80 /   0   0   0   0
MCALLEN              48  79  56  82 /   0   0   0   0
RIO GRANDE CITY      46  79  55  85 /   0   0   0   0
SOUTH PADRE ISLAND   56  72  62  74 /   0   0   0   0

&&

.BRO WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...SMALL CRAFT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR GMZ150-155-
     170-175.

&&

THIS PRODUCT IS ALSO AVAILABLE ON THE WEB AT:
HTTP://WEATHER.GOV/RGV

59...AVIATION/SHORT TERM

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BROWNSVILLE TX
422 PM CDT SUN MAR 20 2016

TXZ248>257-212130-
ZAPATA-JIM HOGG-BROOKS-KENEDY-STARR-HIDALGO-INLAND WILLACY-
INLAND CAMERON-COASTAL WILLACY-COASTAL CAMERON-
422 PM CDT SUN MAR 20 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF DEEP SOUTH
TEXAS.

.DAY ONE...TONIGHT

THERE IS A HIGH RISK OF RIP CURRENTS AT THE BEACHES OF SOUTH
PADRE ISLAND AND BOCA CHICA BEACH.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

AN ELEVATED RISK OF RIP CURRENTS IS POSSIBLE MONDAY BUT IS
EXPECTED NEXT TUESDAY THROUGH SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

GMZ130-132-135-150-155-170-175-212130-
LAGUNA MADRE FROM THE PORT OF BROWNSVILLE TO THE ARROYO COLORADO-
LAGUNA MADRE FROM THE ARROYO COLORADO TO 5 NM NORTH OF PORT
MANSFIELD TX-
LAGUNA MADRE FROM 5 NM NORTH OF PORT MANSFIELD TO BAFFIN BAY TX-
COASTAL WATERS FROM PORT MANSFIELD TO THE RIO GRANDE OUT 20 NM-
COASTAL WATERS FROM BAFFIN BAY TO PORT MANSFIELD OUT 20 NM-
WATERS FROM PORT MANSFIELD TO THE RIO GRANDE EXTENDING FROM 20 TO
60 NM-
WATERS FROM BAFFIN BAY TO PORT MANSFIELD EXTENDING FROM 20 TO
60 NM-
422 PM CDT SUN MAR 20 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE GULF OF
MEXICO AND THE LAGUNA MADRE.

.DAY ONE...TONIGHT

A SMALL CRAFT ADVISORY WILL CONTINUE FOR THE GULF WATERS THIS
EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SMALL CRAFT ADVISORY MAY BE NEEDED TUESDAY AFTERNOON FOR THE
LAGUNA MADRE AND THE GULF WATERS AND ARE LIKELY WEDNESDAY THROUGH
FRIDAY FOR ALL COASTAL WATERS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.