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    AXNT20 KNHC 112348
    TWDAT
    TROPICAL WEATHER DISCUSSION
    NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
    TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL
    AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTIONS
    OF SOUTH AMERICA...AND ATLANTIC OCEAN TO THE AFRICAN COAST
    FROM THE EQUATOR TO 32N. THE FOLLOWING INFORMATION IS BASED
    ON SATELLITE IMAGERY...METEOROLOGICAL ANALYSIS...WEATHER
    OBSERVATIONS...AND RADAR.
    BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY
    THROUGH 2315 UTC.
    ...THE ITCZ...
    THE ITCZ AXIS IS CENTERED ALONG 7N10W 3N20W CROSSING THE
    EQUATOR ALONG 28W TO NORTHEASTERN BRAZIL NEAR 3S40W. ISOLATED
    MODERATE CONVECTION IS FROM 6N-9N BETWEEN 14W-17W.
    ...DISCUSSION...
    THE GULF OF MEXICO...
    AS OF 2100 UTC...A 1000 MB LOW IS CENTERED OVER THE NW GULF OF
    MEXICO NEAR 26N94W. A SURFACE TROUGH EXTENDS S FROM THE LOW TO
    THE BAY OF CAMPECHE NEAR 19N95W. ANOTHER 1004 MB LOW IS CENTERED
    OVER N FLORIDA NEAR 30N84W. A SMALL COLD FRONT EXTENDS W FROM
    THIS LOW CENTER TO 28N90W. OVERCAST MULTILAYERED CLOUDS ARE OVER
    THE GULF N OF 25N. RADAR IMAGERY SHOWS RAIN AND ISOLATED
    THUNDERSTORMS OVER CENTRAL AND NORTH FLORIDA AND SURROUNDING
    WATERS FROM 27N-30N BETWEEN 78W-84W. IN THE UPPER LEVELS...ZONAL
    FLOW PREVAILS WITH A 130-150 KT JETSTREAM OVER THE N GULF N OF
    24N. EXPECT IN 24 HOURS...FOR THE 1000 MB LOW TO MOVE E TO THE W
    OF TAMPA FLORIDA. A COLD FRONT WILL EXTEND S FROM THE LOW TO THE
    YUCATAN PENINSULA WITH CONVECTION. ALSO EXPECT THE 1004 MB LOW
    TO MOVE NE TO THE COAST OF SOUTH CAROLINA. A COLD FRONT WILL
    EXTEND S FROM THIS LOW TO CENTRAL FLORIDA WITH CONVECTION.
    THE CARIBBEAN SEA...
    THE TAIL END OF AN OLD STATIONARY FRONT IS OVER THE LEEWARD
    ISLANDS FROM 17N60W TO 16N64W. SCATTERED SHOWERS ARE WITHIN 60
    NM N OF THE FRONT. AN AREA OF BROKEN TO OVERCAST LOW CLOUDS AND
    ISOLATED SHOWERS ARE ALSO OVER THE NE CARIBBEAN FROM 16N-19N E
    OF 67W. ELSEWHERE...OVERCAST MULTILAYERED CLOUDS WITH RAIN IS
    INLAND OVER N COLOMBIA AND N VENEZUELA FROM 4N-11N BETWEEN
    67W-78W. 15-20 KT TRADEWINDS ARE OVER THE CARIBBEAN SEA WITH
    STRONGEST WINDS ALONG THE COAST OF N COLOMBIA. WINDS ARE FROM
    THE NE OVER THE LEEWARD ISLANDS...FROM THE E OVER THE CENTRAL
    CARIBBEAN...AND FROM THE SE OVER THE W CARIBBEAN W OF 80W. IN
    THE UPPER LEVELS...AN UPPER LEVEL RIDGE IS PRODUCING W TO NW
    UPPER LEVEL WINDS. STRONG SUBSIDENCE IS OVER THE ENTIRE
    CARIBBEAN SEA AND CENTRAL AMERICA N OF 12N. EXPECT OVER THE NEXT
    24 HOURS...FOR MORE SHOWERS OVER THE LEEWARD ISLANDS...AND OVER
    PANAMA AND THE SW CARIBBEAN S OF 12N.
    THE ATLANTIC OCEAN...
    A 1023 MB HIGH IS CENTERED OVER THE W ATLANTIC NEAR 34N61W. A
    1011 MB LOW IS CENTERED OVER THE CENTRAL ATLANTIC NEAR 31N35W. A
    COLD FRONT EXTENDS SW FROM THE LOW CENTER TO 24N40W 19N50W. A
    STATIONARY FRONT CONTINUES TO THE LEEWARD ISLANDS AT 17N60W.
    OVERCAST LOW CLOUDS AND SCATTERED SHOWERS ARE WITHIN 180 NM N OF
    THE FRONTS. A WARM FRONT ALSO EXTENDS SE FROM THE LOW CENTER TO
    28N26W. SCATTERED MODERATE CONVECTION IS N OF THE WARM FRONT
    FROM 31N-34N BETWEEN 30W-35W. SCATTERED SHOWERS ARE ALSO WITHIN
    90 NM OF THE WARM FRONT. A COLD FRONT IS OVER THE E ATLANTIC
    FROM 30N10W TO 26N20W 28N26W. IN THE UPPER LEVELS...A RIDGE IS
    OVER THE W ATLANTIC W OF 55W. AN UPPER LEVEL TROUGH IS OVER THE
    CENTRAL ATLANTIC N OF 10N BETWEEN 35W-55W. AN UPPER LEVEL RIDGE
    IS OVER THE E ATLANTIC E OF 35W. EXPECT...THE ATLANTIC SURFACE
    LOW TO MOVE NE OVER THE NEXT 24 HOURS TO NEAR 34N32W WITH
    ASSOCIATED COLD FRONT EXTENDING SW TO 18N50W WITH SHOWERS.
    FOR ADDITIONAL INFORMATION PLEASE VISIT
    HTTP://WWW.HURRICANES.GOV/MARINE


    forecast by FORMOSA
    updated at 705 PM EST THU MAR 11 2010

    AXPZ20 KNHC 120334
    TWDEP
    TROPICAL WEATHER DISCUSSION
    NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
    0405 UTC FRI MAR 12 2010
    TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM
    THE EQUATOR TO 32N...EAST OF 140W.
    BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
    0145 UTC.
    ...ITCZ...
    THE INTERTROPICAL CONVERGENCE ZONE WAS ANALYZED ALONG A LINE
    FROM 04N77W TO 06N90W TO 05N105W TO 07N115W TO 02N140W.
    SCATTERED MODERATE WITH ISOLATED STRONG CONVECTION WAS WITHIN
    180 NM S OF THE ITCZ AXIS BETWEEN 84W AND 96W AND WITHIN 90 NM N
    OF AXIS THE ITCZ AXIS BETWEEN 83W AND 89W. SCATTERED MODERATE
    CONVECTION WAS WITHIN 300 NM SW OF THE ITCZ AXIS BETWEEN 109W
    AND 118W.
    ...DISCUSSION...
    A PROGRESSIVE PATTERN OVER N WATERS WILL SEE THE BROAD UPPER
    TROUGH OVER NW MEXICO FINALLY PUSH EASTWARD AS THE NEXT DEEP
    LAYERED TROUGH MOVES INTO NW WATERS OVERNIGHT TONIGHT. A W-SW
    UPPER JET IN EXCESS OF 130 KT WILL REMAIN CENTERED ALONG 25N E
    OF 120W THROUGH FRI NIGHT WHEN THE JET WILL PUSH E ALONG THE
    LEADING EDGE OF THE DEEP LAYERED TROUGH. THE W-SW UPPER LEVEL
    WINDS FEEDING INTO THE JET ARE BEGINNING TO LOSE THEIR
    CONNECTION TO TROPICAL MOISTURE. THIS IS EVIDENT BY THE
    DISSIPATING BAND OF CIRRUS CLOUDS FOUND WITHIN 180 NM OF A LINE
    FROM 23N100W TO 16N117W. THE UPPER TROUGH OVER NW MEXICO FROM
    30N104W TO 23N110W WILL MOVE E TO MAKE WAY FOR THE DEEP LAYERED
    TROUGH BY FRI WITH THE COLD FRONT ASSOCIATED WITH THIS NEW
    TROUGH EXPECTED TO BE WEAK INITIALLY. THE LARGEST IMPACT FROM
    THIS COLD FRONT OVERNIGHT TONIGHT AND ON FRI WILL BE A NEW SURGE
    OF NW SWELL PUSHING INTO THE AREA WITH ITS ARRIVAL...WITH
    SIGNIFICANT WAVE HEIGHTS INCREASING TO 13 FT NW OF THE FRONT.
    THE FRONT WILL DISSIPATE AS IT MOVES INTO NORTHERN BAJA
    CALIFORNIA AND NE WATERS BY SAT EVENING...BUT THE PRES GRADIENT
    IS EXPECTED TO BUILD BETWEEN THE FRONTAL TROUGH AND HIGH PRES
    FOLLOWING CLOSELY BEHIND IT AS THE NORTHERN STREAM PATTERN
    BECOMES MORE AMPLIFIED. THIS WILL ALLOW FOR NW TO N WINDS TO
    INCREASE ABOVE 20 KT OVER NE WATERS OFF THE W COAST OF BAJA
    CALIFORNIA ON SAT.
    A BROAD UPPER LEVEL ANTICYCLONIC CIRCULATION CENTERED NEAR
    09N107W INFLUENCES THE REMAINDER OF THE DISCUSSION AREA. A RIDGE
    AXIS EXTENDS FROM THE ANTICYCLONE NE INTO THE GULF OF FONSECA
    WHILE A SECOND RIDGE AXIS EXTENDS SW OF THE ANTICYCLONE TO
    07N135W. SCATTERED MODERATE CONVECTION WAS OBSERVED S OF THE
    ITCZ BETWEEN 109W AND 118W IN THE REGION OF MODERATE UPPER LEVEL
    DIFFLUENCE ASSOCIATED WITH THE ANTICYCLONE ALOFT. PLEASE SEE THE
    SECTION ABOVE FOR DETAILS. FARTHER E...SCATTERED MODERATE TO
    STRONG CONVECTION WAS NEAR THE ITCZ BETWEEN 83W AND 96W. THIS
    AREA LIES IN A POOL OF 2.25 TO 2.50 INCH PRECIPITABLE WATER
    VALUES AND UNDER MODERATE UPPER LEVEL DIFFLUENCE. THIS DIFFLUENT
    REGION ALOFT IS EXPECTED TO SHIFT W FROM 90W TO 100W PRIMARILY S
    OF 05N OVER THE NEXT FEW DAYS. THEREFORE...LOOK FOR THE
    STRONGEST CONVECTION TO SHIFT W AS WELL.
    AT THE SURFACE...1025 MB HIGH PRES LIES OVER NW WATERS NEAR
    28N132W WITH A RIDGE AXIS EXTENDING SE TO NEAR 15N105W WHILE LOW
    PRES AT THE SURFACE ASSOCIATED WITH THE LEADING EDGE OF THE
    BROAD TROUGH ALOFT OVER NW MEXICO HAS SHIFTED EASTWARD INTO THE
    WESTERN GULF OF MEXICO WITH 1000 MB LOW PRES ANALYZED NEAR
    26N94W. THE PRES GRADIENT ALONG THE MEXICAN PACIFIC COAST NEAR
    20N HAS STRENGTHENED BETWEEN THIS LOW PRES TO THE E AND THE
    RIDGE TO THE W. NW TO N WINDS ARE EXPECTED TO HOVER NEAR 20 KT
    THERE AND INTO THE SOUTHERN GULF OF CALIFORNIA THROUGH FRI.
    THERE ARE A FEW OBSERVATIONS TO CONFIRM THESE CONDITIONS WITH
    SHIP ZCDF4 REPORTED 25 KT WINDS NEAR 17N100W AT 0000 UTC AND
    SHIP A8EH2 REPORTED 20 KT WINDS NEAR 19N108W AT 1800 UTC.
    SOUTH OF THE SURFACE RIDGE AXIS LIES A BROAD AREA OF STRONG NE
    TRADE WINDS. THE 1814 ASCAT PASS SHOWED 20 TO 25 KT WINDS W OF
    120W FROM 06N TO 21N. THE HIGH PRES OVER NW WATERS WILL WEAKEN
    AHEAD OF THE APPROACHING COLD FRONT TONIGHT. THIS WILL SHRINK
    THE AREA OF STRONG TRADE WINDS WESTWARD A FEW DEGREES FRI WITH
    LITTLE CHANGE EXPECTED IN THE AREA AND STRENGTH OF THE TRADES
    SAT.
    GAP WINDS...
    THE NEXT TEHUANTEPEC GAP WIND EVENT IS FORECAST TO BEGIN
    TOMORROW EVENING AS A FAST MOVING COLD FRONT SWINGS THROUGH THE
    WESTERN GULF OF MEXICO. WINDS OF 20 TO 30 KT ARE EXPECTED SAT.
    THE EVENT IS EXPECTED TO BE SHORT LIVED...WITH WINDS FORECAST TO
    DROP BELOW 20 KT OVERNIGHT SAT NIGHT.
    FOR ADDITIONAL INFORMATION PLEASE VISIT
    HTTP://WWW.HURRICANES.GOV/MARINE


    forecast by SCHAUER

    Updated on: Fri, 12 Mar 2010 05:20:12 GMT
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  • Outlook
    Updated on: Fri, 12 Mar 2010 05:20:12 GMT
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  • Atlantic

    ATLANTIC PUBLIC/MARINE TROPICAL DISTURBANCE MESSAGES
    ISSUED IN THE LAST 6 HOURS
    END OF REPORT


    Updated on: Fri, 12 Mar 2010 05:20:12 GMT
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  • Pacific

    EASTERN/CENTRAL PACIFIC TROPICAL DISTURBANCE MESSAGES
    ISSUED IN THE LAST 6 HOURS
    END OF REPORT


    Updated on: Fri, 12 Mar 2010 05:20:12 GMT
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COASTAL ALERTS

WIND SPEED / DIRECTION

CURRENT CONDITIONS

MORE BEACH AND BOATING >
  • Buoy Map
  • Buoy Data
    buoy

    Houston (42035)

    29.0°, -94.8°
    Air temperature:  55°
    Water temperature:  59°
    Pressure:  1005.3 (+2.2) in.
    Wind speed:  NW at 07 kts.
    Wind gust:  10 kts.
    Wave height:  0.7 m.
    Wave period:  8 s.
    buoy

    Houston (SRST2)

    29.67°, -94.05°
    Air temperature:  58°
    Water temperature:  no report
    Pressure:  1005.7 (+2.3) in.
    Wind speed:  NW at 20 kts.
    Wind gust:  25 kts.
    Wave height:  no report

    Gulf (42019)

    27.91°, -95.36°
    no report
    buoy

    Corpus Christi (PTAT2)

    27.83°, -97.05°
    Air temperature:  59°
    Water temperature:  63°
    Pressure:  1006.9 (+3.6) in.
    Wind speed:  0.00 kts.
    Wind gust:  01 kts.
    Wave height:  no report
    buoy

    Padre Island (42020)

    26.97°, -96.69°
    Air temperature:  64°
    Water temperature:  64°
    Pressure:  1005.0 (+3.0) in.
    Wind speed:  E at 14 kts.
    Wind gust:  18 kts.
    Wave height:  1.3 m.
    Wave period:  8 s.
    buoy

    42002

    25.79°, -93.67°
    Air temperature:  69°
    Water temperature:  75°
    Pressure:  1002.3 (+2.2) in.
    Wind speed:  10 kts.
    Wind gust:  10 kts.
    Wave height:  1.1 m.
    Wave period:  6 s.

    42041

    no report
    Fri, 12 Mar 2010 05:15:04 GMT

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