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    AXNT20 KNHC 131714
    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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
    1715 UTC.
    ...ITCZ...
    ITCZ AXIS IS CENTERED ALONG 8N12W 3N30W 3N40W EQ50W. WIDELY
    SCATTERED MODERATE CONVECTION IS FROM 3N-7N BETWEEN 13W-17W...
    AND FROM 1N-5N BETWEEN 33W-40W.
    ...DISCUSSION...
    GULF OF MEXICO...
    A 1017 MB HIGH IS CENTERED OVER THE SW GULF OF MEXICO NEAR
    23N93W. ANTICYCLONIC WINDS WITH MOSTLY FAIR WEATHER COVERS THE
    AREA. THE SURFACE PRESSURE GRADIENT REMAINS TIGHT OVER THE NE
    GULF...FLORIDA...AND THE STRAITS OF FLORIDA WHERE 20-25 KT
    SURFACE WINDS ARE NOTED. IN THE UPPER LEVELS...ZONAL FLOW
    PREVAILS WITH A 130-150 KT JETSTREAM OVER THE N GULF N OF 23N.
    STRONG SUBSIDENCE IS OVER THE ENTIRE AREA. EXPECT...THE SURFACE
    HIGH TO DOMINATE THE GULF FOR THE NEXT 24 HOURS WITH FAIR
    WEATHER.
    CARIBBEAN SEA...
    A COLD FRONT EXTENDS FROM CENTRAL CUBA TO THE COAST OF NICARAGUA
    ALONG 23N78W 18N81W 12N83W. NW WINDS ARE W OF THE FRONT WHILE S
    WINDS ARE E OF THE FRONT. 15-20 KT TRADEWINDS ARE OVER THE
    CENTRAL AND EASTERN CARIBBEAN E OF 75W. BROKEN TO OVERCAST
    MULTILAYERED CLOUDS WITH SCATTERED SHOWERS ARE OVER CENTRAL CUBA
    ALONG THE FRONT. BROKEN TO OVERCAST LOW CLOUDS WITH SCATTERED
    SHOWERS ARE ALSO ALONG THE N COAST OF HONDURAS FROM 15N-17N
    BETWEEN 84W-89W. MOSTLY FAIR WEATHER IS OVER THE REMAINDER OF
    THE CARIBBEAN. IN THE UPPER LEVELS...AN UPPER LEVEL RIDGE IS
    OVER THE CARIBBEAN WITH AXIS ALONG 13N. STRONG SUBSIDENCE IS
    OVER THE ENTIRE CARIBBEAN SEA AND CENTRAL AMERICA. EXPECT OVER
    THE NEXT 24 HOURS...FOR THE COLD FRONT TO DRIFT E AND EXTEND
    FROM E CUBA TO COSTA RICA WITH SHOWERS.
    ATLANTIC OCEAN...
    A COLD FRONT IS OVER THE W ATLANTIC FROM 32N74W TO CENTRAL CUBA
    NEAR 23N78W. SCATTERED SHOWERS ARE WITHIN 30 NM OF THE FRONT.
    PATCHES OF WIDELY SCATTERED MODERATE CONVECTION ARE E OF THE
    FRONT FROM 25N-32N BETWEEN 65W-74W. FURTHER EAST A 1023 MB HIGH
    IS CENTERED OVER THE CENTRAL ATLANTIC NEAR 33N51W. A STATIONARY
    FRONT IS OVER THE E ATLANTIC ALONG 32N29W 18N43W. SCATTERED
    SHOWERS ARE WITHIN 90 NM OF THE FRONT. IN ADDITION SCATTERED
    MODERATE CONVECTION IS FROM 28N-32N BETWEEN 29W-33W. IN THE
    UPPER LEVELS...A RIDGE IS OVER THE W ATLANTIC W OF 50W. AN UPPER
    LEVEL TROUGH IS OVER THE CENTRAL ATLANTIC N OF 10N BETWEEN
    30W-50W. AN UPPER LEVEL RIDGE IS OVER THE E ATLANTIC E OF 30W.
    EXPECT IN 24 HOURS FOR...THE W ATLANTIC COLD FRONT TO EXTEND
    FROM 32N63W TO E CUBA WITH CONVECTION. ALSO EXPECT THE E
    ATLANTIC FRONT TO MOVE E AGAIN TO 32N23W WITH SHOWERS.
    FOR ADDITIONAL INFORMATION PLEASE VISIT
    HTTP://WWW.HURRICANES.GOV/MARINE


    forecast by FORMOSA
    updated at 105 PM EST SAT MAR 13 2010

    AXPZ20 KNHC 131604
    TWDEP
    TROPICAL WEATHER DISCUSSION
    NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
    1605 UTC SAT MAR 13 2010
    TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM
    THE EQUATOR TO 32N...EAST OF 140W.
    BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
    1545 UTC.
    ...ITCZ...
    THE ITCZ AXIS WAS CENTERED ALONG 08N77W TO 04N90W TO 05N120W TO
    06N140W.
    ...DISCUSSION...
    MOST SIGNIFICANT FEATURE TODAY IS THE TEHUANTEPEC GAP WIND EVENT
    ONGOING THIS MORNING. AN EARLIER 0318 UTC ASCAT PASS SHOWED A
    FEW N 35 KT WIND VECTORS. GIVEN THE UNSTABLE SST-BOUNDARY LAYER
    CONDITIONS...ALL MODELS...GFS...ECMWF...AND NAM...ARE SHOWING
    JUST BELOW GALE FORCE...AND THE TYPICAL DIURNAL CYCLE OF THESE
    EVENTS PEAKING LATE NIGHT-EARLY MORNING...I ADDED THIS AS A GALE
    WARNING FOR 12 UTC. FORCING FOR THE EVENT COLLAPSES IMMEDIATELY
    AND ALONG WITH THE TYPICAL DIURNAL WEAKENING DURING THE DAY
    MEANS THAT IT SHOULD DROP BELOW GALE FORCE BY THIS AFTERNOON AND
    BELOW OUR 20 KT THRESHOLD BY TOMORROW MORNING. NO OTHER GAP
    WIND EVENTS ARE ONGOING OR ANTICIPATED TO OCCUR UNTIL TUESDAY
    NIGHT WHEN THE NEXT TEHUANTEPEC EVENT IS LIKELY TO BEGIN.
    MODERATE NW TO N WINDS IN THE GULF OF CALIFORNIA ARE ANTICIPATED
    TO WEAKEN TODAY AS THE PRESSURE GRADIENT FORCING SLACKENS. BUT
    THIS IS SHORT-LIVED AS HIGH PRESSURE REBUILDS JUST WEST OF
    CALIFORNIA AND CYCLOGENESIS OCCURS OVER NORTHERN MEXICO...NEW
    MEXICO AND TEXAS. NW TO NW 20 TO 25 KT WINDS PARALLELING THE
    GULF SHOULD CONTINUE OVER AT LEAST THE NEXT TWO DAYS. WEST OF
    BAJA NW TO N 20 TO 25 KT WINDS SHOULD GENERALLY CONTINUE FOR THE
    NEXT DAY BEFORE WEAKENING.
    A LARGE AREA OF NE MODERATE TRADEWINDS ARE OCCURRING GENERALLY
    BETWEEN 07N AND 20N W OF 120W THAT WILL CONTINUE WITH LITTLE
    CHANGE FOR THE NEXT COUPLE OF DAYS.
    MOST OF OUR AREA OF RESPONSIBILITY IS COVERED BY SEAS OF AT
    LEAST 8 FT WITH THE HIGHEST UP TO 13 FT OCCURRING W OF BAJA AND
    UP TO 14 FT IN MIXED NW SWELL AND NE WIND WAVES IN THE TRADEWIND
    BELT. MODERATE NW SWELL WILL CONTINUE TO IMPACT THE WESTERN
    HALF OF OUR AREA OVER THE NEXT FEW DAYS.
    IN THE UPPER LEVELS...A SHARP ENE-WSW ORIENTED TROUGH STRETCHES
    FROM 30N118W TO 23N140W AND IS ASSOCIATED WITH A STATIONARY
    SURFACE FRONT ALONG OUR NORTHERN BOUNDARY NEAR 130W. FARTHER
    SOUTH...AN UPPER HIGH IS CENTERED NEAR 09N104W. A MODERATE
    UPPER LEVEL JET IS SITUATED A COUPLE HUNDRED NM SOUTH OF THE
    UPPER TROUGH AXIS AND IS ASSOCIATED WITH UPPER LEVEL MOISTURE
    AND SOME HIGH CLOUDINESS BEGIN ADVECTED OVER SOUTHERN BAJA
    CALIFORNIA AND MAINLAND MEXICO.
    ONE CURIOUS NOTE IS THE LACK OF SIGNIFICANT ORGANIZED DEEP
    CONVECTION ANYWHERE IN OUR AREA OF RESPONSIBILITY. EVEN THE
    ITCZ IS SUPPRESSED SUCH THAT NO DEEP CONVECTION BEYOND
    SMALL...TRANSIENT THUNDERSTORMS ARE TO BE SEEN TODAY. THIS IS
    NOT...HOWEVER...COMPLETELY ATYPICAL OF SPRING CONDITIONS.
    FOR ADDITIONAL INFORMATION PLEASE VISIT
    HTTP://WWW.HURRICANES.GOV/MARINE


    forecast by LANDSEA

    Updated on: Sat, 13 Mar 2010 21:45:12 GMT
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  • Outlook
    Updated on: Sat, 13 Mar 2010 21:45:12 GMT
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  • Atlantic

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


    Updated on: Sat, 13 Mar 2010 21:45:12 GMT
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  • Pacific

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


    Updated on: Sat, 13 Mar 2010 21:45:12 GMT
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  • Buoy Map
  • Central Florida
    buoy

    Cape Canaveral (41009)

    28.51°, -80.17°
    Air temperature:  69°
    Water temperature:  68°
    Pressure:  1005.1 (-1.2) in.
    Wind speed:  W at 0.00 kts.
    Wind gust:  07 kts.
    Wave height:  1.1 m.
    Wave period:  4 s.
    buoy

    Cedar Key (CDRF1)

    29.14°, -83.03°
    Air temperature:  62°
    Water temperature:  no report
    Pressure:  1006.3 (-1.4) in.
    Wind speed:  SW at 18 kts.
    Wind gust:  24 kts.
    Wave height:  no report
    buoy

    Atlantic (41010)

    28.91°, -78.47°
    Air temperature:  69°
    Water temperature:  75°
    Pressure:  1004.2 (-0.7) in.
    Wind speed:  W at 0.00 kts.
    Wind gust:  07 kts.
    Wave height:  1.9 m.
    Wave period:  7 s.
    Sat, 13 Mar 2010 21:45:04 GMT

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