000
AXPZ20 KNHC 271536
TWDEP 

TROPICAL WEATHER DISCUSSION                                   
NWS NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC FRI MAR 27 2015

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND
METEOROLOGICAL ANALYSIS.

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
1500 UTC. 

...SPECIAL FEATURES...                                         
A STRONG AREA OF LOW PRESSURE IS FORECAST TO DEVELOP ACROSS THE
DESERT SOUTHWEST OF THE U.S. MONDAY STRENGTHENING THE PRESSURE
GRADIENT BETWEEN THE LOWER PRESSURE AND A RIDGE AXIS EXTENDING
ACROSS THE NORTH-CENTRAL AND NE PACIFIC WATERS OFF THE COAST OF
CALIFORNIA AND BAJA CALIFORNIA. A BRIEF PERIOD OF NEAR GALE TO
GALE FORCE WINDS ARE EXPECTED ACROSS NORTHERN PORTIONS OF THE
GULF OF CALIFORNIA MONDAY NIGHT LATE INTO EARLY TUESDAY. GIVEN
THE LIMITED FETCH OPPORTUNITY...SEAS ARE ANTICIPATED TO REACH 8
FT ACROSS A SMALL AREA FROM 30N TO 30.5N. THE WINDS WILL
DIMINISH TO 20-25 KT BY LATE TUE MORNING AS THE LOW PRESSURE
AREA MOVES EASTWARD. SEE LATEST NWS HIGH SEAS FORECAST UNDER
AWIPS/WMO HEADERS MIAHSFEP2/FZPN03 KNHC FOR MORE DETAILS.
  
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...            
THE NORTHERN ITCZ AXIS EXTENDS FROM 03N102W TO 06N114W TO
03N125W TO 02N140W. THE SOUTHERN ITCZ AXIS EXTENDS FROM 03.4S98W
TO 00S109W TO 01S119W. NUMEROUS MODERATE AND ISOLATED STRONG
CONVECTION IS FROM 02N TO 08N BETWEEN 116W AND 122W. SCATTERED
MODERATE CONVECTION IS FROM 06N TO 08N BETWEEN 112W AND 116W...
FROM 01N TO 05N BETWEEN 122W AND 129W...AND FROM 02N TO 07N W OF
131W. ISOLATED MODERATE CONVECTION IS S OF 00S BETWEEN 88W AND
92W...AND BETWEEN 98W AND 102W.

...DISCUSSION...                                               
A 1028 MB HIGH IS LOCATED N OF THE DISCUSSION AREA 34N139W AND
EXTENDS A RIDGE AXIS SE TO NEAR 15N108W. THE PRESSURE GRADIENT
BETWEEN THE HIGH AND LOWER PRESSURE IN THE VICINITY OF THE ITCZ
IS MAINTAINING MODERATE TO FRESH TRADES ACROSS0 THE WESTERN
WATERS PRIMARILY FROM 06N-22N W OF 125W. SEAS OF 6 TO 8 FT ARE
NOTED PER ALTIMETER DATA WITHIN THE AREA OF TRADES. WITHIN 12 TO
24 HOURS...THE HIGH WILL BE REINFORCED BY STRONGER HIGH PRESSURE
CURRENTLY ANALYZED NORTH OF A DISSIPATING STATIONARY FRONT ALONG
36N/37N. LITTLE CHANGE IS EXPECTED IN THE TRADE WIND FLOW
THROUGH TUESDAY.

THE PRESSURE GRADIENT BETWEEN THE SUBTROPICAL HIGH AND A SURFACE
TROUGH ALONG THE BAJA CALIFORNIA PENINSULA IS PRODUCING AN AREA
OF MODERATE TO FRESH N-NW WINDS ACROSS THE WATERS N OF 24N
BETWEEN 116W AND 126W. SEAS ACROSS THIS REGION RANGE 8 TO 10 FT
IN NW SWELL WHICH ARE EXPECTED TO SLOWLY SUBSIDE THROUGH
TONIGHT. SEAS WILL BRIEFLY BE LESS THAN 8 FT EARLY MON MORNING
BEFORE ONCE AGAIN BUILDING TO 9 FT IN NW SWELL TUESDAY.
 
A LINGERING AREA OF LONG PERIOD SW SWELL WITH COMBINED SEAS 8 FT
OR GREATER GENERALLY COVERS THE WATERS S OF 02S BETWEEN 98W AND
115W. SEAS ASSOCIATED WITH THIS SWELL EVENT ARE EXPECTED TO
GRADUALLY SUBSIDE TO 8 FT OR LESS LATER TODAY. HOWEVER...A NEW
PULSE OF SOUTHERN HEMISPHERIC SW SWELL WILL CROSS THE EQUATOR
MONDAY AND BUILD SEAS INTO THE 8-9 FT RANGE W OF A LINE FROM
03.4S100W TO 00N108W BY TUESDAY MORNING.
 
GAP WINDS...GULF OF PAPAGAYO...WINDS WILL CONTINUE TO PULSE
ACROSS THE GULF OF PAPAGAYO DURING THE NEXT COUPLE OF DAYS.
WINDS WILL PEAK NEAR 25 KT DURING THE LATE NIGHT AND EARLY
MORNING HOURS WITH THE ASSISTANCE OF NOCTURNAL DRAINAGE FLOW AND
DIMINISH TO 20 KT OR LESS DURING THE AFTERNOON AND EARLY EVENING
HOURS. EXPECT SEAS TO BUILD TO 6 TO 8 FT WITH THESE WINDS.
   
$$
HUFFMAN