000 AXPZ20 KNHC 051457 TWDEP TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 1605 UTC FRI JUN 05 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... HURRICANE BLANCA CENTERED NEAR 15.1N 106.9W AT 05/1500 UTC OR ABOUT 278 NM SSW OF MANZANILLO MEXICO AND 500 NM SSE OF CABO SAN LUCAS MEXICO MOVING NW AT 9 KT. ESTIMATED MINIMUM CENTRAL PRESSURE IS 972 MB. MAXIMUM SUSTAINED WIND SPEED IS 85 KT WITH GUSTS TO 105 KT. SEE LATEST NHC FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS MIATCMEP2/WTPZ22. NUMEROUS MODERATE AND SCATTERED STRONG CONVECTION IS WITHIN 150 NM IN THE SE SEMICIRCLE. SCATTERED MODERATE CONVECTION IS ELSEWHERE WITHIN 210 NM IN THE W SEMICIRCLE. SCATTERED MODERATE AND ISOLATED STRONG CONVECTION IS WITHIN 120 NM SE OF A LINE FROM 11N103W TO 07N110W. ON THIS TRACK BLANCA WILL APPROACH THE SOUTHERN BAJA CALIFORNIA PENINSULA ON SUN. SWELLS GENERATED BY BLANCA ARE AFFECTING THE SW COAST OF MEXICO AND WILL REACH THE PACIFIC COAST OF THE BAJA CALIFORNIA PENINSULA AND THE SOUTHERN GULF OF CALIFORNIA LATER TODAY. THESE SWELLS ARE LIKELY TO CAUSE LIFE- THREATENING SURF AND RIP CURRENT CONDITIONS. ...TROPICAL WAVES/LOWS... A TROPICAL WAVE EXTENDS FROM 12N96W TO 05N94W MOVING W AT AROUND 5-10 KT DURING THE PAST 24 HOURS. SCATTERED MODERATE AND ISOLATED STRONG CONVECTION IS FROM 05N TO 16N BETWEEN 92W AND 96W...INCLUDING OVER THE GULF OF TEHUANTEPEC. THE SLOW MOVEMENT IS DUE TO LITTLE STEERING IN THE VICINITY WITH A CLOSE PROXIMITY TO HURRICANE BLANCA. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... THE MONSOON TROUGH EXTENDS FROM 13N124W TO 08N133W. THE ITCZ EXTENDS FROM 08N133W TO 05N140W. SCATTERED MODERATE CONVECTION IS WITHIN 120 NM N OF THE AXIS BETWEEN 133W AND 129W. SCATTERED MODERATE AND ISOLATED STRONG CONVECTION IS N OF 01N E OF 82W...INCLUDING OVER THE GULF OF PANAMA UNDER AN AREA OF UPPER LEVEL DIFFLUENCE WHICH ALSO MAY BE ASSOCIATED WITH THE REMNANTS OF A TROPICAL WAVE. SCATTERED MODERATE AND ISOLATED STRONG CONVECTION IS N OF 10N E OF 90W...INCLUDING OVER THE GULF OF PAPAGAYO UNDER AN AREA OF UPPER LEVEL DIFFLUENCE. ...DISCUSSION... HIGH PRES AT 1027 MB IS LOCATED N OF THE DISCUSSION AREA NEAR 38N138W WITH A RIDGE AXIS EXTENDING TO THE SE THROUGH 32N130W TO 24N113W. THE REMNANT 1007 MB LOW OF ANDRES IS LOCATED NEAR 20N128W AND IS DRIFTING TO THE E. FRESH TO STRONG WINDS ARE OCCURRING WITHIN 240 NM IN THE NW SEMICIRCLE OF THE LOW BETWEEN THE NW SIDE OF THE LOW AND THE RIDGING LOCATED TO THE NW. COMBINED SEAS ARE STILL 8 TO 12 FT...HOWEVER AS THE LOW GRADUALLY SPINS DOWN THE ASSOCIATED WINDS AND SEAS WILL DIMINISH AND SUBSIDE THROUGH 48 HOURS. THE COMBINATION OF THE RIDGING AND LOW PRES TROUGHING OVER INTERIOR CALIFORNIA IS RESULTING IN A TIGHT PRES GRADIENT OFFSHORE OF CALIFORNIA WHERE A GALE WARNING IS IN EFFECT. THESE WINDS N OF THE AREA ARE SENDING FRESHLY GENERATED NORTHERLY SWELL INTO THE FAR N CENTRAL WATERS N OF 29N BETWEEN 124W AND 129W. THESE SEAS WILL LINGER N OF 29N WHILE SHIFTING WESTWARD SLIGHTLY THROUGH 48 HOURS. CROSS EQUATORIAL SWELL OF 8 FT OR GREATER IS MIXING WITH SWELLS FROM ANDRES AND BLANCA ACROSS THE S CENTRAL AND SE WATERS. THESE COMBINED AND CONFUSED SEAS WILL SPREAD TO THE NE REACHING 10N BY 48 HOURS ACROSS THE EASTERN WATERS. $$ LEWITSKY