721  
AXPZ20 KNHC 022127  
TWDEP  
 
TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
2205 UTC WED JUL 2 2025  
 
TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM  
03.4S TO 30N, EAST OF 120W INCLUDING THE GULF OF CALIFORNIA, AND  
FROM THE EQUATOR TO 30N, BETWEEN 120W AND 140W. THE FOLLOWING  
INFORMATION IS BASED ON SATELLITE IMAGERY, WEATHER OBSERVATIONS,  
RADAR, AND METEOROLOGICAL ANALYSIS.  
 
BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH  
2030 UTC.  
   
..SPECIAL FEATURES
 
 
HURRICANE FLOSSIE IS CENTERED NEAR 19.5N 109.8W AT 2100 UTC, AND  
IS MOVING NORTHWEST AT 8 KT. MAXIMUM SUSTAINED WINDS ARE 85 KT  
WITH GUSTS TO 105 KT, AND THE MINIMUM CENTRAL PRESSURE IS 974  
MB. SEAS IN EXCESS OF 12 FT REACH AS FAR AS 150 NM IN THE  
NORTHERN SEMICIRCLE AND 90 NM SOUTHERN SEMICIRCLE FROM THE  
CENTER OF FLOSSIE, WITH MAXIMUM WAVE HEIGHTS TO 30 FT. NUMEROUS  
MODERATE TO STRONG CONVECTION IS WITHIN 60 NM NE AND 150 NM  
SW OF THE CENTER OF FLOSSIE. SCATTERED MODERATE CONVECTION IS  
ELSEWHERE FROM 21N TO 23N BETWEEN LAS TRES MARIAS AND 110W.  
FLOSSIE HAS BEGUN TO WEAKEN TODAY IS NOW A CATEGORY 2 HURRICANE  
ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. FLOSSIE IS EXPECTED  
TO MOVE NW AND GRADUALLY WEAKEN THROUGH TONIGHT, THEN WEAKEN  
QUICKLY AND LOSE ITS TROPICAL CHARACTERISTICS THU THROUGH FRI.  
LARGE SWELL GENERATED BY FLOSSIE WILL AFFECT PORTIONS OF THE  
COAST OF SOUTHWESTERN MEXICO AND THE BAJA CALIFORNIA PENINSULA  
THROUGH THU, AND SPREAD INSIDE THE GULF OF CALIFORNIA THROUGH  
MIDDAY THU. THESE SWELLS ARE LIKELY TO CAUSE LARGE AND DANGEROUS  
SURF AND LIFE-THREATENING RIP CURRENT CONDITIONS. PLEASE CONSULT  
PRODUCTS FROM YOUR LOCAL WEATHER OFFICE.  
 
PLEASE READ THE LATEST HIGH SEAS FORECAST ISSUED BY THE  
NATIONAL HURRICANE CENTER AT WEBSITE -  
HTTPS://WWW.NHC.NOAA.GOV/TEXT/MIAHSFEP2.SHTML AND THE LATEST  
FLOSSIE NHC FORECAST/ADVISORY AND PUBLIC ADVISORY AT  
WWW.HURRICANES.GOV FOR MORE DETAILS.  
   
..TROPICAL WAVES
 
 
A WESTERN CARIBBEAN TROPICAL WAVE HAS MOVED ACROSS CENTRAL  
AMERICA AND IS NOW ENTERING SOUTHEASTERN MEXICO ALONG 92W  
EXTENDING SOUTHWARD INTO THE EASTERN TROPICAL PACIFIC TO 03N, AND  
IS MOVING WESTWARD NEAR 15 KT. SCATTERED TO LOCALLY NUMEROUS  
MODERATE TO STRONG CONVECTION IS ABOUT THE WAVE FROM 06N TO 12.5N  
BETWEEN 87W AND 97W. RECENT SATELLITE SCATTEROMETER WIND DATA  
SHOWED STRONG WINDS TO GALE-FORCE ASSOCIATED WITH THUNDERSTORMS  
OCCURRING FROM 08N TO 11N BETWEEN 91W AND 93.5W.  
   
..INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
 
 
THE MONSOON TROUGH EXTENDS FROM 11N73.5W TO 10N86W TO 07N98W TO  
13N105W, THEN CONTINUES SOUTH OF HURRICANE FLOSSIE FROM 14N109W  
TO 08N128W. THE ITCZ BEGINS NEAR 08N128W AND CONTINUES BEYOND  
07.5N140W. ASIDE FROM THE CONVECTION RELATED TO HURRICANE  
FLOSSIE, SCATTERED TO LOCALLY NUMEROUS MODERATE TO STRONG  
CONVECTION IS OBSERVED FROM 06N TO 11.5N EAST OF 91W, FROM 03.5N  
TO 12.5N BETWEEN 91W AND 104W, AND FROM 04N TO 16.5N BETWEEN 104W  
AND 110W.  
   
..OFFSHORE WATERS WITHIN 250 NM OF MEXICO
 
 
PLEASE REFER TO THE SPECIAL FEATURES SECTION ABOVE FOR DETAILS  
ON HURRICANE FLOSSIE.  
 
ELSEWHERE, A WEAK RIDGE EXTENDS ACROSS THE AREA WATERS NORTH OF  
15N AND WEST OF 113W, CENTERED ON 1026 MB HIGH PRESSURE NEAR  
36N135W. THIS PATTERN IS MAINTAINING MODERATE NW WINDS OFF BAJA  
CALIFORNIA, WHERE COMBINED SEAS ARE 4 TO 5 FT NORTH OF PUNTA  
EUGENIA, AND 6 TO 9 FT IN SE SWELL FROM FLOSSIE BETWEEN PUNTA  
EUGENIA AND OFFSHORE OF CABO SAN LUCAS. FRESH TO LOCALLY STRONG  
SE WINDS AND 4 TO 7 FT SEAS ARE NOTED ACROSS THE GULF OF  
CALIFORNIA, WITH STRONGEST WINDS ACROSS THE NORTHERN GULF. SEAS  
OF 8 TO 12 FT AND MUCH HIGHER ARE FOUND BETWEEN CABO SAN LUCAS,  
LAS TRES MARIAS AND THE REVILLAGIGEDO ISLANDS AS FLOSSIE PASSES  
THROUGH THAT AREA. SEAS WILL BUILD MODESTLY ACROSS THE ENTRANCE  
AND SOUTHERN PORTIONS OF THE GULF OVERNIGHT. FARTHER SOUTH,  
WINDS HAVE BEGUN TO DIMINISH ACROSS THE WATERS WITHIN 75 NM OF  
THE COASTS BETWEEN JALISCO AND MICHOACAN, WHERE RECENT SATELLITE  
SCATTEROMETER WINDS SHOWED PEAK WINDS NEAR 25 KT OR LESS ACROSS  
THESE NEAR SHORE WATERS. ELSEWHERE TO THE EAST, CONDITIONS  
CONTINUE TO IMPROVE, WITH MAINLY LIGHT TO GENTLE BREEZES FROM  
OAXACA TO TEHUANTEPEC, EXCEPT FOR STRONG GUSTY WINDS NEAR  
THUNDERSTORMS. COMBINED SEAS ARE 6 TO 7 FT PRIMARILY IN MIXED S  
AND W SWELL.  
 
FOR THE FORECAST, FLOSSIE IS EXPECTED TO CONTINUE MOVING NW AND  
GRADUALLY WEAKEN THROUGH TONIGHT, REACHING NEAR 20.1N 110.8W  
AROUND MIDNIGHT, NEAR 21.1N 112.3W MIDDAY THU AS A TROPICAL  
STORM, THEN BECOME A 40 KT POST-TROPICAL LOW NEAR 22.1N 113.8W  
AROUND MIDNIGHT THU, THEN REACH NEAR 23.1N 115.4W FRI AFTERNOON  
AS A REMNANT LOW. ELSEWHERE, LARGE SWELL GENERATED FROM FLOSSIE  
WILL IMPACT THE WATERS AND COASTS FROM COLIMA AND JALISCO TO THE  
CENTRAL GULF OF CALIFORNIA AND BAJA SUR TO PUNTA EUGENIA THROUGH  
LATE THU. EXPECT FRESH TO STRONG SE WINDS THROUGH THE GULF OF  
CALIFORNIA THROUGH THU MORNING. LOOKING AHEAD, FRESH TO STRONG E  
TO SE WINDS AND ROUGH SEAS ARE POSSIBLE OFF OAXACA AND GUERRERO  
THU NIGHT THROUGH SAT AS AN AREA OF LOW PRESSURE MOVES TO THE  
W-NW AND OFFSHORE OF THE COAST OF SOUTHERN MEXICO. THIS AREA OF  
LOW PRESSURE IS FORECAST TO DEVELOP SEVERAL HUNDRED MILES  
OFFSHORE OF SOUTHWESTERN MEXICO IN A FEW DAYS. ENVIRONMENTAL  
CONDITIONS APPEAR CONDUCIVE FOR SOME GRADUAL DEVELOPMENT OF THIS  
SYSTEM THEREAFTER, AND A TROPICAL DEPRESSION COULD FORM OVER THE  
WEEKEND OR EARLY NEXT WEEK WHILE IT MOVES GENERALLY WEST-  
NORTHWESTWARD. THE LATEST TROPICAL WEATHER OUTLOOK GIVES THIS  
SYSTEM A LOW CHANCE OF TROPICAL CYCLONE FORMATION OVER THE NEXT  
48 HOURS, BUT A MEDIUM CHANCE THROUGH 7 DAYS.  
 
...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,  
AND WITHIN 750 NM OF ECUADOR...  
 
A STRONG TROPICAL WAVE MOVING ACROSS CENTRAL AMERICA AND INTO FAR  
SOUTHEASTERN MEXICO, AND A TIGHT PRESSURE GRADIENT OVER THE SW  
CARIBBEAN, SUPPORT FRESH TO STRONG NE WINDS ACROSS THE PAPAGAYO  
REGION AND DOWNWIND TO 93W, WITH ASSOCIATED SEAS 6 TO 9 FT.  
CLUSTERS OF STRONG THUNDERSTORMS ARE EXITING THIS AREA TO THE  
WEST THIS AFTERNOON. MODERATE TO LOCALLY FRESH S TO SW WINDS ARE  
ELSEWHERE IN THE CENTRAL AMERICA OFFSHORE WATERS FROM COSTA RICA  
TO COLOMBIA, WITH MODERATE SEAS 5 TO 7 FT IN S SWELL. BETWEEN  
ECUADOR AND THE GALAPAGOS ISLANDS, WINDS ARE GENTLE TO MODERATE  
FROM THE S WITH 6 TO 8 FT SEAS IN S SWELL.  
 
FOR THE FORECAST, FRESH TO LOCALLY STRONG NE TO E WINDS WILL  
PULSE ACROSS THE PAPAGAYO REGION THROUGH THU. LOW PRESSURE IS  
EXPECTED TO DEVELOP DOWNWIND OF PAPAGAYO AND SOUTH OF TEHUANTEPEC  
BY THU NIGHT, PRODUCING FRESH TO LOCALLY STRONG WINDS OFFSHORE  
OF EL SALVADOR AND GUATEMALA THROUGH FRI MORNING. ELSEWHERE,  
GENTLE TO MODERATE WINDS AND MODERATE SEAS IN SOUTHERLY SWELL ARE  
EXPECTED. MODERATE TO LARGE CROSS EQUATORIAL S TO SW SWELL WILL  
AFFECT THE WATERS NEAR THE GALAPAGOS ISLANDS INTO THU. MODERATE  
OR WEAKER WINDS ARE FORECAST ACROSS THE ENTIRE REGION OVER THE  
WEEKEND.  
   
..REMAINDER OF THE AREA
 
 
THE REMAINDER OF THE EASTERN PACIFIC REGION IS UNDER THE INFLUENCE  
OF A 1026 MB HIGH PRESSURE SYSTEM CENTERED NEAR 36N135W. THE  
ASSOCIATED RIDGE DOMINATES THE WATERS NORTH OF 15N AND WEST OF  
113W, PRODUCING GENTLE TO MODERATE N TO NE WINDS WITH SEAS IN  
THE 5 TO 7 FT RANGE IN MIXED SWELL WEST OF 120W. SOUTH OF THE  
MONSOON TROUGH TO 05N AND BETWEEN 105W AND 120W, FRESH TO STRONG  
SW TO W WINDS AND SEAS OF 8 TO 10 FT IN S TO SW SWELL PREVAIL.  
SOUTHERLY SWELL OF 6 TO 8 FT DOMINATES SEAS ELSEWHERE ACROSS THE  
EQUATORIAL ZONE.  
 
FOR THE FORECAST, HIGH PRESSURE WILL PERSIST TO THE NW OF THE  
AREA THROUGH THE REMAINDER OF THE WEEK, WITH LITTLE CHANGE IN  
WIND STRENGTH W OF 120W. THE DOMINANT MARINE FEATURE WILL BE THE  
LARGE SOUTHERLY SWELL CONTINUING SOUTH OF 10N WEST OF 90W  
THROUGH LATE THU, FOLLOWED BY ANOTHER PULSE OF MODERATE SW SWELL  
OVER THE WEEKEND. FRESH TO STRONG SW WINDS WILL REMAIN ACTIVE FOR  
THE NEXT SEVERAL DAYS FROM 10N TO 15N BETWEEN 105W TO 120W,  
GENERATING WAVES THAT WILL MIX WITH THE LONGER PERIOD SW SWELL IN  
THAT AREA.  
 

 
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