561  
AXPZ20 KNHC 052203  
TWDEP  
 
TROPICAL WEATHER DISCUSSION...CORRECTED  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
2205 UTC TUE AUG 5 2025  
 
CORRECTED TO ADD GALE WARNING FOR INVEST EP91 IN SPECIAL FEATURES  
 
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  
2100 UTC.  
   
..SPECIAL FEATURES
 
 
TROPICAL STORM HENRIETTE IS CENTERED NEAR 17.0N 125.6W AT  
05/2100 UTC, MOVING WEST-NORTHWEST AT 14 KT. ESTIMATED MINIMUM  
CENTRAL PRESSURE IS 1003 MB. MAXIMUM SUSTAINED WIND SPEED IS 45  
KT WITH GUSTS TO 55 KT. PEAK SEAS ARE CURRENTLY AROUND 6.0  
METERS, OR 19 FT. NUMEROUS MODERATE ISOLATED STRONG CONVECTION  
IS NOTED PRIMARILY IN THE NW SEMICIRCLE WITHIN 150 NM OF THE  
CENTER. HENRIETTE IS MOVING TOWARD THE WEST-NORTHWEST AND THIS  
GENERAL MOTION IS EXPECTED TO CONTINUE DURING THE NEXT FEW DAYS.  
SOME SLIGHT WEAKENING IS EXPECTED LATER THIS WEEK. 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 HENRIETTE NHC FORECAST/ADVISORY AND PUBLIC  
ADVISORY AT WWW.HURRICANES.GOV FOR MORE DETAILS.  
 
GALE WARNING SOUTH OF SOUTHERN MEXICO (INVEST EP91): SHOWERS AND  
THUNDERSTORMS ASSOCIATED WITH AN AREA OF LOW PRESSURE LOCATED A  
COUPLE HUNDRED NAUTICAL MILES OFFSHORE OF THE COAST OF CENTRAL  
AMERICA NEAR 09.5N91.5W AT 1010 MB HAVE BECOME A LITTLE BETTER  
ORGANIZED. WIDELY SCATTERED MODERATE ISOLATED STRONG CONVECTION IS  
NOTED FROM 06N TO 16N BETWEEN 88W AND 99.5W. CURRENT ASSOCIATED  
WINDS ARE 20 TO 25 KT WITH SEAS TO 7 FT AND BUILDING. ENVIRONMENTAL  
CONDITIONS ARE CONDUCIVE FOR DEVELOPMENT OF THIS SYSTEM, AND A  
TROPICAL DEPRESSION IS LIKELY TO FORM DURING THE NEXT COUPLE OF DAYS  
WHILE IT MOVES WEST-NORTHWESTWARD AROUND 15 KT. THERE IS A HIGH  
CHANCE OF TROPICAL CYCLONE FORMATION WITHIN THE NEXT 48 HOURS. A  
GALE WARNING HAS BEEN ISSUED BEGINNING AT 48 HOURS. PLEASE REFER TO  
THE LATEST TROPICAL WEATHER OUTLOOK ISSUED BY THE NATIONAL HURRICANE  
CENTER AT WEBSITE - HTTPS://WWW.NHC.NOAA.GOV/TEXT/MIATWOEP.SHTML FOR  
MORE DETAILS.  
   
..TROPICAL WAVES
 
 
THE AXIS OF A TROPICAL WAVE IS NEAR 93.5W NORTH OF 08N TO MEXICO  
NEARING THE GULF OF TEHUANTEPEC, MOVING WESTWARD AROUND 20 KT.  
NEARBY CONVECTION IS DESCRIBED WITH THE NEARBY LOW PRESSURE AREA,  
INVEST EP91, ABOVE.  
 
A TROPICAL WAVE AXIS IS NEAR 109.5W, FROM 05N TO 16N WELL  
OFFSHORE THE COAST OF SW MEXICO, MOVING SLOWLY WEST AT AROUND 5  
KT. NEARBY CONVECTION IS DESCRIBED IN THE ITCZ/MONSOON TROUGH  
SECTION BELOW.  
   
..INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
 
 
THE MONSOON TROUGH EXTENDS FROM NORTH OF PANAMA IN THE SW  
CARIBBEAN SEA TO ALONG THE BORDER OF COSTA RICA AND PANAMA TO  
09N90W TO 13.5N120W, THEN RESUMES SW OF HENRIETTE NEAR 14N128W TO  
BEYOND 12N140W. SCATTERED MODERATE CONVECTION IS NOTED FROM 06N  
TO 11N BETWEEN 107.5W AND 116W, AND FROM 16N TO 20.5N BETWEEN  
104W AND 109W.  
   
..OFFSHORE WATERS WITHIN 250 NM OF MEXICO
 
 
PLEASE READ THE SPECIAL FEATURES SECTION ABOVE FOR DETAILS ON LOW  
PRESSURE, INVEST EP91, OFFSHORE CENTRAL AMERICA NEAR  
09.5N91.5W WITH A HIGH CHANCE OF TROPICAL CYCLONE FORMATION.  
 
MODERATE TO LOCALLY FRESH GAP WINDS ARE FUNNELING THROUGH THE  
GULF OF TEHUANTEPEC. GENTLE TO MODERATE WINDS PREVAIL ELSEWHERE  
OVER THE OPEN WATERS OFF MEXICO. SEAS ARE IN THE 5-7 FT RANGE  
OFF BAJA CALIFORNIA NORTE. ELSEWHERE OVER THE OPEN WATERS OFF  
MEXICO, SEAS ARE IN THE 4-6 FT RANGE. IN THE GULF OF CALIFORNIA,  
GENTLE TO MODERATE WINDS AND SEAS OF 1-3 FT PREVAIL. ACTIVE  
CONVECTION AS DESCRIBED ABOVE IS OFFSHORE SOUTHERN MEXICO NEAR  
THE GULF OF TEHUANTEPEC AS WELL AS NEAR AND OFFSHORE SW MEXICO  
WITH LOCALLY HIGHER WINDS AND SEAS POSSIBLE.  
 
FOR THE FORECAST, OTHER THAN THE AREA OF LOW PRESSURE, INVEST  
EP91, WITH A HIGH CHANCE OF TROPICAL CYCLONE FORMATION, MAINLY  
GENTLE TO MODERATE NW WINDS WILL PREVAIL ACROSS THE OFFSHORE  
WATERS OF BAJA CALIFORNIA THROUGH EARLY FRI, LOCALLY FRESH NEAR  
PUNTA EUGENIA WED NIGHT. IN THE GULF OF CALIFORNIA, GENTLE TO  
MODERATE SE WINDS WILL CONTINUE, INCREASING TO FRESH TO LOCALLY  
STRONG THU NIGHT INTO EARLY SAT. WINDS WILL BE MODERATE OR WEAKER  
ELSEWHERE. FRESH NORTHERLY SWELL MAY BUILD SEAS TO AROUND 8 FT  
OFFSHORE BAJA CALIFORNIA NORTE THU NIGHT THROUGH FRI.  
 
...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,  
AND WITHIN 750 NM OF ECUADOR...  
 
PLEASE READ THE SPECIAL FEATURES SECTION ABOVE FOR DETAILS ON LOW  
PRESSURE, INVEST EP91, OFFSHORE CENTRAL AMERICA NEAR  
09.5N91.5W WITH A HIGH CHANCE OF TROPICAL CYCLONE FORMATION.  
 
WINDS ARE MODERATE OR WEAKER ACROSS THE REMAINDER OF THE OFFSHORE  
WATERS ZONES. SEAS ACROSS THE REGION ARE GENERALLY IN THE 4-6 FT  
RANGE.  
 
FOR THE FORECAST, OTHER THAN THE AREA OF LOW PRESSURE, INVEST  
EP91, WITH A HIGH CHANCE OF TROPICAL CYCLONE FORMATION, FRESH TO  
STRONG NE WINDS WILL PULSE IN THE GULF OF PAPAGAYO WED NIGHT  
THROUGH EARLY FRI. WINDS WILL BE MAINLY GENTLE TO MODERATE  
ACROSS THE REMAINDER OF THE WATERS THROUGH THE UPCOMING WEEKEND,  
EXCEPT A BRIEF SURGE OF MODERATE TO FRESH N WINDS IN THE GULF OF  
PANAMA THU NIGHT. A NEW SET OF S TO SW SWELL WILL PROPAGATE INTO  
THE WATERS WED AND WED NIGHT, GRADUALLY AND SLIGHTLY BUILDING  
SEAS WHICH WILL LINGER INTO THE WEEKEND.  
   
..REMAINDER OF THE AREA
 
 
PLEASE SEE THE SPECIAL FEATURES SECTION ABOVE FOR INFORMATION ON  
TROPICAL STORM HENRIETTE, AND ON LOW PRESSURE, INVEST EP91,  
OFFSHORE CENTRAL AMERICA NEAR 09.5N91.5W WITH A HIGH CHANCE OF  
TROPICAL CYCLONE FORMATION.  
 
A RIDGE EXTENDS ACROSS THE WATERS N OF 20N, ANCHORED BY A 1026  
MB HIGH CENTERED NW OF THE WATERS NEAR 34N142W. THE PRESSURE  
GRADIENT BETWEEN THIS AREA OF HIGH PRESSURE AND TROPICAL STORM  
HENRIETTE IS SUPPORTING MODERATE TO FRESH NE TO E WINDS FROM 15N  
TO 28N AND WEST OF 122W. MAINLY GENTLE TO MODERATE WINDS ARE  
FOUND ELSEWHERE. OUTSIDE OF TROPICAL STORM HENRIETTE, SEAS ARE IN  
THE 5-8 FT RANGE IN MIXED S TO SW AND NE TO E SWELLS.  
 
FOR THE FORECAST, OTHER THAN THE AREA OF LOW PRESSURE, INVEST  
EP91, WITH A HIGH CHANCE OF TROPICAL CYCLONE FORMATION, HENRIETTE  
WILL MOVE TO 17.4N 127.7W WED MORNING, 17.9N 130.4W WED  
AFTERNOON, 18.4N 133.3W THU MORNING, 18.8N 136.3W THU AFTERNOON,  
19.4N 139.4W FRI MORNING, AND THEN WEST OF THE AREA INTO THE  
CENTRAL PACIFIC BASIN NEAR 20.1N 142.2W BY FRI AFTERNOON.  
HENRIETTE WILL CHANGE LITTLE IN INTENSITY AS IT MOVES WELL INTO  
THE CENTRAL PACIFIC NEARING 22.3N 147.4W SAT AFTERNOON. WINDS  
MAY FRESHEN SOUTH OF THE MONSOON TROUGH IN THE CENTRAL WATERS  
BY WED NIGHT, GRADUALLY SHIFTING WESTWARD THROUGH THE UPCOMING  
WEEKEND. THESE WINDS COMBINED WITH A SET OF INCOMING S TO SW  
SWELLS WILL HELP TO BUILD SEAS TO AROUND 8 FT. OTHERWISE, LITTLE  
CHANGE IN WINDS AND SEAS IS EXPECTED DURING THE NEXT SEVERAL  
DAYS.  
 

 
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