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Issued by NWS
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417 AXPZ20 KNHC 162103 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Mon Jun 16 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 2000 UTC. ...SPECIAL FEATURES... The recently upgraded Potential Tropical Cyclone Five-E is centered near 10.6N 91.7W at 16/2100 UTC, moving west-northwest at 7 kt. Estimated minimum central pressure is 1009 mb. Maximum sustained wind speed is 30 kt with gusts to 40 kt. At this time, scattered to numerous moderate to strong convection prevails N of 04N and E of 101W. Rough seas prevail within 30 nm in the northern semicircle of the low. A turn toward the northwest is expected later today or tonight, and this motion is forecast to continue for the next few days. PTC Five-E may produce rainfall totals of 2 to 4 inches, with maximum totals of 6 inches, across coastal sections of El Salvador, Guatemala and the Mexican states of Chiapas, Tabasco and Veracruz. Rainfall totals of 4 to 8 inches, with maximum totals of 12 inches, are possible across the Mexican states of Oaxaca and Guerrero. This rainfall may produce life threatening flooding and mudslides, especially in areas of steep terrain. Swells generated by the system are expected to begin affecting the coast of southern Mexico in a day or so. These swells are likely to cause life- threatening surf and rip current conditions. Please consult products from your local weather office for more details. 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 Five-E NHC Forecast/Advisory and Public Advisory at www.hurricanes.gov for more details. ...TROPICAL WAVES... The southern portion of a tropical wave extends from the Caribbean Sea southward along 82W to across western Panama N of 05N, moving westward around 10 kt. Scattered to numerous moderate to strong convection is N of 03N and E of 82W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from Panama near 10N86W to 09N124W. The ITCZ extends from 09N124W to beyond 09N140W. Aside from the convection related to PTC Five-E, scattered moderate convection is noted within 60 nm of the ITCZ and W of 117W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please read the Special Features section for details on the now upgraded Potential Tropical Cyclone Five-E. Elsewhere, the remnants of Dalila at 1010 mb are analyzed near 18N111W. Some lingering winds of 20 to 25 kt are possible per recent ASCAT scatterometer data, with decaying rough seas. Surface ridging is present west of Baja California with moderate or weaker winds. Fresh to strong SE to S winds are in the Gulf of California N of 29N, and moderate or weaker winds elsewhere including offshore SW and southern Mexico. Moderate seas prevail across the offshore waters away from the remnants of Dalila. In the Gulf of California, moderate seas are in the southern Gulf, and slight seas elsewhere. For the forecast, other than the area of PTC Five-E, the remnants of Dalila will continue to spin down and dissipate over the next couple of days while associated winds and seas diminish. Cross- equatorial southerly swell will continue to impact the waters between Tehuantepec and Baja California Sur through early afternoon. Elsewhere, high pressure well northwest of the area will support pulsing moderate to fresh N-NW winds across the Baja California Norte offshore waters through the week. Rough NW to N swell will build into the Baja waters this evening through the week. Moderate to fresh southerly winds will prevail across the Gulf of California tonight through Tue, with strong speeds in the northern Gulf through this afternoon. Winds will be mainly moderate or weaker elsewhere through the week. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Please read the Special Features section for details on PTC Five-E. Elsewhere, winds are moderate or weaker elsewhere from offshore Colombia northward, with moderate seas. Moderate to fresh southerly winds are offshore Ecuador to the Galapagos Islands, with moderate to rough seas in southerly swell. For the forecast, other than PTC Five-E, which may bring increasing winds and seas as well as heavy rainfall described above, moderate to fresh winds will prevail offshore Ecuador to the Galapagos Islands through the week. Winds will be moderate or weaker offshore Colombia northward, except pulse to moderate to fresh in the Papagayo region starting Thu morning. Meanwhile, rough seas off Ecuador will subside slightly through today then remain moderate through the remainder of the week. Moderate seas will be mainly offshore Colombia northward through mid-week, higher near PTC Five-E, then will subside by the end of the week. ...REMAINDER OF THE AREA... Please read the Special Features section for information on PTC Five-E. Broad and weak ridging extend from a high well NW of the discussion waters to across the open waters north of the monsoon trough and ITCZ and west of the remnants of Dalila centered near 19N110.5W. Winds are mainly moderate or weaker across the open waters, both north and south of the monsoon trough and ITCZ, locally fresh south of the monsoon trough and ITCZ. Seas are mainly moderate across the open waters in mixed southerly and northerly swells. For the forecast, high pressure north of the area will sink slightly southward through the week. A slight increase in winds is expected over the NW waters through the week, while winds weaken to the west and southwest of the approaching remnants of Dalila during the next few days. A slight increase in seas is expected across the northern waters east of 130W tonight through Thu as new N to NE swell moves into the regional waters, spreading west-southwestward to 140W by the end of the week. $$ ERA