186 AXPZ20 KNHC 232114 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Fri May 23 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. ...TROPICAL WAVES... The axis of a tropical wave is analyzed along 115W from 04N to 17N, moving westward around 5-10 kt. Scattered moderate convection is noted from 03N to 14N between 112W and 119W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough enters the eastern Pacific near 08N79W to 13N115W to 10N122W. The ITCZ continues from 10N122W to beyond 07N140W. Scattered moderate to strong convection is noted from 04N to 12N between 90W and 110W, and from 05N to 12N and W of 120W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Surface ridging extends over the Mexico offshore waters, supporting gentle to moderate NW winds over the Baja California waters and light to gentle winds offshore southern Mexico. Locally rough seas prevail over the waters offshore Baja California Norte, otherwise mainly moderate seas prevail. Elsewhere, troughing prevails in the Gulf of California, supporting gentle to moderate winds and slight seas. For the forecast, pulsing fresh NW winds will occur each night near Cabo San Lucas as troughing resides over Baja California Sur. Elsewhere, moderate to fresh NW winds are expected north of Punta Eugenia through Sat, with pulsing winds expected offshore of much of the peninsula into early next week. In the northern Gulf of California, winds will pulse to fresh speeds nightly into the weekend. Rough seas in NW swell will prevail offshore of Baja California Norte into Sat before seas slowly subside into the weekend. In the extended forecast, an area of low pressure is likely to form early next week several hundred miles south of the southern coast of Mexico. Conditions appear favorable for development of this system, and a tropical depression could form around the middle of next week while moving westward to west-northwestward at 10 to 15 kt. There is a medium chance of development within the next 7 days. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh E winds are noted in the Papagayo region as low pressure prevails over northwestern Colombia. Otherwise, mainly light winds are occurring north of the monsoon trough, with gentle to moderate winds occurring to the south. Moderate seas in SW swell are noted offshore of Central America and Colombia, and rough seas are occurring in the vicinity fo the Galapagos Islands. For the forecast, fresh E winds will pulse in the Gulf of Papagayo through the weekend as low pressure prevails over northwestern Colombia. Moderate to fresh winds may extend beyond the Papagayo region, impacting areas well offshore of Guatemala and El Salvador. Elsewhere, a long-period SW swell is slated to move through the South American waters through this weekend, leading to rough seas offshore of Ecuador and Colombia. ...REMAINDER OF THE AREA.... Surface ridging dominates the east Pacific waters. Moderate NE winds and moderate seas prevail north of the monsoon trough and ITCZ. Fresh NE winds occurring around 10N, west of 125W, are generating rough seas. Rough seas in NW swell are occurring well offshore of Baja California, mainly N of 29N between 120W and 124W. Farther south, a long-period SW swell is producing rough seas over the equatorial waters, with the highest seas noted south of the equator. Otherwise, moderate or weaker winds and moderate seas prevail elsewhere. For the forecast, moderate to fresh N to NE winds will prevail north of the monsoon trough and ITCZ through today as high pressure prevails to the north. Rough seas generated by trade winds surrounding 10N will continue through today before subsiding this weekend. Elsewhere, rough seas occurring well offshore of Baja California, will prevail through tonight. The high pressure to the north is slated to weaken this weekend, supporting mainly moderate winds north of the monsoon trough/ITCZ. Farther south, rough seas generated by a long-period SW swell will occur south of 05N into early next week. $$ ERA
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