Tropical Weather Discussion
Issued by NWS
Issued by NWS
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165 AXPZ20 KNHC 072037 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Fri Nov 7 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... NW Significant Swell Event: The large NW swell has subsided enough where seas have fallen below 12 ft. Another set of large NW swell will propagate into the NW waters this weekend, with seas greater than 12 ft entering the NW waters late Sat into early Sun. Please read the latest HIGH SEAS FORECAST issued by the National Hurricane Center at website - https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 10N86W to 10N90W to 08N106W. The ITCZ continues from 08N106W to 08N140W. Scattered moderate and isolated strong convection is noted from 06N to 12N between 87W and 105W, and from 07N to 10N between 105W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Gentle winds are over and downstream the Gulf of Tehuantepec. Gentle to moderate winds are found W of the Baja California peninsula extending southward to near the Revillagigedo Islands. Light to gentle winds are elsewhere over the open waters off Mexico. Gentle winds prevail over the Gulf of California. Seas are in the 8-11 ft range in NW swell off the Baja California peninsula. Elsewhere over the open waters off Mexico, seas of 4-6 ft prevail. Over the Gulf of California, seas are 3 ft or less. For the forecast, large NW swell propagating over the waters west of the Baja California peninsula will propagate across the remainder of the Mexican offshore waters through Sun. Seas will begin to subside from N to S starting tonight. The next gale force gap wind event in the Gulf of Tehuantepec region is expected to begin Sun night. Winds will likely reaching gale- force by early Mon morning and continue through Tue night before diminishing below gale-force Wed. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gentle to locally moderate northeast to east gap winds prevail across and downstream of the Gulf of Papagayo region. Light to gentle winds prevail elsewhere N of the monsoon trough. Gentle to moderate winds are S of the monsoon trough, and are strongest east through north of the Galapagos Islands. Seas are in the 4 to 6 ft range in SW swell over the discussion waters. For the forecast, winds in the Gulf of Papagayo region will pulse to moderate speeds at night through the weekend, then will freshen by early next week as strong high pressure builds north of the region. Otherwise, relatively mild conditions are expected throughout the region through Mon. Seas will be dominated by a mix of moderate SW and NW swell into early next week. The next significant Tehuantepec gap wind event is expected by Mon and will generate large northerly seas moving into the outer waters of Guatemala by Mon night. ...REMAINDER OF THE AREA... Please see SPECIAL FEATURES section above for details on an upcoming set of large NW swell that will move into the NW waters this weekend. High pressure dominates the waters N of 20N, anchored by a 1025 mb high centered near 32N130W. Light to gentle winds are N of 25N and W of 130W. The pressure gradient between the high pressure and lower pressure in the vicinity of the ITCZ is supporting moderate to fresh trade winds from 10N to 23N and west of 120W. The NW swell moving across the regional waters is mixing with NE waves being generated in the trade wind zone from 10N to 18N and west of 120W, where seas are 8 to 12 ft. Moderate winds prevail south of the monsoon trough/ITCZ. N of 20N and W of 120W seas of 8 to 11 ft prevail in NW swell. Seas are in the 6 to 8 ft range elsewhere. For the forecast, the NW swell over the N and W waters will propagate southeastward through Sat night before subsiding. Seas greater than 8 ft will cover much of the waters N of 10N and W of 110W by tonight before starting to slowly subside. Another pulse of NW swell, associated with a frontal system expected to stall across the NW waters, will begin to move into the NW waters Sat and spread southeastward into early next week. $$ AL