--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2025-11-22 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC220833_C_KWBC_20251122083421_29294990-493-TWDEP.txt ****0000004656**** AXPZ20 KNHC 220833 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Sat Nov 22 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 0600 UTC surface analysis and satellite imagery through 0800 UTC. ...SPECIAL FEATURES... Large NW swell over the northern waters: A 1009 mb low pressure is centered near 29N121W. A 1029 mb high pressure is centered near 35N138W. The pressure gradient between these features is supporting near gale force winds W of the low. The low will shift further eastward while weakening slightly. This will loosen the pressure gradient and further diminish winds. This system has ushered in a large set of NW swell. Very rough seas greater than 12 ft are currently N of 26N between 119W and 132W. These rough seas will shift SE across the waters N of 25N and W of 117W today before subsiding below 12 ft tonight. Seas are currently peaking near 17 ft. 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 09N84W to 06N95W to 10N115W. The ITCZ extends from 10N115W to 06N126W to 07N140W. Scattered moderate convection is noted from 04N to 08N between 84W and 90W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see the Special Features section for details on a large NW swell event. An area of low pressure approaching the Baja California Norte waters is preceded by moderate to locally fresh winds. Moderate winds are noted near the Revillagigedo Islands. Fresh to locally strong winds are over the Gulf of Tehuantepec. Light to gentle winds prevail elsewhere. Seas are in the 8-13 ft range W of Baja California Norte. Elsewhere, seas are in the 4-6 ft range over the open waters off Mexico. Over the Gulf of California, seas are 3 ft or less. For the forecast, the area of low pressure will shift across the Baja California Norte waters through tonight, generating fresh to strong NW to W winds with scattered showers and isolated thunderstorms west of Baja California Norte. Large NW swell accompanying this low will spread over the waters west of the Baja California peninsula, and southward to the Revillagigedo Islands through Mon before starting to subside. Fresh to strong N gap winds can be expected over the Gulf of Tehuantepec through Sun night. Elsewhere, benign marine conditions are expected. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh winds to locally strong are over the Papagayo region, with moderate winds downstream of Papagayo to near 91W. Light to gentle winds are elsewhere. Seas are in the 3-6 ft range. For the forecast, moderate to fresh NE to E winds are expected to pulse over and downstream of the Papagayo region into early next week, except pulsing to strong Sun night. Moderate or lighter winds are forecast elsewhere during the forecast period. ...REMAINDER OF THE AREA... Please see the Special Features section for details on a large NW swell event. Aside from the winds and seas associated with a low pressure center over the northern waters, the pressure gradient between a 1029 mb high pressure centered near 35N138W and lower pressure in the vicinity of the ITCZ is supporting fresh winds N of the ITCZ and W of 125W. Large NW swell is propagating across the waters N of 20N, with seas in the 8-11 ft range W of a line from 20N130W to 30N116W. Seas of 8-10 ft are also over the waters N of the ITCZ to 20N and W of 130W. Gentle to moderate winds, and seas of 4-7 ft, prevail over the remainder of the discussion waters. The low will progress eastward into the Baja California Norte waters today, with fresh to strong winds following the low. Rough seas of 8 ft or greater generated from this system will propagate across the area, covering much of the discussion waters N of 08N and W of 115W this weekend before starting to slowly subside early next week. Moderate to fresh trades will continue over the waters N of the ITCZ to near 20N and W of 120W through the middle of next week. $$ AL ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC221527_C_KWBC_20251122152817_16515500-48-TWDEP.txt ****0000004618**** AXPZ20 KNHC 221527 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Sat Nov 22 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 1200 UTC surface analysis and satellite imagery through 1500 UTC. ...SPECIAL FEATURES... Large NW swell over the northern waters: A 1007 mb low pressure is centered near 28N118W. A 1028 mb high pressure is centered near 35N138W. The pressure gradient between these features is supporting near gale force winds W of the low. The low will shift further eastward while weakening slightly. This will loosen the pressure gradient and further diminish winds. This system has ushered in a large set of NW swell. Very rough seas greater than 12 ft are currently N of 26N between 119W and 132W. These rough seas will shift SE across the waters N of 25N and W of 117W today before subsiding below 12 ft tonight. Seas are currently peaking near 17 ft. 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 09N79W to 10N110W. The ITCZ extends from 10N110W to 07N140W. No significant convection is noted along these boundaries at this time. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see the Special Features section for details on a large NW swell event. An area of low pressure approaching the Baja California Norte waters is preceded by moderate to fresh winds. Moderate winds are noted near the Revillagigedo Islands. Fresh to locally strong winds are over the Gulf of Tehuantepec. Light to gentle winds prevail elsewhere. Seas are in the 8-13 ft range W of Baja California Norte. Elsewhere, seas are in the 4-6 ft range over the open waters off Mexico. Over the Gulf of California, seas are 3 ft or less. For the forecast, the area of low pressure will shift across the Baja California Norte waters through tonight, generating fresh to strong NW to W winds with scattered showers and isolated thunderstorms west of Baja California Norte. Large NW swell accompanying this low will spread over the waters west of the Baja California peninsula, and southward to the Revillagigedo Islands through Mon before starting to subside. Fresh to strong N gap winds can be expected over the Gulf of Tehuantepec through Sun night. Elsewhere, benign marine conditions are expected. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh winds to strong are over the Papagayo region, with moderate winds downstream of Papagayo to near 91W. Light to gentle winds are elsewhere. Seas are in the 3-6 ft range. For the forecast, moderate to fresh NE to E winds are expected to pulse over and downstream of the Papagayo region into early next week, except pulsing to strong Sun night. Moderate or lighter winds are forecast elsewhere during the forecast period. ...REMAINDER OF THE AREA... Please see the Special Features section for details on a large NW swell event. Aside from the winds and seas associated with a low pressure center over the northern waters, the pressure gradient between a 1029 mb high pressure centered near 35N138W and lower pressure in the vicinity of the ITCZ is supporting fresh winds N of the ITCZ and W of 125W. Large NW swell is propagating across the waters N of 20N, with seas in the 8-11 ft range W of a line from 20N130W to 30N116W. Seas of 8-10 ft are also over the waters N of the ITCZ to 20N and W of 130W. Gentle to moderate winds, and seas of 4-7 ft, prevail over the remainder of the discussion waters. The low will progress eastward into the Baja California Norte waters today, with fresh to strong winds following the low. Rough seas of 8 ft or greater generated from this system will propagate across the area, covering much of the discussion waters N of 08N and W of 115W this weekend before starting to slowly subside early next week. Moderate to fresh trades will continue over the waters N of the ITCZ to near 20N and W of 120W through the middle of next week. $$ ERA ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC222106_C_KWBC_20251122210725_29294990-544-TWDEP.txt ****0000004599**** AXPZ20 KNHC 222106 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Sat Nov 22 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... Large NW swell over the northern waters: A 1009 mb low pressure is centered near 28N117W. The pressure gradient present across the offshore waters W of the Baja California Norte is supporting near gale force winds W of the low. The low will shift further eastward through the weekend while weakening. This will loosen the pressure gradient and further diminish winds. This system has ushered in a large set of NW swell. Very rough seas greater than 12 ft are currently N of 25N between 118W and 126W. These rough seas will subside below 12 ft tonight. Seas are currently peaking near 14 ft. 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 09N84W to 07N103W. The ITCZ extends from 07N103W to 07N140W. Scattered moderate convection is from 08N to 12N between 116W and 122W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see the Special Features section for details on a large NW swell event. An area of low pressure is over the Baja California Norte waters with fresh to strong winds prevailing N of 24N. Fresh to strong N winds are also noted over the northern section of the Gulf of California and the Gulf of Tehuantepec. Light to gentle winds prevail elsewhere. Seas are in the 8-14 ft range W of Baja California Norte. Elsewhere, seas are in the 4-6 ft range over the open waters off Mexico. Over the Gulf of California, seas are 3 ft or less. For the forecast, the area of low pressure will shift across the Baja California Norte waters through tonight, generating fresh to strong NW to W winds with scattered showers and isolated thunderstorms west of Baja California Norte. Large NW swell accompanying this low will spread over the waters west of the Baja California peninsula, and southward to the Revillagigedo Islands through Mon before starting to subside. Fresh to strong N gap winds can be expected over the Gulf of Tehuantepec through Sun night. Elsewhere, benign marine conditions are expected. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh winds to strong are over the Papagayo region, with moderate winds downstream of Papagayo to near 91W. Light to gentle winds are elsewhere. Seas are in the 3-6 ft range. For the forecast, moderate to fresh NE to E winds are expected to pulse over and downstream of the Papagayo region into early next week, except pulsing to strong Sun night. Moderate or lighter winds are forecast elsewhere during the forecast period. ...REMAINDER OF THE AREA... Please see the Special Features section for details on a large NW swell event. Aside from the winds and seas associated with a low pressure center over the northern waters, the pressure gradient between a 1027 mb high pressure centered near 36N136W and lower pressure in the vicinity of the ITCZ is supporting fresh winds N of the ITCZ and W of 120W. Outside of the large swell area described above, NW swell is propagating across the waters N of 15N, with seas in the 8-12 ft range W of a line from 26N114W to 14N140W. Seas of 8-10 ft are also over the waters N of the ITCZ to 15N and W of 130W. Gentle to moderate winds and seas of 4-7 ft prevail over the remainder of the discussion waters. The low will progress eastward into the Baja California Norte waters through tonight, with fresh to strong winds following the low. Rough seas of 8 ft or greater generated from this system will propagate across the area, covering much of the discussion waters N of 08N and W of 115W this weekend before starting to slowly subside early next week. Moderate to fresh trades will continue over the waters N of the ITCZ to near 20N and W of 110W through the middle of next week. $$ ERA ########################### END OF MESSAGE SET ############################