--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2026-06-20 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC200309_C_KWBC_20260620031033_9109880-6410-TWDEP.txt ****0000004124**** AXPZ20 KNHC 200309 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Sat Jun 20 2026 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 0000 UTC surface analysis and satellite imagery through 0305 UTC. ...TROPICAL WAVES... A tropical wave is along 90W, south of 16N, moving west at 5 to 10 kt. Scattered moderate convection is noted from 02N to 07N and between 85W and 93W. A tropical wave is along 97W, south of 15N, moving west at 5 kt. Scattered moderate to isolated strong convection is observed from 02N to 10N and between 93W and 100W. A tropical wave is along 116W, south of 18N, moving west at 5 to 10 kt. Scattered moderate to isolated strong convection is present from 09N to 17N and between 104W AND 120W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from the coast of Costa Rica near 10N85W to 07N97W to 13N113W to 06N131W. The ITCZ stretches from 06N131W to beyond 06N140W. Scattered moderate convection is evident south of 10N and west of 120W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... High pressure dominates the offshore waters of Mexico. The moderate pressure gradient between the strong ridge in the NE Pacific and lower pressures in NW Mexico result in moderate to locally fresh northerly winds in the offshore waters of Baja California. Seas in these waters are 5-7 ft. In the remainder of the Mexican offshore waters, including the Gulf of Tehuantepec, moderate or lighter winds and slight to moderate seas prevail. For the forecast, a ridge will remain in place across the offshore forecast waters of Baja California promoting gentle to moderate northerly winds, except for locally fresh speeds pulsing at night through the weekend. Looking ahead, a surface trough moving across the Bay of Campeche will force fresh to strong northerly gap winds in the Gulf of Tehuantepec late Tue night into Wed night, with seas building to 8 or 9 ft by Wed night. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... High pressure north of the Caribbean Sea forces moderate easterly trade winds and moderate seas across the Gulf of Papagayo. Mainly moderate southerly winds and moderate seas are present south of the Equator. Elsewhere, light to gentle winds and slight to moderate seas prevail. For the forecast, gentle to moderate southerly winds and moderate seas will prevail across the offshore waters between Ecuador and the Galapagos Islands through early next week. Meanwhile, moderate to fresh NE to E winds and moderate seas are expected in the Papagayo region into early next week. Winds will freshen to strong speeds starting late Mon with seas building to 8 or 9 ft by late Tue. Elsewhere, light to gentle winds and slight to moderate seas in southwest swell are forecast elsewhere through the next several days. ...REMAINDER OF THE AREA... High pressure centered well north of the area dominates the remainder of the tropical eastern Pacific. Moderate NE-E winds and moderate seas are found north of the ITCZ to 20N and west of 130W. In the meantime, moderate SE winds and seas of 6-8 ft are noted south of 05N and east of 120W. Elsewhere, light to gentle winds and moderate seas are prevalent. For the forecast, additional pulses of SW swell will continue to propagate across the forecast waters E of 120W generating moderate to locally rough seas. Otherwise, little changes are expected in winds and seas through the upcoming weekend and into early next week as a ridge remains in control of the weather pattern across the area. Tropical cyclone formation is not expected during the next 7 days. $$ Delgado ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC200838_C_KWBC_20260620083847_32440682-3367-TWDEP.txt ****0000004168**** AXPZ20 KNHC 200838 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Sat Jun 20 2026 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 0000 UTC surface analysis and satellite imagery through 0835 UTC. ...TROPICAL WAVES... A tropical wave is along 90W, south of 16N, moving west at 5 kt. A few showers are noted near the trough axis. A tropical wave is along 98W, south of 15N, moving west at 5 kt. Scattered moderate to isolated strong convection is observed from 02N to 13N and between 93W and 103W. A tropical wave is along 117W, south of 18N, moving west at 5 to 10 kt. Scattered moderate to isolated strong convection is present from 04N to 17N and between 107W AND 125W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from the coast of Costa Rica near 10N85W to 07N92W to 15N104W to 04N130W. The ITCZ stretches from 04N130W to beyond 07N140W. Scattered moderate convection is evident south of 10N and west of 125W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A moderate pressure gradient results in moderate to locally fresh NW winds in the offshore waters of Baja California, especially north of Cabo San Lazaro and off Cabo San Lucas. Seas in these waters are 5-7 ft. A recent scatterometer satellite pass indicate that moderate or weaker winds are found in the rest of the Mexican offshore waters, including the Gulf of Tehuantepec. Slight to moderate seas are prevalent in the waters described. For the forecast, a ridge will persist across the offshore forecast waters of Baja California through the weekend promoting gentle to moderate northerly winds, except for locally fresh speeds pulsing at night. Looking ahead, a surface trough moving across the Bay of Campeche will force fresh to strong northerly gap winds in the Gulf of Tehuantepec late Tue night into Wed night, with seas building to 8 or 9 ft by Wed night. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... The subtropical ridge centered well north of the area supports moderate to fresh easterly trade winds and moderate seas across the Gulf of Papagayo region, extending downstream to 90W. Farther south, moderate southerly winds and moderate seas are occurring south of 02S. Elsewhere, light to gentle winds and slight to moderate seas prevail. For the forecast, moderate to fresh easterly trade winds and moderate seas are expected in the Papagayo region into early next week. Winds will freshen to strong speeds starting late Mon with seas building to 8 or 9 ft by late Tue. The gap winds in the Gulf of Tehuantepec will produce seas to 8 ft in the far offshore waters of Guatemala by midweek. Meanwhile, mainly moderate southerly winds and moderate seas will prevail across the offshore waters between Ecuador and the Galapagos Islands through early next week. ...REMAINDER OF THE AREA... A strong high pressure centered well north of the area extends a weak ridge into the remainder of the tropical eastern Pacific. Moderate NE winds and moderate seas are occurring from 08N to 22N and west of 125W. In the meantime, moderate SE winds and a cross equatorial swell producing seas of 6-8 ft are noted south of 05N and east of 120W. Elsewhere, light to gentle winds and moderate seas are prevalent. For the forecast, additional pulses of SW swell will continue to propagate across the forecast waters E of 120W generating moderate to locally rough seas. Otherwise, little changes are expected in winds and seas through the weekend and into early next week as a ridge remains in control of the weather pattern across the area. Tropical cyclone formation is not expected during the next 7 days. $$ Delgado ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC200841_C_KWBC_20260620084247_32440682-3368-TWDEP.txt ****0000004169**** AXPZ20 KNHC 200841 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Sat Jun 20 2026 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 0835 UTC. ...TROPICAL WAVES... A tropical wave is along 90W, south of 16N, moving west at 5 kt. A few showers are noted near the trough axis. A tropical wave is along 98W, south of 15N, moving west at 5 kt. Scattered moderate to isolated strong convection is observed from 02N to 13N and between 93W and 103W. A tropical wave is along 117W, south of 18N, moving west at 5 to 10 kt. Scattered moderate to isolated strong convection is present from 04N to 17N and between 107W AND 125W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from the coast of Costa Rica near 10N85W to 07N92W to 15N104W to 04N130W. The ITCZ stretches from 04N130W to beyond 07N140W. Scattered moderate convection is evident south of 10N and west of 125W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A moderate pressure gradient results in moderate to locally fresh NW winds in the offshore waters of Baja California, especially north of Cabo San Lazaro and off Cabo San Lucas. Seas in these waters are 5-7 ft. A recent scatterometer satellite pass indicate that moderate or weaker winds are found in the rest of the Mexican offshore waters, including the Gulf of Tehuantepec. Slight to moderate seas are prevalent in the waters described. For the forecast, a ridge will persist across the offshore forecast waters of Baja California through the weekend promoting gentle to moderate northerly winds, except for locally fresh speeds pulsing at night. Looking ahead, a surface trough moving across the Bay of Campeche will force fresh to strong northerly gap winds in the Gulf of Tehuantepec late Tue night into Wed night, with seas building to 8 or 9 ft by Wed night. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... The subtropical ridge centered well north of the area supports moderate to fresh easterly trade winds and moderate seas across the Gulf of Papagayo region, extending downstream to 90W. Farther south, moderate southerly winds and moderate seas are occurring south of 02S. Elsewhere, light to gentle winds and slight to moderate seas prevail. For the forecast, moderate to fresh easterly trade winds and moderate seas are expected in the Papagayo region into early next week. Winds will freshen to strong speeds starting late Mon with seas building to 8 or 9 ft by late Tue. The gap winds in the Gulf of Tehuantepec will produce seas to 8 ft in the far offshore waters of Guatemala by midweek. Meanwhile, mainly moderate southerly winds and moderate seas will prevail across the offshore waters between Ecuador and the Galapagos Islands through early next week. ...REMAINDER OF THE AREA... A strong high pressure centered well north of the area extends a weak ridge into the remainder of the tropical eastern Pacific. Moderate NE winds and moderate seas are occurring from 08N to 22N and west of 125W. In the meantime, moderate SE winds and a cross equatorial swell producing seas of 6-8 ft are noted south of 05N and east of 120W. Elsewhere, light to gentle winds and moderate seas are prevalent. For the forecast, additional pulses of SW swell will continue to propagate across the forecast waters E of 120W generating moderate to locally rough seas. Otherwise, little changes are expected in winds and seas through the weekend and into early next week as a ridge remains in control of the weather pattern across the area. Tropical cyclone formation is not expected during the next 7 days. $$ Delgado ########################### END OF MESSAGE SET ############################