--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2026-05-28 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC280204_C_KWBC_20260528020503_47448518-4261-TWDEP.txt ****0000004293**** AXPZ20 KNHC 280204 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Thu May 28 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 0200 UTC. ...TROPICAL WAVES... The axis of a tropical wave is near 94W north of 02N, moving westward at about 10 kt. Nearby convection is noted in the ITCZ/monsoon trough section below. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 11N86W to 10N107W to 08N130W to 09N140W. Scattered moderate and isolated strong convection is noted from 03N to 09N between 85W and 95W, and from 03N to 13N between 106W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A dissipating stationary front extends across Baja California Norte to near 25N122W. Gentle to moderate winds prevail west of Baja California and southward to near the Revillagigedo Islands. Gentle to moderate winds are over the northern Gulf of California. Light to gentle winds prevail elsewhere. Seas are in the 8-11 ft range off Baja California Norte, and 5-6 ft off Baja California Sur southward to near the Revillagigedo Islands. Elsewhere, seas are in the 4-5 ft range over the remainder of the open waters off Mexico, and 2-3 ft over the Gulf of California. For the forecast, moderate to fresh winds will prevail offshore Baja California through the period. NW swell over the waters off Baja California Norte will propagate southward offshore Baja California through Thu before decaying. Another set of NW swell will enter the waters N Punta Eugenia on Sun. This swell will spread south to cover the waters off Baja California by Mon before starting to subside. Fresh to strong S to SW gap winds will pulse in the northern Gulf of California tonight. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gentle to moderate winds prevail between the Galapagos Islands and Colombia. Light to gentle winds are noted elsewhere. Seas are in the 4-5 ft range across the discussion waters. For the forecast, a weak pressure pattern will result in light to gentle winds through the period. Large SW swell will enter the waters south of the Equator Fri, bringing rough seas to the waters between the Galapagos Islands and Colombia through early Sun before starting to subside. Otherwise, light to moderate seas will prevail across the forecast waters into early next week. ...REMAINDER OF THE AREA... High pressure covers the waters north of 20N. The pressure gradient between this area of high pressure and lower pressure within the monsoon trough is supporting moderate to fresh NE trades north of the monsoon trough to near 20N and west of about 120W. Wave heights over these waters are in the 6 to 9 ft range in a mix of tradewind swell and long-period NW to N swell. Moderate to fresh winds and seas of 7 to 11 ft in long- period northwest swell are north of 25N. Gentle to moderate winds are elsewhere N of the monsoon trough and also to its south. Wave heights over these waters are in the 5 to 7 ft range. For the forecast, little change is expected in winds for the next few days. NW to N swell N of 25N will spread southward, with wave heights of 8 to 9 ft reaching as far south as about 15N by Thu evening. The combination of the swell with wind generated waves produced by the fresh trade winds N of the monsoon trough is expected to generate rough seas over a good portion of these waters going into Fri. Afterward, the eastern portion of the remaining swell set will merge with a southerly swell set over the central waters during the weekend, with wave heights of 8 to 9 ft covering the area from just S of the southern tip of Baja California to near 03.4S between 98W and 120W, and from 07N to 18N between 120W and 140W. $$ AL ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC280804_C_KWBC_20260528080449_49676782-4165-TWDEP.txt ****0000004307**** AXPZ20 KNHC 280804 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Thu May 28 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 0800 UTC. ...TROPICAL WAVES... The axis of a tropical wave is near 95W north of 02N, moving westward at about 10 kt. Nearby convection is noted in the ITCZ/monsoon trough section below. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 11N86W to 10N110W to 09N120W to 09N140W. Scattered moderate and isolated strong convection is noted from 01N to 08N between 86W and 96W, and from 03N to 13N between 106W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Gentle to moderate winds prevail west of Baja California and southward to near the Revillagigedo Islands. Fresh to strong gap winds are over the northern Gulf of California, with gentle to moderate winds over the remainder of the Gulf. Light to gentle winds prevail elsewhere. Seas are in the 8-11 ft range off Baja California Norte, and 5-6 ft off Baja California Sur southward to near the Revillagigedo Islands. Elsewhere, seas are in the 4-5 ft range over the remainder of the open waters off Mexico. Seas of 4-5 ft are noted in the northern Gulf of California, with 2-3 ft seas over the remainder of the Gulf. For the forecast, moderate to fresh winds will prevail offshore Baja California through the period. NW swell over the waters off Baja California Norte will propagate southward offshore Baja California today before decaying. Another set of NW swell will enter the waters N Punta Eugenia on Sun. This swell will spread south to cover the waters off Baja California by Mon before starting to subside. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gentle to moderate winds prevail between the Galapagos Islands and Colombia, as well as in the Gulf of Papagayo. Light to gentle winds are noted elsewhere. Seas are in the 4-5 ft range across the discussion waters, reaching 6 ft south of the Galapagos Islands. For the forecast, a weak pressure pattern will result in light to gentle winds through the period. Large SW swell will enter the waters south of the Equator Fri, bringing rough seas to the waters between the Galapagos Islands and Colombia through early Sun before starting to subside. Otherwise, light to moderate seas will prevail across the forecast waters into early next week. ...REMAINDER OF THE AREA... High pressure covers the waters north of 20N. The pressure gradient between this area of high pressure and lower pressure within the monsoon trough is supporting moderate to fresh NE trades north of the monsoon trough to near 20N and west of about 120W. Wave heights over these waters are in the 6 to 8 ft range in a mix of tradewind swell and long-period NW to N swell. Seas of 7 to 10 ft in long- period northwest swell are north of 24N. Gentle to moderate winds are elsewhere N of the monsoon trough and also to its south. Wave heights over these waters are in the 5 to 7 ft range. For the forecast, little change is expected in winds for the next few days. NW to N swell N of 25N will spread southward, with wave heights of 8 to 9 ft reaching as far south as about 15N by this evening. The combination of the swell with wind generated waves produced by the fresh trade winds N of the monsoon trough is expected to generate rough seas over a good portion of these waters going into Fri. Afterward, the eastern portion of the remaining swell set will merge with a southerly swell over the central waters during the weekend, with wave heights of 8 to 9 ft covering the area from just S of the southern tip of Baja California to near 03.4S between 98W and 120W, and from 07N to 18N between 120W and 140W. $$ AL ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC281551_C_KWBC_20260528155208_47448518-4303-TWDEP.txt ****0000005031**** AXPZ20 KNHC 281551 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Thu May 28 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 1200 UTC surface analysis and satellite imagery through 1545 UTC. ...TROPICAL WAVES... The axis of a tropical wave is analyzed from 12N97W to 03N98W. It is moving westward around 10 kt. Nearby convection is noted in the ITCZ/monsoon trough section below. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from northwest Colombia southwestward to 07N79W, then northwestward to 10N90W to 09N98W to 11N105W to 10N113W to 09N120W and to 08N130W, where it transitions to the ITCZ to 08N130W to 08N135W and to 11N140W. Numerous strong convection is within 120 nm north of the trough between 110W-115W, also within 90 nm north of the trough between 78W-80W and within 60 nm south of the trough between 78W and 80W. Numerous moderate to isolated strong convection is from 04N to 10N between 107W-113W, and within 180 nm north of the trough between 119W-125W. Scattered moderate to isolated strong convection is from 03N to 09N between 85W-95W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Gentle to moderate winds prevail west of Baja California and southward to near the Revillagigedo Islands. Fresh to strong gap winds are over the northern Gulf of California, with gentle to moderate winds over the remainder of the Gulf. Light to gentle winds prevail elsewhere. Seas are in the 7 to 10 ft range in NW swell off Baja California Norte, and 5 to 6 ft off Baja California Sur southward to near the Revillagigedo Islands. Elsewhere, seas of 4 to 5 ft are over the remainder of the open waters off Mexico. Seas of 4 to 5 ft are in the northern Gulf of California, with 2 to 4 ft seas over the remainder of the Gulf. For the forecast, moderate to fresh winds will prevail offshore Baja California through the period. NW swell over the waters off Baja California Norte will propagate southward offshore Baja California today before decaying. Another set of NW swell will enter the waters N Punta Eugenia on Sun. This swell will spread south to cover the waters off Baja California by Mon before it starts to subside. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gentle to moderate winds prevail between the Galapagos Islands and Colombia, as well as in the Gulf of Papagayo. Light to gentle winds are noted elsewhere. Seas are in the 4 to 5 ft range across the discussion waters, reaching 6 ft south of the Galapagos Islands as noted in recent altimeter satellite data passes. For the forecast, a weak pressure pattern will result in light to gentle winds through the period. Large SW swell will enter the waters south of the Equator Fri, bringing rough seas to the waters between the Galapagos Islands and Colombia through early Sun before starting to subside. Otherwise, light to moderate seas will prevail across the forecast waters into early next week. ...REMAINDER OF THE AREA... High pressure covers the waters north of 20N. The pressure gradient between this area of high pressure and lower pressure within the monsoon trough is supporting moderate to fresh NE trade winds north of the monsoon trough to near 20N and west of about 120W. Wave heights over these waters are in the 6 to 8 ft range in a mix of tradewind swell and long-period NW to N swell. Seas of 7 to 10 ft in long-period northwest swell are north of 23N as indicated in recent altimeter satellite data passes and by a few Sofar Ocean Spotter buoys. Gentle to moderate winds are elsewhere N of the monsoon trough and also to its south. Wave heights over these waters are generally in the 5 to 7 ft range as highlighted in recent altimeter satellite data passes. For the forecast, little change is expected in winds for the next few days. NW to N swell N of 25N will spread southward, with wave heights of 8 to 9 ft reaching as far south as about 15N by this evening. The combination of the swell with wind generated waves produced by the fresh trade winds N of the monsoon trough is expected to generate rough seas over a good portion of these waters going into Fri. Afterward, the eastern portion of the remaining swell set will merge with a southerly swell over the central waters during the weekend, with wave heights of 8 to 9 ft covering the area from just S of the southern tip of Baja California to near 03.4S between 98W and 120W, and from 07N to 18N between 120W and 140W. $$ Aguirre ########################### END OF MESSAGE SET ############################