--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2026-04-30 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC300427_C_KWBC_20260430042811_49676782-2235-TWDEP.txt ****0000003386**** AXPZ20 KNHC 300427 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Thu Apr 30 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 0300 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough axis extends from 08N78W to 07N90W. An ITCZ extends from 07N90W to 06N106W to 06N123W. Numerous moderate to scattered strong convection is noted from 03N to 09N between 114W and 127W. Scattered moderate convection is seen from 03N to 06N between 86W and 100W...and from 03N to 05N between 108W and 113W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Ridging off Baja California combined with troughing over northwest Mexico supports moderate to fresh NW to N winds and seas of 4 to 7 ft off the peninsula. Moderate NW winds with 3 to 4 ft seas are seen across the central and southern Gulf of California, and light to gentle winds and seas at 1 to 2 ft dominate the rest of the Gulf. Gentle winds with 4 to 6 ft seas in mixed moderate swell prevail for the offshore waters of central and southern Mexico. For the forecast, the pressure gradient between high pressure building southward from the North Pacific and lower pressure over northwestern Mexico will maintain fresh to locally strong NW winds over waters on both sides of Baja California through Thu night. By Sun into Mon, strong to near-gale force gap winds and rough seas will impact the Gulf of Tehuantepec. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh NE to E gap winds and seas of 4 to 6 ft are present at the Papagayo region. Moderate to fresh N winds with 3 to 4 ft seas are noted at the Gulf of Panama. Gentle S winds and 4 to 7 ft seas in moderate S swell persist in waters near the Galapagos Islands and off Ecuador. Light to gentle winds with 2 to 4 ft seas prevail for the remainder offshore waters in Central America and off Colombia. For the forecast, fresh NE to E winds will pulse in the Papagayo region tonight and Thu night. Moderate to fresh N winds will pulse in the Gulf of Panama during this time. Moderate long- period S swell will will gradually diminish across the waters near Ecuador and the Galapagos Islands into the weekend. ...REMAINDER OF THE AREA... The pressure gradient between a surface trough extending from roughly 29N125W to 15N132W and high pressure to the NW is leading to fresh NE winds and 5 to 8 ft seas over the NW waters. Convection previously associated with this trough has dissipated this afternoon. Elsewhere N of the ITCZ, moderate to fresh mainly NE winds prevail, with 4 to 7 ft seas. To the S, similar seas prevail, in a mix of S and NW long period-swell, and mainly gentle SE winds dominate. For the forecast, winds south of the ITCZ will become light to gentle starting Thu night. Moderate to fresh NE winds and mainly moderate seas will prevail north of the ITCZ. $$ Chan ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC300946_C_KWBC_20260430094713_49676782-2250-TWDEP.txt ****0000003761**** AXPZ20 KNHC 300946 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Thu Apr 30 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 0830 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough axis extends from 08N78W to 07N90W. An ITCZ extends from 07N90W to 06N106W to 06N123W. Numerous moderate to scattered strong convection is noted from 03N to 09N between 114W and 127W. Scattered moderate convection is seen from 03N to 06N between 86W and 100W...and from 03N to 05N between 108W and 113W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A surface ridge extends southeastward from a 1030 mb high near 35N138W to near the Revillagigedo Islands. Tight gradient between this feature and a surface trough over northwestern Mexico is supporting fresh to locally strong NW to N winds east of Baja California, and also in the Gulf of California. Seas east of Baja range from 5 to 7 ft in moderate NW swell, while seas in the Gulf are from 2 to 4 ft. Mainly moderate NW to N winds and 4 to 6 ft seas are near the Revillagigedo Islands. Light to gentle winds with seas at 2 to 4 ft prevail for the offshore waters of southern Mexico. For the forecast, the pressure gradient between a 1030 mb high at the Northeast Pacific and a trough over northwestern Mexico will maintain fresh to locally strong NW winds over waters on both sides of Baja California through early Fri morning. From Sun into Mon, strong to near-gale force gap winds and rough seas will impact the Gulf of Tehuantepec. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Convergent surface winds are triggering scattered showers and isolated thunderstorms off the coast of Guatemala. Fresh NE to E gap winds and seas of 4 to 6 ft are present at the Papagayo region. Moderate to fresh N winds with 3 to 4 ft seas are noted at the Gulf of Panama. Gentle S winds and 4 to 6 ft seas in moderate S swell persist in waters near the Galapagos Islands and off Ecuador. Light to gentle winds with 2 to 4 ft seas prevail for the remainder offshore waters in Central America and off Colombia. For the forecast, fresh NE to E winds will pulse in the Papagayo region until later this morning and also tonight. Moderate to fresh N winds will pulse in the Gulf of Panama during this time. Moderate long-period S swell will gradually diminish across the waters near Ecuador and the Galapagos Islands through the weekend. ...REMAINDER OF THE AREA... A surface trough is producing scattered moderate to isolated strong convection from 09N to 12N between 130W and 134W. The pressure gradient between a surface trough extending from roughly 29N125W to 20N128W and high pressure to the northwest is sustaining fresh with locally strong NE winds and 6 to 9 ft seas north of the ITCZ and west of 123W. Elsewhere north of the ITCZ, moderate with locally fresh N to NE winds and 4 to 7 ft seas exist. South of the ITCZ, gentle E to SE winds and seas of 4 to 6 ft dominate. For the forecast, north of 10N, winds will gradually decrease to gentle while seas should subside to between 5 and 7 ft by early Mon. Winds south of the ITCZ are going to briefly becoming light to gentle Fri and Fri night. $$ Chan ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC301603_C_KWBC_20260430160456_47448518-2314-TWDEP.txt ****0000002930**** AXPZ20 KNHC 301603 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Thu Apr 30 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 1500 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough axis extends from 00N78W along the Panama coast to 08N91W. An ITCZ extends from 08N91W to beyond 06N140W. Numerous moderate and scattered strong convection is noted from 04N-10N between 117W-135W. Scattered moderate and isolated strong convection is noted north of 04N and east of 81W. Scattered moderate convection is seen from 05N-07N between 95W-102W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A surface ridge extends southeastward from 30N128W to 20N115W to 15N110W. Winds are NW moderate to fresh west of the Baja California peninsula and over the central and S Gulf of California. Elsewhere, winds are moderate or weaker. Seas are 5-6 ft in NW swell west of the Baja California peninsula, 3-5 ft in mixed swell south of S Mexico, and 1-4 ft over the Gulf of California. For the forecast, surface ridging over the Pacific with lower pressure over NW Mexico/SW United States will maintain fresh NW winds over waters on both sides of the Baja California peninsula through early Fri morning. Beginning Sat night, a Gulf of Tehuantepec gap wind event will occur. Near-gale N winds are forecast during Sun, with gale-force winds being possible. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh NE winds are occurring over the Gulf of Papagayo region with seas 5-6 ft this morning. Elsewhere winds are moderate or weaker with seas 4-6 ft in S swell. For the forecast, fresh NE to E winds will pulse in the Papagayo region through Fri morning. Elsewhere, quiescent conditions should prevail through early next week. ...REMAINDER OF THE AREA... A surface ridge extends southeastward from 30N128W to 20N115W to 15N110W. The pressure gradient between the ridge and lower pressure over the ITCZ is forcing moderate to fresh NE trades north of 09N. Elsewhere winds are moderate or weaker. Seas are 8-9 ft from 18N-23N west of 133W in mixed N swell and wind waves. Elsewhere seas are 5-7 ft in mixed swell. A weakening pressure gradient will gradually diminish the trade wind strength and extent through the weekend. A N to NW swell will continue to combine with wind waves to cause 8-10 ft seas from 10N-20N west of 130W through the weekend. $$ Landsea ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC302140_C_KWBC_20260430214118_49676782-2277-TWDEP.txt ****0000002983**** AXPZ20 KNHC 302140 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Thu Apr 30 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 1800 UTC surface analysis and satellite imagery through 2130 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough axis extends from 07N78W along the Panama coast to 07N99W. An ITCZ extends from 08N100W to beyond 08N140W. Numerous moderate and scattered strong convection is noted from 03N-10N between 117W-134W. Scattered moderate and isolated strong convection is noted from 03N-06N east of 100W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A surface ridge extends southeastward from 30N128W to 20N115W to 15N108W. Winds are NW moderate to fresh west of the Baja California peninsula. Elsewhere, winds are moderate or weaker. Seas are 5-7 ft in NW swell west of the Baja California peninsula, 3-5 ft in mixed swell south of S Mexico, and 1-4 ft over the Gulf of California. For the forecast, beginning Sat night, a Gulf of Tehuantepec gap wind event will occur. Gale-force N winds are forecast during Sun. The event should quickly diminish by Mon. Surface ridging over the Pacific with lower pressure over NW Mexico/SW United States will maintain fresh to locally strong NW winds over waters on both sides of the Baja California peninsula through tomorrow morning. Looking ahead, a surface trough will promote S to SW fresh to strong winds over the N Gulf of California Sun afternoon and night. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Winds are moderate or weaker with seas 4-6 ft in S swell over forecast waters. Scattered moderate and isolated strong convection is noted from 03N-06N east of 100W. For the forecast, fresh NE to E winds will pulse in the Papagayo region through early morning morning. Elsewhere, quiescent conditions should prevail through early next week. ...REMAINDER OF THE AREA... A surface ridge extends southeastward from 30N128W to 20N115W to 15N108W. The pressure gradient between the ridge and lower pressure over the ITCZ is forcing moderate to fresh NE trades north of 09N. Elsewhere winds are moderate or weaker. Seas are 8-9 ft from 18N-22N west of 134W in mixed N swell and wind waves. Elsewhere seas are 5-7 ft in mixed swell. A weakening pressure gradient will gradually diminish the trade wind strength and extent through early next week. A N to NW swell will continue to combine with wind waves to cause 8-10 ft seas from 10N-20N west of 130W through the weekend. $$ Landsea ########################### END OF MESSAGE SET ############################