--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2026-04-05 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC050315_C_KWBC_20260405031555_38666572-519-TWDEP.txt ****0000004654**** AXPZ20 KNHC 050315 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Sun Apr 5 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. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: Building ridge across the eastern slopes of the Sierra Madre Mountains in Mexico will force the next gap wind event in the Gulf of Tehuantepec. Winds are forecast to increase to 20 to 30 kt, with seas building to 8 ft by Sun night. Then, winds will further increase to gale force by Mon morning, with seas building to 12 or 13 ft on Mon night. Gusty winds to near storm force may occur. These marine conditions are forecast to persist through Tue morning. Seas generated from this gap wind event will spread well away from the Tehuantepec area, with seas 8 ft or greater reaching as far south as 11N Mon night into Tue. Please read the latest High Seas Forecast issued by the National Hurricane Center at website: https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 08N83W to 06N98W. The ITCZ stretches from 06N98W to 05N125W to beyond 04N140W. As is typical for this time of the year, a second ITCZ is located south of the Equator and runs from 08S87W to beyond 04S140W. Scattered moderate convection is observed from 01N to 08N and west of 117W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A robust high pressure north of the area supports moderate to locally fresh northerly winds in the offshore waters of Baja California, especially north of Cabo San Lazaro. Seas in these waters are 6-8 ft. Moderate to locally fresh NW winds and seas of 2-5 ft are evident in the Gulf of California. In the remainder of the Mexican offshore waters, including the Gulf of Tehuantepec, light to gentle winds and moderate seas in south swell prevail. For the forecast, a Gale Warning is in effect for the Gulf of Tehuantepec. Please, see the Special Features section for more details. Meanwhile, NW swell producing locally rough seas off Baja California Norte will diminish tonight. Gentle to moderate winds and slight seas will prevail in the Gulf of California tonight through midweek next week. Moderate to locally fresh NW winds and moderate seas are expected off Baja California through the forecast period. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... High pressure north of the Caribbean is supporting moderate to fresh easterly trade winds across the Gulf of Papagayo region. Seas in these waters are 4-5 ft. Farther east, moderate to locally fresh northerly winds and moderate seas are present in the Gulf of Panama. Meanwhile, light to gentle winds and moderate seas dominate the remainder of the offshore forecast waters. For the forecast, fresh to strong gap winds are expected during the nighttime and early morning hours in the Papagayo region and downwind to about 88W through the forecast period. Moderate to fresh northerly winds are expected in the Gulf of Panama tonight. Then, mainly gentle to moderate N winds are expected through the middle of the next week. Residual southerly swell will maintain moderate seas between Ecuador and the Galapagos Islands through this weekend while gradually subsiding. ...REMAINDER OF THE AREA... The combination of a weak surface trough and strong upper level winds continue to support abundant cloudiness and possible showers over the western waters. At the surface, a broad subtropical ridge forces moderate to fresh easterly winds and seas of 6-8 ft north of the ITCZ and west of 110W. Elsewhere, moderate or lighter winds and moderate seas are prevalent. For the forecast, a ridge will support moderate to locally fresh easterly winds and moderate to locally rough seas across the trade wind zone into the middle of next week. A cold front is forecast to reach 30N140W by Sun night, and extend from 30N137W to 24N140W by Mon morning. Gentle to moderate winds are forecast on either side of the front. Seas will briefly build to 9 ft behind the front Mon night into Tue. $$ Delgado ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC050922_C_KWBC_20260405092300_38666572-536-TWDEP.txt ****0000004945**** AXPZ20 KNHC 050922 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Sun Apr 5 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 0905 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: Building ridge across the eastern slopes of the Sierra Madre Mountains in Mexico will force the next gap wind event in the Gulf of Tehuantepec. Winds are forecast to increase to 20 to 30 kt, with seas building to 8 ft by tonight. Then, winds will further increase to gale force by Mon morning, with seas building to 12 or 13 ft on Mon night. Gusty winds to near storm force may occur. These marine conditions are forecast to persist through Tue morning. Seas generated from this gap wind event will spread well away from the Tehuantepec area, with seas 8 ft or greater reaching as far south as 11N Mon night into Tue. Please read the latest High Seas Forecast issued by the National Hurricane Center at website: https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 08N83W to 06N98W. The ITCZ stretches from 06N98W to 06N120W to beyond 04N140W. A second ITCZ is located south of the Equator and runs from 08S87W to beyond 05S140W. Scattered moderate convection is present from 01N to 08N and west of 120W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A recent scatterometer satellite pass indicate that the strong ridge over the western United States forces moderate to locally fresh NW winds across the offshore waters of Baja California, especially north of Cabo San Lazaro. Seas in these waters are 6-8 ft. Gentle to moderate NW winds and seas of 2-5 ft are evident in the Gulf of California. In the remainder of the Mexican offshore waters, including the Gulf of Tehuantepec, light to gentle winds and moderate seas in south swell prevail. For the forecast, a Gale Warning is in effect for the Gulf of Tehuantepec. Please, see the Special Features section for more details. Meanwhile, NW swell producing locally rough seas off Baja California Norte will diminish by this morning. Gentle to moderate winds and slight seas will prevail in the Gulf of California through midweek next week. Moderate to locally fresh NW winds and moderate seas are expected off Baja California through the forecast period. However, winds may increase to strong north of Punta Eugenia Thu night. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... High pressure north of the Caribbean is supporting fresh to locally strong easterly trade winds across the Gulf of Papagayo region. Seas in these waters are 4-6 ft. Farther east, moderate to locally fresh northerly winds and moderate seas are present in the Gulf of Panama. Meanwhile, light to gentle winds and moderate seas dominate the remainder of the offshore forecast waters. For the forecast, fresh to strong gap winds are expected during the nighttime and early morning hours in the Papagayo region and downwind to about 89W through the forecast period. Moderate to locally fresh northerly winds are forecast in the Gulf of Panama through at least midweek next week. A gap wind event in the Tehuantepec region will produce seas to 8 ft in the far offshore waters of Guatemala Mon night through Tue night. Light to gentle winds and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... A deep upper level trough and a weak surface trough combine to produce abundant cloudiness and some showers over the western waters, especially north of 17N and west of 123W. At the surface, a 1022 mb high pressure near 32N130W, wedged between two low pressure systems, dominates the remainder of the tropical eastern Pacific. A recent scatterometer satellite pass captured moderate to fresh easterly winds north of the ITCZ and west of 110W. Seas in these waters remain around 6 to 8 ft. Elsewhere, moderate or lighter winds and moderate seas are prevalent. For the forecast, ridging will support moderate to locally fresh easterly winds and moderate to locally rough seas across the trade wind zone into the middle of next week. A cold front is forecast to reach 30N140W tonight, and extend from 30N137W to 24N140W by Mon morning. Gentle to moderate winds are forecast on either side of the front. Seas will briefly build to 9 ft behind the front Mon night into Tue. $$ Delgado ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC051518_C_KWBC_20260405151903_38666572-561-TWDEP.txt ****0000005391**** AXPZ20 KNHC 051518 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Sun Apr 5 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 1400 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: Building ridge across the eastern slopes of the Sierra Madre Mountains in Mexico will force the next gap wind event in the Gulf of Tehuantepec. Winds are in the process of increasing to 20 to 30 kt, with seas building to 8 ft later today. Winds will further increase to gale force overnight tonight into early Mon, with seas building to 12 or 13 ft on Mon night into early Tue. Gusty winds to near storm force may occur. These marine conditions are forecast to persist through early Tue morning. Seas generated from this gap wind event will spread well away from the Tehuantepec area, with seas 8 ft or greater reaching as far south as 11N Mon night into Tue. Please read the latest High Seas Forecast issued by the National Hurricane Center at website: https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 07N78W to 06N95W. The ITCZ stretches from 06N95W to 06N120W to beyond 03N140W. A second ITCZ is located south of the Equator and runs from 03.4S117W to beyond 03.4S120W. Scattered moderate isolated strong convection is present from 05N to 08N between 80W and 84W, and within 90 nm either side of the ITCZ between 120W and 140W. Similar convection is within 150 nm of the coast of Colombia S of 06N. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please refer to the Special Features section for details on a developing Gulf of Tehuantepec Gale Warning. Otherwise, gentle to moderate winds are found N of 22N, including offshore Baja California and in the Gulf of California, with high pressure ridging W of the peninsula and troughing over NW Mexico. Light to gentle winds are found elsewhere away from the Gulf of Tehuantepec. Seas are 6-7 ft W of 110W in mixed S and NW swell, and 6 ft elsewhere in mainly S swell from the entrance of the Gulf of California S-SE to offshore SW and southern Mexico. Seas are 2-4 ft in the remainder of the Gulf of California. For the forecast, other than the developing Gale Warning in the Gulf of Tehuantepec, NW swell off Baja California will subside through tonight. Gentle to moderate winds and slight seas will prevail in the Gulf of California through much of the week, pulsing to moderate to fresh in the central portion early week. Moderate to locally fresh NW winds and moderate seas are expected off Baja California through the forecast period. However, winds may increase to strong N of Punta Eugenia Thu night. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... High pressure north of the Caribbean is supporting fresh to locally strong easterly trade winds across the Gulf of Papagayo region. Seas in these waters are 5-7 ft. Farther east, moderate to locally fresh northerly winds and moderate seas are present in the Gulf of Panama. Meanwhile, light to gentle winds and moderate seas dominate the remainder of the offshore forecast waters. Some active convection is present offshore Colombia and from near the Azuero Peninsula SSW as described above. For the forecast, fresh to strong gap winds are expected during the nighttime and early morning hours in the Papagayo region and downwind to about 89W through the forecast period. Moderate to locally fresh northerly winds are forecast in the Gulf of Panama through much of the week. A gap wind event in the Tehuantepec region will produce seas to 8 ft in the far offshore waters of Guatemala Mon night through Tue. Light to gentle winds and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... A deep upper level trough and a weak surface trough combine to produce abundant cloudiness and some showers over the western waters, especially N of 17N and W of 120W. At the surface, a 1020 mb high pressure near 30N130W, wedged between two low pressure systems, dominates the remainder of the tropical eastern Pacific. Moderate to fresh easterly winds N of the ITCZ and W of 110W. Seas in these waters remain around 6 to 8 ft. Elsewhere, moderate or lighter winds and moderate seas are prevalent. For the forecast, ridging will support moderate to locally fresh easterly winds and moderate to locally rough seas across the trade wind zone into the middle of the week, supporting seas to around 8 ft. A cold front is forecast to reach 30N140W tonight, and extend from 30N137W to 24N140W by Mon morning. Gentle to moderate winds are forecast on either side of the front. Seas will briefly build to 9 ft behind the front Mon night into Tue. Seas may build to around 8 ft in southerly swell near 03.4S by the end of the week. $$ Lewitsky ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC052034_C_KWBC_20260405203537_9109880-627-TWDEP.txt ****0000005400**** AXPZ20 KNHC 052034 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Sun Apr 5 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 2000 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: Building ridge across the eastern slopes of the Sierra Madre Mountains in Mexico will force the next gap wind event in the Gulf of Tehuantepec. Winds are in the process of increasing to 20 to 30 kt, with seas building to 8 ft later this evening. Winds will further increase to gale force overnight tonight into early Mon, with seas building to 12 to 14 ft on Mon night into early Tue. Gusty winds to near storm force may occur. These marine conditions are forecast to persist through early Tue morning. Seas generated from this gap wind event will spread well away from the Tehuantepec area, with seas 8 ft or greater reaching as far south as 11N Mon night into Tue. Please read the latest High Seas Forecast issued by the National Hurricane Center at website: https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 07N78W to 05N95W. The ITCZ stretches from 05N95W to 07N120W to beyond 03N140W. A second ITCZ is located south of the Equator and runs from 03.4S118W to beyond 03.4S120W. Scattered moderate convection is present from 01N to 08N between 77W and 84W, and within 240 nm either side of ITCZ between 114W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please refer to the Special Features section for details on a developing Gulf of Tehuantepec Gale Warning. Fresh NW-N winds are in the Gulf of Tehuantepec. Gentle to moderate winds are found N of 22N, including offshore Baja California and in the Gulf of California, with high pressure ridging W of the peninsula and troughing over NW Mexico. Light to gentle winds are found elsewhere away from the Gulf of Tehuantepec. Seas are 6-7 ft W of 110W primarily in NW swell, and mainly 6 ft elsewhere in mainly S swell from the entrance of the Gulf of California S-SE to offshore SW and southern Mexico. Seas are 2-4 ft in the remainder of the Gulf of California. For the forecast, other than the developing Gale Warning in the Gulf of Tehuantepec, NW swell off Baja California will subside through tonight. Gentle to moderate winds and slight seas will prevail in the Gulf of California through much of the week, pulsing to moderate to fresh in the central portion early week. Moderate to locally fresh NW winds and moderate seas are expected off Baja California through the forecast period. However, winds may increase to strong N of Punta Eugenia Thu night through Fri night. Looking ahead, fresh to strong N winds may return to the Gulf of Tehuantepec by early Fri. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... High pressure north of the Caribbean is supporting fresh easterly trade winds across the Gulf of Papagayo region. Seas in these waters are 5-7 ft. Farther east, moderate N-NE winds and moderate seas are present near the Azuero Peninsula. Meanwhile, light to gentle winds and moderate seas dominate the remainder of the offshore forecast waters. Some active convection is present offshore Colombia and Panama as described above. For the forecast, fresh to strong gap winds are expected during the nighttime and early morning hours in the Papagayo region and downwind to about 90W through the forecast period. Moderate to locally fresh northerly winds are forecast in the Gulf of Panama through much of the week. A gap wind event in the Tehuantepec region will produce seas to 8 ft in the far offshore waters of Guatemala Mon night through Tue. Light to gentle winds and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... A deep upper level trough and a weak surface trough combine to produce abundant cloudiness and some showers over the western waters, especially N of 19N and W of 120W. At the surface, a 1021 mb high pressure near 31N129W, wedged between two low pressure systems, dominates the remainder of the tropical eastern Pacific. Moderate to fresh easterly winds from 07N to 14N and W of 110W. Seas in these waters remain around 6 to 8 ft. Elsewhere, moderate or lighter winds and moderate seas are prevalent. For the forecast, ridging will support moderate to locally fresh easterly winds and moderate to locally rough seas across the trade wind zone into the middle of the week, supporting seas to around 8 ft. A cold front is forecast to reach 30N140W tonight, and extend from 30N137W to 24N140W by Mon morning. Gentle to moderate winds are forecast on either side of the front. Seas will briefly build to 9 ft behind the front Mon night into Tue. Seas may build to around 8 ft in southerly swell near 03.4S by the end of the week. $$ Lewitsky ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC052102_C_KWBC_20260405210305_38666572-578-TWDEP.txt ****0000005400**** AXPZ20 KNHC 052102 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Sun Apr 5 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 2000 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: Building ridge across the eastern slopes of the Sierra Madre Mountains in Mexico will force the next gap wind event in the Gulf of Tehuantepec. Winds are in the process of increasing to 20 to 30 kt, with seas building to 8 ft later this evening. Winds will further increase to gale force overnight tonight into early Mon, with seas building to 12 to 14 ft on Mon night into early Tue. Gusty winds to near storm force may occur. These marine conditions are forecast to persist through early Tue morning. Seas generated from this gap wind event will spread well away from the Tehuantepec area, with seas 8 ft or greater reaching as far south as 11N Mon night into Tue. Please read the latest High Seas Forecast issued by the National Hurricane Center at website: https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 07N78W to 05N95W. The ITCZ stretches from 05N95W to 07N120W to beyond 03N140W. A second ITCZ is located south of the Equator and runs from 03.4S118W to beyond 03.4S120W. Scattered moderate convection is present from 01N to 08N between 77W and 84W, and within 240 nm either side of ITCZ between 114W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please refer to the Special Features section for details on a developing Gulf of Tehuantepec Gale Warning. Fresh NW-N winds are in the Gulf of Tehuantepec. Gentle to moderate winds are found N of 22N, including offshore Baja California and in the Gulf of California, with high pressure ridging W of the peninsula and troughing over NW Mexico. Light to gentle winds are found elsewhere away from the Gulf of Tehuantepec. Seas are 6-7 ft W of 110W primarily in NW swell, and mainly 6 ft elsewhere in mainly S swell from the entrance of the Gulf of California S-SE to offshore SW and southern Mexico. Seas are 2-4 ft in the remainder of the Gulf of California. For the forecast, other than the developing Gale Warning in the Gulf of Tehuantepec, NW swell off Baja California will subside through tonight. Gentle to moderate winds and slight seas will prevail in the Gulf of California through much of the week, pulsing to moderate to fresh in the central portion early week. Moderate to locally fresh NW winds and moderate seas are expected off Baja California through the forecast period. However, winds may increase to strong N of Punta Eugenia Thu night through Fri night. Looking ahead, fresh to strong N winds may return to the Gulf of Tehuantepec by early Fri. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... High pressure north of the Caribbean is supporting fresh easterly trade winds across the Gulf of Papagayo region. Seas in these waters are 5-7 ft. Farther east, moderate N-NE winds and moderate seas are present near the Azuero Peninsula. Meanwhile, light to gentle winds and moderate seas dominate the remainder of the offshore forecast waters. Some active convection is present offshore Colombia and Panama as described above. For the forecast, fresh to strong gap winds are expected during the nighttime and early morning hours in the Papagayo region and downwind to about 90W through the forecast period. Moderate to locally fresh northerly winds are forecast in the Gulf of Panama through much of the week. A gap wind event in the Tehuantepec region will produce seas to 8 ft in the far offshore waters of Guatemala Mon night through Tue. Light to gentle winds and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... A deep upper level trough and a weak surface trough combine to produce abundant cloudiness and some showers over the western waters, especially N of 19N and W of 120W. At the surface, a 1021 mb high pressure near 31N129W, wedged between two low pressure systems, dominates the remainder of the tropical eastern Pacific. Moderate to fresh easterly winds from 07N to 14N and W of 110W. Seas in these waters remain around 6 to 8 ft. Elsewhere, moderate or lighter winds and moderate seas are prevalent. For the forecast, ridging will support moderate to locally fresh easterly winds and moderate to locally rough seas across the trade wind zone into the middle of the week, supporting seas to around 8 ft. A cold front is forecast to reach 30N140W tonight, and extend from 30N137W to 24N140W by Mon morning. Gentle to moderate winds are forecast on either side of the front. Seas will briefly build to 9 ft behind the front Mon night into Tue. Seas may build to around 8 ft in southerly swell near 03.4S by the end of the week. $$ Lewitsky ########################### END OF MESSAGE SET ############################