--------------------------------------------------------------------------- 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 ############################