--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2026-04-03 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC030413_C_KWBC_20260403041423_38666572-389-TWDEP.txt ****0000004028**** AXPZ20 KNHC 030413 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Fri Apr 3 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 0330 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends west-southwestward from 08N78W to 05N92W. An ITCZ extends from 05N92W to 03N110W to 03N135W. Scattered moderate to isolated strong convection is noted from 04N to 09N between 82W and 91W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... The pressure gradient between high pressure west of the area and a trough over the Gulf of California is supporting moderate to fresh NW to winds west of Baja California, with moderate winds extending southward to near the Revillagigedo Islands and off Cabo Corrientes. Gentle to moderate S to WSW winds exist in the Gulf of California. Light to gentle winds are seen across the offshore waters of southern Mexico. Moderate seas prevail across the open waters off Mexico, with slight seas over the Gulf of California. For the forecast, fresh to locally strong NW winds offshore Baja California will become gentle to moderate this weekend, then increase to between moderate and fresh by Mon. NW swell will also bring locally rough seas off Baja California Norte Fri through Sat evening. Fresh NW to N winds will pulse in the northern Gulf of California Fri through Sat morning. In the long term, strong to near gale- force N gap winds along with rough seas are expected in the Gulf of Tehuantepec Sun night through midweek next week. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to fresh NE to E gap winds prevail over and downstream the Papagayo region. Winds are light to gentle elsewhere. Slight seas are offshore Colombia, with moderate seas prevailing for the rest of the offshore waters. For the forecast, fresh with locally strong gap winds are expected during the nighttime and early morning hours in the Papagayo region through midweek next week. Residual southerly swell will maintain moderate seas off Ecuador and near the Galapagos Islands through this weekend. Afterward, seas should gradually subside next week. ...REMAINDER OF THE AREA... A surface ridge extends southeastward from a 1027 mb high west of California across 30N129W to near the Revillagigedo Islands. A trough of Low pressure cuts across the northwestern corner of the discussion area from 30N134W to 25N140W. Fresh to locally strong winds are found near the trough of low pressure. The pressure gradient between the surface ridge and lower pressure in the vicinity of the ITCZ is supporting gentle to moderate winds elsewhere north of the ITCZ. Light to gentle winds prevail south of the ITCZ. Moderate to rough seas in cross equatorial swell prevail south of 10N and west of 94W. For the forecast, the pressure gradient between the aforementioned ridge and low pressure will support fresh to locally strong NE-E winds N of 25.5N and W of 133W and locally rough seas tonight. These conditions will then drift north through Fri before shifting north of the area. Large southerly swell will gradually subside. The pressure gradient will likely tighten north of the ITCZ to 20N and west of 110W by the end of the week through the weekend, increasing trades to moderate to locally fresh, with seas building locally to rough as a result. Northerly swell will likely build seas to rough just south of 30N in the north-central waters by early Fri into the weekend. $$ Chan ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC031001_C_KWBC_20260403100246_9109880-465-TWDEP.txt ****0000003991**** AXPZ20 KNHC 031001 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Fri Apr 3 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 0900 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends southwestward from 08N83W to 04N93W. An ITCZ extends westward from 04N93W to 02N115W to 03N137W. A second ITCZ reaches west-southwestward from 01S86W to 04S105W to beyond 03S120W. Scattered moderate to isolated strong convection is noted from 04N to 09N between 83W and 90W, and within 55 nm of 05S89W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... The pressure gradient between high pressure west of the area and a trough over the Gulf of California is supporting moderate to fresh NW to winds west of Baja California, with moderate winds extending southward to near the Revillagigedo Islands and off Cabo Corrientes. Gentle to moderate S to WSW winds exist in the Gulf of California. Light to gentle winds are seen across the offshore waters of southern Mexico. Moderate seas prevail across the open waters off Mexico, with slight seas over the Gulf of California. For the forecast, fresh to locally strong NW winds offshore Baja California will become gentle to moderate this weekend, then increase to between moderate and fresh by Mon. NW swell will also bring locally rough seas off Baja California Norte through Sat evening. Fresh NW to N winds will pulse in the northern Gulf of California today through Sat morning. In the long term, strong to near gale-force N gap winds along with rough seas are expected in the Gulf of Tehuantepec Sun night through midweek next week. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to fresh NE to E gap winds prevail over and downstream the Papagayo region. Winds are light to gentle elsewhere. Slight seas are offshore Colombia, with moderate seas prevailing for the rest of the offshore waters. For the forecast, fresh with locally strong gap winds are expected during the nighttime and early morning hours in the Papagayo region through midweek next week. Residual southerly swell will maintain moderate seas off Ecuador and near the Galapagos Islands through this weekend. Afterward, seas should gradually subside next week. ...REMAINDER OF THE AREA... A surface ridge extends southeastward from a 1028 mb high west of California across 30N127W to near the Revillagigedo Islands. A trough of Low pressure cuts across the northwestern corner of the discussion area from 30N135W to 25N140W. Fresh to locally strong winds are found near the trough of low pressure. The pressure gradient between the surface ridge and lower pressure in the vicinity of the ITCZ is supporting gentle to moderate winds elsewhere north of the ITCZ. Light to gentle winds prevail south of the ITCZ. Moderate to rough seas in cross equatorial swell prevail south of 10N and west of 94W. For the forecast, the pressure gradient between the aforementioned ridge and low pressure will support fresh with locally strong E to SE winds N of 20N and W of 127W today, then become gentle to moderate by tonight. Lingering NW swell should maintain rough seas north of 28N through Sat, then become moderate. Moderate ENE to E winds with moderate seas in persistent S swell should continue from the ITCZ to 20N through Tue. A new set of NW swell associated with a cold front is going to bring back rough seas near 29N138W for Tue. $$ Chan ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC031537_C_KWBC_20260403153851_9109880-481-TWDEP.txt ****0000004001**** AXPZ20 KNHC 031537 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Fri Apr 3 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 extends southwestward from 09N84W to 06N96W. The ITCZ continues from 06N96W to 05N110W to 04N133W. A second ITCZ is mainly south of the Equator and runs from 00N85W to 04S105W to beyond 03S120W. Convection is limited at this time. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A ridge dominates the offshore forecast waters of Baja California supporting fresh to locally strong NW winds N of Punta Eugenia, wind moderate to fresh NW winds extending southward to Cabo San Lucas. Light to gentle winds are noted across the Gulf of California, and also across the remainder of the Mexican offshore waters, including the Gulf of Tehuantepec. Moderate seas, in S swell, prevail across the open waters off Mexico, with slight seas over the Gulf of California. For the forecast, fresh to locally strong NW winds offshore Baja California will become gentle to moderate this weekend, then increase to between moderate and fresh by Mon. NW swell will also bring locally rough seas off Baja California Norte through Sat morning. Fresh NW to N winds will pulse in the northern Gulf of California this afternoon through Sat morning. In the long term, strong to near gale-force N gap winds along with rough seas are expected in the Gulf of Tehuantepec Sun night through midweek next week. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to fresh NE to E gap winds prevail over and downstream the Papagayo region. Winds are light to gentle elsewhere. Slight seas are offshore Colombia, with moderate seas in S swell prevailing for the rest of the offshore waters. For the forecast, fresh to locally strong gap winds are expected during the nighttime and early morning hours in the Papagayo region through midweek next week. Residual southerly swell will maintain moderate seas off Ecuador and near the Galapagos Islands through this weekend. Afterward, seas should gradually subside next week. ...REMAINDER OF THE AREA... A surface ridge extends southeastward from a 1028 mb high pressure located west of California near 39N133W across the northern forecast waters to near the Revillagigedo Islands. Farther south, a surface trough is analyzed and extends from 13N136W to 03N135W. Scattered showers and isolated thunderstorms is noted where the trough meets the ITCZ. The pressure gradient between the surface ridge and lower pressure in the vicinity of the ITCZ is supporting gentle to moderate winds elsewhere north of the ITCZ. Light to gentle winds prevail south of the ITCZ. Moderate to rough seas in cross equatorial swell prevail south of 10N and west of 120W, except in the lee of the Galapagos Islands. Several altimeter passes confirmed the presence of these sea heights. For the forecast, the pressure gradient around the southern periphery of the ridge and a trough over the NW corner of the forecast region will support moderate to fresh easterly winds and moderate to locally rough seas N of 27N W of 130W today, then become gentle to moderate by late tonight. Moderate NE to E winds with moderate seas in persistent S swell should continue from the ITCZ to 20N through Tue. A new set of NW swell, associated with a cold front, is going to bring back rough seas near 30N140W by Tue. $$ GR ########################### END OF MESSAGE SET ############################