--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2026-03-19 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC190132_C_KWBC_20260319013239_16515500-9688-TWDEP.txt ****0000003775**** AXPZ20 KNHC 190132 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Wed Mar 18 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 0130 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: the pressure gradient between high pressure across eastern Mexico and the equatorial trough is supporting strong to near gale-force N-NE winds in the Gulf of Tehuantepec. Seas are 8-10 ft across this region including well downstream to near 09.5N100.5W. Winds are forecast to increase to minimal gale-force speeds overnight and then continue through the remainder of the weekend into early Sat before diminishing. Winds may briefly lower to just below gale-force Fri afternoon. Seas will peak at 14-15 ft during this event. Please read the latest HIGH SEAS FORECAST issued by the National Hurricane Center at website - https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more information. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 08N78W to 04N90W. The ITCZ extends from 04N90W to 01N105W to beyond 00N140W. Scattered moderate convection is noted from 00N to 04N between 99W and 108W, and from 04N to 09N between 121W and 128W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see Special Features above for more on a gale warning in the Gulf of Tehuantepec. Aside from the Gulf of Tehuantepec, a weak pressure gradient is generating light to gentle winds. Moderate seas prevail over the open waters, with slight seas in the Gulf of California. For the forecast aside from the Gulf of Tehuantepec gale warning, a weak pressure gradient will support light to gentle winds, increasing to moderate near Baja California by the end of the week, then to moderate to fresh this weekend as the pressure gradient tightens slightly. Moderate seas will prevail over the open waters, with slight seas in the Gulf of California. Seas may build in fresh N swells off Baja California Norte late in the weekend into early next week. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Seas of 7-9 ft are offshore western Guatemala due to an ongoing Gulf of Tehuantepec gap wind event. Light to gentle winds and moderate seas in the 3-6 ft range prevail across the remainder of the discussion waters. For the forecast, large NW swell generated by the gale-force gap winds in the Gulf of Tehuantepec will impact the offshore waters of Guatemala on Fri. Fresh to locally strong winds will pulse nightly in the Gulf of Papagayo starting Thu night. Moderate winds will pulse in the Gulf of Panama starting Thu night, then pulse to moderate to fresh this weekend. Gentle breezes and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... A weak pressure gradient across the area is supporting mostly gentle to moderate winds across the open waters. Moderate wave heights in the 4-6 ft range prevail. For the forecast, moderate or weaker winds and moderate seas will prevail across the region into the weekend. Fresh N swell may build S of 30N from off California by the end of the weekend. A front may move just SE of 30N140W by Tue evening, stalling over the NW waters with fresh to strong winds and building seas W of it. $$ AL ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC190733_C_KWBC_20260319073438_29294990-107-TWDEP.txt ****0000003358**** AXPZ20 KNHC 190733 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Thu Mar 19 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 0730 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: the pressure gradient between high pressure across eastern Mexico and the equatorial trough is supporting gale-force N-NE winds in the Gulf of Tehuantepec. Seas are 8-10 ft across this region. The gale force winds are forecast to continue through the remainder of the week into early Sat before diminishing. Winds may briefly lower to just below gale- force Fri afternoon. Seas will peak at 14-15 ft during this event. Please read the latest HIGH SEAS FORECAST issued by the National Hurricane Center at website - https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more information. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 08N78W to 04N90W. The ITCZ extends from 04N90W to 01N106W to beyond 00N140W. Scattered moderate convection is noted from 05N to 10N between 120W and 128W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see Special Features above for more on a gale warning in the Gulf of Tehuantepec. Aside from the Gulf of Tehuantepec, a weak pressure gradient is generating light to gentle winds. Moderate seas prevail over the open waters, with slight seas in the Gulf of California. For the forecast aside from the Gulf of Tehuantepec gale warning, a weak pressure gradient will support light to gentle winds, increasing to moderate near Baja California by the end of the week, then to moderate to fresh this weekend as the pressure gradient tightens slightly. Moderate seas will prevail over the open waters, with slight seas in the Gulf of California. Seas may build in fresh N swells off Baja California Norte late in the weekend into early next week. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Light to gentle winds and moderate seas in the 3-6 ft range prevail across the discussion waters. For the forecast, large NW swell generated by the gale-force gap winds in the Gulf of Tehuantepec will impact the offshore waters of Guatemala on Fri. Fresh to locally strong winds will pulse nightly in the Gulf of Papagayo starting tonight. Moderate winds will pulse in the Gulf of Panama starting tonight, then pulse to moderate to fresh this weekend. Gentle breezes and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... A weak pressure gradient across the area is supporting mostly gentle to moderate winds across the open waters. Moderate wave heights in the 4-6 ft range prevail. For the forecast, moderate or weaker winds and moderate seas will prevail across the region into the weekend. Fresh N swell may build S of 30N from off California by the end of the weekend. $$ AL ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC191520_C_KWBC_20260319152140_29294990-126-TWDEP.txt ****0000003367**** AXPZ20 KNHC 191520 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Thu Mar 19 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. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: the pressure gradient between high pressure across eastern Mexico and the equatorial trough is supporting gale-force N-NE winds in the Gulf of Tehuantepec. Seas are 8-10 ft across this region. The gale force winds are forecast to continue into early Sat before diminishing. Winds may briefly lower to just below gale- force Fri afternoon. Seas will peak at 13 to 14 ft tonight. Please read the latest HIGH SEAS FORECAST issued by the National Hurricane Center at website - https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more information. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 08N78W to 04N96W. The ITCZ extends from 02N101W to beyond 00N140W. Scattered moderate convection is noted from 04N to 12N between 121W and 129W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see Special Features above for information on a gale warning in the Gulf of Tehuantepec. Aside from the Gulf of Tehuantepec, a weak pressure gradient is generating light to gentle winds. Moderate seas prevail over the open waters, with slight seas in the Gulf of California. For the forecast aside from the Gulf of Tehuantepec gale warning, a weak pressure gradient will support light to gentle winds, increasing to moderate to fresh near Baja California this weekend as the pressure gradient tightens slightly. Moderate seas will prevail over the open waters, with slight seas in the Gulf of California. Seas may build in fresh N swells off Baja California Norte late in the weekend into early next week. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Light to gentle winds and moderate seas in the 3-6 ft range prevail across the discussion waters, except for in the Gulf of Papagayo, where moderate gap winds have developed. For the forecast, large NW swell generated by the gale-force gap winds in the Gulf of Tehuantepec will impact the offshore waters of Guatemala Fri. Fresh to locally strong winds will pulse nightly in the Gulf of Papagayo starting tonight. Moderate winds will pulse in the Gulf of Panama starting tonight, then pulse to moderate to fresh into early next week. Gentle breezes and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... A weak pressure gradient across the area is supporting mostly gentle to moderate winds across the open waters. Moderate wave heights in the 4-6 ft range prevail. For the forecast, moderate or weaker winds and moderate seas will prevail across the region into the weekend. Fresh N swell is likely to build S of 30N from off California by the end of the weekend. $$ Konarik ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC191943_C_KWBC_20260319194345_16515500-9736-TWDEP.txt ****0000003257**** AXPZ20 KNHC 191943 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Thu Mar 19 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 1930 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: the pressure gradient between high pressure across eastern Mexico and the equatorial trough is supporting gale-force N-NE winds in the Gulf of Tehuantepec. Seas are 8-10 ft across this region. The gale force winds are forecast to continue into early Sat before diminishing. Winds may briefly lower to just below gale- force Fri afternoon. Seas will peak at 13 to 14 ft tonight. Please read the latest HIGH SEAS FORECAST issued by the National Hurricane Center at website - https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more information. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 07N78W to 04N98W. The ITCZ extends from 02N102W to 00N140W. Scattered moderate convection is noted from 03N to 10N between 121W and 129W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please see Special Features above for information on a gale warning in the Gulf of Tehuantepec. Aside from the Gulf of Tehuantepec, a weak pressure gradient is generating light to gentle mainly NW winds. Moderate seas prevail over the open waters, with slight seas in the Gulf of California. For the forecast, aside from the Gulf of Tehuantepec gale warning, a weak pressure gradient will support light to gentle winds, increasing to moderate to fresh near Baja California this weekend as the pressure gradient tightens slightly. Moderate seas will prevail over the open waters, with slight seas in the Gulf of California. Seas are likely to build in fresh N swells off Baja California Norte late in the weekend into early next week. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Light to gentle winds and moderate seas in the 3-6 ft range prevail across the discussion waters. For the forecast, large NW swell generated by the gale-force gap winds in the Gulf of Tehuantepec will impact the offshore waters of Guatemala Fri. Fresh to locally strong winds will pulse nightly in the Gulf of Papagayo. Moderate winds will pulse in the Gulf of Panama, with nightly pulses to fresh possible next week. Gentle breezes and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... A weak pressure gradient across the area is supporting mostly gentle to moderate winds across the open waters. Moderate wave heights in the 4-6 ft range prevail. For the forecast, moderate or weaker winds and moderate seas will prevail across the region into the weekend. Fresh N swell will build S of 30N from off California by the end of the weekend. $$ Konarik ########################### END OF MESSAGE SET ############################