--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2026-04-22 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC220405_C_KWBC_20260422040638_47448518-1672-TWDEP.txt ****0000004807**** AXPZ20 KNHC 220405 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Wed Apr 22 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 0340 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A trough axis extends from near 08N78W to 08N83W to 05N90W to 05N100W. The ITCZ stretches from 05N101W to 02N123W and beyond 05N140W. Scattered moderate convection is observed from 00N to 07N between 84W and 94W, and from 02S to 08N between 110W and 132W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A weak cold front started to move across the Baja California Norte tonight while a broad surface ridge prevails. The broad ridge is yielding moderate to locally fresh NW to N winds across the Baja waters. In the northern Gulf of California, moderate to fresh SW winds are ahead of the front. Seas across the Baja offshores are 4-7 ft in S swell south of Punta Eugenia and NW swell N of 27N. In the Gulf of Tehuantepec, winds are moderate to fresh and seas to 6 ft. Elsewhere, winds are moderate or weaker and seas 4-7 ft in S swell. For the forecast, high pressure extending across the Gulf of America will begin to weaken tonight through Wed as the high shifts northeastward, leading to a significant decrease in gap winds across the Gulf of Tehuantepec tonight through Wed. Elsewhere, a weak cold front moving across Baja California Norte will move southeastward through tonight then dissipate Wed morning. New high pressure behind this front will build across the Baja waters Wed and Thu, and act to increase winds modestly through early Fri before weakening into Fri night. New NW swell generated behind the front will move into the Baja California Norte waters tonight and spread southeastward to the Revillagigedo Islands through Wed night. Seas are expected to peak to around 8 ft across north and central portions of the Baja waters with this swell. Elsewhere, mostly light to gentle west to northwest winds are expected through the end of the week and into the upcoming weekend. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Modest high pressure north of the western Caribbean Sea is forcing fresh NE to E gap winds and moderate seas across the Papagayo region, extending downstream to 87W. Seas there are 5 to 6 ft. Farther east, moderate N to NE winds are occurring in the Gulf of Panama. Seas in these waters are 5 to 6 ft in SW swell. Elsewhere, light to gentle variable winds prevail. For the forecast, gap winds will pulse moderate to fresh speeds across the Papagayo region tonight into Wed morning, then become light variable through the weekend. Similarly, winds will pulse to moderate in the Gulf of Panama tonight into Wed morning before also becoming light to gentle the rest of the week. Otherwise, rather tranquil conditions are expected to continue over the Central American and the equatorial waters through the end of the week. The next significant SW swell is forecast to approach the area waters over the upcoming weekend. ...REMAINDER OF THE AREA... A weakening cold front continues to slide southeastward across the northern waters, extending from 30N118W to 25N124W, then becomes stationary and stretches to 21N140W. No significant convection is seen near this boundary. Large NW swell follows the front, supporting seas of 8-9 ft. High pressure well NW of the front extends weakly into the area and is producing light to gentle anticyclonic winds behind the front N of 20N. Weak high pressure SE of the front dominates the remainder of the basin, supporting moderate to locally fresh easterly trade winds between 110W and 140W. Moderate seas to 7 ft in S swell, prevail between the front and the ITCZ. Elsewhere, moderate or lighter winds and moderate seas are prevalent. For the forecast, the aforementioned frontal boundary will move east-southeastward, further weakening tonight and dissipating as it moves into the central Baja waters on Wed. The NW swell behind the front will spread southeastward over the next few days, reaching the trade wind zone Wed evening, and leading to rough seas around 8 ft there Wed night through Thu night. Little overall changes are expected with winds and seas elsewhere through Thu. $$ Ramos ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC220917_C_KWBC_20260422091840_47448518-1687-TWDEP.txt ****0000004508**** AXPZ20 KNHC 220917 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Wed Apr 22 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 0910 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A trough axis extends from near 08N78W to 05N100W to 04N113W. The ITCZ stretches from 04N113W to 01N130W and beyond 02N140W. Scattered moderate convection is observed from 03S to 07N E of 100W, and from 00N to 11N between 111W and 131W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A weak cold front continues to move across Baja California Norte this morning while a broad surface ridge prevails across the remainder Baja offshores. Recent scatterometer data confirm moderate to fresh NW winds ahead of the front from Sebastian Vizcaino Bay to Punta Abreojos where altimeter data show seas in the 4 to 6 ft range. In the northern Gulf of California, moderate to fresh NE winds are behind of the front. In the Gulf of Tehuantepec, winds are moderate to fresh and seas to 5-6 ft. Elsewhere, winds are light to gentle and seas 4-6 ft in S swell, except to 3 ft in the Gulf of California. For the forecast, high pressure in the Gulf of America will continue to weaken today as it shifts northeastward, leading to a significant decrease in gap winds across the Gulf of Tehuantepec. The weak cold front will continue to move southeastward and dissipate later today. New high pressure behind this front will build across the Baja waters today and Thu, and act to increase winds modestly through early Fri before weakening into Fri night. NW swell generated behind the front will continue to move across the Baja California Norte waters and spread southeastward to the Revillagigedo Islands through Thu. Seas are expected to peak to around 8 ft across north and central portions of the Baja waters with this swell. Elsewhere, mostly light to gentle west to northwest winds are expected through the weekend. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Modest high pressure north of the western Caribbean Sea is forcing fresh NE to E gap winds and moderate seas to 6 ft across the Papagayo region, extending downstream to 88W. Elsewhere, light to gentle variable winds prevail along with moderate seas in SW swell. For the forecast, gap winds will pulse moderate to fresh speeds across the Papagayo region through this morning, then become light variable through the weekend. Otherwise, rather tranquil conditions are expected to continue over the Central American and the equatorial waters through the end of the week. The next significant SW swell is forecast to approach the Galapagos SW waters Sat night. ...REMAINDER OF THE AREA... A weakening cold front continues to slide southeastward across the NE waters, extending from 30N116W to 25N123W, then becomes dissipating stationary, stretching to 21N139W. No significant convection is seen near this boundary. Large NW swell follows the front, supporting seas of 8-10 ft per recent altimeter data. High pressure well NW of the front extends weakly into the area and is producing light to gentle anticyclonic winds behind the front N of 20N. Weak high pressure SE of the front dominates the remainder of the basin, supporting moderate to locally fresh easterly trade winds from 07N to 20N between 120W and 140W as shown by recent scatterometer data. Moderate seas to 7 ft in S swell, prevail between the front and the ITCZ. Elsewhere, moderate or lighter winds and moderate seas are prevalent. For the forecast, the aforementioned frontal boundary will move east-southeastward, and dissipate as it moves into the central Baja waters later today. The NW swell behind the front will spread southeastward over the next few days, reaching the trade wind zone by this evening, and leading to rough seas around 8 ft there tonight through Thu night. Little overall changes are expected with winds and seas elsewhere through Sun. $$ Ramos ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC221532_C_KWBC_20260422153242_47448518-1701-TWDEP.txt ****0000005449**** AXPZ20 KNHC 221532 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Wed Apr 22 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 1520 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A trough axis extends from near 10N74W to 02N81W to 06N100W to 04N114W. The ITCZ stretches from 04N114W to beyond 01N140W. Scattered moderate convection is observed from 01.5N to 06.5N E of 80.5W, from 03.4S to 04N between 86W and 94W, S of 00N between 95W and 108W, and from 00N to 08.5N between 98W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A weak cold front continues to move across Baja California Norte and adjacent waters this morning, while a broad and weak surface ridge prevails across the remainder Baja offshores to the southeast of the front. Overnight satellite scatterometer data confirmed moderate to fresh NW winds ahead of the front from Sebastian Vizcaino Bay to Punta Abreojos where altimeter data show seas in the 4 to 7 ft range in mixed S and new NW swell. Recent satellite altimeter data shows seas of 8 to 9 ft in this area of fresh NW winds just offshore of Sebastian Vizcaino Bay. In the northern Gulf of California, moderate to fresh NW to N winds are beginning to fill in across the Gulf behind of the front. In the Gulf of Tehuantepec, N gap winds are moderate to fresh and seas to 5-6 ft. Elsewhere, winds are light to gentle and seas 5-6 ft in S swell, except to 3 ft in the Gulf of California. Scattered moderate convection is occurring over portions of western Oaxaca and eastern Guerrero and the adjacent waters. For the forecast, high pressure in the Gulf of America will continue to weaken today as it shifts northeastward, leading to a significant decrease in gap winds across the Gulf of Tehuantepec. The weak cold front will continue to move southeastward and dissipate across central Baja later today. New high pressure behind this front will build across the Baja waters today through Thu, and act to increase winds modestly through early Fri before weakening into Fri night. NW swell generated behind the front will continue to move across the Baja California Norte waters and spread southeastward to the Revillagigedo Islands through Thu. Seas are expected to peak to at 8-9 ft across north and central portions of the Baja waters with this swell. Elsewhere, mostly light to gentle west to northwest winds are expected through the weekend. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Modest high pressure north of the western Caribbean Sea is forcing fresh NE to E gap winds and moderate seas to 6 ft across the Papagayo region, extending downstream to 88W. Elsewhere, light to gentle variable winds prevail. Moderate seas in SW swell is slowly subsiding across the area waters this morning. A narrow middle to upper-level trough extending from the western Caribbean W-SW across central America is supporting scattered moderate isolated strong convection across the waters N of 10N to the coasts of El Salvador and Guatemala, with scattered weakening convection across the nearshore waters of Costa Rica. For the forecast, gap winds will pulse moderate to fresh speeds across the Papagayo region through this morning, then become light variable through the weekend. Otherwise, rather tranquil conditions are expected to continue over the Central American and the equatorial waters through the end of the week. The next significant SW swell is forecast to approach the Galapagos SW waters Sat night. ...REMAINDER OF THE AREA... A weakening cold front continues to slide southeastward across the NE waters, extending from the northern Gulf of California across Baja Norte to near 25N121W, then becomes stationary, stretching to 21N139W. No significant convection is seen near this boundary. Large NW swell follows the front, supporting seas of 8-11 ft per recent altimeter data. High pressure well NW of the front extends weakly into the area and is producing light to gentle anticyclonic winds behind the front N of 20N. Weak high pressure SE of the front dominates the remainder of the basin, supporting moderate to locally fresh easterly trade winds from 07N to 20N between 120W and 140W as shown by overnight scatterometer data. Moderate seas 5 to 7 ft in S swell, prevail between the front and the ITCZ. Elsewhere, moderate or lighter winds and moderate seas are prevalent. For the forecast, the aforementioned frontal boundary will move east-southeastward, and dissipate as it moves into the central Baja waters later today. The NW swell behind the front will spread southeastward over the next few days, reaching the trade wind zone by this evening, and leading to rough seas around 8 ft there tonight through Thu night. Little overall changes are expected with winds and seas elsewhere through Sun. $$ Stripling ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC222026_C_KWBC_20260422202644_49676782-1747-TWDEP.txt ****0000005018**** AXPZ20 KNHC 222026 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Wed Apr 22 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. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A trough axis extends from near 10N75W to 03N81W to 07.5N93W to 06.5N109W. The ITCZ stretches from 07N110W to 08N121W to beyond 03N140W. Scattered moderate convection is observed from 02N to 07N E of 80.5W and from 05N to 08N between 133W and 140W. Scattered moderate isolated strong convection is noted from 03.4S to 03.5N between 86W and 105W, and from 00N to 10N between 89W and 129W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A weak cold front has dissipated across the Tiburon Basin of the Gulf of California and central Baja California southeast of Punta Eugenia this afternoon. A broad and weak surface ridge prevails across the remainder Baja offshores to the southeast of the front to Cabo Corrientes. Recent satellite scatterometer data showed moderate to fresh NW winds across the Baja waters behind the front, and in the far northern Gulf of California. Seas across these offshore waters are 7 to 9 ft in NW swell. Ahead of the front, moderate NW to N winds prevail, with seas in the 5 to 7 ft range in mixed S and new NW swell. Across the Gulf of Tehuantepec, N gap winds have begun to turn off near the coast, but with moderate N winds still extending offshore, where seas remain 5 to 6 ft. Elsewhere, winds are light to gentle and seas 5-6 ft in S swell. Scattered moderate convection is occurring well offshore of western Oaxaca and Guerrero. For the forecast, new high pressure well NW of the area will build across the Baja waters through Thu, and act to increase winds modestly through early Fri before weakening Fri night through Sat. NW swell will continue to move across the Baja California waters and spread southeastward to the Revillagigedo Islands through Thu. Seas are expected to peak at 8-9 ft across the Baja waters this evening through Thu morning with this swell. Elsewhere, mostly light to gentle west to northwest winds are expected through the weekend. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Modest high pressure north of the western Caribbean Sea is forcing moderate to fresh NE to E gap winds and moderate seas to 7 ft across the Papagayo region, extending downstream to 90W. A narrow middle to upper-level trough extending from the western Caribbean W-SW across central America is supporting scattered moderate to strong convection across the waters N of 10N to the coasts of far western El Salvador and Guatemala, and shifting westward with the low level winds from Papagayo. Elsewhere, light to gentle variable winds prevail. Moderate seas in SW swell are slowly subsiding across the area waters this morning. For the forecast, gap winds will remain moderate across the Papagayo region through Thu morning, then become light variable through the weekend as southerly winds develop across the NW Caribbean. Otherwise, rather tranquil conditions are expected to continue over the Central American and the equatorial waters through the end of the week. The next significant SW swell is forecast to approach the Galapagos waters Sat night. ...REMAINDER OF THE AREA... A weak cold front has dissipated this afternoon across central Baja California to near 22N130W. Moderate N winds were shown directly behind the front and E of 120W recently in satellite scatterometer data. Large NW swell follows the front, supporting seas of 8-10 ft per recent altimeter data. High pressure well NW of the front extends weakly into the area and is producing light to gentle anticyclonic winds behind the front N of 20N. S of 20N, the developing ridge is supporting moderate to locally fresh easterly trade winds to the ITCZ between 120W and 140W. Moderate seas 5 to 7 ft in S swell, prevail across these waters. Elsewhere, moderate or lighter winds and moderate seas are prevalent. For the forecast, modest high pressure N of the area will build weakly across the region over the next few days to maintain moderate to fresh trade winds S of 20N to the ITCZ and W of 120W. NW swell will spread southeastward over the next few days, reaching the trade wind zone by this evening, and leading to rough seas around 8 ft there tonight through Thu night. Little overall changes are expected with winds and seas elsewhere through Sun. $$ Stripling ########################### END OF MESSAGE SET ############################