--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2026-04-09 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC090317_C_KWBC_20260409031830_9109880-826-TWDEP.txt ****0000004589**** AXPZ20 KNHC 090317 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Thu Apr 9 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 0313 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 09.5N84.5W to 06N97W. The ITCZ continues from 06N97W to 06N120W to 02N140W. A second ITCZ is south of the Equator and runs from 02S121W to 04S140W. A cluster of moderate to isolated strong convection is depicted from 02N to 06N between 122W and 130W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Moderate N winds are noted across the Gulf of Tehuantepec along with seas of 4 to 5 ft. Otherwise, a weak ridge continues to dominate the offshore waters of Baja California supporting moderate to fresh NW to N winds off Baja California north of 23N. Light and variable winds are observed across most of the Gulf of California. Elsewhere across the Mexican offshore waters, light to gentle winds and moderate seas, primarily in southerly swell, prevail. For the forecast, northerly winds will pulse to strong to near gale force Thu night and Fri night over the Gulf of Tehuantepec. During the same period seas will build to around 8 ft. Northerly winds will pulse to fresh to strong through the weekend, with seas 7 to 8 ft. Afterwards, gentle to moderate winds are expected. Moderate to locally fresh NW winds and moderate seas are forecast off Baja California through Mon under the influence of a ridge. By Mon night into Tue, the pressure gradient may tighten enough between the ridge to the W and lower pressures inland Mexico to support moderate to fresh NW winds off the Baja California Peninsula. Fresh to strong SW winds may briefly develop in the northern Gulf of California Fri night ahead of a cold front approaching Baja California Norte, then moderate to fresh SW to W winds are expected through the upcoming weekend. Elsewhere, winds will be moderate or weaker with moderate seas through the next several days. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate gap winds prevail across the Gulf of Papagayo. Seas are 4 to 5 ft with these winds. Farther east, moderate to locally fresh N winds and seas around 3 ft are present in the Gulf of Panama. Light to gentle winds and moderate seas dominate the remainder of the offshore forecast waters. For the forecast, fresh to locally strong gap winds are expected during the nighttime and early morning hours in the Papagayo area and downwind to about 89W through Thu. Toward the upcoming weekend, winds may increase to 30 kt with seas building to 8 or 9 ft in the Papagayo region as a stronger high pressure settles N of the area. Moderate northerly winds, occasionally fresh, are forecast in the Gulf of Panama throughout the forecast period, with stronger conditions most likely during the upcoming weekend. Light to gentle winds and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... A stationary front extends from 30N130W to 27N140W. Gentle NW winds and moderate seas are behind the front. An upper level trough south of the front is supporting scattered showers from 20N to 25N and west of 127W. A 1018 mb high pressure center is east of the front located near 28N124W and extends a ridge across the remainder of the N waters, particularly N of 16N and W of 114W. The pressure gradient between the ridge and lower pressures in the vicinity of the ITCZ supports moderate to locally fresh winds in the trade wind zone, W of 120W. Seas of 5 to 7 ft are within these winds. Elsewhere, moderate or weaker winds and moderate seas are occurring. For the forecast, the front will move eastward across the waters N of 20N while dissipating by Fri. Gentle to locally moderate winds will follow the front along with seas 6 to 7 ft. The high pressure center located east of the front will dissipate on Thu, then, the high pressure following the front will take control of the weather pattern across the forecast waters over the next several days. $$ KRV ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC090920_C_KWBC_20260409092034_9109880-849-TWDEP.txt ****0000004797**** AXPZ20 KNHC 090920 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Thu Apr 9 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 0822 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 07.5N81W to 05N96.5W. The ITCZ continues from 05N96.5W to 06N120W to 02N140W. A second ITCZ is south of the Equator and runs from 04.5S85W to 02S120W to 03S140W. A cluster of moderate to isolated strong convection is depicted from 04N to 07N between 81W and 84W. Scattered moderate convection is depicted from 03N to 10N between 112W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Fresh to strong N winds are noted across the Gulf of Tehuantepec along with seas of 5 to 7 ft. Otherwise, a weak ridge continues to dominate the offshore waters of Baja California supporting moderate to locally fresh NW to N winds off Baja California north of 22N. Light to gentle SW winds prevail across most of the Gulf of California, except for locally moderate SW winds near Espiritu Santo. Elsewhere across the Mexican offshore waters, light to gentle winds and moderate seas, primarily in southerly swell, prevail. For the forecast, northerly winds will pulse to strong to near gale force tonight and Fri night over the Gulf of Tehuantepec. During the same period seas will build to around 8 ft. Northerly winds will pulse to fresh to strong through the weekend, with seas 7 to 8 ft. Gentle to moderate winds will return to the area beginning on Mon. Moderate to locally fresh NW winds and moderate seas are forecast off Baja California through Mon under the influence of a ridge. By Mon night into Tue, the pressure gradient may tighten enough between the ridge to the W and lower pressures inland Mexico to support moderate to fresh NW winds off the Baja California Peninsula. Fresh to strong SW winds may briefly develop in the northern Gulf of California Fri night ahead of a cold front approaching Baja California Norte, then moderate to fresh SW to W winds are expected through the upcoming weekend. Elsewhere, winds will be moderate or weaker with moderate seas through the next several days. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh to locally strong gap winds prevail across the Gulf of Papagayo. Seas are 4 to 5 ft with these winds. Farther east, moderate to locally fresh N winds and seas around 4 ft are present in the Gulf of Panama. Light to gentle winds and moderate seas dominate the remainder of the offshore forecast waters. For the forecast, fresh to locally strong gap winds are expected during the nighttime and early morning hours in the Papagayo area and downwind to about 89W through Thu. Toward the upcoming weekend, winds may increase to 30 kt at night with seas building to 8 or 9 ft in the Papagayo region as a stronger high pressure settles N of the area. Moderate northerly winds, occasionally fresh, are forecast in the Gulf of Panama throughout the forecast period, with stronger conditions most likely during the upcoming weekend. Light to gentle winds and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... A stationary front extends from 30N130W to 27N140W. Gentle NW winds and moderate seas are behind the front. An upper level trough south of the front is supporting scattered showers from 20N to 24N and west of 126W. A 1017 mb high pressure center is east of the front located near 29N125W and extends a ridge across the remainder of the N waters, particularly N of 19N and W of 117W. The pressure gradient between the ridge and lower pressures in the vicinity of the ITCZ supports moderate to locally fresh winds in the trade wind zone, W of 120W. Seas of 5 to 7 ft are within these winds. Elsewhere, moderate or weaker winds and moderate seas are occurring. For the forecast, the front will move eastward across the waters N of 20N while dissipating by Fri. Gentle to locally moderate winds will follow the front along with seas 6 to 7 ft. The high pressure center located east of the front will dissipate on Thu, then, the high pressure following the front will take control of the weather pattern across the forecast waters over the next several days. $$ KRV ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC091526_C_KWBC_20260409152643_38666572-846-TWDEP.txt ****0000004314**** AXPZ20 KNHC 091526 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Thu Apr 9 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 from 08N82W to 05N94W. The ITCZ continues from 05N94W to 06N120W to 02N140W. A second ITCZ is south of the Equator and runs from 05S85W to 01S110W to beyond 05S140W. Scattered moderate to isolated strong convection can be found from 01N to 06N between 82W and 88W. Similar convective activity is noted from 03N to 10N between 113W and 130W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Fresh to strong N winds are noted across the Gulf of Tehuantepec along with seas of 5 to 7 ft. A weak ridge continues to dominate the offshore waters of Baja California supporting moderate to locally fresh NW to N winds off Baja California. Light to gentle winds prevail across most of the Gulf of California, except for locally moderate westerly winds near the entrance to the Gulf. Elsewhere across the Mexican offshore waters, light to gentle winds and moderate seas, primarily in southerly swell, prevail. For the forecast, pulsing fresh to strong northerly winds are forecast in the Tehuantepec region through Sun, with seas building up to 7 or 8 ft. Afterwards, gentle to moderate winds are expected. Moderate to locally fresh NW winds and moderate seas are forecast off Baja California through Mon under the influence of a ridge. By Mon night into Tue, the pressure gradient may tighten enough between the ridge to the W and lower pressures inland Mexico to support moderate to fresh NW winds off the Baja California Peninsula. Fresh to strong SW winds may briefly develop in the northern Gulf of California Fri night ahead of a cold front approaching Baja California Norte, then moderate to fresh SW to W winds are expected through the upcoming weekend. Elsewhere, winds will be moderate or weaker with moderate seas through the next several days. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh to locally strong gap winds prevail across the Gulf of Papagayo and downwind to near 89W. Seas are 5 to 7 ft with these winds. Farther east, gentle to moderate N winds and seas of 3 to 4 ft are present in the Gulf of Panama. Light to gentle winds and moderate seas dominate the remainder of the offshore forecast waters. For the forecast, fresh to locally strong gap winds are expected during the nighttime and early morning hours in the Papagayo area and downwind to about 89W through Thu. Toward the upcoming weekend, winds may increase to 30 kt with seas building to 8 or 9 ft in the Papagayo region as a stronger high pressure settles N of the area. Moderate northerly winds, occasionally fresh, are forecast in the Gulf of Panama throughout the forecast period, with stronger conditions most likely during the upcoming weekend. Light to gentle winds and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... A ridge dominates the northern forecast waters N of 15N and W of 110W, including the Revillagigedo Islands with a 1018 mb high pressure located near 28N124W. Multilayer clouds, associated with strong upper level winds, are noted from 20N to 26N W of 120W. The pressure gradient between the ridge and lower pressures in the vicinity of the ITCZ supports moderate to locally fresh winds in the trade wind zone, W of 110W. Seas of 5 to 7 ft are within these winds. Elsewhere, moderate or weaker winds and moderate seas are occurring. For the forecast, high pressure will remain in control of the weather pattern across the forecast waters over the next several days with little change in winds and seas. Mainly moderate winds are expected in the trade wind zone. $$ GR ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC092118_C_KWBC_20260409211845_38666572-862-TWDEP.txt ****0000004819**** AXPZ20 KNHC 092118 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Thu Apr 9 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 2100 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from 07N77W to 06N85W to 05N100W. The ITCZ continues from 05N100W to 06N120W to 02N140W. A second ITCZ is south of the Equator and runs from 06S88W to 02S120W to 04S140W. Scattered moderate to isolated strong convection can be found from 00N to 05N between 83W and 88W. Scattered moderate convection is noted from 04N to 10N between 110W and 130W, and from 02N to 06N W of 130W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Fresh to strong N winds are noted across the Gulf of Tehuantepec and downwind to 15N based on recent scatterometer data. Seas are 5 to 7 ft with these winds. A weak ridge continues to dominate the offshore waters of Baja California supporting gentle to moderate NW to N winds with moderate seas. Light to gentle winds prevail across most of the Gulf of California, except for locally moderate southerly winds near the entrance to the Gulf. Elsewhere across the Mexican offshore waters, light to gentle winds and moderate seas, primarily in southerly swell, prevail. For the forecast, pulsing fresh to strong northerly winds are forecast in the Tehuantepec region through Sun morning, with seas building up to 7 or 8 ft. Afterwards, mainly moderate to fresh N winds are expected. Moderate to locally fresh NW winds and moderate seas are forecast off Baja California through Mon under the influence of a ridge. By Mon night into Tue, the pressure gradient may tighten enough between the ridge to the W and lower pressures inland Mexico to support moderate to fresh NW winds off the Baja California Peninsula. Fresh to locally strong SW to W winds are forecast in the northern Gulf of California Fri night through Sun night ahead of a couple of frontal boundaries approaching Baja California Norte. Elsewhere, winds will be moderate or weaker with moderate seas through the middle of next week. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh to locally strong gap winds prevail across the Gulf of Papagayo and downwind to near 89W. Seas are 6 to 8 ft with these winds. Farther east, gentle to moderate N winds and seas of 3 to 5 ft are present in the Gulf of Panama, and downstream of the Azuero Peninsula. Light to gentle winds and moderate seas dominate the remainder of the offshore forecast waters. Higher winds are occurring near the convective activity covering the waters from the Equator to 05N between 83W and 88W. For the forecast, fresh to strong gap winds are expected mainly during the nighttime and early morning hours in the Papagayo area and downwind to near 90W through at least Sun night. Winds up to 30 kt, and seas up to 9 ft are forecast during the upcoming weekend. In the Gulf of Panama, moderate northerly winds, occasionally fresh, are forecast throughout the forecast period, with stronger conditions most likely during the upcoming weekend. Light to gentle winds and moderate seas will prevail elsewhere. ...REMAINDER OF THE AREA... A ridge dominates the northern forecast waters N of 15N and W of 110W, including the Revillagigedo Islands, with a 1018 mb high pressure center located near 28N123W. Multilayer clouds, with possible showers, associated with strong upper level winds, are noted from 20N to 25N W of 120W. A surface trough is analyzed is this area and extends from 24N125W to 18N132W. Scatterometer data indicate some wind shift related to the trough axis. The pressure gradient between the ridge and lower pressures in the vicinity of the ITCZ supports moderate to locally fresh winds N of the ITCZ to about 12N and W of 120W. Elsewhere, moderate or weaker winds and moderate seas are occurring. For the forecast, high pressure will remain in control of the weather pattern across the forecast waters over the next several days with little change in winds and seas. Mainly moderate winds are expected in the trade wind zone. On Sun, another cold front will reach the N waters extending from 31N120W to 29N140W. gentle to moderate N winds and moderate seas are expected in the wake of the front. $$ GR ########################### END OF MESSAGE SET ############################