--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2026-06-17 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC170405_C_KWBC_20260617040603_32440682-3079-TWDEP.txt ****0000005016**** AXPZ20 KNHC 170405 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Wed Jun 17 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 0350 UTC. ...TROPICAL WAVES... The axis of a tropical wave is near 84W extending from 01N northward to across Nicaragua and into the Gulf of Honduras, moving westward at around 20 kt. Nearby convection is described with the monsoon trough below. The axis of a tropical wave is now analyzed near 105W extending from 03N to 15N. Nearby convection is described with the monsoon trough below. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from the SW Caribbean Sea near 10N74W to across Costa Rica, reaching from the Gulf of Papagayo at 11N86W to 12N100W to 07N115W. The ITCZ extends from 07N115W to 06N126W to 09N134W just to the SE of low pressure, Invest EP93 near 11N135W. Scattered moderate isolated strong convection is from 03N to 16N E of 100W, from 04N to 14N between 100W and 120W. Convection associated with Invest EP93 has dissipated. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A surface trough extends from the northern Gulf of California into Baja California Sur to Cabo San Lucas. The pressure gradient between the trough and surface ridging to the west is supporting moderate to fresh NW winds across the Baja Peninsula offshores along with moderate seas to 7 ft in S-SW swell. In the Gulf of California, winds are light to gentle and seas remain slight north of the entrance of the gulf. A weak pressure gradient across the remainder discussion waters is supporting light to gentle winds with moderate seas to 6 ft in S-SW swell. Active convection is present across the offshore waters from Chiapas to Oaxaca, including the Gulf of Tehuantepec as described above. For the forecast, gentle to moderate winds will prevail across the waters of Baja California, pulsing to locally fresh speeds at night. Gentle to occasionally moderate winds are expected inside the Gulf of California and near the tip of Baja California Sur, reaching to locally fresh speeds Wed into early Thu. Light to gentle winds will prevail over the waters between Cabo Corrientes and Tehunatepec. Moderate seas in mainly southerly swell will prevail through the next several days, slight in the Gulf of California. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gentle to moderate E to SE winds are ongoing offshore Gulf of Papagayo along with moderate seas. Mainly light to gentle winds under a weak pressure gradient prevail across the remainder of the waters along with slight to moderate seas. Otherwise, scattered heavy showers and tstms are across the offshore waters from western Colombia northwestward to offshore Guatemala as described within the monsoon trough section above. Winds and seas may be higher in and near these areas of deep convection. For the forecast, gentle to occasionally moderate S to SE winds and moderate seas will prevail across the offshore waters between Ecuador and the Galapagos Islands through Sun night. Moderate winds will pulse to fresh in diurnal offshore flow in the immediate Gulf of Papagayo beginning Fri night. Light to gentle winds and slight to moderate seas in SW swell are forecast elsewhere. ...REMAINDER OF THE AREA... A 1008 mb low, Invest EP93, centered well east-southeast of the Hawaiian Islands near 11N135W is producing limited shower and thunderstorm activity. Moderate to fresh winds are within 240 nm northern semicircle and 90 nm SE quadrant of the low center. Moderate to rough seas to around 8 ft are also within that distance from the low center with the highest seas being in the NW quadrant. Elsewhere, moderate or weaker winds and moderate seas prevail. For the forecast, low pressure, Invest EP93, located well east- southeast of the Hawaiian Islands, is moving into an unfavorable environment with an increasingly dry mid-level airmass and increasing upper-level winds, and development is no longer expected. Elsewhere, moderate or weaker winds, and moderate seas will prevail, except seas building to rough south of and near the Equator and east of 120W in new southerly swells tonight and early Wed through the end of the week. Winds may pulse to fresh in the west-central waters at times. Looking ahead, yet another set of southerly swell may build seas to rough over the same area during the upcoming weekend. $$ Ramos ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC170937_C_KWBC_20260617093807_32440682-3098-TWDEP.txt ****0000004709**** AXPZ20 KNHC 170937 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Wed Jun 17 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 0930 UTC. ...TROPICAL WAVES... The axis of a tropical wave is near 86W extending from 02N northward to across Nicaragua and into the Gulf of Honduras, moving westward at around 15-20 kt. Nearby convection is described with the monsoon trough below. The axis of a tropical wave is now analyzed near 106W extending from 03N to 16N. Nearby convection is described with the monsoon trough below. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from the SW Caribbean Sea near 10N74W to across Costa Rica, reaching from the Gulf of Papagayo at 11N86W to 12N100W to 09N115W. The ITCZ extends from 09N115W to 06N126W to 09N136W just to the SE of a surface trough, remnant of former Invest EP93. Scattered moderate isolated strong convection is from 02N to 15N E of 100W. Scattered moderate convection is from 08N to 14N between 109W and 120W. Numerous moderate to strong convection is from 10N to 12N W of 138W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A surface trough extends from the northern Gulf of California into Baja California Sur to Cabo San Lucas. The pressure gradient between the trough and surface ridging to the west is supporting moderate to fresh NW winds across the Baja Peninsula offshores along with moderate seas to 7 ft in S-SW swell. In the Gulf of California, winds are gentle to moderate from the SSW and seas remain slight north of the entrance of the gulf. A weak pressure gradient across the remainder discussion waters is supporting light to gentle winds with moderate seas to 6 ft in S-SW swell. Active convection is present across the offshore waters from Chiapas to Guerrero, including the Gulf of Tehuantepec as described above. For the forecast, gentle to moderate winds will prevail across the waters of Baja California, pulsing to locally fresh speeds at night. Gentle to occasionally moderate winds are expected inside the Gulf of California and near the tip of Baja California Sur, reaching to locally fresh speeds today into early Thu. Light to gentle winds will prevail over the waters between Cabo Corrientes and Tehunatepec. Moderate seas in mainly southerly swell will prevail through the next several days, slight in the Gulf of California. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Mainly light to gentle winds under a weak pressure gradient prevail across the offshore waters along with slight to moderate seas in SW swell. Otherwise, scattered heavy showers and tstms are across the offshore waters from Nicaragua northwestward to offshore Guatemala as described within the monsoon trough section above. Winds and seas may be higher in and near these areas of deep convection. For the forecast, gentle to occasionally moderate S to SE winds and moderate seas will prevail across the offshore waters between Ecuador and the Galapagos Islands through Sun night. Moderate winds will pulse to fresh in diurnal offshore flow in the immediate Gulf of Papagayo beginning Fri night. Light to gentle winds and slight to moderate seas in SW swell are forecast elsewhere. ...REMAINDER OF THE AREA... A surface trough, remnant of Invest EP93, extends from 08N to 15N and is producing a cluster of heavy showers and thunderstorm activity from 10N to 12N W of 138W. Moderate to fresh winds are within 150 nm either side of the trough N of 11N. Moderate to rough seas to around 8 ft are also within these winds. Elsewhere, moderate or weaker winds and moderate seas prevail. For the forecast, the remnants of former Invest EP93, will move W of 140W later today. Elsewhere, moderate or weaker winds, and moderate seas will prevail, except seas building to rough south of and near the Equator and east of 120W in new southerly swells through the end of the week. Winds may pulse to fresh in the west-central waters at times. Looking ahead, yet another set of southerly swell may build seas to rough over the same area during the upcoming weekend. $$ Ramos ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC171459_C_KWBC_20260617150010_32440682-3122-TWDEP.txt ****0000005063**** AXPZ20 KNHC 171459 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Wed Jun 17 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 1400 UTC. ...TROPICAL WAVES... The axis of a tropical wave is near 89.5W extending from 01N northward near the Galapagos Islands to across western El Salvador and eastern Guatemala into the Gulf of Honduras, moving westward at around 20 kt. Nearby convection is described with the monsoon trough below. The axis of a tropical wave is analyzed near 108W extending from 02N to 16N. Nearby convection is described with the monsoon trough below. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from the SW Caribbean Sea to across Panama to the Pacific near 08.5N79W to 07.5N81W to 13N94.5W to 08.5N116W. The ITCZ extends from 08.5N116W to 07.5N126W to 10N138W. Scattered moderate isolated strong convection is from 01N to 09N between 77W and 86W, and from 04.5N to 16.5N between 91W and 97.5W. Scattered moderate convection is noted from 01.5S to 01N between 112W and 118W, from 07N to 14N between 112W and 122.5W, and from 09N to 13N between 138W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A surface trough extends from the northern Gulf of California into Baja California Sur to Cabo San Lucas. The pressure gradient between the trough and surface ridging to the west is supporting moderate to locally fresh NW winds across the Baja Peninsula offshores north of Cabo San Lazaro and gentle south of there, along with moderate seas to 7 ft in S-SW swell. In the Gulf of California, winds are now moderate to locally freshfrom the SSE, and seas remain slight north of the entrance of the gulf. A weak pressure gradient across the remainder discussion waters is supporting light to gentle winds with moderate seas to 6 ft in S-SW swell. Active convection is present across the offshore waters from Chiapas to Guerrero, including the Gulf of Tehuantepec as described above. For the forecast, gentle to moderate winds will prevail across the waters of Baja California, pulsing to locally fresh speeds at night. Gentle to occasionally moderate winds are expected inside the Gulf of California and near the tip of Baja California Sur, reaching to locally fresh speeds today into early Thu. Light to gentle winds will prevail over the waters between Cabo Corrientes and Tehunatepec. Moderate seas in mainly southerly swell will prevail through the next several days, slight in the Gulf of California. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Mainly light to gentle winds under a weak pressure gradient prevail across the offshore waters along with moderate seas in S-SW swell. Otherwise, scattered heavy showers and tstms are across the offshore waters of Colombia and Panama ahead of a tropical wave currently analyzed in the Caribbean Sea. Winds and seas may be higher in and near these areas of deep convection. Some scattered showers and isolated thunderstorms are also occurring offshore El Salvador and Guatemala near another tropical wave. For the forecast, gentle to occasionally moderate S to SE winds and moderate seas will prevail across the offshore waters between Ecuador and the Galapagos Islands through at least Sun night. Moderate winds will pulse to fresh in diurnal offshore flow in the immediate Gulf of Papagayo. Light to gentle winds and slight to moderate seas in SW swell are forecast elsewhere through at least the next several days. ...REMAINDER OF THE AREA... A surface trough, remnant of Invest EP93, extends from 14N138W southwestward to west of 140W. Active convection is present near 140W as described above. Moderate to fresh winds are within 150 nm either side of the trough north of 11N. Moderate to locally rough seas to around 8 ft are also within these winds. Elsewhere, moderate or weaker winds and moderate seas prevail, with a frontal trough just N of 30N helping to weaken the pressure gradient. For the forecast, the remnants of former Invest EP93, will move completely west of 140W later today. Elsewhere, moderate or weaker winds, and moderate seas will prevail, except seas building to rough south of and near the Equator and east of 120W in new southerly swells through the end of the week. Winds may pulse to fresh in the west-central waters at times. Looking ahead, yet another set of southerly swell may build seas to rough over the same area during the upcoming weekend. $$ Lewitsky ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC171927_C_KWBC_20260617192803_9109880-6149-TWDEP.txt ****0000005361**** AXPZ20 KNHC 171927 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Wed Jun 17 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 1900 UTC. ...TROPICAL WAVES... The axis of a tropical wave is entering the basin near 78W from just offshore western Colombia northward to eastern Panama and into the Caribbean Sea, moving westward around 20 kt. Any nearby convection is described with the monsoon trough below. The axis of a tropical wave is near 91.5W extending from 02N northward near the Galapagos Islands to across portions of Guatemala, moving westward at around 20 kt. Any nearby convection is described with the monsoon trough below. The axis of a tropical wave is analyzed near 111W extending from 03N to 16N. Any nearby convection is described with the monsoon trough below. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from the SW Caribbean Sea to across the border of Costa Rica and Panama to the Pacific near 08.8N84W to 14.5N93.5W near the Gulf of Tehuantepec. The ITCZ extends from 14N101W to 13N109W, then resumes west of a tropical wave from 12N111W to 08N127W to 09N139W. Scattered moderate isolated strong convection is from 01N to 09N between 77W and 88W, and from 01N to 06.5N between 136W and 140W. Isolated to widely scattered moderate convection is noted from 09N to 13N between 89W and 98W, from 11N to 15N between 102W and 109W, from 04N to 07N between 106W and 111W, and within 180 nm either side of the ITCZ between 112W and 124W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A surface trough extends from the northern Gulf of California into Baja California Sur to near the Revillagigedo Islands. The pressure gradient between the trough and surface ridging to the west is supporting mainly moderate NW-N winds offshore Baja California to the north of Cabo San Lazaro, and moderate to fresh SE-S winds in the Gulf of California, locally strong N of 29N. A weak pressure gradient across the remainder discussion waters is supporting light to gentle winds. Moderate seas dominate the offshore waters with heights of 5-7 ft in S-SW Swell. In the Gulf of California, seas are mainly 2-4 ft. For the forecast, gentle to moderate winds will prevail across the waters of Baja California, pulsing to locally fresh speeds at night. Gentle to occasionally moderate winds are expected inside the Gulf of California and near the tip of Baja California Sur, reaching to locally fresh to strong speeds tonight into early Thu. Light to gentle winds will prevail over the waters between Cabo Corrientes and Tehunatepec. Moderate seas in mainly southerly swell will prevail through the next several days, slight in the Gulf of California. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Mainly light to gentle winds under a weak pressure gradient prevail across the offshore waters along with moderate seas in S-SW swell. Otherwise, scattered heavy showers and tstms are across the offshore waters of Colombia and Panama ahead of a tropical wave currently analyzed in the Caribbean Sea. Winds and seas may be higher in and near these areas of deep convection. Some scattered showers and isolated thunderstorms are also occurring offshore El Salvador and Guatemala near another tropical wave. For the forecast, gentle to occasionally moderate S to SE winds and moderate seas will prevail across the offshore waters between Ecuador and the Galapagos Islands through at least Sun night. Moderate winds will pulse to fresh in diurnal offshore flow in the immediate Gulf of Papagayo. Light to gentle winds and slight to moderate seas in SW swell are forecast elsewhere through at least the next several days. ...REMAINDER OF THE AREA... A surface trough, remnant of Invest EP93, is near 140W. The most concentrated associated convection has pushed W of 140W while moderate to fresh winds linger from 11N to 18N between 136W and 140W. Elsewhere, moderate or weaker winds and moderate seas prevail, with a frontal trough along 28N/29W which is helping to weaken the pressure gradient with ridging along 24N/25N. Sporadic convection, some associated with passing tropical waves, is near the monsoon trough and ITCZ as described above. For the forecast, the remnants of former Invest EP93, will move farther west of 140W later tonight. Elsewhere, moderate or weaker winds, and moderate seas will prevail, except seas building to rough south of and near the Equator and east of 120W in new southerly swells through the end of the week. Winds may pulse to fresh in the west-central waters at times. Looking ahead, yet another set of southerly swell may build seas to rough over the same area during the upcoming weekend, then decaying early next week. $$ Lewitsky ########################### END OF MESSAGE SET ############################