--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2026-05-31 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC310406_C_KWBC_20260531040713_49676782-4386-TWDEP.txt ****0000005479**** AXPZ20 KNHC 310406 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Sun May 31 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... A tropical wave extends along 101W, S of 13N, moving westward at 5-10 kt. The wave has detached from the low it was associated formerly. Scattered moderate convection is noted from 04N to 12N between 103W and 112W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from 09N84W to 08N114W to low pres near 09N130W 1008 mb to 06N140W. Scattered moderate convection is from 03N to 11.5N E of 91W. Numerous moderate to strong convection is from 05N to 11N between 127W and 140W. Scattered moderate isolated strong convection is noted from 03N to 12N between 110W and 125W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A broad surface ridge extends into the region to just NW of the Revillagigedo Islands. The pressure gradient between the ridge and a surface trough along the Gulf of California is producing moderate to fresh NW to N winds across the Baja California offshore waters. NW swell continues to produce moderate to rough seas to 8 ft over the waters N of Cabo San Lazaro while SW swell is supporting 7 to 9 ft seas across the offshore waters from Cabo San Lazaro to Cabo San Lucas. Inside the Gulf of California and S of 28N, winds are moderate to fresh from the NW with seas to 3 ft N of 25N and 3 to 6 ft across the entrance of the Gulf. Light to gentle winds prevail elsewhere along with moderate seas to 7 ft in SW swell, including the Gulf of Tehuantepec. For the forecast, NE Pacific high pressure will maintain a ridge across the regional waters through Thu, which will maintain moderate to fresh NW winds across the Baja California offshore waters through Thu night, except diminishing briefly to gentle to moderate speeds Sun night through Tue. NW swell moving through the Baja California offshore waters will briefly merge with SW swell across the SW Mexican offshores tonight to produce seas to 10 ft. New N swell will then enter the Baja California Norte waters Sun morning and subside Mon night. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Recent satellite scatterometer data show light to gentle S to SW winds prevailing S of the monsoon trough, and light and variable winds to the north of it. Seas are mainly moderate in building SW swell, except 7 to 10 ft between the Galapagos Islands and Ecuador adjacent waters W of 83W. For the forecast, a weak pressure pattern across the region will result in light to gentle winds through the period, with nocturnal pulses of moderate to fresh gap winds across the Papagayo region. Large SW swell across the regional waters will maintain rough seas to 9 ft across the waters between the Galapagos Islands and Colombia before subsiding Sun night. Moderate seas in SW swell elsewhere will prevail across the forecast waters. New SW swell will reach the Galapagos Tue night. Otherwise, expect periods of active convection across the area waters Sun night through Tue. ...REMAINDER OF THE AREA... High pressure covers the waters north of 18N and west of 115W, centered on strong high pressure NE of the Hawaiian Islands. The pressure gradient between the high pressure and lower pressure within the monsoon trough is supporting moderate to fresh NE to E winds N of the ITCZ to near 30N and west of about 120W. Recent satellite altimeter data showed seas over these waters in the 7 to 11 ft range in a mix of trade wind swell and NW to N swell. Gentle to moderate winds are elsewhere S of the monsoon trough W of 110W. Seas across the waters S of the trough are generally 7 to 10 ft in building S to SW swell. For the forecast, little change is expected in winds through Sun before high pressure begins to drift N and winds weaken slightly Sun night through early Tue. The current NW to N swell will combine with wind waves produced by the fresh trade winds N of the monsoon/ITCZ leading to rough seas over the waters W of 120W through early Mon. E of 120W, NW to N swell will merge with southerly swell over the central waters during the weekend, with wave heights of 8 to 9 ft forecast to cover a good portion of the waters S through SW of the southern tip of Baja California to the Equator E of 120W, and westward to near 140W. Looking ahead, the latest Tropical Weather Outlook issued by NHC indicates that a broad area of low pressure is forecast to form during the next few days well to the southwest of the southern tip of the Baja California peninsula. Environmental conditions appear conducive for additional development thereafter, and a tropical depression is likely to form during the middle part of next week while moving westward or west-northwestward at 10 to 15 kt across the western portion of the East Pacific. $$ Ramos ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC310939_C_KWBC_20260531094015_49676782-4400-TWDEP.txt ****0000005605**** AXPZ20 KNHC 310939 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Sun May 31 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 0920 UTC. ...TROPICAL WAVES... A tropical wave extends along 105W, from 02N to 14N, moving westward at 5-10 kt. Scattered moderate convection is noted from 04N to 11N between 98W and 114W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from 10N85W to 11N107W to low pres near 08N123W 1009 mb to low pres near 08N133W to 06N140W. Aside from the convection associated with the tropical wave, scattered moderate isolated strong convection associated also with the 1009 mb low is from 02N to 11N between 114W and 125W, and from 01N to 13N between 127W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A broad surface ridge extends into the region to just NW of the Revillagigedo Islands. The pressure gradient between the ridge and a surface trough along the Gulf of California is producing moderate to fresh NW to N winds across the Baja California offshore waters. NW swell continues to produce moderate seas to 7 ft over the waters N of Cabo San Lazaro while merging SW and NW swell is supporting 7 to 9 ft seas across the offshore waters from Cabo San Lazaro to Cabo San Lucas. Inside the Gulf of California and S of 28N, winds are gentle to moderate from the NW with seas to 3 ft N of 25N and 3 to 6 ft across the entrance of the Gulf. Light to gentle winds prevail elsewhere along with moderate seas to 7 ft in SW swell, including the Gulf of Tehuantepec. For the forecast, NE Pacific high pressure will maintain a ridge across the regional waters through Thu, which will maintain moderate to fresh NW winds across the Baja California offshore waters through Thu night, except diminishing briefly to gentle to moderate speeds Sun night through Tue. NW swell moving through the Baja California offshore waters will merge with SW swell across the Jalisco and Revillagigedo Islands offshore waters today to produce rough seas forecast to subside tonight into early Mon. New N swell will enter the Baja California Norte waters this afternoon before subsiding Mon night. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Light to gentle variable winds prevail across the Central America offshore waters along with moderate seas to 7 ft in SW swell. South of the monsoon trough, and between the Galapagos Islands and Ecuador winds are gentle to moderate from the SSE and seas are 7 to 9 ft in long period SW swell. For the forecast, a weak pressure pattern across the region will result in light to gentle winds across the Central America offshores through the period, except for nocturnal pulses of moderate to fresh gap winds across the Papagayo region. Moderate seas in SW swell will prevail across these forecast waters through Thu night. Gentle to moderate S to SE winds between the Galapagos Islands and Ecuador will continue to affect these waters through the forecast period. Current SW swell bringing rough seas to 9 ft will subside tonight into early Mon. However, new long period SW swell is forecast to enter the southern Galapagos adjacent waters Tue night and subside Thu night. ...REMAINDER OF THE AREA... High pressure covers the waters north of 17N and west of 115W, centered on strong high pressure NE of the Hawaiian Islands. The pressure gradient between the high pressure and lower pressure within the monsoon trough is supporting moderate to fresh NE to E winds N of the monsoon to near 30N and west of about 120W. Seas over these waters are in the 7 to 10 ft range in a mix of trade wind swell and NW to N swell. Gentle to moderate winds are elsewhere S of the monsoon trough W of 90W. Seas across the waters S of the monsoon trough are generally 7 to 10 ft in building S to SW swell. For the forecast, little change is expected in winds through today before high pressure begins to drift N and winds weaken slightly tonight through early Tue. The current NW to N swell will combine with wind waves produced by the fresh trade winds N of the monsoon/ITCZ leading to rough seas over the waters W of 120W through early Mon. E of 120W, NW to N swell will continue to merge with southerly swell over the central waters through early Mon, with wave heights of 8 to 9 ft forecast to cover a good portion of the waters S through SW of the southern tip of Baja California to the Equator E of 120W, and westward to near 140W. Looking ahead, the latest Tropical Weather Outlook issued by NHC indicates that a broad area of low pressure is forecast to form during the next few days well to the southwest of the southern tip of the Baja California peninsula. Environmental conditions appear conducive for additional development thereafter, and a tropical depression is likely to form during the middle part of next week while moving westward or west-northwestward at 10 to 15 kt across the western portion of the East Pacific. $$ Ramos ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC311528_C_KWBC_20260531152918_49676782-4421-TWDEP.txt ****0000005327**** AXPZ20 KNHC 311528 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Sun May 31 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. ...TROPICAL WAVES... A tropical wave extends along 106W, from 02N to 14N, moving westward at around 5 kt. Scattered moderate convection is noted from 04N to 14N between 98W and 114W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from 09N82W to 11N105W to low pres near 08N123W 1009 mb to low pres near 08N133W 1009 mb to 06N140W. Aside from the convection associated with the tropical wave, scattered moderate isolated strong convection associated also with low pressures are from 02N to 11N between 114W and 125W and from 01N to 13N between 127W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A broad surface ridge extends into the region to just NW of the Revillagigedo Islands. The pressure gradient between the ridge and a surface trough along the Gulf of California is producing moderate NW to N winds across the Baja California offshore waters. NW swell continues to produce moderate seas to 8 ft over the waters N of Cabo San Lazaro while merging SW and NW swell is supporting 7 to 9 ft seas across the offshore waters from Cabo San Lazaro to Cabo San Lucas. Inside the Gulf of California winds are gentle NW with seas slight seas, except 3 to 6 ft across the entrance of the Gulf. Light to gentle winds prevail elsewhere along with 6 to 8 ft seas in SW swell, including the Gulf of Tehuantepec. For the forecast, NE Pacific high pressure will maintain a ridge across the regional waters through the week, which will maintain moderate to fresh NW winds across the Baja California offshore waters. NW swell moving through the Baja California offshore waters will merge with SW swell across the Jalisco and Revillagigedo Islands offshore waters to produce rough seas forecast to subside tonight into early Mon. N swell will impact the Baja California Norte waters through Mon night. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Light to gentle variable winds prevail across the Central American offshore waters along with moderate seas to 7 ft in SW swell. South of the monsoon trough, and between the Galapagos Islands and Ecuador winds are gentle to moderate from the SSE and seas are 7 to 9 ft in long period SW swell. For the forecast, a weak pressure pattern across the region will result in light to gentle winds across the Central America offshores through the period, except for nocturnal pulses of moderate to fresh gap winds across the Papagayo region. Moderate seas in SW swell will prevail across these forecast waters through Thu night. Gentle to moderate S to SE winds between the Galapagos Islands and Ecuador will continue to affect these waters through the forecast period. SW swell bringing rough seas to 9 ft will subside tonight. However, new long period SW swell is forecast to enter the southern Galapagos adjacent waters Tue night and subside Thu night. ...REMAINDER OF THE AREA... High pressure covers the waters north of 17N, centered on strong high pressure between Hawaii and California. The pressure gradient between the high pressure and lower pressure within the monsoon trough is supporting moderate to fresh NE to E winds N of the monsoon to near 30N and west of about 120W. Seas over these waters are in the 7 to 10 ft range in a mix of trade wind swell and NW to N swell. Gentle to moderate winds are elsewhere S of the monsoon trough W of 90W. Seas across the waters S of the monsoon trough are generally 7 to 10 ft in S to SW swell. For the forecast, high pressure will drift N and winds will weaken slightly tonight through early Tue. The current NW to N swell will combine with wind waves produced by the fresh trade winds N of the monsoon/ITCZ leading to rough seas over the waters W of 120W through early Mon. E of 120W, NW to N swell will continue to merge with southerly swell over the central waters through early Mon, with wave heights of 8 to 9 ft forecast to cover a good portion of the waters S through SW of the southern tip of Baja California to the Equator E of 120W, and westward to near 140W. Looking ahead, the latest Tropical Weather Outlook issued by NHC indicates that a broad area of low pressure is forecast to form during the next few days well to the southwest of the southern tip of the Baja California peninsula. Environmental conditions appear conducive for additional development thereafter, and a tropical depression is likely to form during the middle part of next week while moving westward or west-northwestward at 10 to 15 kt across the western portion of the East Pacific. $$ Konarik ########################### END OF MESSAGE SET ############################