--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2023-11-30 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC300350_C_KWBC_20231130035032_31391944-824-TWDEP.txt ****0000004754**** AXPZ20 KNHC 300350 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Thu Nov 30 2023 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 0330 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from the coast of Costa Rica near 09N84W to low pressure near 10N109W 1007 mb to 06N129W. The ITCZ continues from 06N129W to beyond 05N140W. Scattered moderate to isolated strong convection is noted around the low pressure from 06N to 16N between 101W and 113W. Scattered moderate convection is noted from 05N to 08N between 82W and 102W and from 05N to 14N between 114W and 125W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... High pressure extending across eastern Mexico continues to weaken and shift eastward across the eastern Gulf of Mexico. The resultant pressure gradient is bringing strong N to NE winds across the Gulf of Tehuantepec and downwind of Tehuantepec to near 14N. Seas range 6 to 8 ft in this area. Elsewhere, moderate N-NW winds are noted across the Baja California offshore waters N of 20N, becoming N to NE from 20N southward through the Revillagigedo Islands. Seas are 6 to 7 ft in fading NW swell across the Baja waters. Fresh to locally strong N to NW winds are noted in the northern Gulf of California with gentle to moderate winds in the souther Gulf. Seas are to 4 ft inside the Gulf. Light to gentle winds are elsewhere over the discussion waters between Cabo Corrientes and Tehuantepec, where seas are in the 5-7 ft range. For the forecast, winds and seas will gradually diminish across and downstream of the Gulf of Tehuantepec tonight, then diminish considerably on Thu as high pressure dominating the Gulf of Mexico shifts eastward. High pressure will build across the region from the NW, bringing a return to moderate to locally fresh NW winds across the Baja offshore waters through Fri. As the high pressure begins to build into the area tonight, strong westerly gap winds are expected to develop across the northern and central Gulf of California tonight and diminish by Fri. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh E-NE gap winds are over the Papagayo region and extends to near 90W, and moderate offshore winds extending across the waters offshore of northern Nicaragua and the Gulf of Fonseca. Seas across this area are 5 to 7 ft. Light to gentle offshore winds are elsewhere north of the monsoon trough. Gentle to moderate SW winds are elsewhere S of the monsoon trough. Seas of 4-7 ft prevail across the area waters. Scattered showers and thunderstorms are still lingering across the near and offshore waters south of Panama and Costa Rica. For the forecast, moderate to fresh winds are expected across and well downstream of the Gulf of Papagayo region through Thu night, pulsing to strong speeds at night. Moderate W to NW swell across the regional waters will continue through Thu. Scattered thunderstorms across the near and offshore waters of Panama and Costa Rica will shift westward and well offshore by Thu. ...REMAINDER OF THE AREA... High pressure NW of the area waters has begun to nosed southeastward across the northern waters, to the waters offshore of Baja California Sur. The pressure gradient between this area of high pressure and the remnant trough of Ramon near 19N131W to 09N127W, as well as the monsoon trough and ITCZ, is supporting fresh to locally strong winds N of the the monsoon trough/ITCZ to 26N and west of 110W. Light to gentle winds are N of 25N. Gentle to moderate winds are found S of the monsoon trough/ITCZ. NW swell dominates the discussion waters W of 100W, with seas in the 7-9 ft range in fading NW swell. Seas of 6-7 ft are noted elsewhere. For the forecast, The high pressure to the northwest will build SE across the region tonight and Thu and freshen NE to E winds south of 25N into the weekend. NW swell across the waters from 10N and 25N will continue to move westward across the waters through the next few days. The swell area will expand in coverage by the weekend as winds increase from the pressure gradient. Swell impacting waters south of 10N will subside by the weekend. $$ AReinhart ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC300945_C_KWBC_20231130094534_31391944-842-TWDEP.txt ****0000004929**** AXPZ20 KNHC 300945 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Thu Nov 30 2023 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 0900 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from the coast of Costa Rica near 10N85W to low pressure near 09N111W 1009 mb to 05N131W. The ITCZ continues from 05N131W to beyond 05N140W. Scattered moderate to isolated strong convection is noted around the low pressure from 06N to 14N between 107W and 113W. Scattered moderate convection is noted from 04N to 12N between 91W and 106W and from 06N to 10N between 114W and 125W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Moderate N-NW winds are noted across the Baja California offshore waters N of 20N, becoming N to NE from 20N southward through the Revillagigedo Islands. Seas are 6 to 7 ft in fading NW swell across the Baja waters. Fresh to locally strong N to NW winds are noted in the northern Gulf of California with gentle to moderate winds in the southern Gulf. Seas are to 4 ft inside the Gulf. Light to gentle winds are elsewhere over the discussion waters between Cabo Corrientes and Tehuantepec, where seas are in the 5-7 ft range. Thunderstorms are noted in the offshore waters of Guerrero. Pressure gradient from the high pressure across the Gulf of Mexico continues to weaken. Strong winds continue across the Gulf of Tehuantepec but diminishing in coverage with seas to 6 ft. For the forecast, winds and seas will diminish across the Gulf of Tehuantepec today. High pressure will build across the Baja California offshore waters today, bringing moderate to locally fresh NW winds across the Baja offshore waters through Fri. NW swell will move across the Baja California offshore waters later today into tonight north of Punta Eugenia. The swell will reach as far south as 26N, bringing seas between 8 to 10 ft through Fri night. This swell will linger across the far northern Baja California offshore waters through the weekend and into early next week. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh E-NE gap winds are over the Papagayo region and extends to near 91W, and moderate offshore winds extending across the waters offshore of northern Nicaragua and the Gulf of Fonseca. Seas across this area are 5 to 7 ft. Light to gentle offshore winds are elsewhere north of the monsoon trough. Light to gentle SW winds are elsewhere S of the monsoon trough. Seas of 4-7 ft prevail across the area waters in mixed swell. Scattered showers and thunderstorms are still lingering across the near and offshore waters of Colombia. For the forecast, moderate to fresh winds are expected across and well downstream of the Gulf of Papagayo region through Thu night, pulsing to strong speeds at night. Moderate W to NW swell across the regional waters will continue today. Moderate southerly swell will approach the Galapagos Islands and Ecuador offshore waters late weekend and into early next week. ...REMAINDER OF THE AREA... High pressure NW of the area waters extends across waters N of 18N. The pressure gradient between this area of high pressure and the remnant trough of Ramon near 16N1312 to 098130W, as well as the monsoon trough and ITCZ, is supporting moderate to fresh winds N of the monsoon trough/ITCZ to 26N and west of 110W.Gentle to moderate winds are noted N of 26N to 31N. Light to gentle winds are N of 25N. Gentle to moderate winds are found S of the monsoon trough/ITCZ. NW swell dominates the discussion waters W of 100W, with seas in the 7-9 ft range in fading NW swell. Seas of 6-7 ft are noted elsewhere. For the forecast, the high pressure NW of the area will continue to build SE across the region today. This will tighten the pressure gradient between the high pressure and the ITCZ/monsoon trough. This will bring fresh to strong NE to E winds south of 25N into the weekend. NW swell across the waters from 10N and 25N will continue to move westward across the waters through the next few days. The swell area will expand in coverage by the weekend as winds increase. The NW swell impacting waters N of 29N between 121W and 127W will shift eastward towards the Baja California waters over the next few days, lingering through the weekend. Swell impacting waters south of 10N will subside by the weekend. $$ AReinhart ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC301522_C_KWBC_20231130152346_21954772-501-TWDEP.txt ****0000004710**** AXPZ20 KNHC 301522 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Thu Nov 30 2023 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... The monsoon trough extends from the coast of Costa Rica near 10N85W to low pressure near 09N113W 1008 mb to 08N127W. The ITCZ continues from 08N127W to beyond 06N140W. Scattered moderate to isolated strong convection is noted from 05N to 10N between 94W and 104W, and around the low pressure from 05N to 12N between 107W and 122W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Moderate N-NW winds are noted across the Baja California offshore waters N of 20N, becoming N to NE from 20N southward through the Revillagigedo Islands. Seas are 6 to 7 ft in fading NW swell across the Baja waters. Fresh N to NW winds are noted in the northern Gulf of California with gentle to moderate winds in the southern Gulf. Seas are to 4 ft inside the Gulf. Light to gentle winds are elsewhere over the discussion waters between Cabo Corrientes and Tehuantepec, where seas are in the 5-7 ft range. Pressure gradient from the high pressure across the Gulf of Mexico continues to weaken. Strong winds continue across the Gulf of Tehuantepec but diminishing in coverage with seas to 6 ft. For the forecast, winds and seas will diminish across the Gulf of Tehuantepec today. Surface ridging will prevail across the Baja California offshore waters today, bringing moderate to fresh NW winds across the Baja offshore waters through Fri. NW swell will move across the Baja California offshore waters later today into tonight north of Punta Eugenia. The swell will reach as far south as 25N, bringing seas between 8 to 10 ft through early Sat. This swell will linger across the far northern Baja California offshore waters through the weekend and into early next week. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh to strong E-NE gap winds are over the Papagayo region and extends to near 91W, and moderate offshore winds extending across the waters offshore of northern Nicaragua and the Gulf of Fonseca. Seas across this area are 5 to 7 ft. Light to gentle offshore winds are elsewhere north of the monsoon trough. Light to gentle SW winds are elsewhere S of the monsoon trough. Seas of 4-7 ft prevail across the area waters in mixed swell. Scattered showers and thunderstorms are still lingering across the near and offshore waters of Colombia. For the forecast, moderate to fresh winds are expected across and well downstream of the Gulf of Papagayo region through Thu night, pulsing to strong speeds at night. Moderate W to NW swell across the regional waters will continue today. Moderate southerly swell will approach the Galapagos Islands and Ecuador offshore waters late weekend and into early next week. ...REMAINDER OF THE AREA... High pressure NW of the area waters extends across waters N of 17N. The pressure gradient between this area of high pressure and the monsoon trough and ITCZ is supporting moderate to fresh winds N of the monsoon trough/ITCZ to 25N and west of 110W. Gentle to moderate winds are noted N of 26N. Light to gentle winds are N of 25N, while gentle to moderate winds are noted S of the monsoon trough/ITCZ. NW swell dominates the discussion waters W of 100W, with seas in the 7-9 ft range in fading NW swell. Seas of 6-7 ft are noted elsewhere. For the forecast, the high pressure NW of the area will continue to build SE across the region today. This will tighten the pressure gradient between the high pressure and the ITCZ/monsoon trough. Fresh to strong NE to E winds will prevail south of 25N into the weekend. NW swell across the waters from 10N and 25N will continue to move westward across the waters through the next few days. The swell area will expand in coverage by the weekend as winds increase. The NW swell impacting waters N of 29N between 121W and 127W will shift eastward towards the Baja California waters over the next few days, lingering through the weekend. Swell impacting waters south of 10N will subside by the weekend. $$ ERA ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC302109_C_KWBC_20231130211038_31391944-870-TWDEP.txt ****0000004521**** AXPZ20 KNHC 302109 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Thu Nov 30 2023 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... The monsoon trough extends from the coast of Costa Rica near 09N84W to low pressure near 08.5N114W 1008 mb to 09N125W. The ITCZ continues from 09N125W to beyond 05N140W. Scattered moderate to isolated strong convection is noted from 06N to 12N between 87W and 107W, and around the low pressure from 05N to 12N between 108W and 122W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Moderate to fresh N-NW winds are noted N of 27N and W of Isla Guadalupe, while light winds prevail between 23N and 27N. Seas to 9 ft are noted N of 28N between 120W and 125W in NW swell. Another area of moderate to fresh winds prevail S of 23N. Seas are 4 to 6 ft in fading NW swell across the Baja waters. Light to gentle winds are noted in the Gulf of California with seas to 4 ft. Light to gentle winds are elsewhere over the discussion waters between Cabo Corrientes and Tehuantepec, where seas are in the 4-6 ft range. Pressure gradient from the high pressure across the Gulf of Mexico continues to weaken. Light to gentle winds continue across the Gulf of Tehuantepec but diminishing in coverage with seas to 5 ft. For the forecast, surface ridging will prevail across the Baja California offshore waters through the next few days, supporting moderate to fresh NW winds across the Baja offshore waters through Fri. NW swell across the Baja California northern will reach as far south as 25N, bringing seas between 8 to 10 ft through early Sat. This swell will linger across the far northern Baja California offshore waters through the weekend and into early next week. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh to strong E-NE gap winds are over the Papagayo region and extends to near 92W, and moderate offshore winds extending across the waters offshore of northern Nicaragua and the Gulf of Fonseca. Seas across this area are 5 to 7 ft. Light to gentle offshore winds are elsewhere north of the monsoon trough. Light to gentle SW winds are elsewhere S of the monsoon trough. Seas of 4-7 ft prevail across the area waters in mixed swell. For the forecast, moderate to fresh winds are expected across and well downstream of the Gulf of Papagayo region through tonight, pulsing to strong speeds at night. Moderate W to NW swell across the regional waters will continue tonight. Moderate southerly swell will approach the Galapagos Islands and Ecuador offshore waters late weekend and into early next week. ...REMAINDER OF THE AREA... High pressure NW of the area waters extends across waters N of 18N. The pressure gradient between this area of high pressure and the monsoon trough and ITCZ is supporting fresh to strong winds N of the monsoon trough/ITCZ to 25N and W of 120W. Gentle to moderate winds are noted N of 25N. A low pres along the monsoon trough near 09N114W is supporting fresh to strong winds from 05N to 11N between 112W and 115W, with seas to 9 ft. Light to gentle winds are N of 25N, while gentle to moderate winds are noted S of the monsoon trough/ITCZ. NW swell dominates the discussion waters W of 120W, with seas in the 8-9 ft range in fading NW swell. Seas of 6-7 ft are noted elsewhere. For the forecast, the pressure gradient will tighten across the area supporting fresh to strong NE to E winds S of 25N through the weekend. The low pres along the monsoon trough will dissipate by Fri. NW swell across the waters from 12N and 23N will continue to move westward across the waters through the next few days while expanding in area. The NW swell impacting waters N of 28N between 120W and 125W will shift eastward towards the Baja California waters over the next few days, lingering through the weekend. Swell impacting waters S of 10N will subside by the weekend. $$ ERA ########################### END OF MESSAGE SET ############################