--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (NORTH ATLANTIC AREA) MESSAGES T1T2: AX A1A2: NT Date: 2026-02-24 --------------------------------------------------------------------------- Message File: T_AXNT20KNHC240544_C_KWBC_20260224054451_16515500-8192-TWDAT.txt ****0000005578**** AXNT20 KNHC 240544 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0615 UTC Tue Feb 24 2026 Tropical Weather Discussion for North America, Central America Gulf of America, Caribbean Sea, northern sections of South America, and Atlantic Ocean to the African coast from the Equator to 31N. The following information is based on satellite imagery, weather observations, radar and meteorological analysis. Based on 0000 UTC surface analysis and satellite imagery through 0455 UTC. ...SPECIAL FEATURES... Large Western Atlantic Northwest Swell: A large set of NW swell has been generated by a deep low pressure area (previously a hurricane force low; now a storm force low) over the NW Atlantic. This NW swell is propagating across the NW discussion waters, with very rough seas of 12-16 ft over the waters W of a line from 31N62W to 26N71W. These very rough seas will shift eastward over the waters N of 26N, reaching as far east as 46W through midweek before subsiding below 12 ft. Large Central Atlantic Northwest Swell: A large set of NW swell, generated by a former storm force low N of the area (currently a gale force low) is bringing very rough seas of 12-16 ft over the waters N of a line from 30N45W to 26N41W to 30N30W. These very rough seas will shift SE through midweek to cover the waters N of 20N and E of 30W before subsiding below 12 ft Thu. Please read the latest NWS High Seas Forecast issued by the National Hurricane Center at website: https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml for more information. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic through the coast of Guinea-Bissau near 12N16W and continues southwestward to 06N21W. The ITCZ extends from 06N21W to 00N33W and to 02S45W. A few showers are noted near the ITCZ. ...GULF OF AMERICA... A 1033 mb high pressure system over the Mississippi Valley extends into the Gulf of America, resulting in fresh to strong northerly winds and rough seas east of 90W. Moderate to locally fresh NE winds and rough seas are found in the Bay of Campeche. Moderate or weaker winds and slight to moderate seas prevail elsewhere. The dry and cold continental airmass moving across the basin sustain widespread stratocumulus clouds south of 25N, while generally clear skies prevail north of 25N. Moisture banking along the eastern flanks of the Sierra Madre Oriental may result in locally heavy rainfall. For the forecast, winds and seas will gradually subside from NW to SE tonight into Tue as the high pressure shifts E-SE and into the Atlantic by early Wed. Fresh to strong southerly return flow will develop across the NW Gulf Tue night and expand across the SW and central Gulf Wed into Thu, ahead of the next cold front forecast to enter the NW Gulf Thu evening. This next front is expected to stall from the Florida Panhandle to the Mexican coastal waters late Fri. ...CARIBBEAN SEA... A cold front eastern from eastern Cuba to Central America. A few showers are noted near the front. Moisture banking against the mountainous terrain in Central America may result in locally heavy rainfall across Honduras, Guatemala and Belize. A pre- frontal trough is producing some showers over Hispaniola. Fresh to locally near gale-force northerly winds and rough seas are occurring behind the front. Meanwhile, moderate to locally fresh easterly trade winds and moderate seas are present in the remainder of the basin south of 15N. Moderate or weaker winds and moderate seas are prevalent north of 15N. For the forecast, the aforementioned front will slide southeastward, reaching NW Hispaniola to SE Nicaragua Tue before stalling Wed from eastern Hispaniola to near the Nicaragau-Costa Rica border. The strong winds and rough seas will gradually diminish Tue night through Wed as the front weakens. Broad high pressure will develop across the central and western Atlantic Thu and Fri and bring a return to fresh to strong trades across the central Caribbean. ...ATLANTIC OCEAN... Please see the SPECIAL FEATURES section for information about Significant Swells in the western and central Atlantic. A strong cold front enters the basin near 31N62W and continues southwestward to the SE Bahamas and eastern Cuba. Strong to near- gale NW winds and very rough seas are N of 25N and W of the front. Moderate to fresh winds, and moderate to rough seas are elsewhere W of the front. Fresh to strong winds, and rough seas are N of 26N and E of the front to 53W. Farther east, a 1025 mb high is centered near 29N45W. Light to gentle winds are in the vicinity of the high center. Moderate to fresh winds prevail S of the high center due to the pressure gradient between this high and lower pressure in the vicinity of the ITCZ. Gentle to moderate winds are noted elsewhere. Moderate to rough seas are elsewhere across the discussion waters. For the forecast west of 55W, the aforementioned front is expected to move southeastward and reach from 31N60W to the NW Dominican Republic Tue morning, while weakening. The front will then stall from near 31N53W to the NE Dominican Republic early Wed, then drift W and dissipate through Thu. High pressure will shift into the Atlantic behind the front Tue night through Wed, and develop a broad ridge across the region Thu and Fri. $$ Delgado ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXNT20KNHC241031_C_KWBC_20260224103153_16515500-8207-TWDAT.txt ****0000006481**** AXNT20 KNHC 241031 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1215 UTC Tue Feb 24 2026 Tropical Weather Discussion for North America, Central America Gulf of America, Caribbean Sea, northern sections of South America, and Atlantic Ocean to the African coast from the Equator to 31N. The following information is based on satellite imagery, weather observations, radar and meteorological analysis. Based on 0600 UTC surface analysis and satellite imagery through 1000 UTC. ...SPECIAL FEATURES... Large Northwest Swell Western Atlantic: Large NW swell has been generated by a deep low pressure area (previously a hurricane force low and now a storm force low) over the NW Atlantic offshore of the Canadian Maritimes. This NW swell is propagating across the NW discussion waters with and behind a strong cold front, with very rough seas of 12-17 ft over the waters N of a line from 31N62W to 26N74W to 31N77W. This large swell producing seas of 12 ft and higher will continue to propagate southeastward over the waters N of 25N, reaching as far east as 50W through Wed morning before subsiding below 12 ft. Large Northwest Swell Central Atlantic: Large NW to N swell, generated by a former storm force low NE of the area (currently a gale force low) is bringing very rough seas of 12-18 ft over the waters N of a line from 31N48W to 26N48W to 25N40W to 30N30W. This swell will shift S and SE through midweek to cover the waters N of 16N and E of 45W through Wed morning before subsiding below 12 ft Wed afternoon. Please read the latest NWS High Seas Forecast issued by the National Hurricane Center at website: https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml for more information. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic through the coast of Guinea-Bissau near 11.5N16W and continues southwestward to 04N19W. The ITCZ extends from 04N19W to the coast of Brazil near 01.5S46W. Scattered moderate convection is noted S of 03N between 06W and 51W. ...GULF OF AMERICA... A 1030 mb high pressure system over the Mississippi Valley extends southward into the Gulf of America and southeastward across S Florida and the Bahamas, behind the recent cold front, resulting in fresh to locally strong northerly winds and rough seas to 12 ft in N swell east of 90W. Moderate to locally fresh NE winds and rough seas to 10 ft in NE swell are found across the SW Gulf and into the Bay of Campeche. Moderate or weaker winds and slight to moderate seas prevail elsewhere. The dry and cold continental airmass moving across the basin sustain widespread stratocumulus clouds south of 26N, while generally clear skies prevail north of 26N. Moisture banking along the eastern flanks of the Sierra Madre Oriental may result in locally heavy rainfall. For the forecast, winds and seas will continue to subside from NW to SE through this evening, as the high pressure shifts E-SE and into the Atlantic by early Wed. Fresh to strong southerly return flow will develop across the NW Gulf Tue night and expand across the SW and central Gulf Wed into Thu, ahead of the next cold front forecast to enter the NW Gulf Thu night. This next front is expected to stall from the Florida Big Bend to the central Mexican coastal waters Sat. ...CARIBBEAN SEA... A cold front extends from NW Haiti through the Windward Passage to the east-central coast of Nicaragua. Scattered showers continue near the front. Moisture banking against the mountainous terrain in Central America may result in locally heavy rainfall across Honduras, Guatemala and Belize. A pre-frontal trough is producing some showers over Hispaniola. Fresh to strong northerly winds and rough seas to 12 ft are occurring behind the front. Meanwhile, moderate to locally fresh trade winds and moderate seas are present in the remainder of the basin south of 15N. Moderate or weaker winds and moderate seas are prevalent north of 15N. For the forecast, the cold front will slide southeastward, reaching north-central Hispaniola to SE Nicaragua Tue afternoon, before stalling on Wed from eastern Hispaniola to near the Nicaragua- Costa Rica border. The strong winds and rough seas will gradually diminish Tue night through Wed as the front weakens. Broad high pressure will develop across the central and western Atlantic Wed through Fri and bring a return to fresh to strong trades across the central Caribbean. ...ATLANTIC OCEAN... Please see the SPECIAL FEATURES section for information about Significant Swell in the western and central Atlantic. A strong cold front enters the basin near 31N60W and continues southwestward to the NW coast of Haiti then through the Windward passage. Scattered showers and isolated thunderstorms prevail within 90 nm E of the front. Strong NW winds and very rough seas in NW swell are N of 25N and W of the front. Moderate to fresh NW to N winds, and moderate to rough seas are elsewhere W of the front. Fresh to strong winds, and rough seas are N of 26N and E of the front to 53W. Farther east, a 1025 mb high is centered near 31N41W and extend a ridge to near 23N65W. Light to gentle winds are in the vicinity of the high center. Fresh to strong trade winds prevail S of 23N to the south of the high center, due to the pressure gradient between this high and lower pressure in the vicinity of the ITCZ. Seas in this region are 7 to 10 ft in NW to N swell. W of the ridge, Strong S to SW winds prevail N of 25N between 53W and the cold front, where seas are 7 to 12 ft in mixed swell. Gentle to moderate winds are noted elsewhere, with moderate to rough seas. For the forecast west of 55W, strong NW winds and very rough seas in NW swell will continue behind the front through this morning before winds begin to slowly diminish. The front is expected to move southeastward and weaken, reaching from 31N58W to the north- central coast of the Dominican Republic Tue evening, then stall from near 29N55W to the NE Dominican Republic Wed, before drifting W and dissipating Thu. High pressure will shift into the Atlantic behind the front Tue night through Wed, and develop a broad ridge across the region Thu through Sat. $$ Stripling ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXNT20KNHC241817_C_KWBC_20260224181855_16515500-8227-TWDAT.txt ****0000006299**** AXNT20 KNHC 241817 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1815 UTC Tue Feb 24 2026 Tropical Weather Discussion for North America, Central America Gulf of America, Caribbean Sea, northern sections of South America, and Atlantic Ocean to the African coast from the Equator to 31N. The following information is based on satellite imagery, weather observations, radar and meteorological analysis. Based on 1200 UTC surface analysis and satellite imagery through 1530 UTC. ...SPECIAL FEATURES... Western Atlantic Significant Swell: Large NW swell generated by a deep low pressure system near Nova Scotia, Canada will maintain very rough seas of 12 to 17 ft from 25N to 31N between 45W and 75W through Wed morning before subsiding below 12 ft on Wed afternoon. Central and Eastern Atlantic Significant Swell: Large NW to N swell generated by a strong low pressure north of the Azores will continue to causing 12 to 18-ft seas from 22N to 30N between 22W and 48W through Wednesday. Please read the latest NWS High Seas and Offshore Waters Forecasts issued by the National Hurricane Center at websites: https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml and https://www.nhc.noaa.gov/marine/offshores.php for more information. ...MONSOON TROUGH/ITCZ... A monsoon trough stays mostly over the African Continent. An ITCZ extends west-southwestward from 01N17W through 01N30W to just north of Sao Luis, Brazil near 01S44W. Scattered moderate to isolate strong convection is seen up to 110 nm along either side of the ITCZ west of 27W. ...GULF OF AMERICA... A 1026 mb high pressure over the northwestern Gulf continues to dominate the entire Gulf. Gentle NE to SE winds and seas of 4 to 7 ft in moderate NE swell are found across the western and north- central Gulf. Moderate with locally fresh N to NE winds and seas at 5 to 8 ft prevail for the rest of the Gulf, including the Florida Straits. The dry and cold continental airmass moving across the basin sustain widespread stratocumulus clouds south of 26N, while generally clear skies prevail north of 26N. Moisture banking along the eastern flanks of the Sierra Madre Oriental may result in locally heavy rainfall. For the forecast, residual rough seas in the southeastern Gulf from the earlier frontal passage will subside through the day. Fresh to strong southerly return flow will develop across the northwestern Gulf tonight and expand across the southwestern and central Gulf Wed into Thu, ahead of the next cold front forecast to enter the northwestern Gulf Thu night. This next front is expected to stall from the Florida Big Bend to the central Mexican coastal waters Sat. ...CARIBBEAN SEA... The southwestern tail of a cold front extends southwestward from central Hispaniola to northeastern Nicaragua. Scattered showers are occurring up to 80 nm along either side of the front. Moisture banking against the mountainous terrain in Central America may result in locally heavy rainfall across Honduras, Guatemala and Belize. A pre-frontal trough is producing some showers near Puerto Rico. Fresh to strong N to NE winds with seas of 8 to 10 ft are evident behind the front, including the Windward Passage. Fresh with locally strong NE to E winds and 5 to 7 ft seas are noted across the southern Gulf, including waters near the ABC Islands. Gentle to moderate easterly winds and seas at 3 to 5 ft prevail elsewhere in the Caribbean Sea. For the forecast, the cold front will slide southeastward, reaching north-central Hispaniola to southeast Nicaragua this afternoon, before stalling on Wed from eastern Hispaniola to near the Nicaragua-Costa Rica border. The strong winds and rough seas will gradually diminish and subside tonight through Wed as the front weakens. Broad high pressure will develop across the central and western Atlantic Wed through Sat, and bring a return to fresh to strong trades across the central basin. Meanwhile, rough seas in mixed northerly swell will prevail in the Tropical North Atlantic through the next several days. ...ATLANTIC OCEAN... Please see the SPECIAL FEATURES section for information about Significant Swells. A strong cold front reaches southwestward from well northeast of Bermuda across 31N58W to beyond central Hispaniola. Scattered moderate convection is seen up to 100 nm along either side of the cold front. Convergent trade winds are triggering scattered heavy showers just north of Belem, Brazil. Refer to the Monsoon Trough/ITCZ section for additional convection and weather in the Atlantic west of 35W. Outside the significant swell area mentioned in the Special Features section, fresh to strong SSW to NW winds and 8 to 11 ft seas are present near the cold front, north of 25N between 50W and the Florida/southern Georgia coast. To the south from 29N to 25N and farther east from 25N to 31N, gentle to moderate ENE to SE winds and 7 to 10 ft seas are evident. For the tropical Atlantic from 03N to 25N and west of 35W, moderate to fresh ENE to SE winds with seas of 7 to 11 ft dominate. For the remainder of the Atlantic west of 35W, gentle to moderate E to SE winds and 6 to 8 ft seas prevail. For the forecast west of 55W, strong NW winds and rough very rough seas in NW swell will continue behind the front through early afternoon before winds begin to slowly diminish. The front is expected to move slowly southeastward and weaken, reaching from 31N58W to the northern coast of the Dominican Republic this evening, then stall from near 29N55W to the northeastern Dominican Republic Wed, before drifting west and dissipating Thu. High pressure will shift into the Atlantic behind the front tonight through Wed, and develop a broad ridge across the region Thu through Sat. A weak front may move off the southeastern U.S. coast late in the weekend. Meanwhile, seas will gradually subside through mid-week, lingering to rough over the Atlantic waters farther east of the Lesser Antilles through the end of the period. $$ Chan ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXNT20KNHC242112_C_KWBC_20260224211356_16515500-8238-TWDAT.txt ****0000005256**** AXNT20 KNHC 242112 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0015 UTC Wed Feb 25 2026 Tropical Weather Discussion for North America, Central America Gulf of America, Caribbean Sea, northern sections of South America, and Atlantic Ocean to the African coast from the Equator to 31N. 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. ...SPECIAL FEATURES... Western Atlantic Significant Swell: Large NW swell propagating across the western waters is supporting very rough seas of 12 to 16 ft over the waters N of a line from 28N73W to 26N68W to 30N55W. These very rough seas will propagate eastward through Wed, reaching the waters near 45W before subsiding below 12 ft. Central and Eastern Atlantic Significant Swell: Large NW swell propagating across the central and eastern waters is supporting very rough seas of 12 to 18 ft over the waters N of a line from 20N41W to 30N22W. This swell will continue to spread eastward over the remainder of the eastern Atlantic waters N of 20N through midweek. Very rough seas will linger over these far eastern waters through the end of the week. Please read the latest NWS High Seas Forecast issued by the National Hurricane Center at websites: https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml for more information. ...MONSOON TROUGH/ITCZ... The monsoon trough stays mostly over the African Continent. The ITCZ extends west-southwestward from 02N15W to 02N25W to 01S44W. Scattered moderate to isolate strong convection is noted from 01S to 03N between 27W and 43W. ...GULF OF AMERICA... High pressure dominates the Gulf waters, anchored by a 1028 mb high centered over the NE Gulf near 29N86W. Light winds are in the vicinity of the high center. Elsewhere, winds are in the gentle to moderate range. Seas are in the 6-7 ft range SE of a line from south Florida to the SW Gulf, and 3-5 ft elsewhere. For the forecast, rough seas in the far SE Gulf and the Yucatan Channel will subside through the evening. Fresh to strong southerly return flow will develop across the NW Gulf tonight and expand across the SW and central Gulf Wed into Thu, ahead of the next cold front forecast to enter the NW Gulf Thu night. This next front is expected to stall from the Florida Big Bend to the central Mexican coastal waters Sat, dissipating by Sun as high pressure returns. ...CARIBBEAN SEA... A stationary front extends from SW Haiti to NE Nicaragua. Behind the front, strong N winds and rough seas prevail. Fresh to strong winds are off the coast of Colombia, with seas in the 6-7 ft range. Elsewhere east of the front, gentle to moderate winds, and seas of 3-5 ft prevail. For the forecast, the front will gradually dissipate through mid- week. The strong winds and rough seas will gradually diminish and subside tonight through Wed as the front weakens. Broad high pressure will develop across the central and western Atlantic Wed through Sat and bring a return to fresh to strong trades across the central Caribbean. Meanwhile, rough seas in mixed northerly swell will prevail in the Tropical N Atlantic through the next several days. ...ATLANTIC OCEAN... Please see the SPECIAL FEATURES section for information about Significant Swell in the western Atlantic, and another Significant Swell in the central and eastern Atlantic. A weakening cold front extends from SE of Bermuda near 31N57W southwestward to the N-central coast of the Dominican Republic. Fresh to strong winds are N of 29N and west of the front to 70W. Moderate to fresh winds are elsewhere W of the front. Rough to very rough seas in NW to N swell is behind the front. Fresh to strong winds are N of 25N within 180 nm east of the front. Farther east, a cold front enters the waters near 31N19W and extends to 27N28W. The remainder of the discussion waters are dominated by high pressure, anchored by a 1028 mb high centered near 31N40W. Light winds are in the vicinity of the high center. Moderate to fresh winds dominate the remainder of the discussion waters. Aside from the very rough seas 12 ft or greater discussed in the special features section above, rough seas greater than 8 ft cover the much of the waters W of a line from the SE Bahamas to 27N55W. Rough seas are also E of 55W to a line from 00N44W to 31N20W. Elsewhere moderate seas prevail. For the forecast west of 55W, the front is expected to move slowly southeastward and continue to weaken, stalling from near 29N55W to the NE Dominican Republic Wed, before drifting W and dissipating Thu. High pressure will shift into the Atlantic behind the front tonight through Wed, and develop a broad ridge across the region Thu through Sat. A weak front may move off the SE U.S. coast late in the weekend. Meanwhile, seas will gradually subside through mid-week, lingering to rough over the SE waters through the end of the period. $$ AL ########################### END OF MESSAGE SET ############################