--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (NORTH ATLANTIC AREA) MESSAGES T1T2: AX A1A2: NT Date: 2026-10-05 --------------------------------------------------------------------------- Message File: T_AXNT20KNHC050500_C_KWBC_20261005050054_4522426-5647-TWDAT.txt ****0000004659**** AXNT20 KNHC 050500 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0615 UTC Mon Oct 5 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 0500 UTC. ...TROPICAL WAVES... A tropical wave is along 55W, south of 20N, moving westward at 10 to 15 kt. Scattered moderate convection is noted from 10N to 19N between 49W and 60W. A tropical wave is over the western Caribbean with axis along 83W, south of 21N, moving westward at around 15 kt. A few showers and isolated thunderstorms are near the wave axis. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic through the coast of Mauritania near 18N16W and continues southwestward to 07N40W. The ITCZ extends from 07N40W to 11N53W. Aside from the convection associated with the tropical wave, scattered moderate convection is observed from 07N to 15N and E of 35W. ...GULF OF AMERICA... A stationary front is over the NW Gulf. A weak low pressure of 1010 mb is analyzed near 22N96W. A surface trough extends from the low center to the Big Bend of FL. Fresh to locally strong W to NW winds and moderate to locally rough seas are noted between the trough axis and the coast of Mexico. Scattered showers and thunderstorms are associated with these features. Similar convective activity is also noted over the NE Gulf. Numerous moderate to strong convection is affecting the Yucatan Peninsula. A ridge extending from the western Atlantic into Florida is supporting moderate to locally fresh SE to S winds and moderate seas across much of the central and eastern Gulf. For the forecast, fresh to locally strong N winds will follow a trough along the E Mexican offshores through Tue. Weak surface ridging over the NE Gulf will continue to shift E through late Tue ahead of a slowly moving front, which will stall over the northern Gulf Mon through Tue night. Fresh NE to E winds and building seas are forecast N of the front. Looking ahead, broad low pressure may develop over the far southwest Gulf Wed night into Thu. Although environmental conditions are expected to be only marginally conducive, some slow development is possible and a tropical depression could form late this week while the system drifts northward through Fri. Regardless of development, moderate to fresh winds and building seas are forecast over the western Gulf during that period. ...CARIBBEAN SEA... An upper-level trough over the Windward Passage and Hispaniola is helping to induce widely scattered showers and thunderstorms over these regions. High pressure north of the area, combined with the Colombian Low is supporting moderate to fresh easterly trade winds across much of the Caribbean Sea with moderate seas. Locally strong trades are seen offshore NW Colombia. For the forecast, weak ridging over the western Atlantic will support moderate to fresh E to SE winds across the northwest and central Caribbean through Tue morning, except offshore Colombia and the Gulf of Venezuela where fresh winds will pulse to strong speeds at night through Mon. Afterward, a cold front will move across the waters N of the region, further weakening the pressure gradient and supporting mainly gentle to moderate winds across the basin. ...ATLANTIC OCEAN... An area of showers, with embedded thunderstorms is located N of Puerto Rico, and is associated with an upper-level low. A surface trough is analyzed over the central Atlantic, and extends from 31N32W to 28N38W to 29N44W. Scattered moderate convection is along the trough axis. The remainder of the Atlantic forecast waters is dominated by high pressure producing mainly gentle to moderate winds and moderate seas. Locally fresh NE winds are seen SW of the Canary Islands. For the forecast west of 55W, weak ridging over the western Atlantic across Bermuda will continue to shift eastward through Mon ahead of a cold front that will stall from Bermuda to NE Florida by midweek. Fresh to strong NE winds and rough seas will follow the front, but remain off NE Florida through Wed. Gentle to moderate winds and slight seas will persist elsewhere through Fri. $$ Adams ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXNT20KNHC051022_C_KWBC_20261005102256_4522426-5665-TWDAT.txt ****0000005280**** AXNT20 KNHC 051022 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1215 UTC Mon Oct 5 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 1010 UTC. ...TROPICAL WAVES... A tropical wave is along 57W, south of 20N, moving westward at 10 to 15 kt. Scattered moderate convection is noted from 08N to 21N between 49W and 62W. A tropical wave is over the western Caribbean with axis along 84W, south of 21N, moving westward at around 15 kt. A few showers associated with the wave are over the NW and SW Caribbean. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic through the coast of Mauritania near 18N16W and continues southwestward to 08N34W. The ITCZ extends from 07N40W to 09N54W. Aside from the convection associated with the tropical wave, scattered moderate isolated strong convection is observed from 08N to 19N between 14W and 30W. ...GULF OF AMERICA... A stationary front extends from southern Alabama to SE Louisiana to southern Texas coastal waters. A pre-frontal trough extends from northern Florida to SE Louisiana coastal waters to a 1011 mb low offshore Tampico, which is generating scattered heavy showers and tstms over the Bay of Campeche and NE Mexico offshores. Similar shower activity is over the NE Gulf and along the NW Gulf coastal waters. Fresh to near gale-force NE winds are behind the front over the NW Gulf coastal waters while moderate or weaker winds are elsewhere over the cental and SE Gulf. Recent altimeter and buoy data show 2 to 5 ft seas basin wide, likely higher in the areas of strong convection. For the forecast, fresh to locally strong N winds will follow the trough along the E Mexican offshores through Tue. Weak surface ridging over the NE Gulf will slowly shift E through late Tue ahead of a front stalling over the northern Gulf today through Wed before it starts to weaken Wed night. Fresh NE to E winds and building seas are forecast N of the front. Looking ahead, broad low pressure may develop over the far southwest Gulf Tue night into Wed. Although environmental conditions are expected to be only marginally conducive, gradual development of this system is possible and a tropical depression could form by the second half of this week while it initially drifts eastward before turning northward. Regardless of development, fresh to locally strong winds and rough seas are forecast over portions of Gulf Wed through Sat night. ...CARIBBEAN SEA... An inverted trough over the central Caribbean continue to support scattered showers and isolated tstms in the Windward Passage, the lee side of E Cuba adjacent waters and the SW basin. Surface high pressure over the central subtropical Atlantic continue to support moderate to fresh trades over the central Caribbean, and moderate or weaker winds elsewhere. Seas with these winds are moderate to 7 ft while slight to moderate seas are elsewhere. For the forecast, weak ridging over the western Atlantic will support moderate to fresh E to SE winds across the northwest and central Caribbean through Tue morning, except offshore Colombia and the Gulf of Venezuela where fresh winds will likely pulse to strong speeds at night through tonight. Afterward, a cold front will move across the waters N of the region, further weakening the pressure gradient and supporting mainly gentle to moderate winds across the basin through Thu. High pressure is forecast to develop to the SE of Bermuda Thu night, which will drift westward through Fri evening before dissipating. This will increase the easterly winds over the central Caribbean to fresh speed Fri. ...ATLANTIC OCEAN... Scattered showers and isolated tstms prevail over the southern Bahamas and adjacent waters, including the Great Bahama Bank. The remainder of the Atlantic forecast waters is dominated by surface ridging anchored by high pressure near the Azores, which is supporting moderate or weaker winds and slight to moderate seas. Otherwise, the remnants of a front are analyzed as a surface trough that extends from 31N32W to 27N39W to 29N44W. Scattered heavy showers and tstms are within 150 nm ahead of the trough. For the forecast west of 55W, weak ridging over the western Atlantic across Bermuda will continue to shift eastward through today ahead of a cold front that will stall from Bermuda to NE Florida Tue night into Wed. Fresh to strong NE winds and rough seas will follow the front, but remain off NE Florida through Wed night. Moderate or weaker winds and slight seas will persist elsewhere through Fri. Otherwise, by Fri evening, high pressure developing SE of Bermuda and shifting westward will increase easterly winds S of 22N to moderate to fresh speeds. $$ Ramos ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXNT20KNHC051751_C_KWBC_20261005175228_31523192-5651-TWDAT.txt ****0000006107**** AXNT20 KNHC 051751 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1815 UTC Mon Oct 5 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 1751 UTC. ...SPECIAL FEATURES... Southwestern Gulf of America (AL92): A trough of low pressure over the southwestern Gulf of America is producing disorganized showers and thunderstorms. Although environmental conditions appear to be marginally conducive, gradual development is becoming more likely, and a tropical depression is expected to form during the middle portion of the week. This system is expected to drift eastward over the next couple of days, before it turns northward. It is too early to determine the specific impacts to the northern Gulf Coast, but interests there should closely monitor the progress of this system. Formation chance through 48 hours is medium. Formation chance through 7 days is high. ...TROPICAL WAVES... A tropical wave is along 58W, south of 20N, moving westward at 10 to 15 kt. Scattered moderate convection is noted from 10N to 17N between 56W and 61W. A tropical wave is over the western Caribbean with axis along 84.5W, south of 21N, moving westward at around 15 kt. A few showers associated with the wave are over the SW Caribbean. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic through the coast of Mauritania near 18N16W and continues southwestward to 08N41W. The ITCZ extends from 08N41W to 11N55W. Aside from the convection associated with the tropical wave, scattered moderate isolated strong convection is observed from 08.5N to 19N and east of 34W. ...GULF OF AMERICA... Please read the Special Features section above for more information on AL92. A frontal boundary extends from Biloxi, Mississippi to SE Louisiana to Port Mansfield, Texas. A trough extends from northern Florida to SE Louisiana coastal waters to 19.5N94.5W, which is generating numerous showers and scattered thunderstorms west of 90.5W. Similar convective activity is over the NE Gulf coastal waters. Moderate to fresh N to NE winds are behind the front over the NW Gulf coastal waters, while fresh to strong winds are west of the trough. Seas within these winds are 4 to 6 ft. Moderate or weaker winds prevail elsewhere over the central and SE Gulf along with 2 to 4 ft seas. For the forecast, fresh to locally strong N winds will follow a trough along the E Mexican offshores through Tue. Weak surface ridging over the NE Gulf will slowly shift eastward through late Tue ahead of a front stalling over the northern Gulf today through Wed before it starts to weaken Wed night. Fresh NE to E winds and building seas are forecast N of the front. Looking ahead, gradual development of a trough in the southwestern Gulf is becoming more likely, and a a tropical depression is likely to form during the middle or latter portion of the week. This system is expected to drift eastward over the next few days, before it turns northward. Regardless of development, fresh to locally strong winds and rough seas are forecast over portions of Gulf Wed through Sat night. ...CARIBBEAN SEA... An inverted trough over the central Caribbean continue to support isolated showers and thunderstorms in the Windward Passage, the lee side of E Cuba adjacent waters and the SW basin. Surface high pressure over the central subtropical Atlantic continue to support moderate to fresh trades over the central Caribbean, except for locally fresh winds north of Colombia. Moderate or weaker winds prevail elsewhere. Seas within the locally strong winds are moderate to 7 ft, while slight to moderate seas prevail elsewhere. For the forecast, weak ridging over the western Atlantic will support moderate to fresh E to SE winds across the northwest and central Caribbean through Tue morning, except offshore Colombia and the Gulf of Venezuela where fresh winds will likely pulse to strong speeds at night through tonight. Afterward, a cold front will move across the waters N of the region, further weakening the pressure gradient and supporting mainly gentle to moderate winds across the basin through Thu. High pressure is forecast to develop to the SE of Bermuda Thu night, which will drift westward through Fri evening before dissipating. This will increase the easterly winds over the central Caribbean to fresh speed Fri. ...ATLANTIC OCEAN... Scattered showers and isolated thunderstorm prevail over the southern Bahamas and adjacent waters, including the Great Bahama Bank. The remainder of the Atlantic forecast waters is dominated by surface ridging anchored by high pressure north of the Azores, which is supporting moderate or weaker winds and slight to moderate seas. Otherwise, the remnants of a front are analyzed as a surface trough that extends from 31N33W to 27N35.5W to 27N46W. Scattered to numerous showers and thunderstorms are present along the trough, with the strongest convection depicted north of 26.5N between 30W and 37W. For the forecast west of 55W, weak ridging over the western Atlantic will continue to shift eastward through today ahead of a cold front that will stall from Bermuda to NE Florida Tue night into Wed. Fresh to strong NE winds and rough seas will follow the front, but remain off NE Florida through Wed night. Moderate or weaker winds and slight seas will persist elsewhere through Fri. Otherwise, by Fri evening, high pressure developing SE of Bermuda and shifting westward will increase trades S of 22N to moderate to fresh speeds. $$ KRV ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXNT20KNHC052037_C_KWBC_20261005203829_31523192-5662-TWDAT.txt ****0000006472**** AXNT20 KNHC 052037 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0015 UTC Tue Oct 6 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 2030 UTC. ...SPECIAL FEATURES... Southwestern Gulf of America (Invest AL92): A trough of low pressure over the southwestern Gulf of America is producing disorganized showers and thunderstorms. Although environmental conditions appear to be marginally conducive, gradual development is becoming more likely, and a tropical depression is expected to form during the middle portion of the week. This system is expected to drift eastward over the next couple of days, before it turns northward. It is too early to determine the specific impacts to the northern Gulf Coast, but interests there should closely monitor the progress of this system. Formation chance through 48 hours and the next seven day is high. ...TROPICAL WAVES... A tropical wave is along 60W, south of 20N, moving westward at 10 to 15 kt. Scattered moderate convection is noted from 10N to 15N between 56W and 62W. A tropical wave is over the western Caribbean with axis along 85W, south of 21N, moving westward at around 5 to 10 kt. Scattered moderate convection is active over Nicaragua and Costa Rica. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic at 17N16W and extends to 07N40W. The ITCZ extends from 07N40W to 10N56W. Scattered moderate convection is evident from 11N to 15N between 18W and 24W. ...GULF OF AMERICA... Please read the Special Features section above for more information on Invest AL92. A cold front extends from the Florida Big Bend area near 30N84W to 28N93W, where it becomes a stationary front and reaches to the mouth of the Rio Grande near 26N97W. Farther south a trough extends from 28N92W to the 1010 mb low pressure (Invest AL92) near 22N96W to 19N93W. Scattered showers and thunderstorms extend from 20N to 27N between 90W and 97W. A recent scatterometer satellite pass indicated fresh to strong N to NE winds north and west of the front along the coasts of Texas and Mexico as far south as Veracruz. Gentle to moderate breezes are noted elsewhere. Seas are 3-5 ft off Texas, and 2-4 ft elsewhere. For the forecast, fresh to locally strong N winds will follow a trough along the E Mexican offshores through Tue. Weak surface ridging over the NE Gulf will slowly shift eastward through late Tue ahead of a front stalling over the northern Gulf today through Wed before it starts to weaken Wed night. Fresh NE to E winds and building seas are forecast N of the front. Looking ahead, gradual development of a trough in the southwestern Gulf is becoming more likely, and a a tropical depression is likely to form during the middle or latter portion of the week. This system is expected to drift eastward over the next few days, before it turns northward. Regardless of development, fresh to locally strong winds and rough seas are forecast over portions of Gulf Wed through Sat night. Mariners should monitor the latest forecasts from the National Hurricane Center. ...CARIBBEAN SEA... Divergent flow aloft near an upper low centered over Jamaica is supporting afternoon showers and thunderstorms across Haiti, Jamaica, eastern Cuba and adjacent waters south of Haiti to 15N. Broad ridging over the western Atlantic is supporting fresh E winds over the south-central Caribbean, as noted in recent scatterometer satellite data. A concurrent altimeter pass indicated seas to 8 ft off Colombia in this area. Mostly moderate E to SE winds and 3-5 ft seas are noted elsewhere across the Caribbean. Fresh E winds and seas to 7 ft are likely ongoing over Atlantic waters just east of the southern Leeward and northern Windward Islands, where scattered showers and thunderstorms are active. For the forecast, weak ridging over the western Atlantic will support moderate to fresh E to SE winds across the northwest and central Caribbean through Tue morning, except offshore Colombia and the Gulf of Venezuela where fresh winds will likely pulse to strong speeds at night through tonight. Afterward, a cold front will move across the waters N of the region, further weakening the pressure gradient and supporting mainly gentle to moderate winds across the basin through Thu. High pressure is forecast to develop to the SE of Bermuda Thu night, which will drift westward through Fri evening before dissipating. This will increase the easterly winds over the central Caribbean to fresh speed Fri, then moderate to fresh Fri night through Sat night. ...ATLANTIC OCEAN... A few showers and thunderstorms are active off Jacksonville, Florida, along a cold front reaching from 1014 mb low pressure near 31N79W to 30N81W. Ridging dominates the remainder of the western Atlantic, anchored by 1018 mb high pressure east of Bermuda near 31N58W. The pattern is supporting gentle to moderate E to SE winds and 3-5 ft west of 50W, except for an area of fresh winds and 7 ft seas east of Martinique. Farther east, a few showers and thunderstorms are active along a trough reaching from weak 1014 mb low pressure near 32N35W to 26N40W. This is breaking up the subtropical ridge normally in place there, supporting light to gentle breezes across the north Atlantic basin south of 31N and east of 50W, with 3-5 ft seas in a mix of swell. For the forecast west of 55W, a cold front will move slowly E over the area tonight and early Tue, stalling from Bermuda to NE Florida Tue night into Wed. Fresh to strong NE winds and rough seas will follow the front, remaining off NE Florida through Wed night. Moderate or weaker winds and slight seas will persist elsewhere through Fri. Otherwise, by Fri evening, high pressure developing SE of Bermuda and shifting westward will increase trades S of 22N to moderate to fresh speeds, continuing Sat and Sat night. $$ Christensen ########################### END OF MESSAGE SET ############################