--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (NORTH ATLANTIC AREA) MESSAGES T1T2: AX A1A2: NT Date: 2026-10-19 --------------------------------------------------------------------------- Message File: T_AXNT20KNHC190454_C_KWBC_20261019045553_21889468-5730-TWDAT.txt ****0000008375**** AXNT20 KNHC 190454 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0615 UTC Mon Oct 19 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 0430 UTC. ...SPECIAL FEATURES... Gulf of America Gale Warning: A cold front has stalled tonight across the southern Gulf, from the Straits of Florida to near 22N90W to the central Bay of Campeche and into the coast of Mexico near 93W. Satellite imagery suggests that the portion of the front W of 90W has been drifting westward in recent hours. 1026 mb high pressure has moved into far NE Mexico, while 1035 mb high pressure is across the NE U.S. extending a ridge southward across the basin. The pressure gradient south of these highs is forcing gale-force NW to N winds and very rough seas of 14-20 ft across the SW waters of the Gulf, S of 21N between the front and the Mexican coastline, while fresh to strong E-NE to NE winds and seas of 8 to 12 ft prevail across most of the remainder of the basin N of the front. The front will remain generally stationary and weaken into Tue. Gale winds and very rough seas to 15 ft will prevail in the SW basin through sunrise, then slowly diminish through Tue night. Atlantic Gale Warning: The aforementioned cold front is eastward across the Atlantic waters N of 27N, and extends through 31N71.5W to 27N73W then becomes nearly stationary through the NW Bahamas and into the Straits of Florida. W of the cold front, N-NE to NE winds of 20 to 30 kt prevail, with winds near gale-force and frequent gusts to 40 kt N of 29N and W of 73W, where a Gale Warning is in effect. Very rough seas of 12 to 16 ft prevail across these waters. The front is associated with a deep low pressure system across the western Atlantic currently near 32N71W. The low is expected to lift northward overnight, which will slow the forward progress of the front. Winds west of the front are expected to gradually diminish later tonight, with gales ending by morning. Please read the latest High Seas Forecast issued by the National Hurricane Center under AWIPS/WMO headers FZNT02 KNHC/HSFAT2 or at website https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml for further details. ...MONSOON TROUGH/ITCZ... The monsoon trough extends across western Africa to the coast of Guiea-Bissau near 12N16W and extends about 60 nm to the southwest. The ITCZ extends from 07N21W to 06N36W to 09.5N45W to the coast of Guyana near 06.5N58W. Scattered to locally numerous moderate isolated strong convection is occurring from 09N to 16.5N between 35W and 52W. ...GULF OF AMERICA... See the Special Features section above for information on the Gale Warning in effect for portions of the southwest basin. Outside of the gales, recent satellite scatterometer data shows strong E-NE winds 20-28 kt E of 92W, and fresh to strong NE to N winds W of 92W and N of 21N. Seas of 8 to 12 ft prevail across most of the basin N of the front, highest SW portions. Scattered showers and thunderstorms are within 60 nm either side of the front. For the forecast, the front will meander about over the Straits of Florida and to the NW Yucatan Peninsula and Bay of Campeche tonight through Mon, then drift to the southeast of the Gulf through Tue as it weakens. Gale-force winds will persist over the SW Gulf offshore Veracruz through early Mon morning, while winds and seas diminish modestly across the remainder of the basin. High pressure behind the front will continue to support fresh NE to E winds mainly over the eastern half of the Gulf through Tue. ...CARIBBEAN SEA... A weakening upper-level trough across the NW Caribbean continues to support scattered to locally numerous moderate isolated strong convection across the Gulf of Honduras and the waters within 150 nm of the NE coasts of Honduras and Nicaragua, while moderate convection is further south across the SW basin in association with the eastern extension of the East Pacific monsoon trough. Stable atmospheric conditions and fair skies prevail across most of the basin elsewhere E of 72W. A weak pressure gradient across the region is yielding only moderate to fresh trades and seas of 4-6 ft seas across the central Caribbean S of 16N between 64W and 78W. Gentle to moderate or weaker winds and seas of 5 ft or less prevail elsewhere. For the forecast, a weak pressure gradient prevails across the region due to a frontal boundary across the Bahamas and the southern Gulf of America, and will maintain moderate to fresh trades in the south-central Caribbean through Wed night and moderate or weaker winds elsewhere. The cold front will likely reach western Cuba and the Yucatan Channel Mon night into Tue where it will remain through Wed before dissipating. Moderate to fresh NE winds and moderate to rough seas will impact the waters of Yucatan Channel and the NW Caribbean through early Wed morning. Moderate to fresh SE winds will develop in the eastern Caribbean on Thu, and prevail through Fri night as surface ridging builds N of the area. ...ATLANTIC OCEAN... See the Special Features section above for information on gales ongoing southwest of Bermuda behind the cold front moving through western Atlantic waters. Recent satellite scatterometer data shows NE to N winds of 30 to 50 kt across a broad area of the western Atlantic to the W of a 1010 mb surface low near 31N71W and an associated frontal zone. Large seas of 12 to 20 ft in N to NE swell prevail across the local waters N of 28N and W of 71W. Recent satellite altimeter data showed seas 13-14 ft in the Gulfstream offshore of Miami and Ft Lauderdale. Seas are 8 to 12 ft elsewhere NW of the front outside of the Bahamas. Scattered to locally numerous moderate isolated strong convection is occurring along and within 180 nm S of the front between 71W and 80W. To the east of this cold front, a deep layered upper low continues across the central Atlantic near 27N51W, and is promoting unstable atmospheric conditions across that area. A pair of surface troughs near this feature, along 60W and 53W are accompanied by scattered moderate convection from 22N to 29N between 48W and 60W. Another more significant surface trough from 31N49W to 23N42W is interacting favorably with the upper low to produce scattered to numerous moderate to strong convection along and within 240 nm E of this surface trough. Fresh to locally strong E to E-SE winds and seas of 7 to 11 ft in mixed N swell and E wind waves are found east of the surface trough to 40W. Moderate winds and seas of 4 to 6 ft prevail near the pair of troughs to the W. To the south of these features, a weak pressure gradient is yielding gentle to moderate easterly winds and seas of 4 to 6 ft between 35W and the Lesser Antilles. A series of 3 low level easterly perturbations in the trade wind flow are producing scattered to locally numerous moderate isolated strong convection from 09N to 16.5N between 35W and 52W. To the E of 35W moderate to fresh NE to E winds generally prevail between the Canary Islands, Africa and 35W, with seas of 4 to 7 ft in NW to N swell. For the forecast west of 55W, the cold front will extend from 31N71W to the central Bahamas and the Straits of Florida by early Mon morning, and from near 31N70W to west-central Cuba by Mon night, where it will weaken before dissipating into midweek. The low pressure system associated with the front near 32N71W will lift northward tonight, allowing winds to gradually diminish behind the front tonight through Mon. Large N to NE swell generated by this low pressure will affect the Atlantic waters W of 68W through Tue night, then subside modestly, then increase again Wed through Fri across the waters W of 65W. $$ Stripling ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXNT20KNHC191057_C_KWBC_20261019105812_38011292-5960-TWDAT.txt ****0000006437**** AXNT20 KNHC 191057 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1215 UTC Mon Oct 19 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 1040 UTC. ...SPECIAL FEATURES... Gulf of America Gale Warning: A stationary front extends across the southern Gulf, from western Cuba to near 22N90W to the central Bay of Campeche. A 1025 mb high pressure is over NE Mexico while 1034 mb high pressure is across the NE U.S. extending a ridge southward across the basin. The pressure gradient south of these highs is forcing gale-force NW to N winds and very rough seas of 12-15 ft across the SW waters of the Gulf, S of 20N between the front and the Mexican coastline, while fresh to locally strong E-NE winds and seas of 8 to 10 ft prevail across most of the remainder of the basin N of the front and E of 94W. The front will remain generally stationary and weaken into Tue. Gale winds and very rough seas to 15 ft will prevail in the SW basin through sunrise, then slowly diminish through Tue night. Atlantic Gale Warning: The aforementioned front transitions to a cold front over western Cuba to the northern Bahamas and connects to a 1009 mb low near 32N71W. West of the cold front, N-NE winds of 20 to 30 kt prevail, with gale-force and frequent gusts to 40 kt N of 29N and W of 71W, where a Gale Warning is in effect. Very rough seas of 12 to 20 ft prevail across these waters. The low is expected to continue to lift northward today, which will slow the forward progress of the front. Winds west of the front are expected to gradually diminish today, with gales ending later this morning. Please read the latest High Seas Forecast issued by the National Hurricane Center under AWIPS/WMO headers FZNT02 KNHC/HSFAT2 or at website https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml for further details. ...MONSOON TROUGH/ITCZ... The monsoon trough extends across western Africa to the coast of Guiea-Bissau near 12N16W and extends about 60 nm to the southwest. The ITCZ extends from 09N21W to 07N38W to 11N44W. Scattered moderate convection is occurring from 07N to 20N between 37W and 60W. ...GULF OF AMERICA... See the Special Features section above for information on the Gale Warning in effect for portions of the southwest basin. Outside of the gales, fresh to strong E-NE winds prevail E of 94W while moderate to locally fresh N-NE winds are W of 94W and N of 22N. Seas of 5 to 10 ft prevail across most of the basin, except in the western Bay of Campeche where gales are still ongoing. Otherwise, scattered showers and thunderstorms are ahead of the front in the Yucatan Channel and eastern Bay of Campeche. For the forecast, fresh to strong NE winds will continue over the eastern Gulf through Tue. The front will slow down over the Straits of Florida and the Yucatan Peninsula today, then drift to the southeast of the Gulf through Tue as it weakens. Gale-force winds will persist over the SW Gulf offshore Veracruz through later this morning. ...CARIBBEAN SEA... An invereted mid-level trough across the NW Caribbean continues to support numerous moderate isolated strong convection offshore Nicaragua and eastern Honduras while moderate convection is in the Yucatan Channel in association with a frontal boundary across the southern Gulf of America. A weak pressure gradient across the region is yielding only moderate to fresh trades and seas of 4-6 ft seas across the central Caribbean S of 16N between 64W and 78W. Gentle to moderate or weaker winds and seas of 5 ft or less prevail elsewhere. For the forecast, a weak pressure gradient across the region due to a frontal boundary across the Bahamas and the southern Gulf of America will maintain moderate to fresh trades in the south- central Caribbean through Wed night and moderate or weaker winds elsewhere. The cold front will likely reach western Cuba and the Yucatan Channel tonight into Tue where it will remain through Wed before dissipating. Moderate to fresh NE winds and moderate to rough seas will likely impact the Yucatan Channel and the NW Caribbean through early Wed morning. Otherwise, moderate to fresh SE winds will develop in the eastern Caribbean on Thu, and prevail through Fri night as surface ridging builds N of the area. ...ATLANTIC OCEAN... See the Special Features section above for information on gales ongoing southwest of Bermuda behind a cold front moving through western Atlantic waters. A cold front extends from a 1009 mb low pressure located N of the forecast area near 32N71W SW to NW Cuba near 23N83W where it stalls to the Bay of Campeche in the Gulf of America. Gust to gale-force winds are N of 29N with fresh to near gale-force N to NE winds elsewhere behind the front along with rough to very rough seas. Scattered moderate convection is ahead of the front to 67W, affecting a portion of the Bahamas and the Great Bahama Bank. Surface ridging from the Azores High prevails elsewhere across the subtropical waters, except over the central region where a broad area of low pressure is generating scattered showers and tstms from 24N to 30N between 35W and 57W. The pressure gradient between the ridge and the broad low pressure is supporting fresh to strong NE to E winds and rough seas to 10 ft in the same region. Elsewhere, moderate or weaker winds and moderate seas prevail. For the forecast west of 55W, a tight pressure gradient between the low and high pressure in the wake of the front will maintain gust to gale-force winds N of 29N between 71W and 81W through later this morning. The front will extend from 31N70W to west- central Cuba by tonight where it will weaken before dissipating into midweek. Marine conditions associated with the front will affect mainly the waters W of 65W through Tue, although seas will linger through Thu. $$ Ramos ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXNT20KNHC191720_C_KWBC_20261019172058_21889468-5783-TWDAT.txt ****0000005843**** AXNT20 KNHC 191720 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1815 UTC Mon Oct 19 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 1700 UTC. ...SPECIAL FEATURES... Atlantic Significant N Swell: A 1007 mb low near 33N72W extends a cold front SE of the low and then southwestward through the central Bahamas to northern Cuba. Scattered moderate convection is occurring along and roughly 50 nm E and SE of the front. Winds behind the front have fallen below gale-force, but strong to near gale-force NW winds persist. Very rough seas of 12-20 ft in N to NE swell are occurring across the waters N of 26N and W of 70W. These very rough seas will gradually expand southward to 25N and W of 70W through this afternoon and evening. Very rough seas will then steadily diminish through Tuesday afternoon and evening, but rough seas of 8-12 ft will persist through midweek. Please read the latest High Seas Forecast issued by the National Hurricane Center under AWIPS/WMO headers FZNT02 KNHC/HSFAT2 or at website https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml for further details. ...MONSOON TROUGH/ITCZ... The monsoon trough extends across western Africa to the coast of Guiea-Bissau near 12N16W and extends to near 10N20W. The ITCZ extends from 10N20W to 08N35W to 11N44W. Scattered moderate convection is occurring from 05N to 10N and E of 25W. ...GULF OF AMERICA... A stationary front extends from northern Cuba across the southern Gulf and into the Bay of Campeche. Scattered moderate convection is occurring along and within 50 nm of the front. Much of the basin N of the front is seeing fresh to strong E to NE winds and 6-8 ft seas prevail, with winds near gale force and seas of 8-12 ft occurring in the far SW Gulf offshore Veracruz. Moderate to fresh E winds and moderate seas are occurring S of the front closer to the Yucatan Channel. For the forecast, a stationary front extends across the Straits of Florida to 23N90W into the central Bay of Campeche. Fresh to strong NW to N winds and rough seas are over the western Gulf S of about 25N, except for near gale-force NW to N winds over the SW Gulf offshore Veracruz. Fresh to strong NE winds will continue over the eastern Gulf through Tue. The near gale-force NW to N winds over the SW Gulf offshore Veracruz will diminish to mostly strong speeds this afternoon. The front will slow down over the Straits of Florida and the Yucatan Peninsula today, then shift southeast of the Gulf through Tue as it weakens. ...CARIBBEAN SEA... An upper level inverted trough over the western Caribbean and the East Pacific monsoon trough extending across the far SW Caribbean are supporting scattered moderate to strong convection generally S of 16N and W of 77W. In the NW Caribbean, showers and thunderstorms are occurring ahead of the stationary front draped across the southern Gulf of America, as well as along a surface trough in the Gulf of Honduras. Elsewhere, moderate to fresh trades and 5-7 ft seas prevail in the central Caribbean, with gentle to moderate trades and 2-5 ft seas elsewhere. For the forecast, a weak pressure gradient across the region due to a frontal boundary across the Bahamas and the southern Gulf of America will maintain moderate to fresh trades in the south- central Caribbean through Wed night and moderate, or weaker winds elsewhere. The cold front will likely reach western Cuba and the Yucatan Channel tonight into Tue, where it will remain through Wed before dissipating. Moderate to fresh NE winds and moderate to rough seas will likely impact the Yucatan Channel and the northwestern Caribbean through early Wed morning. Otherwise, moderate to fresh SE winds will develop in the eastern Caribbean on Thu, and prevail through Fri night as surface ridging builds N of the area. ...ATLANTIC OCEAN... See the Special Features section above for information on significant north swell behind a cold front in the western Atlantic. An upper level low near 24N51W is inducing several surface troughs in the Atlantic from 08N to 31N between 40W and 55W. Scattered moderate convection is occurring from 14N to 29N between 40W and 50W, with scattered showers and thunderstorms W of this area out to 55W. A large swath of fresh to strong winds in broad counterclockwise flow as well as 6-10 ft seas are occurring N of 24N between 40W and 60W. Elsewhere across the Atlantic, gentle to moderate or weaker trades and moderate seas prevail. For the forecast west of 55W, a cold front extends from a 1007 mb low pressure located N of the forecast area near 33N71W southwestward SW to along the coast of Cuba near 23N81W, where it stalls to the eastern Bay of Campeche in the Gulf of America. NW to N winds to near gale-force are NW of the front N of 30N between 71W and 73W along with very rough seas while fresh to strong N to NE winds are elsewhere behind the front along with rough to very rough seas. Winds behind the front will diminish to fresh to strong speeds this afternoon as the gradient slackens. The front will reach from near 31N70W to west-central Cuba by tonight, where it will weaken before it dissipates into Wed. Seas N and NE of the Bahamas will slowly subside through the end of the week. $$ Adams ########################### END OF MESSAGE SET ############################