


Tropical Weather Discussion
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Issued by NWS
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689 AXNT20 KNHC 021101 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 1215 UTC Tue Sep 2 2025 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. ...TROPICAL WAVES... An eastern Atlantic tropical wave is along 25W, from 03N to 18N, moving westward at 10-15 kt. The broad disturbance is producing scattered moderate and isolated strong convection from 04N to 15N between 20W and 35W. Environmental conditions appear conducive for gradual development of this system, and a tropical depression could form by the middle or latter part of this week. This system is expected to move westward to west-northwestward at around 15 kt across the eastern and central tropical Atlantic throughout the week. There is a low chance of tropical cyclone formation in the next 48 hours, and a medium chance of formation in the next 7 days. Refer to the latest NHC Tropical Weather Outlook at www.hurricanes.gov for more details. A tropical wave is in the central Atlantic along 52W, from 05N to 19N, moving westward at 10-15 kt. The wave is embedded in a dry Saharan airmass that is suppressing the development of showers and thunderstorms near the wave axis. A tropical wave is in the western Caribbean along 86W, south of 19N, moving westward at 5-10 kt. There is no significant convection associated with this wave at this time. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic through the coast of Mauritania near 19N16W and continues to 11N25W to 09N41W. The ITCZ extends from 09N41W to 10N49W and then from 10N53W to 10N61W. Aside from the convection associated with the tropical waves, scattered moderate convection is from 07N to 11N between 15W and 25W, from 06N to 13N between 35W and 50W, and from 08N to 13N between 51W and 60W. ...GULF OF AMERICA... A stationary front extends from Everglades City, Florida to 25N90W to Corpus Christi, Texas and continues to generate scattered showers over the NE and NW Gulf offshore waters. Similar shower activity is off Tampico, Mexico. A weak pressure gradient prevails across the region, which support light to gentle variable winds and slight seas basin-wide, except for moderate NE to E winds over the NE Florida coastal waters. For the forecast, the stalled front will remain stationary while it gradually dissipates through today. The front will be a focus for showers and thunderstorms for the north-central and southeast Gulf into mid-week. Elsewhere, the weak gradient in place will maintain mainly gentle to moderate winds and slight to locally moderate seas through Sat night. ...CARIBBEAN SEA... The subtropical ridge north of the islands is forcing moderate to fresh easterly winds in the central Caribbean with periods of locally strong winds off Colombia and in the Gulf of Venezuela. Seas in these waters are moderate in the 4-7 ft range. Moderate or weaker breezes and slight seas are elsewhere. Otherwise, the eastern extension of the monsoon trough is generating heavy showers and tstms over the offshore waters of Colombia and eastern Panama. For the forecast, a tropical wave moving into eastern Honduras and Nicaragua will move west of the basin through this morning. Elsewhere, Atlantic high pressure building behind the tropical wave and in combination with low pressure over northern Colombia will support moderate to fresh trades along with moderate seas across much of the central Caribbean through Sat. Fresh to occasionally strong winds are expected to pulse at night off Colombia and the Gulf of Venezuela. In addition, moderate to locally fresh winds will prevail in the Gulf of Honduras through the forecast period. ...ATLANTIC OCEAN... A stationary front extends across the western Atlantic through 31N73W to a 1009 mb low pressure off Jupiter Island, Florida. Heavy showers and tstms are ahead of the front, affecting the northern and central Bahamas and adjacent offshore waters. Winds west and east of the front are moderate and seas are slight to moderate in the vicinity of the front. The Azores High extends a ridge across the remainder central and eastern subtropical waters and support moderate or weaker winds west of 20W. East of 20W, fresh to locally strong NE winds and rough seas prevail due to a tighter pressure gradient with lower pressure over NW Africa. For the forecast west of 55W, the stationary front will persist through Thu. Expect moderate to fresh NE winds with moderate seas north of the front through this morning. Scattered showers and thunderstorms associated with this frontal boundary will affect the Florida seaboard, and the northern and central Bahamas through Fri. Elsewhere, the Atlantic ridge will dominate the pattern from the central Atlantic through the Bahamas, supporting gentle to moderate breezes and mostly moderate seas. $$ Ramos