Tropical Weather Discussion
Issued by NWS
Issued by NWS
026 AXNT20 KNHC 292227 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0015 UTC Sun Nov 30 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 1800 UTC surface analysis and satellite imagery through 2225 UTC. ...SPECIAL FEATURES... Central Atlantic Significant Swell: A surface trough, currently analyzed from 15N to 25N along 45W, will merge with another surface trough currently analyzed from 08N to 15N along 50W. The combined trough will advance westward across the tropical and subtropical central Atlantic, and bring fresh to strong E winds across most of the waters from 15N to 30N east of 60W through Monday. These winds will build seas to 8-12 ft in the described area by Monday. Late on Monday, winds and seas will begin to diminish as the trough weakens and continues westward to 65W. This pattern is partly associated with a broad upper level trough across the central Atlantic. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the eastern Atlantic through the coast of Sierra Leone near 07N11W and continues to 05N20W. The ITCZ extends from 05N20W to 07N48W. A few showers are seen near these boundaries. GULF OF AMERICA... Strong high pressure centered over the eastern United States dominates the Gulf of America. The pressure gradient between this ridge and lower pressures associated with the stationary front in the NW Caribbean and SW North Atlantic result in fresh to strong NE winds in the SE Gulf and Florida Straits. Seas in these waters are 5-8 ft. In the western Gulf, moderate to fresh southerly winds and seas of 5-7 ft are noted west of 94W. Elsewhere, light to gentle winds and moderate seas prevail. For the forecast, the winds in the SE Gulf will diminish Sun as the aforementioned front dissipates. In the NW Gulf, fresh to locally strong SE winds an approaching cold front over Texas. This front will move offshore Mon, stall Mon night into Tue, when a low pressure will form off Texas and move NE into the SE U.S. Thereafter, the front will move SE farther into the basin, but then stall into late week as another low forms over Texas. CARIBBEAN SEA... A stationary front is draped across the NW Caribbean, extending from central Cuba to Belize. Divergence aloft and tropical moisture result in scattered showers over the central Caribbean, also affecting eastern Cuba and Hispaniola. Moderate to locally fresh easterly trade winds and moderate seas are occurring in the central, SW and eastern Caribbean Sea. Elsewhere, moderate or lighter winds and moderate seas prevail. For the forecast, fresh NE winds and locally rough seas in the far NW basin will diminish tonight as a stationary front dissipates. Elsewhere, high pressure in the Central Atlantic will contribute to moderate to fresh trades, which will diminish for the start of next week as the high shifts east. ATLANTIC OCEAN... Please see the SPECIAL FEATURES section for information on a Significant Swell Event in the Central Atlantic. A stationary front extends from Bermuda to the central Bahamas and central Cuba. Scattered showers and tstorms are along the front. Strong high pressure centered over North Carolina continues to force fresh to strong NE winds to the west of the front across the Bahamas to the Straits of Florida. Seas are 8-10 ft from 25N to 29N between 66W and 76W. Seas are 4-8 ft elsewhere in the W Atlantic. Elsewhere across the basin, aside from the SPECIAL FEATURE, trades are gentle to moderate with 4-7 ft seas. For the forecast west of 55W, the aforementioned front will dissipate through Sun, and high pressure north of the front will shift eastward, allowing winds and seas to diminish. Another weak front will stall off the northeast Florida coast Mon, then lift northward Mon night. Expect southerly winds and building seas north of 29N and west of 75W Tue as low pressure moves from the northern Gulf to the Carolinas. Looking ahead, these strong southerly winds will shift eastward north of 28N ahead of a cold front moving off the northeast Florida coast Tue night into Wed. This front will reach from Bermuda to South Florida by late Wed. Meanwhile, strong winds and rough seas will accompany a trough moving westward into the waters northeast of the Leeward Islands Sun through Tue night. $$ Delgado