


Tropical Weather Discussion
Issued by NWS
Issued by NWS
474 AXNT20 KNHC 022306 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0015 UTC SUN Aug 3 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 2230 UTC. ...TROPICAL WAVES... A tropical wave is near 67W from 22N southward across Puerto Rico to central Venezuela, moving west at 15 to 20 kt. Scattered moderate isolated strong convection prevails across the northern portions of the wave and into the Atlantic, from 16.5N to 26N between 63W and 70W. A sharp surface trough extends from the Atlantic offshore waters of Puerto Rico to near 26N64W in association with this wave. A tropical wave is in the central Caribbean near 77W from 19N southward, and moving west near 15 kt. No significant convection is depicted at this time in associated with this wave, except for inland Colombia and Panama. A tropical wave is in the NW Caribbean near 86W from 20N southward across Honduras, Nicaragua and into the eastern Pacific. The wave is moving west at near 15 kt. Scattered moderate isolated strong convection is occurring over land across the Yucatan Peninsula and coastal Honduras. ...MONSOON TROUGH/ITCZ... A monsoon trough enters the Atlantic near 18.5N16W, and extends southwestward to 11.5N27.5W to 06N45W. The ITCZ continues westward from 06N45W to 08N58W. Scattered moderate convection is occurring near and south of the monsoon trough from 06N to 15N between 30W and West Africa. Scattered moderate convection is found within 60 nm of the monsoon trough and ITCZ west of 40W. Scattered strong convection is occurring near the eastern end of the East Pacific monsoon trough south of 10N between 75W and 82.5W. ...GULF OF AMERICA... A stationary front snakes across Georgia and southern Alabama to a 1016 mb low pressure center along the Mississippi coast near 30.5N89W, then continues across the Louisiana coastal waters to SE Texas just west of Galveston. Broad low level cyclonic flow south of the front is leading to convergence and scattered moderate convection dotting the waters north of 23N to the front between 88W and 95W. A 1020 mb high over the central Gulf is supporting light to gentle winds and seas of 1 to 3 ft for most of the Gulf, with strong winds and seas near the front. For the forecast, a frontal boundary will meander across the northern Gulf region through at least Tue, generating scattered to numerous showers and thunderstorms. Wind and seas will be higher near thunderstorms. A weak low pressure is forecast to persist along the front in the vicinity of SE Louisiana. Elsewhere, a weak ridge will prevail supporting mostly gentle to moderate winds and slight to moderate seas. Pulsing fresh E winds are likely at night north and west of the Yucatan Peninsula, including the eastern Bay of Campeche, Mon night through Thu night as a trough develops there daily and drifts westward. ...CARIBBEAN SEA... Three tropical waves are moving across the basin, with the most significant weather accompanying the wave across Puerto Rico, where scattered showers and thunderstorms prevail across the NE Caribbean, north of 16.5N from the Virgin Islands to Hispaniola. Strong afternoon convection can be seen across the Greater Antilles and western Jamaica, however, skies are generally fair elsewhere over water. For more information about the tropical waves, refer to the TROPICAL WAVES section above. The resultant pressure gradient between the 1020 mb Atlantic high pressure located northeast of the Bahamas and the Colombian Low continue to support fresh to strong winds over the central and SW Caribbean south of 16N, with moderate to rough seas to 10 ft within the strongest winds. Moderate to fresh E to SE winds are over the eastern basin behind the tropical wave there, while moderate or weaker winds and moderate to slight seas are elsewhere. For the forecast, the pressure gradient between the Atlantic high pressure along 27N-28N and the Colombia low will continue to allow for fresh to strong winds and rough seas over the south- central Caribbean mainly at night through Wed night. The strongest winds will occur off the coast of Colombia, occasionally pulsing to near gale-force at night. Moderate to fresh trades will prevail over the E Caribbean while moderate or weaker winds are forecast for the NW Caribbean. Otherwise, a tropical wave accompanied by scattered showers and thunderstorms will reach the central Caribbean tonight, and the western part of the basin by Sun night into Mon. ...ATLANTIC OCEAN... The northern portion of a tropical wave moving across Puerto Rico is producing scattered moderate isolated convection from north of Puerto Rico to 26N. For more information regarding the tropical wave, refer to the TROPICAL WAVE section above. Scattered moderate convection is found north of 28N and west of 66W, where low level convergence is occurring along and to the south of a complex area of low pressure and lingering frontal system just north of the area. Elsewhere, the Bermuda and Azores Highs and associated ridge covers the subtropical Atlantic waters and extend weakly across the northern Bahamas and into southeast Florida. This pattern supports moderate or weaker winds south of the ridge, except for fresh winds near the tropical wave north of Puerto Rico. Peak seas of 7 to 8 ft are found there. Elsewhere, slight to moderate seas of 6 ft and less prevail. Moderate to locally fresh N to NE winds are found south of the Azores High to 25N between Africa and 35W, where seas are 6 to 8 ft. For the forecast west of 55W, high pressure will continue to dominate the weather pattern through the period, promoting a gentle to moderate anticyclonic wind flow and slight to moderate seas. The northern portion of a tropical wave, currently located over Puerto Rico, will move across Hispaniola tonight, reaching the Turks and Caicos Islands, then the SE Bahamas on Sun and Sun night. An area of low pressure is expected to form tonight or Sunday along a frontal system off of the southeastern coast of the United States. Additional slow development of this low could occur through Monday as the system moves slowly east-northeastward. After that time, environmental conditions become less conducive for development. This system is forecast to remain north of the forecast area. $$ Stripling