Atlantic Tropical Weather Discussion
NOAA National Hurricane Center (NHC) issues tropical cyclone advisory products at least every 6 hours at 5 am, 11 am, 5 pm, and 11 pm EDT.
Expires:No;;875263 AXNT20 KNHC 020614 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0615 UTC Sat May 2 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 0550 UTC. ...SPECIAL FEATURES... Gulf of America Gale Warning: A strong late-season cold front extends across northern Florida to Cedar Key then stalls across the NE Gulf to a 1005 mb low offshore Texas near 27N94W and then transitions back to a cold front that continues SW to NE Mexico near 24N98W. The front is supporting scattered to numerous showers and thunderstorms, mainly along the western portion. Winds are increasing behind the front with fresh to strong out of the NE, developing frequent gusts to gale-force, and building seas. By Sat morning, the front is forecast to extend from northern Florida to near Poza Rica, Mexico, and then from south Florida to the central Bay of Campeche by Sun morning. The front will continue to be followed by fresh to strong north to northeast winds, with winds reaching gale-force offshore Tampico by Sat morning, and offshore Veracruz Sat afternoon and night. Frequent gusts to gale-force are also forecast in the NW Gulf, including in the coastal waters. Rough seas up to 12 ft are expected with the strongest winds over the SW Gulf. Marine conditions should significantly improve early next week. Mariners are advised to keep up with the latest forecasts. Please read the latest HIGH SEAS FORECAST issued by the National Hurricane Center at website - https://www.nhc.noaa.gov/text/MIAHSFAT2.shtml for more details. ...TROPICAL WAVES... A tropical wave is in the central Atlantic, extending from 00N to 13N with an axis near 28W, moving W at around 10 kt. This wave is encompassed within a thick Saharan Air Layer with significant dry air and an otherwise hostile environment preventing any sort of deep convection. However, scattered moderate isolated strong convection is confined to the southern portion of the wave near the ITCZ from 04S to 04N between 24W and 39W. ...MONSOON TROUGH/ITCZ... The monsoon trough is inland Africa. The ITCZ extends from 02N15W to 02N25W then resumes near 02N32W and continues to 01N50W. For information on convection see the Tropical Waves section above. ...GULF OF AMERICA... Please see the SPECIAL FEATURES section above for information on a Gale Warning in the western Gulf. A strong late-season cold front extends across northern Florida to Cedar Key then stalls across the NE Gulf to a 1005 mb low offshore Texas near 27N94W and then transitions back to a cold front that continues SW to NE Mexico near 24N98W. The front is supporting scattered to numerous showers and thunderstorms, mainly along the western portion. Winds are increasing behind the front with fresh to strong out of the NE, developing frequent gusts to gale-force, and building seas. Fresh to strong E-SE winds are near the Yucatan Peninsula, with gentle to moderate SE-S winds elsewhere ahead of the front. Areas of smoke due to agricultural and forest fires in southern Mexico are limiting visibility to 3 to 5 miles over the far western Gulf and along the west and northwest Yucatan coasts in the Bay of Campeche. For the forecast, by Sat morning, the front will extend from northern Florida to near Poza Rica, Mexico, and then from south Florida to the central Bay of Campeche by Sun morning. The front will continue to be followed by fresh to strong north to northeast winds, with winds reaching gale-force offshore Tampico by Sat morning, and offshore Veracruz Sat afternoon and night. Frequent gusts to gale-force are also forecast in the NW Gulf, including in the coastal waters. Rough seas up to 12 ft are expected with the strongest winds over the SW Gulf. Marine conditions should significantly improve early next week. ...CARIBBEAN SEA... The pressure gradient between a 1016 mb high pressure E of the SE Bahamas and a 1006 mb low pressure over northern Colombia is sustaining fresh to strong trades off northern Colombia and the Gulf of Venezuela. Seas are 5 to 8 ft in these areas. Fresh to locally strong E winds are also ongoing N of Honduras in the vicinity of the Bay Islands and into the Gulf of Honduras, where seas are moderate to 7 ft. Moderate to fresh easterly trades prevail elsewhere, along with 3 to 6 ft seas, except for light to gentle winds in the lee of Cuba. Otherwise, scattered moderate convection is occurring across the Nicaragua, Panama and Costa Rica offshore waters. For the forecast, the pressure gradient between high pressure north of the area and the Colombian low will support moderate to fresh trades over the eastern and central Caribbean through Mon, reaching strong speeds at times in the south-central Caribbean and in the Gulf of Honduras with locally rough seas. A weakening cold front will approach the Yucatan Channel by Mon. This will slight weaken the pressure gradient and winds across the NW Caribbean. ...ATLANTIC OCEAN... A frontal boundary extends from near Bermuda to NE Florida. Over the central subtropical waters, a second cold front extends from 31N36W to 27N54W. Ahead of it, a surface trough extends from 30N28W to 21N55W to 20N63W. A 1021 mb high is W of the Canary Islands extending a broad ridge to remaining central and SW subtropical waters. Scatterometer data show moderate or weaker winds associated with these features, which is maintaining moderate seas in the 5 to 7 ft range. For the forecast west of 55W, the front will move eastward across the north waters through Sat while dissipating. The trough will persist on Sat and then weaken. Another cold front will move off the northeast Florida coast on Sat, and reach from near 31N71W to South Florida on Sun, then stall through Mon. A weak low pressure may develop along the front at that time. Fresh to strong winds will precede the front on Sat. Mainly fresh northeast to east winds will follow the front through Mon, along with locally rough seas near 31N. The remnants of the front should wash out Tue and Tue night with improving marine conditions through the middle of next week. $$ Ramos |