Tropical Weather Discussion
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Issued by NWS
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409 AXNT20 KNHC 051935 TWDAT Tropical Weather Discussion NWS National Hurricane Center Miami FL 0015 UTC Fri Nov 6 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 1800 UTC surface analysis and satellite imagery through 1920 UTC. ...SPECIAL FEATURES... Western Atlantic Gale Warning: A 1004 mb low pressure area, located near 27N65.5W, is producing gale force winds to the north and north of the center, as observed on afternoon scatterometer satellite data. Widespread strong winds are occurring across much of the central tropical Atlantic, generally north of 27N between 55W and 70W. Moderate to fresh winds are elsewhere from 20N to 31N between 55W and 72W. Recent buoy data indicate that rough seas of 8 to 12 ft are occurring in this region, with locally higher seas to 16 ft noted near the gale force winds. Scattered moderate to isolated strong convection is also noted. Environmental conditions could allow this system to gradually acquire some subtropical characteristics during the next couple of days or so while it moves slowly eastward over the western and central subtropical Atlantic. By late this weekend, upper-level winds are forecast to become unfavorable for further development of this system. A new non- tropical low could form to its east this weekend. Although environmental conditions are unlikely to support significant subtropical or tropical development of that system, gale-force winds are possible over parts of the central subtropical Atlantic through the weekend. Winds and seas start to diminish thereafter, as environmental conditions are forecast to become unfavorable for further development. Please read the latest High Seas Forecast issued by the National Hurricane Center at website: https://nhc.noaa.gov/text/HSFAT2.html and the latest Tropical weather outlook at website: https://nhc.noaa.gov/text/TWOEP.html for more details. Heavy Precipitation across Central America: Deep-layer troughing over the northwestern Caribbean extends southwestward across northern portions of Central America and into the tropical eastern Pacific. This feature will interact with enhanced low- level moisture and onshore flow south of the monsoon trough over the next several days. This will favor heavy precipitation developing across Central America starting today and lasting through at least Friday. The heaviest precipitation is expected across Nicaragua and Costa Rica, with the bulk of precipitation occurring through today. Heavy rainfall may lead to life- threatening flash flooding and landslides. Please refer to your local weather agency and the International Desk at the Weather Prediction Center for more details. ...MONSOON TROUGH/ITCZ... The monsoon trough enters the Atlantic near 10N14W and extends to 08N15W. The ITCZ extends from 08N15W to 10N40W to the coast of northern South America at 08N60W. Isolated to widely scattered moderate convection is noted from 01N to 14N between 16W and 42W. ...GULF OF AMERICA... A stationary front extends from the northeastern Gulf near Pensacola, Florida and continues southwestward to 25N96.5W offshore of NE Mexico. Farther southeast, a weak 1013 mb high prevails, centered near 25N88W. This pattern is supporting moderate or weaker winds, and 1-3 ft seas across the basin. For the forecast, the stalled frontal boundary from the Florida panhandle to the NW Gulf will start to push southward as a cold front across the Gulf waters Friday. Near gale NW winds are expected in the SW Gulf Sun night and Mon west of the front. Moderate to fresh winds will prevail elsewhere west of the front on Sun through early next week as it moves east across the basin. ...CARIBBEAN SEA... A 1008 mb low is centered over the northwestern Caribbean near 17N82W with limited convection. Afternoon scatterometer satellite data indicate mainly light to locally moderate NE to NE winds are occurring northwest of this feature. Elsewhere, moderate to locally strong convection is noted south of Hispaniola, and gusty winds and rapidly building seas are likely in this region. Otherwise, moderate or weaker winds and 1-3 ft seas are occurring across the rest of the basin, slightly higher seas near Atlantic passages. For the forecast, a weak pressure gradient across the basin will result in moderate or weaker trade winds, along with slight to moderate seas, through early next week. Winds will strengthen over the central Caribbean Tuesday. ...ATLANTIC OCEAN... Please see the Special Features section for information on a Gale Warning in the western Atlantic and the potential for subtropical development of this system (Invest AL94). Elsewhere, a cold front enters the central Atlantic near 31N25W and extends southwestward to 25N37W. Moderate to locally fresh SW winds are occurring south and east of the front. Farther west, a surface trough extending from 25N38W to 27N51W to 31N52W is producing locally fresh winds on either side of the feature. Moderate or weaker winds and moderate seas are noted elsewhere over the basin. For the forecast west of 55W, a 1004 mb low pres centered near 27N65W will drift through Fri then slowly move east-northeastward during the weekend. An area of strong to gale-force winds, and rough to very rough seas, peaking near 14 ft, prevails north of the low and will expand eastward through Sun, impacting the waters mainly north of about 27N. Elsewhere, a weakening cold front will move across the waters between Florida and 75W Fri and Fri night, then dissipate Sat and Sat night. $$ Lewitsky