Tropical Weather Outlook: 2 areas being monitored, up to 90% development odds

en Español 000 ABNT20 KNHC 202315 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 800 PM EDT Sun Sep 20 2026 For the North Atlantic...Caribbean Sea and the Gulf of America: Active Systems: The National Hurricane Center is issuing advisories on Tropical Storm Fay, located several hundred miles southwest of the Azores. Tropical cyclone formation is not expected during the next 7 days. $$ Forecaster Roberts

en Español 612 ABPZ20 KNHC 201741 TWOEP Tropical Weather Outlook NWS National Hurricane Center Miami FL 1100 AM PDT Sun Sep 20 2026 For the eastern and central North Pacific east of 180 longitude: Active Systems: The National Hurricane Center is issuing advisories on Tropical Storm Odalys, located located over a thousand miles southwest of the southern tip of Baja California. Southwest of Southwestern Mexico (EP99): Showers and thunderstorms associated with a broad area of low pressure located about 350 miles south of Manzanillo, Mexico have changed little in organization since earlier today. However, environmental conditions remain conducive for development, and an increase in the organization of the system could result in it becoming a tropical depression or storm within the next day or so. The system is expected to move eastward off the coast of southern Mexico on Monday, but could begin moving toward the coast by late Tuesday. Interests along the southwestern and west-central coast of Mexico should monitor the progress of this system. For more information, including gale warnings, see the High Seas Forecast issued by the National Weather Service. * Formation chance through 48 hours...high...90 percent. * Formation chance through 7 days...high...90 percent. Well East-Southeast of the Hawaiian Islands (Former TD 15-E): Showers and thunderstorms associated with the remnants of Tropical Depression Fifteen-E, located well east-southeast of the Hawaiian Islands, remain limited. Environmental conditions appear conducive for some development of this system by the middle to latter portion of this week as the system moves westward to west-southwestward, and a tropical depression could form to the south or southeast of the Hawaiian Islands once the environment becomes more favorable. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 7 days...medium...60 percent. && Public Advisories on Tropical Storm Odalys are issued under WMO header WTPZ31 KNHC and under AWIPS header MIATCPEP1. Forecast Advisories on Tropical Storm Odalys are issued under WMO header WTPZ21 KNHC and under AWIPS header MIATCMEP1. High Seas Forecasts issued by the National Weather Service can be found under AWIPS header NFDHSFEPI, WMO header FZPN02 KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php $$ Forecaster Katz/Pasch