000 ABNT20 KNHC 172319 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 800 PM EDT Sun Sep 17 2023 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: Active Systems: The National Hurricane Center is issuing advisories on Tropical Storm Nigel, located over the central subtropical Atlantic. Eastern Tropical Atlantic: A tropical wave is forecast to move off the west coast of Africa by Wednesday. Environmental conditions are forecast to be conducive for gradual development of the wave thereafter, and a tropical depression could form late this week or next weekend while the system moves westward across the eastern and central tropical Atlantic. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 7 days...medium...50 percent. Western Atlantic: A non-tropical area of low pressure could form near the southeast coast of the United States late this week. This system is forecast to move northward or northwestward and could acquire some subtropical characteristics if it remains offshore. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 7 days...low...20 percent. $$ Forecaster Brown