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Example - Tropical Weather Outlook
ABNT20 KNHC 141731 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 200 PM EDT Mon Oct 14 2016 For the North Atlantic, Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on newly formed Tropical Depression Eleven, located in the central Gulf of Mexico, and on Post-Tropical Cyclone Julia, located just offshore of Cape Cod, Massachusetts. The National Hurricane Center is issuing advisories on Potential Tropical Cyclone Twelve, located about 100 miles south of San Juan, Puerto Rico. * Formation chance through 48 hours...high...70 percent * Formation chance through 5 days...high...90 percent A broad area of low pressure located a couple of hundred miles south-southwest of Jamaica is accompanied by showers and thunderstorms. This disturbance remains disorganized, and development, if any, should be slow to occur over the next couple of days while it moves slowly northwestward. Environmental conditions are expected to be marginally conducive for some development when the system moves over the northwestern Caribbean Sea and the southern Gulf of Mexico later this week. Locally heavy rainfall is possible over portions of Haiti and Jamaica today, and will likely spread across the Cayman Islands and eastern Cuba on Tuesday. * Formation chance through 48 hours...low...10 percent * Formation chance through 5 days...low...30 percent A westward-moving tropical wave is producing showers and thunderstorms across the Windward Islands. However, upper-level winds are becoming unfavorable for further development of this system. * Formation chance through 48 hours...low...10 percent * Formation chance through 5 days...low...10 percent A non-tropical area of low pressure could develop over the next couple of days a few hundred miles east of Bermuda, and this low will have some potential to gradually acquire tropical characteristics as it moves slowly southward. * Formation chance through 48 hours...low...near 0 percent * Formation chance through 5 days...low...20 percent && Public Advisories on Tropical Depression Eleven are issued under WMO header WTNT31 KNHC and under AWIPS header MIATCPNT1. Forecast/Advisories are issued under WMO header WTNT21 KNHC and under AWIPS header MIATCMNT1. $$ Forecaster Franklin
Example - Special Tropical Weather Outlook
ZCZC MIATWOAT ALL TTAA00 KNHC DDHHMM Special Tropical Weather Outlook NWS National Hurricane Center Miami FL 400 PM EDT Thu Aug 21 2014 Updated for reconnaissance information For the North Atlantic...Caribbean Sea and the Gulf of Mexico: 1. Data from an Air Force Reserve Hurricane Hunter aircraft indicate that the circulation associated with the small low pressure area approaching the Leeward Islands is poorly defined. In addition, the associated shower activity has decreased during the past few hours. The aircraft did, however, find a small area of tropical-storm-force winds on the northeast side of the low. Environmental conditions are expected to be conducive for some development during the next day or so, and a tropical depression or tropical storm could still form while the system moves west-northwestward at around 20 mph across the Lesser Antilles. The mountainous terrain of Hispaniola could limit development during the first part of the weekend, but conditions are expected to become more conducive for development by Sunday when the system is forecast to move near or over the Bahamas. Regardless of tropical cyclone formation, gusty winds and heavy rainfall are expected across portions of the Lesser Antilles, Puerto Rico, and the Virgin Islands through Friday, and over Hispaniola late Friday and Saturday. Interests in those islands and in the Bahamas should closely monitor the progress of this disturbance. An Air Force Reserve Hurricane Hunter aircraft is scheduled to investigate this system again tomorrow afternoon. * Formation chance through 48 hours...medium...50 percent. * Formation chance through 5 days...high...70 percent. $$ Forecaster Brennan/Blake NNNN