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| #880371 (Received by flhurricane at: 1:03 PM 23.Nov.2016) TCPAT1 BULLETIN TROPICAL STORM OTTO INTERMEDIATE ADVISORY NUMBER 11A NWS NATIONAL HURRICANE CENTER MIAMI FL AL162016 100 PM EST WED NOV 23 2016 ...OTTO CONTINUES MOVING SLOWLY WEST-NORTHWESTWARD... SUMMARY OF 100 PM EST...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...11.1N 81.0W ABOUT 155 MI...250 KM ENE OF LIMON COSTA RICA ABOUT 200 MI...320 KM ESE OF BLUEFIELDS NICARAGUA MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 6 MPH...9 KM/H MINIMUM CENTRAL PRESSURE...994 MB...29.36 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Limon Costa Rica to Bluefields Nicaragua A Hurricane Watch is in effect for... * North of Bluefields to Sandy Bay Sirpi Nicaragua * South of Limon to the Costa Rica/Panama border A Tropical Storm Warning is in effect for... * North of Bluefields to Sandy Bay Sirpi Nicaragua * San Andres A Tropical Storm Watch is in effect for... * West of Colon Panama to the Costa Rica/Panama border * Puntarenas Costa Rica to Puerto Sandino Nicaragua A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. Preparations to protect life and property should be rushed to completion. A Hurricane Watch means that hurricane conditions are possible within the watch area, usually within 48 hours. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in Nicaragua, Costa Rica, and Providencia Island should monitor the progress of Otto. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 100 PM EST (1800 UTC), the center of Tropical Storm Otto was located near latitude 11.1 North, longitude 81.0 West. Otto is moving toward the west-northwest near 6 mph (9 km/h). A turn toward the west with an increase in forward speed is expected tonight and Thursday. On the forecast track, the center of Otto will move onshore within the hurricane warning area on Thursday, and reach the Pacific coast of southern Nicaragua or northern Costa Rica early Friday. Maximum sustained winds remain near 70 mph (110 km/h) with higher gusts. Otto is forecast to become a hurricane again on Thursday before weakening over Central America after landfall. Tropical-storm-force winds extend outward up to 70 miles (110 km) from the center. The estimated minimum central pressure is 994 mb (29.36 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Outer rain bands from Otto are expected to produce rainfall accumulations of 4 to 8 inches over San Andres and Providencia islands, and the higher terrain of central and western Panama and southern Costa Rica through today. Total rainfall of 6 to 12 inches, with isolated amounts of 15 to 20 inches, can be expected across northern Costa Rica and southern Nicaragua through Thursday. These rains will likely result in life-threatening flash floods and mud slides. WIND: Hurricane conditions are expected within the hurricane warning area on Thursday, with tropical storm conditions expected to begin late tonight or Thursday morning, making outside preparations difficult or dangerous. Hurricane conditions are possible in the hurricane watch area on Thursday. Tropical storm conditions are expected within the warning area in Nicaragua tonight and Thursday. Tropical storm conditions are expected in San Andres later today. Tropical storm conditions are possible in the watch area along the Pacific coasts of Costa Rica and Nicaragua by Thursday night. STORM SURGE: The combination of a dangerous storm surge and large and destructive waves could raise water levels by as much 2 to 4 feet above normal tide levels in areas of onshore flow within the hurricane warning area. SURF: Swells generated by Otto are likely to cause life-threatening surf and rip current conditions over the next several days along the coasts of Panama, Costa Rica, and Nicaragua. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 400 PM EST. $$ Forecaster Blake |
