ZCZC MIATCPAT1 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE OTTO ADVISORY NUMBER 13 NWS NATIONAL HURRICANE CENTER MIAMI FL AL162016 1000 PM EST WED NOV 23 2016 ...OTTO GETS A LITTLE STRONGER AS IT MOVES WESTWARD TOWARD NICARAGUA AND COSTA RICA... SUMMARY OF 1000 PM EST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...11.2N 82.2W ABOUT 100 MI...160 KM NNE OF LIMON COSTA RICA ABOUT 120 MI...195 KM ESE OF BLUEFIELDS NICARAGUA MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H PRESENT MOVEMENT...W OR 275 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...981 MB...28.97 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Government of Panama has discontinued the Tropical Storm Watch for Panama. 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 * 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. 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 1000 PM EST (0300 UTC), the center of Hurricane Otto was located near latitude 11.2 North, longitude 82.2 West. Otto is moving toward the west near 9 mph (15 km/h). This general motion is expected for the next couple of days with an increase in speed on 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 are now near 85 mph (140 km/h) with higher gusts. Additional strengthening is possible before landfall, with weakening expected as the cyclone crosses southern Nicaragua and northern Costa Rica. Hurricane-force winds extend outward up to 10 miles (20 km) from the center and tropical-storm-force winds extend outward up to 70 miles (110 km). The estimated minimum central pressure is 981 mb (28.97 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: 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. 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 tonight. 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 on San Andres tonight. Tropical storm conditions are expected within the warning area on the Caribbean coast of Nicaragua tonight and Thursday. Tropical storm conditions are expected in the warning 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 3 to 5 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 intermediate advisory at 100 AM EST. Next complete advisory at 400 AM EST. $$ Forecaster Beven NNNN