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| #880490 (Received by flhurricane at: 10:00 PM 24.Nov.2016) TCPAT1 BULLETIN TROPICAL STORM OTTO ADVISORY NUMBER 17 NWS NATIONAL HURRICANE CENTER MIAMI FL AL162016 900 PM CST THU NOV 24 2016 ...OTTO WEAKENS TO A TROPICAL STORM OVER NORTHWESTERN COSTA RICA... ...THE CENTER SHOULD EMERGE INTO THE EASTERN PACIFIC IN THE NEXT FEW HOURS... SUMMARY OF 900 PM CST...0300 UTC...INFORMATION ---------------------------------------------- LOCATION...10.9N 85.6W ABOUT 20 MI...30 KM N OF LIBERIA COSTA RICA MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...W OR 265 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...990 MB...29.24 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Governments of Nicaragua and Costa Rica have discontinued the Hurricane and Tropical Storm Warnings for the Caribbean coasts of those countries. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Puntarenas Costa Rica to Puerto Sandino Nicaragua Interests elsewhere in Nicaragua and Costa Rica 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 900 PM CST (0300 UTC), the center of Tropical Storm Otto was located near latitude 10.9 North, longitude 85.6 West. Otto is moving toward the west near 13 mph (20 km/h). A turn toward the west-southwest and a faster forward speed are expected later tonight. On the forecast track, the center of Otto should move across northwestern Costa Rica and into the eastern North Pacific Ocean during the next few hours, then move away from the Central American coast on Friday. Maximum sustained winds have decreased to near 70 mph (110 km/h) with higher gusts. Some additional slow weakening is forecast during the next 48 hours. Tropical-storm-force winds extend outward up to 70 miles (110 km) from the center. The estimated minimum central pressure is 990 mb (29.24 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 tonight. These rains will likely result in life-threatening flash floods and mudslides. Recent reports from amateur radio operators indicate that mudslides are occurring over portions of northern Costa Rica. Outer rain bands from Otto are expected to produce rainfall accumulations of 3 to 6 inches with total rainfall amounts of up to 10 inches over the higher terrain of southern Costa Rica through Friday. WIND: Tropical storm conditions are expected in the warning area along the Pacific coasts of Costa Rica and Nicaragua tonight. 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. High surf is likely to occur during the next few hours over portions of Lago Nicaragua. NEXT ADVISORY ------------- Next intermediate advisory at 1200 AM CST. Next complete advisory at 300 AM CST. The intermediate advisory at 1200 AM CST will be issued under Atlantic AWIPS header MIATCPAT1 and WMO Header WTNT31 KNHC. The next complete advisory at 300 AM CST will be issued as an Eastern North Pacific Public Advisory under AWIPS header MIATCPEP2 and WMO header WTPZ32 KNHC. $$ Forecaster Beven |
