000 WTNT31 KNHC 050542 TCPAT1 BULLETIN Tropical Depression Sixteen Intermediate Advisory Number 3A NWS National Hurricane Center Miami FL AL162017 200 AM EDT Thu Oct 05 2017 ...DEPRESSION FORECAST TO BECOME A TROPICAL STORM LATER TODAY... ...FLOODING RAINS EXPECTED OVER PORTIONS OF CENTRAL AMERICA... SUMMARY OF 200 AM EDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...13.0N 83.0W ABOUT 75 MI...120 KM SSE OF PUERTO CABEZAS NICARAGUA ABOUT 95 MI...150 KM WNW OF SAN ANDRES ISLAND MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 6 MPH...9 KM/H MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Sandy Bay Sirpi Nicaragua to Punta Castilla Honduras A Hurricane Watch is in effect for... * Punta Herrero to Cabo Catoche Mexico A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within 12-24 hours. A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Interests elsewhere in Honduras, the Bay Islands, western Cuba and the Yucatan Peninsula should monitor the progress of the depression. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 200 AM EDT (0600 UTC), the center of Tropical Depression Sixteen was located near latitude 13.0 North, longitude 83.0 West. The depression is moving toward the northwest near 6 mph (9 km/h), and this motion is expected to continue this morning. A north- northwestward motion at a faster forward speed is forecast to begin later today and continue through late Friday. On the forecast track, the center of the depression should move across northeastern Nicaragua and eastern Honduras later today and then over the northwestern Caribbean Sea Thursday night and Friday. The center is expected to approach the coast of the Yucatan peninsula late Friday. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. The depression is forecast to strengthen to a tropical storm before it moves inland over northeastern Nicaragua. Additional strengthening is likely over the northwestern Caribbean Sea Thursday night and Friday. The estimated minimum central pressure is 1004 mb (29.65 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: The depression is expected to produce the following rain accumulations through Friday night: Nicaragua...15 to 20 inches, isolated 30 inches Costa Rica and Panama...5 to 10 inches, isolated 20 inches Honduras...2 to 5 inches, isolated 8 inches Heavy rainfall will occur over a wide area, including locations well away from the center along the Pacific coast of Central America. This rainfall could cause life-threatening flash floods and mudslides. WIND: Tropical storm conditions are expected to start in the warning area in Nicaragua later this morning, and spread into Honduras late today. Tropical storm and hurricane conditions are possible within the watch area in Mexico beginning late Friday. SURF: Swells generated by the cyclone are affecting portions of the coast of Nicaragua, and will begin to affect other land areas around the northwestern Caribbean later this week. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 500 AM EDT. $$ Forecaster Brown