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Tropical Storm Lidia Public Advisory Number 8A
2017-08-31 19:41:34| National Hurricane Center (East Pacific)
Issued at 1200 PM MDT Thu Aug 31 2017 000 WTPZ34 KNHC 311741 TCPEP4 BULLETIN Tropical Storm Lidia Intermediate Advisory Number 8A NWS National Hurricane Center Miami FL EP142017 1200 PM MDT Thu Aug 31 2017 ...LIDIA STRENGTHENING AS THE CENTER NEARS CABO SAN LUCAS... ...TROPICAL STORM CONDITIONS OCCURRING ACROSS SOUTHERN BAJA CALIFORNIA SUR... SUMMARY OF 1200 PM MDT...1800 UTC...INFORMATION ----------------------------------------------- LOCATION...22.5N 110.0W ABOUT 25 MI...40 KM S OF CABO SAN LUCAS MEXICO MAXIMUM SUSTAINED WINDS...65 MPH...105 KM/H PRESENT MOVEMENT...NNW OR 335 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...991 MB...29.26 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Watch is in effect for... * Baja California Sur from Puerto Cortes to east of La Paz A Tropical Storm Warning is in effect for... * Baja California peninsula from Punta Abreojos to Mulege * Mainland Mexico from Bahia Tempehuaya to Bahia Kino A Tropical Storm Watch is in effect for... * Baja California peninsula north of Punta Abreojos to Punta Eugenia * Baja California peninsula north of Mulege to Bahia De Los Angeles * Mainland Mexico north of Bahia Kino to Puerto Libertad A Hurricane Watch means that hurricane conditions are possible within the watch area. 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 western Mexico and the Baja California peninsula should monitor the progress of this system. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 1200 PM MDT (1800 UTC), the center of Tropical Storm Lidia was located near latitude 22.5 North, longitude 110.0 West. Lidia is moving toward the north-northwest near 9 mph (15 km/h) and this general motion is expected to continue through Friday, with a turn toward the northwest expected Friday night. On the forecast track, the center of Lidia will pass near or over the southern tip of the Baja California peninsula during the next few hours, and then will move over the peninsula through Friday night. Maximum sustained winds have increased to near 65 mph (105 km/h) with higher gusts. Some additional strengthening is possible during the next few hours. Weakening is expected tonight through Friday night as the center moves over the Baja California peninsula. Tropical-storm-force winds extend outward up to 160 miles (260 km) from the center. The Cabo San Lucas International Airport recently reported sustained winds of 58 mph (93 km/h), while a Mexican automated station near Cabo San Lucas recently reported sustained winds of 70 mph (113 km/h) and a wind gust of 90 mph (145 km/h) at an elevation of 735 ft (244 m). The estimated minimum central pressure is 991 mb (29.26 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: Lidia is expected to produce total rain accumulations of 8 to 12 inches across the Mexican states of Baja California Sur into Baja California and western Jalisco, with isolated maximum totals of 20 inches. In the Mexican states of Sinaloa, Nayarit, Colima, southern Michoacan, southern Sonora and central Jalisco, rainfall amounts of 3 to 6 inches are expected. These rains are expected to cause life-threatening flash floods and mudslides. WIND: Tropical storm conditions are spreading over the southern portion of Baja California Sur at this time. These conditions should spread northward across the warning area today through Friday. Hurricane conditions are possible within the hurricane watch area during the next several hours. Tropical storm conditions are expected in the warning area in mainland Mexico starting later today or tonight. Tropical storm conditions are possible in the watch areas late Friday or Friday night. Wind speeds atop and on the windward sides of hills and mountains are often up to 30 percent stronger than the near-surface winds indicated in this advisory, and in some elevated locations could be even greater. STORM SURGE: A dangerous storm surge is expected to produce coastal flooding in areas of onshore winds on the southern portion of Baja California Sur. Near the coast, the surge will be accompanied by large and destructive waves. SURF: Swells generated by Lidia are affecting portions of the coast of southwestern and western Mexico and southern portions of Baja California Sur, and could cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 300 PM MDT. $$ Forecaster Beven
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