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Tropical Storm Lidia Public Advisory Number 9A
2017-09-01 01:33:34| National Hurricane Center (East Pacific)
Issued at 600 PM MDT Thu Aug 31 2017 000 WTPZ34 KNHC 312333 TCPEP4 BULLETIN Tropical Storm Lidia Intermediate Advisory Number 9A NWS National Hurricane Center Miami FL EP142017 600 PM MDT Thu Aug 31 2017 ...LIDIA HESITATES JUST SOUTHWEST OF CABO SAN LUCAS... ...TROPICAL STORM CONDITIONS CONTINUE ACROSS SOUTHERN BAJA CALIFORNIA SUR... SUMMARY OF 600 PM MDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...22.7N 110.2W ABOUT 25 MI...40 KM SW OF CABO SAN LUCAS MEXICO MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...NNW OR 335 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...991 MB...29.27 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 Eugenia to Bahia San Juan Bautista * Mainland Mexico from Bahia Tempehuaya to Bahia Kino A Tropical Storm Watch is in effect for... * Baja California peninsula north of Punta Eugenia to San Juan De Las Palomas * Baja California peninsula north of Bahia San Juan Bautista to Isla San Luis * 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 Lidia. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 600 PM MDT (0000 UTC), the center of Tropical Storm Lidia was located near latitude 22.7 North, longitude 110.2 West. Lidia has moved very little during the past couple of hours, but is expected to resume a north-northwest track near 8 mph (13 km/h) tonight and continue through Friday. A turn toward the northwest is expected Friday night. On the forecast track, the center of Lidia will move near or over the Baja California peninsula through Friday night. Maximum sustained winds remain near 65 mph (100 km/h) with higher gusts. No significant change in strength is expected this evening. Thereafter, weakening is forecast as the circulation interacts with the high terrain of the Baja California peninsula. Tropical-storm-force winds extend outward up to 185 miles (295 km) mainly to the east of the center. Surface observations indicate that tropical-storm conditions are occurring over the southern end of the Baja California peninsula. Cabo San Lucas Marina recently reported a sustained wind of 44 mph (71 km/h) and a gust of 66 mph (106 km/h). The estimated minimum central pressure is 991 mb (29.27 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 occurring over the southern portion of Baja California Sur at this time. These conditions should spread northward across the warning area tonight through Friday night. 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 through Friday. Tropical storm conditions are possible in the watch areas Friday night or Saturday. 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 900 PM MDT. $$ Forecaster Avila
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