{"id": "1218139607958847491", "title": "Public Tropical Cyclone Advisory", "adv_date": "2026-10-12T15:00:00Z", "msg": "859\nWTPZ35 KNHC 121458\nTCPEP5\n \nBULLETIN\nHurricane Simon Advisory Number  21\nNWS National Hurricane Center Miami FL       EP202026\n800 AM MST Mon Oct 12 2026\n \n...SIMON CONTINUES MOVING SLOWLY NORTHWESTWARD OFFSHORE OF MEXICO...\n...DANGEROUS WINDS EXPECTED FOR A FEW MORE HOURS WITH FLOODING RAINS\nTO CONTINUE ALONG THE COAST...\n \n \nSUMMARY OF 800 AM MST...1500 UTC...INFORMATION\n----------------------------------------------\nLOCATION...20.1N 106.5W\nABOUT 55 MI...90 KM WSW OF CABO CORRIENTES MEXICO\nABOUT 215 MI...345 KM S OF MAZATLAN MEXICO\nMAXIMUM SUSTAINED WINDS...110 MPH...175 KM/H\nPRESENT MOVEMENT...NW OR 315 DEGREES AT 3 MPH...6 KM/H\nMINIMUM CENTRAL PRESSURE...962 MB...28.41 INCHES\n \n \nWATCHES AND WARNINGS\n--------------------\nCHANGES WITH THIS ADVISORY:\n \nThe government of Mexico has changed the Hurricane Warning to a\nHurricane Watch from north of Cabo Corrientes to El Roblito.\n \nThe government of Mexico has changed the Hurricane Warning to a\nTropical Storm Warning from Playa Perula north to Cabo Corrientes.\n \nSUMMARY OF WATCHES AND WARNINGS IN EFFECT:\n \nA Hurricane Warning is in effect for...\n* Las Islas Marias\n \nA Hurricane Watch is in effect for...\n* North of Cabo Corrientes to Bahia Tempehuaya\n \nA Tropical Storm Warning in in effect for...\n* Playa Perula to Cabo Corrientes\n \nA Hurricane Warning means that hurricane conditions are expected\nsomewhere within the warning area. Preparations to protect life\nand property should be rushed to completion.\n \nA Hurricane Watch means that hurricane conditions are possible\nwithin the watch area within 48 hours.\n \nA Tropical Storm Warning means that tropical storm conditions are\nexpected somewhere within the warning area, in this cast for the\nnext few hours.\n \nInterests elsewhere in west-central Mexico should continue to\nmonitor as changes to watches and warnings are possible later today.\n \nFor storm information specific to your area, please monitor\nproducts issued by your national meteorological service.\n \n \nDISCUSSION AND OUTLOOK\n----------------------\nAt 800 AM MST (1500 UTC), the center of Hurricane Simon was located\nnear latitude 20.1 North, longitude 106.5 West. Simon is moving\ntoward the northwest near 3 mph (6 km/h) and this general\nmotion is expected to continue into early Tuesday. A gradual turn\ntoward the northeast is forecast thereafter, and Simon is expected\nto approach the west-central Mexico coastline on Wednesday into\nThursday.\n \nMaximum sustained winds have decreased to near 110 mph (175 km/h)\nwith higher gusts. Some additional weakening is forecast today, but\nSimon could re-intensify some on Tuesday and Wednesday and is\nexpected to remain a hurricane through midweek. Rapid weakening is\nlikely after Simon moves inland late this week.\n \nHurricane-force winds extend outward up to 15 miles (30 km) from the\ncenter and tropical-storm-force winds extend outward up to 60 miles\n(95 km).\n \nThe estimated minimum central pressure is 962 mb (28.41 inches).\n \n \nHAZARDS AFFECTING LAND\n----------------------\nKey messages for Simon can be found in the Tropical Cyclone\nDiscussion under AWIPS header MIATCDEP5 and WMO header WTPZ45 KNHC.\n \nWIND: Hurricane conditions are likely to occur in the Hurricane\nWarning area of Las Islas Marias. Tropical storm conditions are\nexpected to occur for a few more hours in the Tropical Storm warning\narea. Hurricane conditions are possible within the watch area by\nWednesday, with tropical storm conditions possible by Tuesday night.\n \nRAINFALL: Simon is expected to produce additional rainfall totals of\n2 to 4 inches across coastal portions of southwest and west-central\nMexico with isolated additional amounts of 6 to 8 inches over\nportions of the state of Jalisco through early this week, and the\nstate of Sinaloa mainly Wednesday and Thursday. Isolated maximum\nstorm totals of 30 inches are possible over portions of the states\nof Michoacan, Colima, and Jalisco.  This rainfall will produce\nlife-threatening flooding and mudslides or worsen any on-going\nflooding, especially in areas of steep terrain.\n \nFor a complete depiction of forecast rainfall associated with Simon,\nplease see the National Weather Service Storm Total Rainfall Graphic\navailable at hurricanes.gov/graphics_ep5.shtml?rainqpf.\n \nSTORM SURGE: A dangerous storm surge is expected along the immediate\ncoast near and to the east of where the center approaches land. Near\nthe coast, the surge will be accompanied by large and destructive\nwaves.\n \nSURF:  Swells generated by Simon will affect portions of the coast\nof southwestern and west-central Mexico during the next few days.\nThese swells are likely to cause life-threatening surf and rip\ncurrent conditions. Please consult products from your local weather\noffice.\n \n \nNEXT ADVISORY\n-------------\nNext intermediate advisory at 1100 AM MST.\nNext complete advisory at 200 PM MST.\n \n"}