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| #1025546 (Received by flhurricane at: 3:45 AM 16.Nov.2020) TCPAT1 BULLETIN Hurricane Iota Advisory Number 12 NWS National Hurricane Center Miami FL AL312020 400 AM EST Mon Nov 16 2020 ...IOTA HAS CONTINUED TO STRENGTHEN INTO A DANGEROUS CATEGORY 4 HURRICANE......EXPECTED TO BRING POTENTIALLY CATASTROPHIC WINDS, LIFE-THREATENING STORM SURGE, AND EXTREME RAINFALL IMPACTS TO CENTRAL AMERICA... SUMMARY OF 400 AM EST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...13.6N 81.1W ABOUT 25 MI...40 KM NE OF ISLA DE PROVIDENCIA COLOMBIA ABOUT 170 MI...275 KM SE OF CABO GRACIAS A DIOS ON NIC/HON BORDER MAXIMUM SUSTAINED WINDS...145 MPH...230 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...933 MB...27.55 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Providencia * The coast of Nicaragua from the Honduras/Nicaragua border to Sandy Bay Sirpi * The coast of northeastern Honduras from Punta Patuca to the Honduras/Nicaragua border A Hurricane Watch is in effect for... * San Andres A Tropical Storm Warning is in effect for... * San Andres * The coast of Nicaragua from south of Sandy Bay Sirpi to Bluefields * The northern coast of Honduras from west of Punta Patuca to Punta Castilla A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. Preparations to protect life and property should be rushed to completion in Nicaragua and Honduras. Preparations to protect life and property should have already been completed on Providencia and San Andres islands. 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. Interests elsewhere in Nicaragua and Honduras should monitor the progress of Iota. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 400 AM EST (0900 UTC), the center of Hurricane Iota was located by an Air Force Reserve reconnaissance aircraft and NOAA satellite data near latitude 13.6 North, longitude 81.1 West. Iota is moving toward the west near 10 mph (17 km/h). A westward to west-northwestward motion is forecast through landfall. After landfall, a westward to west-southwestward motion is expected. On the forecast track, the core of Iota will pass near or over Providencia island during the next few hours, and make landfall within the hurricane warning area in northeastern Nicaragua and eastern Honduras tonight. Data from the aircraft and NOAA satellites indicate that maximum sustained winds have increased to near 145 mph (230 km/h) with higher gusts. Iota is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Additional rapid strengthening is expected during the next 12 to 18 hours, and Iota could possibly be a catastrophic category 5 hurricane when it approaches Central America tonight. Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 150 miles (240 km). The estimated minimum central pressure based on reports from the Air Force Reserve Hurricane Hunter is 933 mb (27.55 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Hurricane Iota can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT1, WMO header WTNT41 KNHC and on the web at www.hurricanes.gov/text/MIATCDAT1.shtml. RAINFALL: Iota is expected to produce the following rainfall accumulations through Thursday: Honduras, northern Nicaragua, Guatemala, southern Belize: 8 to 16 inches (200 to 400 mm). Isolated maximum totals of 20-30 inches (500 to 750 mm) will be possible, especially from northeast Nicaragua into northern Honduras. Costa Rica and Panama: 4 to 8 inches (100 to 200 mm), with isolated maximum totals of 12 inches (300 mm). This rainfall will lead to significant, life-threatening flash flooding and river flooding, along with mudslides in areas of higher terrain. El Salvador and southern Nicaragua: 3 to 5 inches (75 to 125 mm), with isolated maximum totals of 10 inches (250 mm). WIND: Potentially catastrophic wind damage is expected where Iota`s eyewall moves onshore within the Hurricane Warning area in Nicaragua and Honduras beginning late tonight with tropical storm conditions expected by late morning. Hurricane conditions are likely occurring on the island of Providencia, with tropical storm conditions expected through the remainder of this morning and possibly into the early afternoon. Tropical storm conditions are likely occurring on the island of San Andres, with hurricane conditions possible there later this morning. Tropical storm conditions are expected in the Tropical Storm Warning area in Nicaragua by late afternoon and in the warning area in Honduras by tonight. STORM SURGE: A life-threatening storm surge will raise water levels by as much as 10 to 15 feet above normal tide levels in areas of onshore winds along the coast of Nicaragua and Honduras. Near the coast, the surge will be accompanied by large and destructive waves. SURF: Swells generated by Iota will affect much of the coast of Central America, the Yucatan Peninsula, Jamaica, and Colombia during the next couple of days. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 700 AM EST. Next complete advisory at 1000 AM EST. $$ Forecaster Stewart |
