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#1025783 (Received by flhurricane at: 1:05 AM 18.Nov.2020) TCPAT1 BULLETIN Tropical Storm Iota Intermediate Advisory Number 19A NWS National Hurricane Center Miami FL AL312020 1200 AM CST Wed Nov 18 2020 ...IOTA MOVING OVER SOUTHERN HONDURAS TOWARDS EL SALVADOR... ...THREAT OF CATASTROPHIC FLASH FLOODING AND MUDSLIDES CONTINUES ACROSS PORTIONS OF CENTRAL AMERICA... SUMMARY OF 1200 AM CST...0600 UTC...INFORMATION ----------------------------------------------- LOCATION...13.7N 87.8W ABOUT 25 MI...40 KM NE OF EL PAPALON EL SALVADOR MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * The coast of Honduras west of Punta Castilla to the Honduras/Guatemala border * Bay Islands A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1200 AM CST (0600 UTC), the center of Tropical Storm Iota was located near latitude 13.7 North, longitude 87.8 West. Iota is moving toward the west near 12 mph (19 km/h), and a westward to west-southwestward motion is expected through today. On the forecast track, the center of Iota will move across portions of southern Honduras and El Salvador before the system dissipates later today. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Rapid weakening is forecast, and Iota should weaken to a tropical depression later this morning and degenerate into a remnant low pressure area by this afternoon. Tropical-storm-force winds extend outward up to 185 miles (295 km) from the center, mainly along the coast in the Tropical Storm Warning area. Recent satellite-derived wind data indicate that tropical-storm-force wind gusts are still occurring along the northwestern coast of Honduras. The estimated minimum central pressure based on nearby surface observations is 1005 mb (29.68 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for 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. WIND: Tropical-storm conditions will continue for a couple of more hours well to the north of the center along the Caribbean coast of northwestern Honduras. RAINFALL: Iota is expected to produce the following additional rainfall accumulations through Thursday: El Salvador, Panama, western Honduras, northern Nicaragua, southern Belize : 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. Southern Nicaragua and Costa Rica: 3 to 5 inches (75 to 125 mm), with isolated maximum totals of 10 inches (250 mm). SURF: Swells generated by Iota will affect much of the coast of Central America and the Yucatan Peninsula during the next day or so. 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 300 AM CST. $$ Forecaster Stewart |