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Hurricane Iota Forecast Advisory Number 17

2020-11-17 15:39:30| National Hurricane Center (Atlantic)

Issued at 1500 UTC TUE NOV 17 2020 000 WTNT21 KNHC 171439 TCMAT1 HURRICANE IOTA FORECAST/ADVISORY NUMBER 17 NWS NATIONAL HURRICANE CENTER MIAMI FL AL312020 1500 UTC TUE NOV 17 2020 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENTS OF NICARAGUA AND HONDURAS HAVE CHANGED THE HURRICANE WARNING TO A TROPICAL STORM WARNING FOR THEIR RESPECTIVE COASTLINES FROM SANDY BAY SIRPI NICARAGUA TO PUNTA PATUCA HONDURAS. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * BLUEFIELDS NICARAGUA TO THE GUATEMALA/HONDURAS BORDER * BAY ISLANDS A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. INTERESTS ELSEWHERE IN NICARAGUA AND HONDURAS SHOULD MONITOR THE PROGRESS OF IOTA. HURRICANE CENTER LOCATED NEAR 13.7N 85.2W AT 17/1500Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 10 KT ESTIMATED MINIMUM CENTRAL PRESSURE 980 MB MAX SUSTAINED WINDS 65 KT WITH GUSTS TO 80 KT. 64 KT....... 15NE 10SE 0SW 10NW. 50 KT....... 50NE 40SE 30SW 40NW. 34 KT.......150NE 110SE 70SW 140NW. 12 FT SEAS..150NE 0SE 0SW 120NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 13.7N 85.2W AT 17/1500Z AT 17/1200Z CENTER WAS LOCATED NEAR 13.7N 84.7W FORECAST VALID 18/0000Z 13.7N 86.7W...INLAND MAX WIND 35 KT...GUSTS 45 KT. 34 KT...140NE 60SE 30SW 140NW. FORECAST VALID 18/1200Z 13.7N 88.8W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 19/0000Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.7N 85.2W INTERMEDIATE PUBLIC ADVISORY...WTNT31 KNHC/MIATCPAT1...AT 17/1800Z NEXT ADVISORY AT 17/2100Z $$ FORECASTER BLAKE

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Summary for Hurricane Iota (AT1/AL312020)

2020-11-17 12:46:55| National Hurricane Center (Atlantic)

...IOTA EXPECTED TO PRODUCE FLASH FLOODING, LANDSLIDES, LIFE-THREATENING STORM SURGE, AND POWERFUL WINDS ACROSS PORTIONS OF CENTRAL AMERICA TODAY... As of 7:00 AM EST Tue Nov 17 the center of Iota was located near 13.7, -84.8 with movement W at 9 mph. The minimum central pressure was 965 mb with maximum sustained winds of about 85 mph.

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Hurricane Iota Public Advisory Number 16A

2020-11-17 12:46:55| National Hurricane Center (Atlantic)

Issued at 700 AM EST Tue Nov 17 2020 000 WTNT31 KNHC 171146 TCPAT1 BULLETIN Hurricane Iota Intermediate Advisory Number 16A NWS National Hurricane Center Miami FL AL312020 700 AM EST Tue Nov 17 2020 ...IOTA EXPECTED TO PRODUCE FLASH FLOODING, LANDSLIDES, LIFE-THREATENING STORM SURGE, AND POWERFUL WINDS ACROSS PORTIONS OF CENTRAL AMERICA TODAY... SUMMARY OF 700 AM EST...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...13.7N 84.8W ABOUT 15 MI...25 KM WNW OF EL PIA NICARAGUA ABOUT 90 MI...145 KM WSW OF PUERTO CABEZAS NICARAGUA MAXIMUM SUSTAINED WINDS...85 MPH...135 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...965 MB...28.50 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * 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 Tropical Storm Warning is in effect for... * The coast of Nicaragua from south of Sandy Bay Sirpi to Bluefields * The northern coast of Honduras from west of Punta Patuca to the Guatemala/Honduras border * Bay Islands A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. 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 700 AM EST (1200 UTC), the center of Hurricane Iota was located near latitude 13.7 North, longitude 84.8 West. Iota is moving toward the west near 9 mph (15 km/h), and this general motion is expected to continue during the next day or so. On the forecast track, Iota will move farther inland across northern Nicaragua today, and move across southern Honduras tonight and Wednesday. Maximum sustained winds have decreased to near 85 mph (135 km/h) with higher gusts. Additional rapid weakening is expected today into Wednesday, and Iota is forecast to dissipate over Central America by Wednesday night. Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 175 miles (280 km). The estimated minimum central pressure is 965 mb (28.50 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. STORM SURGE: A life-threatening storm surge will raise water levels by as much as 5 to 10 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. WIND: Significant wind damage is occurring near Iota's eyewall and these winds will spread farther inland across northern Nicaragua during the next several hours. Tropical storm conditions are occurring in the Tropical Storm Warning areas in Nicaragua and Honduras. RAINFALL: Iota is expected to produce the following rainfall accumulations through Thursday: Honduras, northern Nicaragua, southeast and central Guatemala and southern Belize: 10 to 20 inches (250 to 500 mm), with isolated maximum totals of 30 inches (750 mm). El Salvador 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. 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 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 complete advisory at 1000 AM EST. $$ Forecaster Blake

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