Otto is now the strongest Atlantic hurricane this late in the season since 1934

Otto is now the strongest Atlantic hurricane this late in the season since 1934

Otto, now the strongest Atlantic hurricane this late in the season since 1934, is on its way to Nicaragua and Costa Rica with winds of 165 km/h (105 mph). Landfall is expected within the hurricane warning area during November 24, 2016. Heavy rainfall, life-threatening floods and landslides, strong winds, and dangerous storm surge will affect Panama, Costa Rica, and Nicaragua over the coming days.

Hurricane "Otto" formed on November 22, in the Caribbean Sea as the 7th hurricane of the 2016 Atlantic hurricane season, including record-breaking, early season Hurricane "Alex" of January 2016. Panama and Costa Rica were already affected by the hurricane. Local media reported that the death toll in Panama has reached seven people in the provinces of Colon and Panama.

Hurricane Otto approaching Panama, Costa Rica, and Nicaragua, November 23, 2016

Hurricane "Otto" approaching Panama, Costa Rica, and Nicaragua, November 23, 2016. Image credit: NASA/NOAA/DoD Suomi NPP/VIIRS

Otto was located about 110 km (70 miles) north of Limon, Costa Rica, and about 150 km (90 miles) southeast of Bluefields, Nicaragua, and moving westward at 13 km.h (8mph) on November 24, 2016, at 12:00 UTC, according to the National Hurricane Center (NHC). The hurricane, now a Category 2 system, was packing maximum sustained winds of 165 km/h (105 mph) with a minimum central pressure estimated at 976 hPa.

According to Philip Klotzbach, a meteorologist at CSU, Otto is now the strongest Atlantic hurricane reported this late in the season since 1934.

The winds of hurricane force extend up to 20 km (10 miles) from the center while the winds of tropical force reach up to 110 km (70 miles) from it.

A Hurricane Warning is currently in effect for areas of Limon, Costa Rica to Bluefields Nicaragua while a Hurricane Watch has been put in place for regions north of Bluefields to Sandy Bay Sirpi Nicaragua and south of Limon to the Costa Rica/Panama border. A Tropical Storm Warning is in effect for areas north of Bluefields to Sandy Bay Sirpi Nicaragua and Puntarenas Costa Rica to Puerto Sandino Nicaragua.

Its general motion is expected to continue throughout the day. The hurricane's center will make landfall within the hurricane warning area today and will continue moving across southern Nicaragua and northern Costa Rica through the evening. It will reach the Pacific coast of southern Nicaragua or northern Costa Rica during the coming night.

Otto may still strengthen prior to making landfall and weaken rapidly after making contact with land, becoming a tropical storm by tonight.

The NHC expects the system will, in total, produce between 152.4 and 304.8 mm (6 and 12 inches) of rainfall over northern Costa Rica and southern Nicaragua during November 24, the amount which could locally increase up to 381 or 508 mm (15 and 20 inches). Intense rainfall could trigger life-threatening flash floods and mudslides.

San Andreas, Providencia islands, higher regions of central and western Panama, and southern Costa Rica have been forecast with rainfall accumulations between 101.6 and 203.2 mm (4 and 8 inches) for the morning of November 24. Tropical conditions were forecast to begin within the warning area on the Caribbean coast of Nicaragua during the day and will extend in the warning area along the Pacific coasts of Costa Rica and Nicaragua by the evening of November 24.

Hurricane Otto 3-day forecast path. Image credit: NOAA/NWS

Hurricane "Otto" 3-day forecast path. Image credit: NOAA/NWS

Hurricane conditions are possible in the hurricane watch area during the day and have been expected to reach the hurricane warning area by morning or afternoon hours of November 24.

A dangerous storm surge, combined with large, destructive waves may raise the water levels by 1.2 to 1.8 m (4 to 6 feet) above the normal within the hurricane warning area.

Large swells are expected to induce life-threatening surf and rip current conditions along the coastal regions of Panama, Costa Rica, and Nicaragua over the next few days.

JRC (EU) calculations estimate a maximum storm surge of the order of 0.7 m (2.3 feet) in the area of Amerisco in south-eastern Nicaragua on November 24 at 15.00 UTC.

Featured image: Hurricane "Otto" on November 23, 2016. Credit: NASA/NOAA/DoD Suomi NPP/VIIRS

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