Record rainfall in Alaska: Dangerous floods and landslides – Next Triple-cyclone is coming from Pacific




Alaskan coast is bothered by severe rain- and snowstorms in early winter 2020/2021.

Firstly, extreme amounts of 48-hour precipitation dropped in southeastern coast of Alaska on 1. and 2. December 2020 – up to 9.75 inches / 248 mm (floodlist.com), then a monster cyclonic system is moving towards Alaskan coast, with next extreme rainfall, up to 15 inches / next 48 hours (Sunday and Monday, 6.-7. December 2020).

Heavy rains in first 2 December days caused a large landslide on the coast in Haines – 4 people has been found and 2 are still missing.

Over northern Pacific, trio of cyclones such a monsterstorm are moving above Alaska and next floods and landslides are during next week possible.

Thanks to La nina and PNA+ phase, bomb cyclogenesis will be during winter 2020/2021 very frequent in the region, with significant cooling effect of northwestern parts of Northern America- mainly Alaska, Yukon and British Columbia, but too Northwestern Territories, Alberta and Saskatchewan.

Mkweather Winter 2020/2021 forecast for the USA and Canada (and Europe, too) you will find on /https://mkweather.com/2020/11/24/winter-forecast-2020-2021-final-outlook//, La nina seasonal outlook on /https://mkweather.com/2020/11/14/forecast-for-world-winter-2020-21-and-summer-2021-according-to-enso-predictions-strong-la-nina-winter-neutral-summer//, NOAA winter and December forecast reviews on /https://mkweather.com/2020/11/29/winter-forecast-for-usa-from-noaa/; https://mkweather.com/2020/12/03/updated-forecast-for-december-2020-for-the-usa-from-noaa//.

Infographics:

Source: https://www.severe-weather.eu/global-weather/alaska-united-states-pacific-extratropical-storm-mk/
Source: http://floodlist.com/america/usa/floods-landslides-southeast-alaska-december-2020
Source: http://floodlist.com/america/usa/floods-landslides-southeast-alaska-december-2020; NOAA
Source: wxcharts.com
Source: wxcharts.com

Read more:

https://mkweather.com/2020/11/24/winter-forecast-2020-2021-final-outlook/
https://mkweather.com/2020/11/14/forecast-for-world-winter-2020-21-and-summer-2021-according-to-enso-predictions-strong-la-nina-winter-neutral-summer/
https://mkweather.com/2020/11/29/winter-forecast-for-usa-from-noaa/
https://mkweather.com/2020/12/03/updated-forecast-for-december-2020-for-the-usa-from-noaa/
https://mkweather.com/2020/12/06/first-noreaster-of-winter-should-bring-up-to-24-inches-60-cm-of-snow-in-new-england/
https://mkweather.com/2020/12/04/snowstorm-in-oklahoma-and-kansas-up-to-14-inches-36-cm-of-snow-in-southeast-frosts-up-to-18f-8c/
https://mkweather.com/2020/12/03/blizzard-in-cleveland-thompson-in-ohio-65-cm-25-5-inches/
https://mkweather.com/2020/11/27/ao-pattern-in-outlook-southern-usa-with-winter-canada-mini-indian-summer/
https://mkweather.com/2020/12/04/northern-usa-with-december-indian-summer-too-next-week-20c-68f/
https://mkweather.com/2020/12/01/mini-indian-summer-in-canada-in-december-20c-68f/
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Author: marekkucera
Writer about weather since 2007. The goal of this project is to inform a wide audience about extremes of weather, atmospheric circulation, and climate change around the world. If you like our work, you can support us on Patreon or donate.