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Potent Storm System Swallows Alaska

October 25, 2011|By Mitch Sego | Channel 2 Weather
From the KTUU Weather App

ANCHORAGE, Alaska — We continue to track this impressive low pressure system. It has moved over Kodiak Island and will make its way into the Kenai Peninsula late Tuesday. It will intensify in the morning then weaken by evening. These are the main impacts from this storm for Tuesday:

VERY STRONG WINDS: Wind gusts 70-80 mph from the SE will blow through Turnagain Arm, Portage Valley, Kodiak Island and channeled terrain of the Alaska Peninsula. Winds will peak from late morning into early afternoon, then begin to diminish Tuesday night. There is a High Wind Warning in effect until 4 p.m. Tuesday for these areas. There is also a Wind Advisory for the Alaska Range for winds up to 55 MPH and the North Slope for 40 MPH gusts.

HEAVY RAIN: Prince William Sound saw 1-5 inches of rain Monday. An additional 1-5 inches is likely Tuesday. Hence, an Urban and Small Stream Flood Advisory is in effect for the Western Prince William Sound region. Rain totals of 3-10 inches are possible through Tuesday night. Heavy rain will impact Kodiak and Bristol Bay, as well as the SE Panhandle, although no advisories for excessive rain totals are in place.

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SNOW/FREEZING RAIN: Snow will continue over the mountain passes. Thompson Pass could see an additional foot of snow Tuesday before ending Wednesday. A Winter Weather Advisory is posted until 4 p.m. Travel will be slick and dangerous. An inch or two of additional snowfall is possible for the west coast, but some of the messiest conditions will be in the western Interior. An area from McGrath west to Anvik and north to Galena will see periods of freezing rain mixed with snow. A Winter Weather Advisory is in effect through the evening or overnight.

This is a potent, dynamic storm. Light rain or sprinkles and warm weather will persist in Anchorage, making for a fairly quiet day, at least when compared to surrounding areas.

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