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Glacier Bay Wilderness

Flood Watch issued September 19 at 1:47PM AKDT until September 21 at 4:00AM AKDT by NWS Juneau AK

1:47 PM — September 20th, 2:00 AM

A series of low pressure systems will move through the panhandle this weekend bringing prolonged rain combined with high freezing levels to increase ice melt on glacier river systems. The heavy rainfall and associated runoff will produce significant river rises with the potential of minor flooding. * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...The following area, Northern Inner Channels. This includes the cities of Skagway and Haines. * WHEN...From late tonight through late Sunday night. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, other low-lying areas and flood-prone locations. * ADDITIONAL DETAILS... - A series of lows will bring a prolonged period of rain combined with warmer temperatures aloft allowing for any precipitation falling into the region to remain as rain. Current thinking is that the light rain will continue Saturday evening before a second, stronger system moves in for Saturday night into Sunday morning bringing moderate to heavy rain fall. Rain showers will then take over on Sunday that may bring occasional moderate to heavy rainfall as well. For the Skagway area, 24 hour precip looks to get up to 1 to 2 inches this weekend while the storm total amounts could be 2 to 4 inches. The Haines area is expected to see 0.75 to 1.5 inches in 24 hours while a storm total precipitation of 2 to 3.5 inches is possible.

Gale Warning issued September 19 at 12:43PM AKDT until September 20 at 1:00PM AKDT by NWS Juneau AK

12:43 PM — 8:45 PM

* WHAT...For the first Small Craft Advisory, east winds 20 to 30 kt with gusts up to 40 kt and seas 8 to 13 ft expected. For the Gale Warning, southeast winds 30 to 40 kt with gusts up to 45 kt and seas 15 to 20 ft expected. For the second Small Craft Advisory, south winds 25 to 30 kt with gusts up to 45 kt and seas 15 to 20 ft expected. * WHERE...Cape Fairweather to Icy Cape out to 15 NM. * WHEN...For the first Small Craft Advisory, from 4 PM this afternoon to 4 AM AKDT Sunday. For the Gale Warning, from 4 AM to 1 PM AKDT Sunday. For the second Small Craft Advisory, from 1 PM Sunday to 4 PM AKDT Monday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.

Gale Warning issued September 19 at 12:43PM AKDT until September 20 at 1:00PM AKDT by NWS Juneau AK

12:43 PM — 8:45 PM

* WHAT...For the first Small Craft Advisory, southeast winds 20 to 30 kt with gusts up to 40 kt and seas 8 to 13 ft expected. For the Gale Warning, south winds 25 to 35 kt with gusts up to 50 kt and seas 14 to 19 ft expected. For the second Small Craft Advisory, south winds 20 to 30 kt with gusts up to 40 kt and seas 15 to 20 ft expected. * WHERE...Cape Spencer to Cape Fairweather out to 15 NM. * WHEN...For the first Small Craft Advisory, until 4 AM AKDT Sunday. For the Gale Warning, from 4 AM to 1 PM AKDT Sunday. For the second Small Craft Advisory, from 1 PM Sunday to 4 PM AKDT Monday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.

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