Juneau Borough and Northern Admiralty Island Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Areal Flood Watch
Issued: 11:24 AM AKDT Jul. 18, 2018 – National Weather Service

... Flood Watch in effect from Thursday afternoon through Friday
afternoon...

The National Weather Service in Juneau has issued a

* Flood Watch for central Inner Channels... including the following
area... Juneau.

* From Thursday afternoon through Friday afternoon

* suicide basin is now draining into Mendenhall Lake. Water levels
are rising and there is potential for flooding to begin by late
Thursday afternoon. Latest stage on Mendenhall Lake was 5.9 feet
as of 715 am. Flood stage is 9.0 feet. It is expected to reach a
near record peak stage of around 12 feet Thursday night into
Friday morning. Water levels should fall rapidly after it
peaks. However, there is inherent uncertainty in initial Glacial
Lake volume which will result in varying crest height and
timing.

* Once the lake stage reaches 9.1 feet, water will cover skaters
cabin Road between the skaters cabin and the West Glacier
trailhead. Also, water will flow into the Mendenhall Lake
campground. Once the lake stage reaches 10.9 feet, view drive
will be flooded and impassable with significant flooding to some
homes in the area.

Precautionary/preparedness actions...

A watch means conditions are favorable for the development of
flooding in and close to the watch area.

Persons living along streams should stay alert and be prepared to
take action if a warning or advisory is issued, or flooding is
observed.

This statement will be updated by 6 am akdt Thursday or sooner if
conditions warrant.



Rwt


Areal Flood Watch
Issued: 11:24 AM AKDT Jul. 18, 2018 – National Weather Service

... Flood Watch in effect from Thursday afternoon through Friday
afternoon...

The National Weather Service in Juneau has issued a

* Flood Watch for central Inner Channels... including the following
area... Juneau.

* From Thursday afternoon through Friday afternoon

* suicide basin is now draining into Mendenhall Lake. Water levels
are rising and there is potential for flooding to begin by late
Thursday afternoon. Latest stage on Mendenhall Lake was 5.9 feet
as of 715 am. Flood stage is 9.0 feet. It is expected to reach a
near record peak stage of around 12 feet Thursday night into
Friday morning. Water levels should fall rapidly after it
peaks. However, there is inherent uncertainty in initial Glacial
Lake volume which will result in varying crest height and
timing.

* Once the lake stage reaches 9.1 feet, water will cover skaters
cabin Road between the skaters cabin and the West Glacier
trailhead. Also, water will flow into the Mendenhall Lake
campground. Once the lake stage reaches 10.9 feet, view drive
will be flooded and impassable with significant flooding to some
homes in the area.

Precautionary/preparedness actions...

A watch means conditions are favorable for the development of
flooding in and close to the watch area.

Persons living along streams should stay alert and be prepared to
take action if a warning or advisory is issued, or flooding is
observed.

This statement will be updated by 6 am akdt Thursday or sooner if
conditions warrant.



Rwt


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