Alaska, 2016

High Wind in Alaska, November 4, 2016

November 4, 2016 · NWS AJK · 3 events in 3 counties and zones

On the heels of the first storm, a second strong low developed south of the Panhandle on the night of 11/3. A triple point deepened to storm force 964 MB off Dixon Entrance around 9 AM.

The toll

Deaths
0
Injuries
0
Property damage
$20,000
Crop damage
None recorded
Events
3

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS AJK wrote it up.

On the heels of the first storm, a second strong low developed south of the Panhandle on the night of 11/3. A triple point deepened to storm force 964 MB off Dixon Entrance around 9 AM. By afternoon the associated front moved onto Prince of Wales Island to drive some very strong winds for the southern Panhandle, BUT this case is unusual in that the wind damage was in the Juneau area with downed trees and power outages.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Juneau, AK wrote its last area forecast discussion before the first event at Nov 4, 4:34 AM AKST, 4 hours 26 minutes earlier.

Area forecast discussion, Nov 4, 4:34 AM AKST, 4 hours 26 minutes before
Southeast Alaska Forecast Discussion
National Weather Service Juneau AK
534 AM AKDT Fri Nov 4 2016

.SHORT AND LONG TERM...A strong 970 mb low this morning south of
the Gulf of Alaska has a triple point low moving quickly north
past Haida Gwaii by mid morning and then north along the coast
and inland near Cross Sound late this afternoon. The warm front
will sweep north across the panhandle with the associated cold
front not that far behind today. Expect much of the warm air to
stay aloft moving to the north central panhandle by late
afternoon. 925 mb temperatures show the initial push of 9C temps
cooling to near 6C over the north central panhandle, then falling
to 2 to 4 C by saturday morning behind the cold front.

The well developed surface feature has tight pressure gradient
along with strong low level jet of 50 to 75 kt is resulting in
storm force winds along the west coast of Prince of Wales,
Baranof, and Chichagof Island today. Also brought Clarence Strait
up to Storm force today.

As the low moves past the outer coast, expect a sharp turn to the
winds and strong west to southwest wind for a few hours before
diminishing through tonight. Gusts to 50 to 55 mph possible for
Baranof and Chichagof island until the low weakens and jumps
inland over the northern panhandle.

There is a substantial pocket of cold air wrapping about the big
low that has strong open cell shower look. This is aiding the
sparking of thunder over the eastern Pacific on the south and
southeast side of the low. Expect this to follow the triple point
northward over the outer coastal waters into tonight.

A developing wave moving across the western and northern Pacific
Ocean will move into western gulf Saturday. Models are fairly similar
on this low in a position and depth, dropping lower than 960 mb on
Saturday. This will help eject the earlier mentioned low south of
the gulf, northeast to Eastern Dixon Entrance Saturday night. The
strong low is expected to persist over the central gulf into next
week.

A development off the new gulf low appears to be taking aim at
the southern panhandle for Sunday night into Monday with the
potential for strong winds and some heavier rain. Will need to
watch and fine tune with future model solutions.

In the longer range the differences between the solutions are
continuing to accumulate so kept the ensemble solution that was in
place for mid to late next week. Confidence is average.

&&

.AVIATION...Lots of low level wind shear and turbulence for the
southern panhandle today as the storm force low moves in. This
LLWS and turb will be moving up the panhandle through the
afternoon and into tonight as the low moves northward just off the
outer coast. Some areas of marginal vfr and ifr conditions
expected with heavier frontal precip across the southern panhandle
today with those areas moving northward as well through the
afternoon and into tonight. Yakutat will likely be the only place
that stays vfr with little in the way of wind shear or turbulence
through tonight.

&&

.AJK Watches/Warnings/Advisories...
PUBLIC...STRONG WIND until 4 PM AKDT this afternoon for AKZ026.
     High Wind Warning from 10 AM this morning to 4 PM AKDT this
     afternoon for AKZ027-028.
     STRONG WIND until 10 AM AKDT this morning for AKZ027-028.
     STRONG WIND from 4 PM AKDT this afternoon through late tonight
     for AKZ027.
     STRONG WIND from 4 PM AKDT this afternoon through late tonight
     for AKZ025.
     STRONG WIND from this evening through late tonight for AKZ022-
     023.
     STRONG WIND from 4 PM AKDT this afternoon through this evening
     for AKZ028.
MARINE...Storm Warning for PKZ036-041>043.
     Gale Warning for PKZ021-022-032>035.
     Small Craft Advisory for PKZ011>013-031-051.
     Small Craft Advisory due to Seas for PKZ052-053.
&&

EAL/Bezenek

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Event by event

3 high wind. Local standard time, as filed.

High Wind, Dixon Entrance to Cape Decision Coastal Area

When
November 4, 9:00 AM AKST to 3:00 PM AKST
Where
Dixon Entrance to Cape Decision Coastal Area forecast zone
Measured
54 kt (62 mph) measured gust
Reported by
C-MAN Station

Observation outage for NWS Zone 27 during this storm. Nearby stations had 60 to 70 mph wind speeds. Cape Decision had several observations around 67 MPH. Hydaburg |did not report.

High Wind, Southern Inner Channels

When
November 4, 9:00 AM AKST to 3:00 PM AKST
Where
Southern Inner Channels forecast zone
Measured
58 kt (67 mph) measured gust
Reported by
ASOS

Ketchikan Airport observed gusts 60 to 70 mph on 11/4. No damage was reported.

High Wind, Juneau Borough and Northern Admiralty Island

When
November 4, 9:00 AM AKST to 3:00 PM AKST
Where
Juneau Borough and Northern Admiralty Island forecast zone
Measured
58 kt (67 mph) measured gust
Property damage
$20,000
Reported by
Utility Company

Multiple power outages were reported to the NWS by AEL&P. Blow-down trees took out power lines. Some private home fences were damaged.

What these are

High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Alaska in 2016Every state in 2016This day in weather historyWarnings in Alaska, November 2016

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 664769, 664770, 664771.