Alert archive / Alaska / High Wind Warnings in 2024

High Wind Warning 9, NWS Juneau, AK

March 30, 2024Skagway Municipality, Alaska

NWS Juneau, AK issued this high wind warning at Mar 30, 2024, 8:36 AM AKDT for Skagway Municipality, Alaska. It took effect at Mar 31, 2024, 4:00 AM AKDT. It was in force for 5 hr. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 30, 2024, 8:36 AM AKDT (16:36 UTC)
In effect from
Mar 31, 2024, 4:00 AM AKDT
Expired
Mar 31, 2024, 8:32 AM AKDT
In force
5 hr
Issued by
NWS Juneau, AK

County Skagway Municipality, AK

What was reported inside it

TimeReportWhereRemark
Mar 31, 4:32 AM AKDTNON-TSTM WND GST 58Skagway, AKPeak gust at Skagway airport ASOS.
Mar 31, 7:50 AM AKDTNON-TSTM WND GST 63White Pass, AKPeak gust at KLNA2 White Pass RWIS station. Sustained winds were 52 mph at the time.
Mar 31, 7:58 AM AKDTNON-TSTM WND DMG1 N Dyea, AKLarge tree down on Dyea Road (MP 7.4) blocking the road.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Yakutat, (PYAK), launched 12:00Z, 4.6 hours before the alert went out and 242 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Yakutat, at 12:00Z on 2024-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Yakutat, at 12:00Z on 2024-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
492 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
324 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

050 
WWAK77 PAJK 301636
NPWAJK

URGENT - WEATHER MESSAGE
National Weather Service Juneau AK
836 AM AKDT Sat Mar 30 2024

AKZ318-310045-
/O.UPG.PAJK.HW.A.0005.240331T0900Z-240401T0600Z/
/O.NEW.PAJK.HW.W.0009.240331T1200Z-240331T2100Z/
Municipality of Skagway-
Including the cities of Skagway and White Pass
836 AM AKDT Sat Mar 30 2024

...HIGH WIND WARNING IN EFFECT FROM 4 AM TO 1 PM AKDT SUNDAY...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...Skagway and Klondike Highway.

* WHEN...From 4 AM to 1 PM AKDT Sunday.

* IMPACTS...High winds will blow around unsecured objects and may
  damage property and cause power outages. Travel will be
  difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure vessels and loose objects that could
be blown around or damaged by the wind.

Report any damage to the National Weather Service by visiting
weather.gov/Juneau/StormReports

&&

$$
3 follow-up statements
409 
WWAK77 PAJK 310016
NPWAJK

URGENT - WEATHER MESSAGE
National Weather Service Juneau AK
416 PM AKDT Sat Mar 30 2024

AKZ318-310900-
/O.CON.PAJK.HW.W.0009.240331T1200Z-240331T2100Z/
Municipality of Skagway-
Including the cities of Skagway and White Pass
416 PM AKDT Sat Mar 30 2024

...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 AM TO 1 PM AKDT
SUNDAY...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...Skagway and Klondike Highway.

* WHEN...From 4 AM to 1 PM AKDT Sunday.

* IMPACTS...High winds will blow around unsecured objects and 
  may damage property and cause power outages. Travel will be 
  difficult.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure vessels and loose objects that could
be blown around or damaged by the wind.

Report any damage to the National Weather Service by visiting
weather.gov/Juneau/StormReports

&&

$$
765 
WWAK77 PAJK 310834
NPWAJK

URGENT - WEATHER MESSAGE
National Weather Service Juneau AK
1234 AM AKDT Sun Mar 31 2024

AKZ318-311645-
/O.CON.PAJK.HW.W.0009.240331T1200Z-240331T2100Z/
Municipality of Skagway-
Including the cities of Skagway and White Pass
1234 AM AKDT Sun Mar 31 2024

...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 AM EARLY THIS
MORNING TO 1 PM AKDT THIS AFTERNOON...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...Skagway and Klondike Highway.

* WHEN...From 4 AM to 1 PM AKDT Sunday.

* IMPACTS...High winds will blow around unsecured objects and may
  damage property and cause power outages. Travel will be
  difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure vessels and loose objects that could
be blown around or damaged by the wind.

Report any damage to the National Weather Service by visiting
weather.gov/Juneau/StormReports

&&

$$
050 
WWAK77 PAJK 311632
NPWAJK

URGENT - WEATHER MESSAGE
National Weather Service Juneau AK
832 AM AKDT Sun Mar 31 2024

AKZ318-311745-
/O.CAN.PAJK.HW.W.0009.000000T0000Z-240331T2100Z/
Municipality of Skagway-
Including the cities of Skagway and White Pass
832 AM AKDT Sun Mar 31 2024

...HIGH WIND WARNING IS CANCELLED...

Gusty winds will continue through the morning and into the
afternoon, however, gusts should be in the 40 to 50 mph range.

$$

What forecasters said that day

The local office's own words before this high wind warning went out, 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 this high wind warning went out at Mar 30, 6:32 AM AKDT, 2 hours 4 minutes earlier.

Area forecast discussion, Mar 30, 6:32 AM AKDT, 2 hours 4 minutes before
Southeast Alaska Forecast Discussion
National Weather Service Juneau AK
632 AM AKDT Sat Mar 30 2024

.SHORT TERM...An active weather pattern returns to the panhandle
as increasingly stronger fronts move into SE AK through the next
few days. A weak front moving through the area as of the time of
writing is bringing occasional rain, and in a few places,
potentially some snow. As temperatures warm through the day, rain
will fully supplant any chances of snow, though do not expect any
significant precipitation totals. The best chance for
precipitation will be around the northern half of the panhandle
and for the outer Gulf Coast.

Another system will arrive through the evening hours and into
Sunday. This system will be somewhat stronger than the first one,
with some gale force winds for parts of the outer Gulf possible.
While precipitation will remain primarily rain (though a few
locations may see some snow mix in), the big story with this
system will be the potential for high winds in Skagway. MOS
Guidance is united behind the prospect of a high wind event for
the far northern panhandle, potentially driven by the possibility
of turbulent mixing from elevated winds in the 850 - 700 mb level
being brought down to the surface and then channeled through Taiya
Inlet. Most of the operational runs are somewhat less bold on
their forecasts for winds, but given the possibility, have chosen
to issue a High Wind Watch beginning Saturday night and going
through Sunday evening. Think that the best chance for any high
winds will be Sunday morning through Sunday afternoon. The
potential for fog development in areas south of the northern
panhandle, including the Icy Strait Corridor, exists Sunday night
as skies attempt to clear somewhat in these locations ahead of
another system which arrives on Monday. For additional details,
see the long term forecast discussion.

.LONG TERM...For the start of the long term period, rain will continue
across the panhandle and snow also looks to make a return towards
the middle of the week. For the first storm that will be hitting
during the start of the long term period, precipitation looks to
come to an end by Sunday night. Most of this will be rain but
there is the possibility that some snow will mix in. After the
main band of precipitation comes to an end, showers are still
likely across the area as onshore flow continues. After a brief
lull, another warm front will move into the gulf before impacting
the panhandle during the day on Monday. This system will have more
of a mix of rain and snow with some an increased likelihood of
snow. Looking at current 850mb temps and 1000-850mb thickness,
snow will be supported across the most of the panhandle with the
exception of the southern panhandle. Accumulations from this snow
look to remain below four to five inches and accumulations look to
be spread out over a longer period of time.

Getting later into the middle of next week, we look to have a
continued, unsettled pattern as onshore flow allows for active
weather. Temperatures are expected to remain more likely below
normal for the extended forecast.

&&

.AVIATION.../Until 12Z Sunday/...A frontal system is pushing into SE
AK. Primarily MVFR CIG flight conditions are expected through the
majority of the TAF period for the Alaskan Panhandle. VIS conditions
may occasionally dip down to within the MVFR category at times, as
well, along with heavier rain rates. SFC winds will be gusty for the
Lynn Canal / Skagway / Haines area as the pressure gradient tightens
as the front continues to push into the region. LLWS values of up to
around 30-35 kt out of the SE are likely for the NE Gulf Coast
Region, including Yakutat. LLWS values look to remain generally on
the more benign side elsewhere through the forecast period.

&&

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Strong Wind until 7 AM AKDT this morning for AKZ318.
     Strong Wind from this evening through late tonight for AKZ318.
     High Wind Watch from late tonight through Sunday evening for
     AKZ318.
     Strong Wind late tonight for AKZ319.
MARINE...Gale Warning for PKZ651-652-672.
     Small Craft Advisory for PKZ012-013-021-022-031>034-053-641>644-
     661>664-671.

&&

SHORT TERM...GFS
LONG TERM....SF
AVIATION...JLC

Visit us at http://www.weather.gov/Juneau

The office that day

Everything else NWS Juneau, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 30, 3:58 AM AKDTSmall Craft AdvisoryAJK48 hr
Mar 30, 3:59 AM AKDTGale WarningAJK24 hr
Mar 30, 4:01 AM AKDTGale WarningAJK35 hr
Mar 30, 4:35 AM AKDTHigh Wind WatchAJKSkagway Municipality4 hr
Mar 30, 8:43 AM AKDTGale WarningAJK31 hr
Mar 30, 2:55 PM AKDTGale WarningAJK24 hr
Mar 30, 2:56 PM AKDTGale WarningAJK24 hr

Nearby

High Wind Warnings in Alaska, 2024Every high wind warning in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.