Alert archive / Alaska / Storm Warnings in 2020

Storm Warning 23, NWS Juneau, AK

April 26, 2020

NWS Juneau, AK issued this storm warning at Apr 26, 2020, 3:42 AM AKDT. It was in force for 24 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 26, 2020, 3:42 AM AKDT (11:42 UTC)
Expired
Apr 27, 2020, 3:35 AM AKDT
In force
24 hr
Issued by
NWS Juneau, AK

The text

As transmitted.

633 
FZAK52 PAJK 261142
CWFAEG

Coastal Waters Forecast for Southeast Alaska
National Weather Service Juneau AK
342 AM AKDT Sun Apr 26 2020

Southeast Alaska Coastal Waters from Dixon Entrance to
Cape Suckling out 100 NM

Wind forecasts reflect the predominant speed and direction
expected. Seas forecasts represent the average of the highest
one-third of the combined windwave and swell height.

PKZ099-270545-
342 AM AKDT Sun Apr 26 2020
.SYNOPSIS FOR OUTSIDE WATERS...
A weather front stretching from the central gulf to Chichagof
Island tracks NW across the northern gulf through this afternoon.
A storm force low follows into the eastern gulf today, stalls, 
and weakens tonight through Monday. Its associated weather front 
reaches the southern Panhandle this afternoon. 

$$

PKZ041-270545-
Dixon Entrance to Cape Decision-
342 AM AKDT Sun Apr 26 2020

...STORM WARNING THIS AFTERNOON...

.TODAY...SE wind 30 kt increasing to 50 kt. Seas 13 ft building
to 20 ft. Rain.
.TONIGHT...S wind 45 kt. Seas 22 ft. Rain.
.MON...S wind 30 kt. Seas 18 ft. Rain.
.MON NIGHT...S wind 25 kt. Seas 16 ft. SW swell. Rain.
.TUE...S wind 25 kt. Seas 14 ft. 
.WED...S wind 25 kt diminishing to 15 kt. Seas 14 ft
subsiding to 10 ft. 
.THU...S wind 15 kt. Seas 8 ft. 

$$

PKZ042-270545-
Cape Decision to Cape Edgecumbe-
342 AM AKDT Sun Apr 26 2020

...STORM WARNING LATE THIS AFTERNOON...

.TODAY...S wind 25 kt becoming SE 50 kt. Seas 11 ft building to
18 ft. Rain.
.TONIGHT...SE wind 45 kt. Seas 23 ft. Rain.
.MON...S gale to 35 kt. Seas 19 ft. Rain.
.MON NIGHT...S wind 25 kt. Seas 17 ft. Rain.
.TUE...SE wind 25 kt. Seas 13 ft. 
.WED...S wind 20 kt. Seas 10 ft. 
.THU...S wind 15 kt. Seas 7 ft. 

$$

PKZ043-270545-
Cape Edgecumbe to Cape Fairweather-
342 AM AKDT Sun Apr 26 2020

...STORM WARNING LATE THIS AFTERNOON...

.TODAY...E wind 30 kt increasing to 50 kt by late this afternoon.
Seas 8 ft building to 18 ft. Rain in the afternoon. 
.TONIGHT...E wind 45 kt. Seas 22 ft. Rain.
.MON...SE gale to 40 kt diminishing to 30 kt in the afternoon.
Seas 19 ft. Rain.
.MON NIGHT...SE wind 30 kt. Seas 16 ft. 
.TUE...SE wind 20 kt. Seas 12 ft. 
.WED...SE wind 20 kt. Seas 9 ft. 
.THU...S wind 15 kt. Seas 7 ft. 

$$

PKZ051-270545-
Cape Fairweather to Icy Cape-
342 AM AKDT Sun Apr 26 2020

...GALE WARNING THIS EVENING THROUGH LATE TONIGHT...

.TODAY...NE wind 25 kt. Seas 11 ft. 
.TONIGHT...E wind 35 kt. Seas 18 ft. 
.MON...E gale to 35 kt. Seas 18 ft. 
.MON NIGHT...E wind 30 kt. Seas 14 ft. 
.TUE...E wind 20 kt becoming N. Seas 10 ft. 
.WED...N wind 10 kt becoming SE. Seas 7 ft. 
.THU...SE wind 15 kt. Seas 6 ft. 

$$

PKZ052-270545-
Icy Cape to Cape Suckling-
342 AM AKDT Sun Apr 26 2020

...SMALL CRAFT ADVISORY THROUGH LATE TONIGHT...

.TODAY...E wind 20 kt increasing to 30 kt. Seas 9 ft. 
.TONIGHT...NE wind 25 kt. Seas 12 ft. SE swell in the evening. 
.MON...NE wind 25 kt. Seas 14 ft. SE swell. 
.MON NIGHT...NE wind 25 kt. Seas 13 ft. SE swell. 
.TUE...E wind 20 kt becoming N. Seas 9 ft. 
.WED...NW wind 10 kt becoming E. Seas 7 ft. 
.THU...E wind 15 kt. Seas 6 ft. 

$$
2 follow-up statements
984 
FZAK52 PAJK 262359
CWFAEG

Coastal Waters Forecast for Southeast Alaska
National Weather Service Juneau AK
359 PM AKDT Sun Apr 26 2020

Southeast Alaska Coastal Waters from Dixon Entrance to
Cape Suckling out 100 NM

Wind forecasts reflect the predominant speed and direction
expected. Seas forecasts represent the average of the highest
one-third of the combined windwave and swell height.

PKZ099-271800-
359 PM AKDT Sun Apr 26 2020
.SYNOPSIS FOR OUTSIDE WATERS...
A storm force low near 39 N 139 W will gradually weaken as it
moves N into the E gulf Sunday night before stalling and
dissipating through Monday. Another low pressure system will
impact the E gulf and inner channels Tuesday.  

$$

PKZ041-271800-
Dixon Entrance to Cape Decision-
359 PM AKDT Sun Apr 26 2020

...GALE WARNING THROUGH LATE TONIGHT...

.TONIGHT...S wind 40 kt. Seas 22 ft. Rain.
.MON...S wind 30 kt. Seas 18 ft. Rain.
.MON NIGHT...S wind 25 kt. Seas 15 ft. Rain late. 
.TUE...SE gale to 45 kt. Seas 15 ft. Rain.
.TUE NIGHT...S wind 30 kt. Seas 15 ft. Rain.
.WED...S wind 25 kt diminishing to 15 kt. Seas 14 ft
subsiding to 10 ft. 
.THU...S wind 15 kt. Seas 8 ft. 
.FRI...SE wind 15 kt. Seas 7 ft. 

$$

PKZ042-271800-
Cape Decision to Cape Edgecumbe-
359 PM AKDT Sun Apr 26 2020

...STORM WARNING THROUGH THIS EVENING...

.TONIGHT...SE wind 50 kt diminishing to 40 kt late. Seas 22 ft.
Rain.
.MON...S wind 35 kt. Seas 19 ft. Rain.
.MON NIGHT...S wind 25 kt. Seas 15 ft. Rain late. 
.TUE...E gale to 40 kt. Seas 15 ft. Rain.
.TUE NIGHT...SE wind 30 kt. Seas 13 ft. Rain.
.WED...S wind 20 kt. Seas 10 ft. 
.THU...S wind 15 kt. Seas 7 ft. 
.FRI...E wind 15 kt. Seas 7 ft. 

$$

PKZ043-271800-
Cape Edgecumbe to Cape Fairweather-
359 PM AKDT Sun Apr 26 2020

...GALE WARNING THROUGH MONDAY...

.TONIGHT...E wind 40 kt. Seas 21 ft. Rain.
.MON...SE wind 40 kt diminishing to 30 kt in the afternoon.
Seas 19 ft. Rain.
.MON NIGHT...E wind 30 kt becoming S late. Seas 15 ft. Rain.
.TUE...SE gale to 35 kt. Seas 13 ft. 
.TUE NIGHT...E wind 30 kt. Seas 12 ft. Rain.
.WED...SE wind 20 kt. Seas 9 ft. 
.THU...S wind 15 kt. Seas 7 ft. 
.FRI...E wind 15 kt. Seas 6 ft. 

$$

PKZ051-271800-
Cape Fairweather to Icy Cape-
359 PM AKDT Sun Apr 26 2020

...GALE WARNING THROUGH MONDAY...

.TONIGHT...E wind 35 kt. Seas 14 ft building to 18 ft late. Rain.
.MON...E wind 35 kt. Seas 17 ft. 
.MON NIGHT...E gale to 35 kt. Seas 14 ft. Rain late. 
.TUE...E wind 25 kt. Seas 12 ft. S swell. 
.TUE NIGHT...N wind 20 kt. Seas 9 ft. S swell. 
.WED...N wind 10 kt becoming SE. Seas 7 ft. 
.THU...SE wind 15 kt. Seas 6 ft. 
.FRI...E wind 15 kt. Seas 6 ft. 

$$

PKZ052-271800-
Icy Cape to Cape Suckling-
359 PM AKDT Sun Apr 26 2020

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...NE wind 25 kt. Seas 12 ft. SE swell. 
.MON...NE wind 25 kt. Seas 14 ft. SE swell. 
.MON NIGHT...NE wind 30 kt. Seas 12 ft. 
.TUE...E wind 30 kt. Seas 11 ft. 
.TUE NIGHT...N wind 15 kt. Seas 8 ft. SE swell. 
.WED...NW wind 10 kt becoming E. Seas 7 ft. 
.THU...E wind 15 kt. Seas 6 ft. 
.FRI...SE wind 20 kt. Seas 6 ft. 

$$
015 
FZAK52 PAJK 271135
CWFAEG

Coastal Waters Forecast for Southeast Alaska
National Weather Service Juneau AK
335 AM AKDT Mon Apr 27 2020

Southeast Alaska Coastal Waters from Dixon Entrance to
Cape Suckling out 100 NM

Wind forecasts reflect the predominant speed and direction
expected. Seas forecasts represent the average of the highest
one-third of the combined windwave and swell height.

PKZ099-280545-
335 AM AKDT Mon Apr 27 2020
.SYNOPSIS FOR OUTSIDE WATERS...
A gale force low in the eastern gulf drifts slowly N today and
NW tonight. The low weakens to a front Tuesday as it heads west 
across the northern gulf. A new gale force low approaches from the
S Tuesday and reaches the SE gulf Tuesday night. 

$$

PKZ041-280545-
Dixon Entrance to Cape Decision-
335 AM AKDT Mon Apr 27 2020

...GALE WARNING EARLY...

.TODAY...S wind 35 kt diminishing in the morning. Seas 19 ft. 
Rain.
.TONIGHT...S wind 25 kt. Seas 14 ft. Rain late. 
.TUE...SE gale to 45 kt. Seas 17 ft. Rain.
.TUE NIGHT...S gale to 35 kt. Seas 20 ft. Rain.
.WED...S wind 30 kt diminishing to 20 kt. Seas 19 ft
subsiding to 12 ft. 
.THU...S wind 15 kt. Seas 9 ft. 
.FRI...SE wind 25 kt. Seas 9 ft. 

$$

PKZ042-280545-
Cape Decision to Cape Edgecumbe-
335 AM AKDT Mon Apr 27 2020

...GALE WARNING THROUGH THIS MORNING...

.TODAY...S wind 35 kt diminishing in the late morning. Seas 20 
ft. Rain.
.TONIGHT...S wind 25 kt. Seas 15 ft. Rain late. 
.TUE...E gale to 35 kt. Seas 15 ft. Rain.
.TUE NIGHT...SE gale to 35 kt. Seas 17 ft. Rain.
.WED...S wind 25 kt. Seas 16 ft subsiding to 12 ft. 
.THU...S wind 15 kt. Seas 9 ft. 
.FRI...E wind 20 kt. Seas 8 ft. 

$$

PKZ043-280545-
Cape Edgecumbe to Cape Fairweather-
335 AM AKDT Mon Apr 27 2020

...GALE WARNING THROUGH THIS MORNING...

.TODAY...SE wind 40 kt diminishing. Seas 19 ft. Rain.
.TONIGHT...E wind 30 kt becoming S late. Seas 15 ft. Rain.
.TUE...SE wind 25 kt becoming E gale to 35 kt in the
afternoon. Seas 13 ft. 
.TUE NIGHT...E wind 30 kt. Seas 14 ft. Rain.
.WED...SE wind 25 kt. Seas 12 ft. 
.THU...S wind 20 kt. Seas 8 ft. 
.FRI...SE wind 20 kt. Seas 7 ft. 

$$

PKZ051-280545-
Cape Fairweather to Icy Cape-
335 AM AKDT Mon Apr 27 2020

...GALE WARNING THIS MORNING AND TONIGHT...

.TODAY...E wind 40 kt diminishing to 30 kt in the afternoon. Seas
17 ft. 
.TONIGHT...E wind 35 kt. Seas 15 ft. Rain late. 
.TUE...E wind 25 kt. Seas 11 ft. 
.TUE NIGHT...N wind 20 kt. Seas 10 ft. S swell. 
.WED...N wind 15 kt becoming E. Seas 10 ft. 
.THU...S wind 15 kt. Seas 8 ft. 
.FRI...SE wind 15 kt. Seas 6 ft. 

$$

PKZ052-280545-
Icy Cape to Cape Suckling-
335 AM AKDT Mon Apr 27 2020

...SMALL CRAFT ADVISORY THROUGH LATE TONIGHT...

.TODAY...NE wind 25 kt. Seas 13 ft. SE swell. 
.TONIGHT...NE wind 30 kt. Seas 12 ft. SE swell in the evening. 
.TUE...E wind 30 kt. Seas 11 ft. 
.TUE NIGHT...N wind 15 kt. Seas 8 ft. SE swell. 
.WED...NW wind 10 kt becoming E. Seas 7 ft. 
.THU...SE wind 10 kt. Seas 7 ft. 
.FRI...E wind 15 kt. Seas 6 ft. 

$$

What forecasters said that day

The local office's own words before this storm 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 storm warning went out at Apr 25, 2:49 PM AKDT, 12 hours 53 minutes earlier.

Area forecast discussion, Apr 25, 2:49 PM AKDT, 12 hours 53 minutes before
Southeast Alaska Forecast Discussion
National Weather Service Juneau AK
249 PM AKDT Sat Apr 25 2020

.SHORT TERM...Satellite imagery and sfc analysis depict a 992mb
gale force low just SW of POW. Guidance has been poor with this
system with GFS depicting stronger solution, but considered an
outlier until about 12 hours ago when NAM/GEM trended towards
stronger solution. Forecast winds were raised this morning, but
not enough as Salmon Landing ob and PAKT rooftop gusted to 52kts
around noon. Air mass RGB shows some stratospheric intrusion with
the low center attm, so expect POW to see increasing winds through
the afternoon/early evening. However, kept mention of gusts to
50mph with HWW only for Z28 through 10pm. Future shifts will need
to monitor winds as this low slides N then NW along the coast as
it gradually begins to weaken. Precip with this system continues
to advect N, but given the stronger offshore flow due to stronger
low, has only made it into S Admiralty. Marine winds also
increasing over Clarence and Sumner Straits attm with SCA Nly in
Lynn Canal. Gales over the SE gulf and Clarence Strait will ease
overnight. Expect precip to continue advecting N with winds
diminishing overnight as the low fills. Attention then turns to a
stronger low moving into the E gulf Sun into Mon. Model solutions
in good agreement with this lows strength in the low to mid 970s
and in fair agreement with the position. This low is expected to
move into the E gulf but remain further W than current system.
This will bring another round of gales to Clarence and most of the
gulf Sun into Mon. With the further W track do not anticipate high
winds, but expect strong wind headlines S of Frederick Sound Sun
evening. Moderate rainfall will accompany this system as well,
especially for southern portions of the panhandle. Given the ppor
model performance with this system, confidence is below average
with impacts from tonight's storm, but increases to about average
with next system Sun into Mon.

.LONG TERM.../ Monday to Saturday as of 9 pm Friday / ... A short
version of the longer term discussion is wet and occaionsally
windy through the week.

The remnants of the strong Sunday low pulls into the northeast
Gulf and weakens on Monday. The various operational solutions are
quite different on positions of this feature in the NE gulf for
being roughly 3 days out from the start time Friday afternoon. For
the panhandle however not much change to the forecast between in
them in the general weather, but individual sites could see big
differences. Generally the weather should be brisk winds, rains
that may be moderate at times and then continued onshore flow from
the gulf.

Another low, this one weaker rolls up out of the east Pacific and
to the southwest of Prince of Wales Tuesday afternoon and then
into the central panhandle Tuesday night. This system should bring
a renewed round of rain and wind to the southern panahndle, and
then spread the rain to the central panhandle with the remnants
headed to the northern panhandle through early Wednesday. The end
of the week continues to shift somewhat as the long range often
does, however it does not seem to be a break in the wet pattern
for the majority of the forecast area through the end of the
month.

&&

.AJK Watches/Warnings/Advisories...
PUBLIC...Strong Wind Sunday afternoon for AKZ026-027.
     Strong Wind until 10 PM AKDT this evening for AKZ027.
     High Wind Warning until 10 PM AKDT this evening for AKZ028.
MARINE...Gale Warning for PKZ036-041>043.
     Small Craft Advisory for PKZ012-013-022-033-035-051-052.

&&

BC/Bezenek

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

In the hours before

Local storm report, Apr 25, 10:04 PM AKDT, 5 hours 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JUNEAU AK
1004 PM AKDT SAT APR 25 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0812 PM     NON-TSTM WND GST KETCHIKAN               55.36N 131.69W
04/25/2020  M71.00 MPH                          AK   MESONET

            PEAK WIND GUST AT KETCHIKAN HARBOR.

&&

EAL

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 3:36 AM AKDTStorm WarningAJK12 hr
Apr 26, 3:42 AM AKDTGale WarningAJK35 hr
Apr 26, 3:50 AM AKDTGale WarningAJK24 hr
Apr 26, 3:50 AM AKDTSmall Craft AdvisoryAJK4 days
Apr 26, 4:02 AM AKDTHigh Wind WarningAJK18 hr
Apr 26, 3:15 PM AKDTAreal Flood AdvisoryAJK19 hr
Apr 26, 3:31 PM AKDTGale WarningAJK24 hr
Apr 26, 3:31 PM AKDTSmall Craft AdvisoryAJK36 hr
Apr 26, 3:59 PM AKDTGale WarningAJK72 hr

Nearby

Storm Warnings in Alaska, 2020Every storm warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.