Marine Weather and Tides
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
|Sunrise 4:16AM||Sunset 11:46PM||Thursday June 22, 2017 6:05 AM AKDT (14:05 UTC)||Moonrise 3:01AM||Moonset 8:11PM||Illumination 3%|
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|PKZ126 Port Valdez- 349 Am Akdt Thu Jun 22 2017 |
Today..Variable wind less than 10 kt becoming sw 10 kt in the afternoon. Seas 2 ft. Rain showers.
Tonight..SW wind 15 kt in the evening becoming variable less than 10 kt. Seas 3 ft.
Fri..W wind 10 kt. Seas 2 ft.
Fri night..E wind 10 kt. Seas 2 ft.
Sat..SW wind 10 kt. Seas 2 ft.
Sun through Mon..W wind 10 kt. Seas 2 ft.
7 Day Forecast for Marine Location Near Cordova, AKHourly EDIT Help
Area Discussion for -  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxak68 pafc 221228|
southcentral and southwest alaska forecast discussion
national weather service anchorage ak
428 am akdt Thu jun 22 2017
Analysis and upper levels
An elongated, dirty, dirty ridge (lots of cloud cover within) of
high pressure sits over the southern mainland this morning. It is
definitely the odd-feature out, with no less than five low
pressure centers flanking it on all sides. The three closest
systems are all weak and dissipating, two over the northern gulf
providing a stream of moisture along the coast, and another is
nearing the bering strait with a weak upper level front along the
coast. The other two are in the northwest and northeast pacific.
Most of these features are aloft with generally high pressure at
the surface. Persistent convection over the canadian yukon will
keep mid-level clouds streaming into the ridge. Weak shower
activity exists in the northeasterly flow between the low high
across the mainland, even in the overnight hours.
Out west, the marine layer is in full pulse-mode, surging inland
overnight before getting mixed out during the daylight hours,
which are plentiful these days. A gale-force front is swinging
over the western central aleutians.
Guidance remains pretty much in lock-step with one another in this
semi-blocked pattern. The major systems, which are well outside of
most of the area of responsibility, are well agreed upon. The main
differences around the mainland are placement of convective
precipitation the next couple days, however, the general theme is
keeping higher terrain as the focus.
Short term forecast southcentral alaska (days 1 and 2)
The moist northeasterly flow aloft over southcentral alaska
remains again today, but there is generally less dynamic lift
so the areas of showers are less widespread over the region as
compared to yesterday morning.
At the surface, the light south to southwest flow will keep
moisture pumping into the area and areas of stratus packed up
along mountains near the coast and cook inlet.
The copper river basin and northern susitna valley remain unstable
and there remains a chance for a diurnal thunderstorm or two over
the next few days, but nothing very widespread is expected.
Short term forecast southwest alaska (days 1 and 2)
Onshore flow this morning with high pressure aloft is bringing a
layer of marine stratus clouds to the western kuskokwim delta and
fog over the bristol bay area. With little in the way of synoptic
forcing, most of the marine layer should burn off and retreat as
solar heating intensifies this afternoon. Once the clouds burn
off, it should be a fairly nice day over southwest alaska before a
shortwave trough moves in tonight. The latest model runs have
been keying in on this feature, which will drop down from the
bering later today and stall over the kuskokwim mountains tonight|
through Friday afternoon. Convergence in the lower levels
associated with a weak trough at the surface and low to mid-level
moisture moving in from the east will support rain over the
kuskokwim mountains. Most of the rain should taper off Friday
night as the upper-level forcing weakens and moves out of the
Short term forecast bering sea aleutians (days 1 and 2)
A ridge of high pressure over the eastern bering will shift east over
the next couple of days. This will allow a gale-force front over
the western bering to move to the central bering and aleutians
through Saturday. As it moves east, gale-force winds along the
front will weaken to small craft winds tonight. Showers associated
with the front will push east as well and linger over the central
bering as the front stalls and dissipates Friday night.
Another front will enter the western aleutians Friday night,
bringing another shot of rain and a swath of gale-force winds to
the southwest bering.
Long term forecast (days 3 through 7)
The upper level low moving into the southern gulf will not make it
as far north as previously forecast thus the weak ridge across the
interior will hold. As the upper low moves off to the east, the
upper ridge builds back over western alaska Sunday and Monday. As
this ridges builds it will slide east as a strong upper low pushes
into the central bering sea late Sunday. Monday through Wednesday
we expect the upper low to retrograde back into the northwest
bering sea with a trough extending southeast across the alaska
peninsula into the southwest gulf of alaska.
What this means for the sensible weather is we expect a warm dry
weekend for the southwest mainland while the aleutians and bering
sea will transition from the fog and stratus regime to the more
active cloudy rainy weather beginning Friday night. Cool and
cloudy conditions should extend into the southwest mainland for
the beginning of next week to mid week while the central bering
sea and aleutians remain in the cloudy, wet, and windy weather.
Model agreement has remained consistent through the long term and
the national guidance remained heavily weighted toward the
operational GFS model guidance through the weekend. The ec is a
bit of an outlier as we head to Tuesday and wpc stayed the course,
heavily favoring the GFS for their solution.
Afc watches warnings advisories
Marine... Gale 175 176 177 178.
Fire weather... None.
Synopsis and model discussion... Mtl
southcentral alaska... Ez
southwest alaska bering sea aleutians... Rd
long term... Sa
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|CRVA2 - 9454050- Cordova, AK||22 mi||53 min||Calm G 1||47°F||48°F||1029.3 hPa|
|VDZA2 - 9454240 - Valdez, AK||72 mi||53 min||Calm G 0||48°F||50°F||1029.3 hPa|
|46061 - Seal Rocks 55NM South of Valdez, AK||77 mi||75 min||S 3.9 G 3.9||52°F||2 ft|
Wind History for Cordova, AK(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Cordova, Merle K (Mudhole) Smith Airport, AK||10 mi||72 min||ESE 3||10.00 mi||Overcast||45°F||45°F||100%||1029.4 hPa|
Wind History from ACV (wind in knots)
|1 day ago||NE||Calm||Calm||Calm||Calm||Calm||N||W||SW||Calm||N||W||W||Calm||Calm||Calm||Calm||Calm||Calm||NE||Calm||Calm||Calm||Calm|
|2 days ago||Calm||Calm||Calm||Calm||Calm||W||SE||SE||SE|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Pete Dahl Slough |
Click for Map
Thu -- 12:03 AM AKDT 11.62 feet High Tide
Thu -- 04:01 AM AKDT Moonrise
Thu -- 04:13 AM AKDT Sunrise
Thu -- 07:18 AM AKDT -2.21 feet Low Tide
Thu -- 01:14 PM AKDT 8.64 feet High Tide
Thu -- 07:17 PM AKDT 1.68 feet Low Tide
Thu -- 09:10 PM AKDT Moonset
Thu -- 11:14 PM AKDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Eyak River entrance |
Click for Map
Thu -- 12:11 AM AKDT 12.42 feet High Tide
Thu -- 04:02 AM AKDT Moonrise
Thu -- 04:13 AM AKDT Sunrise
Thu -- 07:38 AM AKDT -2.31 feet Low Tide
Thu -- 01:22 PM AKDT 9.44 feet High Tide
Thu -- 07:37 PM AKDT 1.58 feet Low Tide
Thu -- 09:12 PM AKDT Moonset
Thu -- 11:16 PM AKDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of PacificNorthwest EDIT
Wind Forecast for (10,2,3,4)(on/off)  Help
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