Tuesday, September21, 2021
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Marine Weather and Tides
Petersburg, AK

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:39AMSunset 7:01PM Tuesday September 21, 2021 7:04 AM AKDT (15:04 UTC) Moonrise 7:33PMMoonset 7:10AM Illumination 100% Phase: Full Moon; Moon at 15 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PKZ035 Sumner Strait- 349 Am Akdt Tue Sep 21 2021
Today..SE wind 20 kt. Seas 4 ft, except 8 ft near ocean entrances. Showers.
Tonight..SW wind 15 kt. Seas 4 ft, except 9 ft near ocean entrances.
Wed..SW wind 15 kt. Seas 4 ft, except 8 ft near ocean entrances.
Wed night..SE wind 25 kt. Gusts to 40 kt. Seas 5 ft. Rain.
Thu..SE wind 25 kt. Seas 8 ft.
Fri..S wind 25 kt. Seas 7 ft subsiding to 4 ft.
Sat..S wind 15 kt. Seas 3 ft.


7 Day Forecast for Marine Location Near Petersburg, AK
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location: 56.63, -132.93     debug


Area Discussion for -
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FXAK67 PAJK 211335 AFDAJK

Southeast Alaska Forecast Discussion National Weather Service Juneau AK 535 AM AKDT Tue Sep 21 2021

SHORT TERM. Surface analysis and satellite imagery show low pressure spinning S of Cape Suckling with front pushing into the outer coast attm. The N edge of the main moisture stream clipping the Misty Fjords area but generally moving into W BC this morning. Although no lightning has been detected overnight, the 12Z PAYA sounding came in with ~8C/km mid level lapse rate with a slight inversion at the surface, so maintained mention of TS this morning over the NE gulf and coastal areas. Showers will prevail for most of the panhandle through the day with a decreasing trend beginning late afternoon/evening. Given the continued onshore flow through Wed maintained isold-sct shra across the region. The driest weather of the week will be brief as precip chances begin increasing again late Wed night/early Thu morning. Breezy winds will gradually ease today as the front pushes through the panhandle. Models in fairly good agreement with generally another 1-2" of precip today with some energy from the low over the gulf moving into SW YT tonight. This will result in an increasing S gradient across the N tonight with SCA winds through Lynn Canal. Forecast confidence remains above average for Wed to be the driest day this week.

LONG TERM. /Thursday through Monday night/ . The extended period will be an active, stormy period for SE Alaska and the surrounding waters as robust low pressure systems move through the Gulf and into the panhandle. Cold air advection filtering into the panhandle behind the Monday/Tuesday system will also see nippy temperatures in some areas, and it is looking possible that parts of the highways like White Pass may see a bit of snow Wednesday night through Thursday morning. Thursday will see an upper level trough displace the ridge and march across the gulf. Its surface reflection, a strong frontal system and associated low, will bring with it abundant wind and rain to the area. Operational models have come into decent agreement on the gale force front entering the panhandle on Thursday. The parent low is progged to stay over the N Gulf through Friday before dissipating over Southcentral AK through Saturday. This system will continue to impact the area through at least Friday, before rain diminishes Saturday and Sunday. There are some indications that offshore flow may become predominant in the lower levels later on Saturday and into Sunday, which would lead to a brief period of drier weather before another possible system arrives late Sunday or Monday. Guidance rapidly diverges after Monday, but it looks likely that the active weather pattern will be set to continue.

HYDROLOGY. Area rivers and streams over the AOR all rose in response to rainfall yesterday. Another 1-2 inches of rainfall expected today, but more focused on the central and N panhandle. Expect to see rises on area streams and rivers through this afternoon in response. Flooding is still not anticipated with today's rain. Focus then shifts to next system poised to bring an additional 1-3 inches of precip beginning Thu.

AJK WATCHES/WARNINGS/ADVISORIES. PUBLIC . Strong Wind until 10 AM AKDT this morning for AKZ023. MARINE . Small Craft Advisory for PKZ012-013-022-031-041>043-051>053.



BC/GFS

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LCNA2 - Lincoln Rock, AK 42 mi54 min SE 20 G 27 54°F 54°F
FFIA2 - Five Finger, AK 58 mi64 min SE 24 G 26 53°F 1000 hPa (-1.0)
CDEA2 - Cape Decision, AK 77 mi42 min S 20 G 28 55°F 1003.1 hPa51°F

Wind History for Port Alexander, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Petersburg, AK13 mi68 minN 010.00 miLight Rain53°F50°F89%1004.2 hPa

Link to 5 minute data for PAPG

Wind History from APG (wind in knots)
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SW5CalmCalmCalmE5N4CalmCalmNE6S7CalmN44S13
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1 day agoCalmCalmCalmCalmNE3CalmSE4CalmE4NE4NE3CalmCalmCalmW4CalmCalmCalmW3NW43Calm6
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2 days agoE3CalmE3E3NE4E4E4E4E4CalmE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Anchor Point, Alaska
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Anchor Point
Click for Map
Tue -- 03:48 AM AKDT     20.74 feet High Tide
Tue -- 06:35 AM AKDT     Sunrise
Tue -- 07:09 AM AKDT     Moonset
Tue -- 09:47 AM AKDT     -1.31 feet Low Tide
Tue -- 04:13 PM AKDT     21.03 feet High Tide
Tue -- 06:52 PM AKDT     Sunset
Tue -- 07:32 PM AKDT     Moonrise
Tue -- 10:07 PM AKDT     -0.73 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.912.116.819.920.718.814.693.5-0.3-1.20.64.69.815.119.12120.216.811.65.81.2-0.70.3

Tide / Current Tables for Wrangell Narrows (off Petersburg), Alaska Current
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Wrangell Narrows (off Petersburg)
Click for Map
Tue -- 02:15 AM AKDT     -0.00 knots Slack
Tue -- 05:37 AM AKDT     -4.84 knots Max Ebb
Tue -- 06:35 AM AKDT     Sunrise
Tue -- 07:09 AM AKDT     Moonset
Tue -- 08:28 AM AKDT     0.01 knots Slack
Tue -- 11:46 AM AKDT     4.85 knots Max Flood
Tue -- 02:41 PM AKDT     -0.01 knots Slack
Tue -- 05:57 PM AKDT     -4.71 knots Max Ebb
Tue -- 06:52 PM AKDT     Sunset
Tue -- 07:32 PM AKDT     Moonrise
Tue -- 08:46 PM AKDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.42.90.6-1.7-3.6-4.6-4.8-3.6-1.31.33.34.54.83.81.7-0.7-2.8-4.2-4.7-4.1-2.10.62.84.2

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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