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Marine Weather and Tides
Version 3.4 |
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it. 8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue. 12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 10/9/2019 Updated the Marine Zones. 9/4/2019 Fixed the weather maps due to NOAA moving them. 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. |
| Sunrise 8:24AM | Sunset 3:51PM | Monday January 18, 2021 5:14 PM AKST (02:14 UTC) | Moonrise 11:43AM | Moonset 11:52PM | Illumination 31% |  |
PKZ035 Sumner Strait- 341 Pm Akst Mon Jan 18 2021
.gale warning early this evening...
Tonight..SE wind 35 kt becoming sw 20 kt late. Seas 7 ft subsiding to 4 ft late. NEar ocean entrances, seas 10 ft. Rain.
Tue..SW wind 20 kt. Seas 4 ft, except 10 ft near ocean entrances. Rain showers in the morning.
Tue night..SW wind 15 kt. Seas 3 ft, except 8 ft near ocean entrances.
Wed..SW wind 10 kt. Seas 2 ft or less, except 6 ft near ocean entrances.
Wed night..N wind 10 kt. Seas 2 ft or less.
Thu..N wind 10 kt. Seas 2 ft or less.
Fri..N wind 10 kt becoming light. Seas 2 ft or less.
Sat..S wind 10 kt becoming light. Seas 2 ft or less.
.gale warning early this evening...
Tonight..SE wind 35 kt becoming sw 20 kt late. Seas 7 ft subsiding to 4 ft late. NEar ocean entrances, seas 10 ft. Rain.
Tue..SW wind 20 kt. Seas 4 ft, except 10 ft near ocean entrances. Rain showers in the morning.
Tue night..SW wind 15 kt. Seas 3 ft, except 8 ft near ocean entrances.
Wed..SW wind 10 kt. Seas 2 ft or less, except 6 ft near ocean entrances.
Wed night..N wind 10 kt. Seas 2 ft or less.
Thu..N wind 10 kt. Seas 2 ft or less.
Fri..N wind 10 kt becoming light. Seas 2 ft or less.
Sat..S wind 10 kt becoming light. Seas 2 ft or less.
7 Day Forecast for Marine Location Near Petersburg, AK
Hourly EDIT Help
location: 56.63, -132.93 debug
Area Discussion for -
(on/off) Help NOTE: mouseover dotted underlined text for definitionFXAK67 PAJK 190018 AFDAJK
Southeast Alaska Forecast Discussion National Weather Service Juneau AK 318 PM AKST Mon Jan 18 2021
SHORT TERM. /Monday night through Wednesday night/ . Southeast Alaska is in the midst of a quick moving atmospheric river scenario through Tuesday morning from the frontal system that is currently impacting the Panhandle. There is a deep healthy fetch of moisture stretching all the way down to the central Pacific. IVT values up to 800 are nearing the Panhandle for the time period, but will quickly move away from the Panhandle by morning. Luckily, since this system is quick moving, storm total rainfall amounts should not exceed 2.5 inches.
As stated, plenty of moisture is available. Temperatures are currently and and are expected to remain below freezing for the Klondike Highway area near White Pass for storm total snow amounts up to 20 inches. Model temperatures at 850 mb support this idea. Therefore, a Winter Storm Warning is in effect for that area.
As for Winds, a High Wind warning is in effect through this evening for some areas along the outer coast and the Juneau / Douglas area due to the tight pressure gradient between the system and a ridge centered over British Columbia. Various strong winds over land areas, gales, and small crafts over marine areas are in effect. Winds will subside and the weather will calm down, in general, as the storm system departs and a ridge begins building from the west tomorrow afternoon and the gradient relaxes.
After that, onshore flow begins to dominate and we will enter a more showery pattern. With the oncoming higher cloud ceilings, decreasing cloudiness and light winds for the latter half of the short term forecast period, patchy fog is expected along central and southern inner channel communities Tuesday night through Wednesday morning.
LONG TERM. /Wednesday through Monday as of 10 pm Sunday/ The upper level pattern in the extended looks very different from what we have been experiencing the last week or two. First off it is noticeably less active with a Pacific storm track more focused on the Bering Sea than the Gulf of Alaska. This is in large part due to the second point which is there is more ridging over the Gulf that will develop Wed into Fri. This ridge will not last as an upper trough is still forecast to push the ridge east this weekend, though the timing of that has slowed up a little compared to yesterday.
Lower in the atmosphere, chances of rain still linger in the panhandle on Wed, but diminish into Wed night as a low over the gulf slides SE and weakens as it does. It will be the victim of the building ridge over the gulf that will keep the panhandle fairly dry into Fri. Precip returns by Fri night and Sat as the next trough moves through the area. Forecast uncertainty is rather high for the timing of the onset of precip from this feature however, as the GFS wants to delay the precip until Sat afternoon while the ECMWF has it come in as early as Fri evening. Temperatures should be warm enough that most areas will be rain, with the possible exception of the northern inner channels, but precip amounts will be low as the system will have been weakened from its fight with the ridge as it crossed the gulf. Following this trough, guidance is still pointing toward a cold air outbreak late weekend into early next week. It is a little delayed from yesterday with not as much outflow expected until Mon at the earliest now, but if it persists in future runs, it will be some of the coldest air we have seen yet this year.
AJK WATCHES/WARNINGS/ADVISORIES. PUBLIC . Strong Wind until 9 PM AKST this evening for AKZ026. Strong Wind until midnight AKST tonight for AKZ027. Strong Wind until 9 PM AKST this evening for AKZ020-021-024. High Wind Warning until 9 PM AKST this evening for AKZ023-025. Strong Wind until midnight AKST tonight for AKZ028. Strong Wind through late tonight for AKZ019. Winter Storm Warning until 6 AM AKST Tuesday for AKZ018. High Wind Warning until 6 PM AKST this evening for AKZ017. MARINE . Storm Warning for PKZ043-051-052. Gale Warning for PKZ012-013-022-031>036-041-042-053. Small Craft Advisory for PKZ011-021.
JLC/EAL
Visit us at http://www.weather.gov/Juneau
Weather Reporting Stations
EDIT (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 |
| LCNA2 - Lincoln Rock, AK | 42 mi | 65 min | SE 36 G 58 | 44°F | 1018.3 hPa | 44°F | ||
| FFIA2 - Five Finger, AK | 58 mi | 75 min | SE 36 G 41 | 41°F | 1016.2 hPa (-4.9) | |||
| CDEA2 - Cape Decision, AK | 77 mi | 53 min | SSE 22 G 32 | 45°F | 1019.7 hPa | 41°F |
Wind History for Port Alexander, AK
(wind in knots) EDIT (on/off) Help| 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | |
| Last 24hr | SE | -- | -- | -- | N | -- | -- | -- | N | NE | N G5 | -- | -- | -- | -- | -- | -- | SE | E G6 | S G5 | SE G8 | S G16 | S G13 | S G13 |
| 1 day ago | -- | S G9 | SW G12 | S G12 | S G7 | S G14 | S G16 | S G15 | S G14 | S G15 | SW G14 | SW G20 | SW G27 | SW G16 | SW G29 | SW G20 | S G26 | S G28 | S G31 | S G15 | S G14 | S G11 | S G14 | S G9 |
| 2 days ago | S G13 | SW G10 | S G9 | N G5 | E | N | N G5 | N G5 | E | N | N G4 | NW | NW | NW | -- | NW | SW G4 | NW G11 | W | W G4 | E G4 | -- | S G8 | -- |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Petersburg, AK | 13 mi | 19 min | Var 5 | 4.00 mi | Light Rain Fog/Mist | 41°F | 39°F | 93% | 1019.6 hPa |
Link to 5 minute data for PAPG
Wind History from APG (wind in knots)
| 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | |
| Last 24hr | Calm | SW | Calm | SW | W | W | Calm | Calm | Calm | SW | NW | Calm | Calm | Calm | S | SE | E G18 | E G15 | Calm | |||||
| 1 day ago | G14 | Calm | N | N | W | SW | W | E | W | Calm | E | E | SW | SW | S | S G16 | SW | S G15 | S | S | Calm | |||
| 2 days ago | SW | S | Calm | Calm | SW | Calm | S | SE | SE | SE | SE G17 | E G20 | SE | SE G17 | SE G16 | SE G18 | SE | Calm |
Tide / Current Tables for Anchor Point, Alaska
EDIT Weekend mode (on/off) (on/off) Help One Week of DataAnchor Point
Click for Map
Mon -- 06:29 AM AKST 17.80 feet High Tide
Mon -- 08:12 AM AKST Sunrise
Mon -- 10:42 AM AKST Moonrise
Mon -- 12:19 PM AKST 3.61 feet Low Tide
Mon -- 03:53 PM AKST Sunset
Mon -- 06:23 PM AKST 16.13 feet High Tide
Mon -- 10:52 PM AKST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 06:29 AM AKST 17.80 feet High Tide
Mon -- 08:12 AM AKST Sunrise
Mon -- 10:42 AM AKST Moonrise
Mon -- 12:19 PM AKST 3.61 feet Low Tide
Mon -- 03:53 PM AKST Sunset
Mon -- 06:23 PM AKST 16.13 feet High Tide
Mon -- 10:52 PM AKST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 0.1 | 1.5 | 4.5 | 8.4 | 12.4 | 15.7 | 17.6 | 17.5 | 15.6 | 12.4 | 8.6 | 5.4 | 3.7 | 4 | 5.9 | 8.8 | 11.9 | 14.5 | 16 | 15.8 | 13.8 | 10.6 | 7.1 | 3.9 |
Tide / Current Tables for Wrangell Narrows (off Petersburg), Alaska Current
EDIT (on/off) Help One Week of DataWrangell Narrows (off Petersburg)
Click for Map
Mon -- 01:41 AM AKST 3.85 knots Max Flood
Mon -- 04:52 AM AKST -0.01 knots Slack
Mon -- 07:53 AM AKST -3.17 knots Max Ebb
Mon -- 08:13 AM AKST Sunrise
Mon -- 10:42 AM AKST Moonrise
Mon -- 10:56 AM AKST 0.00 knots Slack
Mon -- 01:42 PM AKST 3.01 knots Max Flood
Mon -- 03:52 PM AKST Sunset
Mon -- 04:45 PM AKST -0.01 knots Slack
Mon -- 07:50 PM AKST -3.27 knots Max Ebb
Mon -- 10:52 PM AKST Moonset
Mon -- 11:08 PM AKST 0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 01:41 AM AKST 3.85 knots Max Flood
Mon -- 04:52 AM AKST -0.01 knots Slack
Mon -- 07:53 AM AKST -3.17 knots Max Ebb
Mon -- 08:13 AM AKST Sunrise
Mon -- 10:42 AM AKST Moonrise
Mon -- 10:56 AM AKST 0.00 knots Slack
Mon -- 01:42 PM AKST 3.01 knots Max Flood
Mon -- 03:52 PM AKST Sunset
Mon -- 04:45 PM AKST -0.01 knots Slack
Mon -- 07:50 PM AKST -3.27 knots Max Ebb
Mon -- 10:52 PM AKST Moonset
Mon -- 11:08 PM AKST 0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| 2.9 | 3.7 | 3.8 | 3.2 | 1.7 | -0.2 | -1.9 | -2.9 | -3.2 | -2.8 | -1.7 | 0.1 | 1.9 | 2.9 | 3 | 2.5 | 1.3 | -0.4 | -2 | -3 | -3.3 | -2.9 | -1.9 | -0.3 |
Weather Map
(on/off) Help Weather Map
GEOS Local Image of PacificNorthwest EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Ground Weather Radar Station
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