Friday, July3, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Halibut Cove, AK

Version 3.4
NOTICE
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 4:27AMSunset 11:40PM Friday July 3, 2020 6:45 PM AKDT (02:45 UTC) Moonrise 8:32PMMoonset 1:37AM Illumination 98% Phase: Waxing Gibbous; Moon at 13 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
    EDIT      (on/off)   Help
PKZ141 Kachemak Bay- 313 Pm Akdt Fri Jul 3 2020
Tonight..SW wind 15 kt in the evening becoming variable less than 10 kt. Seas 3 ft subsiding.
Sat..Variable wind less than 10 kt becoming sw 10 kt in the afternoon. Seas 2 ft.
Sat night..SW wind 15 kt becoming se 10 kt after midnight. Seas 4 ft subsiding to 2 ft after midnight.
Sun and Sun night..S wind 10 kt. Seas 2 ft.
Mon..Variable wind less than 10 kt. Seas 2 ft.
Tue through Wed..W wind 10 kt. Seas 2 ft.


7 Day Forecast for Marine Location Near Halibut Cove, AK
   Hourly   EDIT   Help
location: 59.51, -151.22     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXAK68 PAFC 040050 AFDAFC

Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 450 PM AKDT Fri Jul 3 2020

ANALYSIS AND UPPER LEVELS. The upper ridge over western Alaska/Alaska Peninsula has weakened and allowed minor short waves to propagate eastward. One such wave brought widespread rain/showers to Bristol Bay and the western Gulf Alaska. The remainder of Southwest Alaska was under generally cloudy skies. Upper Support for gusty outflow conditions diminished along the North Gulf Coast and eastern Kenai Peninsula which was evidenced by a shift to afternoon sea breezes in these areas. Further west, a weather front over the western Bering Sea/west Aleutians produced rain and gusty southerly winds to the area.

MODEL DISCUSSION. With the exception of minor timing issues with upper waves, the models are in generally good agreement with the synoptic features. The main areas of work will be thunderstorms across Southcentral over the weekend.

AVIATION. PANC . VFR conditions and light winds will persist.

SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2).

The major concern for the Independence Day holiday weekend will be the approaching strong shortwave aloft from the Interior Saturday afternoon. As this feature descends southeastward across the northern Susitna Valley, Talkeetna Mountains, and Copper River Basin, it will encounter a hot and unstable airmass leading to a high potential for hazardous weather. Expect an organized area of thunderstorms to develop ahead of the short-wave, producing frequent lightning, small hail and heavy rain. This seems like one of the few instances where thunderstorms will persists all night long as the short-wave continues to track across the Copper River Basin. Showers and thunderstorms will taper off Sunday as the short-wave exits the region.

Meanwhile, warm and dry conditions will continue across much of the remainder of Southcentral. Subsidence will increase as an upper level ridge builds in behind the aforementioned short-wave Sunday through Monday. This ridge will advect moisture and elevate cloud cover over Southcentral by Monday morning, leading to a cooling trend.

In the last couple days, strong offshore flow led to hot temperatures along the coast, with mid 70s to near 80 in Seward, Whittier, Valdez, and Cordova. Offshore flow will weaken this afternoon through tonight, with a more normal sea breeze pattern establishing itself in the coming days. Thus, expect temperatures to drop significantly from the lofty highs of the past couple days back to near normal.

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3: Tonight through Monday) .

A lead impulse, ahead of a large disturbance, will pass by just to the north and east of the lower Kuskokwim valley this evening. Daytime heading and cooling aloft with the impulse will allow for some weak instability to develop. This may be enough for an isolated thunderstorm or two to develop, mainly north and east of Sleetmute. As such, this was added to the forecast.

Otherwise, the ridge of high pressure will shift eastward as a Bering front approaches. Disturbances in the developing southwest flow aloft will begin to affect the region for the weekend. This will allow for some showers to develop Both days. A few thunderstorms are also possible on Sunday as instability once again increases. At this time, the favored areas for potential thunderstorm development looks to be east of the Kuskokwim Mountains and from the Nushagak Hills northward for Sunday afternoon/evening. That said, the instability is fairly weak, as numerical guidance indicates MUCAPEs of 100-500 J/kg with Lifted Indices (LI's) of -1 to -3. This combined with less than 20 knots of 0-6km bulk shear will help mitigate thunderstorm coverage.

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3: Tonight through Monday) .

Widespread patchy fog was added to the forecast for the remainder of this afternoon through tomorrow, as area web cams and numerous land-based and ship observations indicated visibilities lingering in the 1 1/2 to 6 statue mile range. However, various satellite imagery also suggests this is patchy in nature. This may change locally overnight though, as light winds and abundant low level moisture will allow fog to develop across the Pribilof Islands, and to a lesser extend across portions of the eastern Aleutians and tip of the Alaska Peninsula.

Otherwise, a front attached to a western Pacific low, will continue its eastward trek through Saturday with widespread showers accompanying it, aided by shortwave disturbances crossing the region in the southwesterly flow aloft. By Sunday, this front begins to weaken (frontolysis), as it outruns its upper-level support, as the Pacific low reaches Siberia while weakening.

MARINE (Days 3 through 5: Sunday through Tuesday).

Gulf of Alaska: Easterly winds become Westerly as high pressure slides across the Gulf through Tue. A front enters the Western Gulf Mon. Confidence is good for small craft winds and waves East of the Shumagin Islands with Gale force winds and higher waves developing South of Kodiak Island through Tue.

Aleutians and Bering: A trough extending from a Northwest Bering low sweeps the Western Aleutians. Confidence is good for small craft winds and waves over the Western Aleutians and Bering for Sun. A front pushes through Bristol Bay. Confidence is good for small craft winds and waves over the Eastern Bering and Bristol Bay Mon and Tue.

LONG TERM FORECAST (Days 4 through 7: Monday through Thursday) .

The strong upper ridge over western Alaska Sunday weakens through Wednesday. This allows short waves spinning off of the Bering Sea trough to progress eastward across the Mainland. This pattern change will bring intrusions of moisture from the west resulting in cloudier conditions, increased chances of rain/showers, and a lowering of daytime high temperatures across the southern Mainland. Although the model trends are similar with the weakening of the upper ridge, differences in solutions will pose a problem in timing systems. So confidence is low on exact timing but fair to good on a trend toward more clouds, cooler temperatures, and chances of rain.

With the main upper low center and trough holding over the Bering Sea expect generally mostly cloudy conditions with periods of rain/showers, and gusty winds.

AFC WATCHES/WARNINGS/ADVISORIES. PUBLIC . NONE. MARINE . NONE. FIRE WEATHER . Red Flag Warning 141.

SYNOPSIS AND MODEL DISCUSSION . BC SOUTHCENTRAL ALASKA . SEB SOUTHWEST ALASKA/BERING SEA/ALEUTIANS . PD MARINE/LONG TERM . MK/BC


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HMRA2 - Kachemak Bay Reserve, AK 12 mi75 min W 8.9 58°F 1016 hPa53°F
HMSA2 12 mi23 min WSW 8 G 11 58°F 1014.2 hPa51°F
OVIA2 - 9455500 - Seldovia, AK 27 mi51 min 51°F1016.6 hPa
FILA2 - Flat Island Light, AK 43 mi45 min SSW 2.9 G 4.1 62°F 1017.5 hPa (-0.4)54°F
AMAA2 - East Amatuli Light, AK 57 mi45 min W 8 G 13 62°F 1017.4 hPa (+0.0)54°F

Wind History for Nikiski, AK
(wind in knots)    EDIT      (on/off)   Help
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
6
PM
Last
24hr
S4
S2
S4
S3
S5
SW3
S2
SE2
SE3
SE2
SE2
SE3
S3
SE2
W3
S3
SW2
SW3
SW2
S4
S5
S3
S7
S6
1 day
ago
NW1
--
S3
S6
S5
S5
S7
S7
S9
S8
S5
S6
S6
S6
S5
S6
W2
NW1
S2
W2
W4
W2
S4
SW3
2 days
ago
SW4
S5
S6
S4
G7
S4
G7
S7
S5
S3
S3
S3
SE2
SE2
S5
S4
S4
W3
W4
SW1
SW1
SW3
SW2
--
SW2
SW3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Homer, Homer Airport, AK17 mi52 minWSW 1110.00 miMostly Cloudy61°F53°F75%1016.9 hPa

Link to 5 minute data for PAHO

Wind History from AHO (wind in knots)
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
6
PM
Last 24hrW11W10W6NE5NE5E4CalmCalmCalmCalmNE3E3CalmN4NE5NE4SE4SW8W10W12
G18
W14
G18
W11W11
G15
SW11
1 day agoSW11
G16
SW10W12
G18
W4CalmCalmNE3NE4NE3NE4CalmNE4NE4E3S3W10W11W5SW14SW14SW10SW9W6SW10
2 days agoSW15SW13W9SW7W6CalmCalmE5NE5NE3NE4CalmNE5E4NE4CalmS5W9SW7SW10
G15
W10SW12
G15
SW13SW14

Tide / Current Tables for Halibut Cove, Kachemak Bay, Cook Inlet, Alaska
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Homer, Kachemak Bay, Cook Inlet, Alaska
   EDIT      (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
       (on/off)   Help Weather Map
wmap_P
GEOS Local Image of Alaska    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 Kenai, AK
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.