|
Marine Weather and Tides
Version 3.4 |
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues. 6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported. 5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive. |
| Sunrise 5:23AM | Sunset 8:28PM | Saturday April 21, 2018 3:09 PM AKDT (23:09 UTC) | Moonrise 9:56AM | Moonset 2:05AM | Illumination 41% |  |
Marine Forecasts
EDIT (on/off) Help| PKZ033 Southern Chatham Strait- 809 Am Akdt Sat Apr 21 2018 Today..W wind 10 kt becoming S in the morning, then increasing to 15 kt. Seas building to 3 ft in the afternoon. NEar ocean entrances, seas 7 ft. Tonight..SE wind 15 kt. Gusts to 35 kt late. Seas 4 ft, except 7 ft near ocean entrances. Rain showers in the evening, then rain late. Sun..SE wind 25 kt. Gusts to 40 kt. Seas 5 ft, except 9 ft near ocean entrances. Rain. Sun night..SE wind 25 kt. Gusts to 40 kt. Seas 5 ft, except 12 ft near ocean entrances. Rain. Mon..SE wind 25 kt becoming S 15 kt. Seas 4 ft. Tue..S wind 25 kt. Seas 5 ft. Wed..SW wind 15 kt. Seas 3 ft. |
7 Day Forecast for Marine Location Near Port Alexander, AK
Hourly EDIT Helplocation: 56.17, -134.67 debug
Area Discussion for -
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxak67 pajk 212251 afdajk southeast alaska forecast discussion national weather service juneau ak 251 pm akdt Sat apr 21 2018 Short term Some dense areas of fog arose this early morning in peril strait, gustavus, and hoonah, before burning off mid- morning. Residual showers persisted throughout the afternoon (and even some ice pellets), as yesterday's frontal system exits and drags the precip with it. Our next system we're looking at will make its entrance late Sunday into Monday, followed by another quick band of frontal precip late Monday night into early Tuesday. Temperatures at the 500 mb level are still in the mid -20c range, which are below normal for this time of year. Temperatures Sunday into early Monday morning won't be following a diurnal curve, as some warmer, borderline-unstable air sneaks in. Maximum temperatures were lowered into Monday, following rain soaked cooling and some pockets of CAA that slip in behind the front. Minimum temperatures were raised for tonight especially, as cloud cover prevails for most of the short term. Temperature edits were done through a GFS blend and some local edits using MOS guidance. Rain showers will become more widespread throughout the panhandle into tonight with some snow showers mixing in over the northern panhandle. QPF will be 2-3 standard deviations above normal during this timeframe. Pop was blended with some sref, akhireswarw, and gfs and QPF the akhireswarw and gfs, respectively. Pressure adjustments were made using a nam ECMWF blend to better capture the "waves" associated with the second front. The biggest change to the short term was increasing winds locally late Sunday night into Monday and increasing to gales along the outer coast. Model agreement has been doing relatively well, however, the exact timing and details of these next waves may need further fine |
tuning. Long term Monday through Saturday as of 10 pm Friday upper trof will move NE across the area mon-tue. Another trof will amplify over the n-central pac into the E bering sea. Ridging will build downstream over western canada. Models have trended toward a stronger ridge, and this will likely have an effect on a system moving toward the area for late Tue into early thu. Still some important model differences to work out for this system and any following systems later in the week. Ended up basically staying with current forecast in long range, waiting to see if we get better agreement especially on tue-wed system. Occluded front will be moving slowly E across the area Mon and mon night. Looking like most precip with this front will fall over the nw half of the area. May have some gale force winds over the ne gulf early Mon but front will be weakening. Weak trof should move in behind the front tue. Following occluded front appears to be weaker and holding up further W in latest model runs, but models have been inconsistent with it. Big problem seems to be how strong ridging builds over and E of the area. If the current models maintain the stronger ridge idea, later shifts may need to keep the front further w along with the stronger winds and precip. After Wed night, forecast confidence drops off even more as the model differences only increase. Overall, looking more like the southern panhandle will not get as much rain as previously thought, which may not alleviate the abnormally dry conditions there. Ajk watches warnings advisories Public... None. Marine... Gale warning for pkz041>043-051-052. Small craft advisory for pkz022-033-035-036-053. Ss rwt visit us at http: |
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 |
| PLXA2 - 9451054 - Port Alexander, AK | 5 mi | 58 min | SSW 6 G 9.9 | 46°F | 44°F | 1020 hPa | ||
| FFIA2 - Five Finger, AK | 94 mi | 70 min | SE 13 G 15 | 40°F | 1019.5 hPa (+2.7) |
Wind History for Port Alexander, AK
(wind in knots) EDIT (on/off) Help| 3 PM | 4 PM | 5 PM | 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 | |
| Last 24hr | NW | N G5 | NE G8 | N G6 | -- | NE | NW | -- | -- | NW | -- | N | -- | N | NW | -- | NE | S G4 | NE | SE | -- | S G15 | W G10 | S G9 |
| 1 day ago | SW G26 | S G17 | S G19 | S G14 | S G8 | S G11 | S G14 | SW G10 | S | SW G8 | S G6 | SW G8 | E | SW G7 | SW | NE | W | NW | W | E | S | S | -- | N |
| 2 days ago | S G14 | S G15 | S G10 | S G9 | S G12 | S G15 | S G12 | S G10 | S G14 | S G5 | S G14 | -- | S G14 | S G5 | S G5 | S G6 | SE G4 | N | S G16 | S G20 | S G16 | S G17 | S G24 | SW G15 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
Wind History from AAP (wind in knots)
| 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 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 | |
| Last 24hr | NW G20 | N G25 | Calm | |||||||||||||||||||||
| 1 day ago | NE G25 | NE G15 | ||||||||||||||||||||||
| 2 days ago | W | N | Calm | E |
Tide / Current Tables for Cape Ommaney, Baranof Island, Alaska
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Cape Ommaney Click for Map Sat -- 02:04 AM AKDT Moonset Sat -- 04:41 AM AKDT 10.04 feet High Tide Sat -- 05:37 AM AKDT Sunrise Sat -- 09:56 AM AKDT Moonrise Sat -- 11:44 AM AKDT -0.36 feet Low Tide Sat -- 06:21 PM AKDT 7.93 feet High Tide Sat -- 08:18 PM AKDT Sunset Sat -- 11:47 PM AKDT 3.89 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 4 | 5.4 | 7.1 | 8.7 | 9.8 | 10 | 9.2 | 7.6 | 5.4 | 3.1 | 1.1 | -0.1 | -0.3 | 0.4 | 2 | 3.9 | 5.8 | 7.2 | 7.9 | 7.8 | 7 | 5.9 | 4.9 | 4.1 |
Tide / Current Tables for Port Alexander, Baranof Island, Alaska
EDIT (on/off) Help One Week of Data| Port Alexander Click for Map Sat -- 02:04 AM AKDT Moonset Sat -- 04:52 AM AKDT 11.27 feet High Tide Sat -- 05:36 AM AKDT Sunrise Sat -- 09:56 AM AKDT Moonrise Sat -- 11:45 AM AKDT -0.57 feet Low Tide Sat -- 06:31 PM AKDT 9.30 feet High Tide Sat -- 08:18 PM AKDT Sunset Sat -- 11:50 PM AKDT 3.73 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 3.9 | 5.5 | 7.5 | 9.5 | 10.8 | 11.3 | 10.5 | 8.7 | 6.2 | 3.5 | 1.2 | -0.2 | -0.5 | 0.3 | 2 | 4.3 | 6.5 | 8.2 | 9.2 | 9.2 | 8.3 | 6.8 | 5.2 | 4.1 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
GOES 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
Wind Forecast for (19,4,5,8)
(on/off) Help |  |  |
Ground Weather Radar Station Biorka Is., AK
(on/off) Help
Ad by Google
|
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 numerious 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. |