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Marine Weather and Tides
Version 3.4 |
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 5:22AM | Sunset 8:16PM | Monday July 22, 2019 6:20 PM EDT (22:20 UTC) | Moonrise 11:27PM | Moonset 10:44AM | Illumination 67% |  |
ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 543 Pm Edt Mon Jul 22 2019
Tonight..E winds 5 to 10 kt, becoming ne 10 to 15 kt with gusts up to 20 kt. Seas 1 foot or less, then 2 to 3 ft. Rain. Vsby 1 to 3 nm this evening.
Tue..NE winds 5 to 15 kt with gusts up to 25 kt, becoming 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Patchy fog in the morning. Showers likely. Vsby 1 to 3 nm.
Tue night..NW winds 5 to 10 kt. Seas 2 to 4 ft.
Wed..NW winds around 5 kt, becoming se in the afternoon. Seas around 2 ft.
Wed night..SW winds around 5 kt, becoming nw after midnight. Seas around 2 ft.
Thu..N winds 5 to 10 kt, becoming se in the afternoon. Seas around 2 ft.
Thu night..S winds 5 to 10 kt, becoming sw after midnight. Seas around 2 ft.
Fri..SW winds 5 to 10 kt. Seas around 2 ft.
Fri night..S winds 5 to 10 kt. Seas around 2 ft.
Sat..S winds 5 to 10 kt. Seas 2 to 3 ft.
Sat night..S winds around 10 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Tonight..E winds 5 to 10 kt, becoming ne 10 to 15 kt with gusts up to 20 kt. Seas 1 foot or less, then 2 to 3 ft. Rain. Vsby 1 to 3 nm this evening.
Tue..NE winds 5 to 15 kt with gusts up to 25 kt, becoming 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Patchy fog in the morning. Showers likely. Vsby 1 to 3 nm.
Tue night..NW winds 5 to 10 kt. Seas 2 to 4 ft.
Wed..NW winds around 5 kt, becoming se in the afternoon. Seas around 2 ft.
Wed night..SW winds around 5 kt, becoming nw after midnight. Seas around 2 ft.
Thu..N winds 5 to 10 kt, becoming se in the afternoon. Seas around 2 ft.
Thu night..S winds 5 to 10 kt, becoming sw after midnight. Seas around 2 ft.
Fri..SW winds 5 to 10 kt. Seas around 2 ft.
Fri night..S winds 5 to 10 kt. Seas around 2 ft.
Sat..S winds 5 to 10 kt. Seas 2 to 3 ft.
Sat night..S winds around 10 kt with gusts up to 20 kt. Seas 2 to 4 ft.
ANZ100 543 Pm Edt Mon Jul 22 2019
Synopsis for stonington me to merrimack river ma out to 25 nm.. A front stalled near the waters will bring rain to the area tonight into early Tuesday along with fog. High pressure then builds in through the end of the week. &&
Synopsis for stonington me to merrimack river ma out to 25 nm.. A front stalled near the waters will bring rain to the area tonight into early Tuesday along with fog. High pressure then builds in through the end of the week. &&
7 Day Forecast for Marine Location Near Kittery, ME
Hourly EDIT Helplocation: 43.08, -70.75 debug
Area Discussion for - Gray/Portland, ME
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kgyx 222145 aaa afdgyx area forecast discussion... Updated national weather service gray me 545 pm edt Mon jul 22 2019 Synopsis Low pressure will track along a stationary front over southern new england this evening, bringing potentially heavy rain to the area. A second area of low pressure will cross along this front Tuesday morning, bringing additional precipitation to southernmost portions of maine and new hampshire. High pressure will build over new england Wednesday into the weekend with temperatures and humidity slowly increasing. Near term until 6 am Tuesday morning Update... I have bumped pop up to 100 percent for areas currently raining and expected to remain that way into the evening. Otherwise the forecast remains largely unchanged. The 12z href continues to highlight SRN nh as the most likely location to see upwards of 2 inches of rain thru this evening. Will be keeping an eye on flash flood potential... But soil moisture was quite low headed into the event and as long as it all does not come down in an hour or two the ground should be able to handle it. Previous discussion... Interesting and complex weather scenario expected over the next 18 to 24 hours. Initial batch of rain with embedded heavier showers will continue across forecast area through this evening as a wave of low pressure rides northeast along a stationary front located along the southern new england coastline. While much of the heat, instability and surface moisture has shifted out of our forecast area, dynamics aloft will be the focus for precipitation above the surface. Warm air advection will continue along a narrow, but sharp h8 front located just off the coastline of maine and new hampshire through this evening. Mesoscale models continue suggest a band of heavy rain will extend from southern new hampshire to along or near the coastline of maine. Thunderstorms should be confined to mainly south of the new hampshire massachusetts border. There may be a lull in the precipitation late this evening before an additional round of rainfall enters the region from a second wave of low pressure after midnight tonight. Some of the synoptic and mesoscale models keep this second area of rainfall over southern new england, while others indicated the precipitation crosses southern portions of the region. These subtle differences play a role as to whether the second batch of precipitation could produce localized flooding over southern areas of new hampshire, extending into far southwest maine. Will continue to monitor for this second area. Antecedent conditions have become dry with the very hot weather conditions over the last few days, however localized heavy downpours in our high precipitable water atmosphere, combined with modest atmosphere dynamics could produce poor drainage and low lying flooding in a few locations. Have highlighted the potential for maximum rainfall in dss products will be over southern new hampshire with the euro indicating some locations with locally just over 3 inches of rainfall. Some flooding may occur. This axis of heavy rainfall will need to be monitored for potentially extending into far southwest maine. We remain in a slight risk in the excessive rainfall outlook. Much cooler temperatures during the overnight hours can be expected. Lows in the mid 50s to lower 60s will give a relief from the recent heat. Rainfall and narrowing dew point |
depressions will allow for the development of fog as well. Short term 6 am Tuesday morning through Tuesday night Showers may briefly continue in southern portions of the forecast area early Tuesday, bringing more showers, some of them heavy, to the region. The tendency thereafter will be for precipitation to shift gradually to the south and east off the coastline. With plenty of clouds in place, temperatures will be limited to the 70s for highs. Clearing and seasonably cool conditions expected for Tuesday night as low pressure heads into the canadian maritimes. Long term Wednesday through Monday The week starts with an upper level trough to our west which will slowly weaken and move east through the end of the week. With building high pressure expect little in the way of rainfall, and only a few days have a chance of showers. Temperatures will remain near average as the warmth has departed to the east. Wednesday low pressure will pass south and east of us across the gulf of maine. This will keep the land area under a most westerly flow and limit the seabreeze to just the immediate coastline, allowing temperatures inland to reach 80s south to mid 70s north. Thursday and Friday will see high pressure building in with temperatures continuing to increase. Expect a seabreeze to limit temperatures through the immediate coastline. Saturday Sunday - a cold front beings to approach from quebec. This may be close enough to touch off a few thunderstorms in the mountains on Saturday afternoon, but with lapse rates marginal do not expect any severe. Aviation 22z Monday through Saturday Short term... Expect ifr conditions in many areas tonight over southern and central areas due to low clouds, as well as rain and fog. Additional showers may cross the region over southern areas Tuesday morning, followed by conditions returning toVFR. Long term...VFR conditions will continue from Wednesday through the weekend as high pressure remains in control. Marine Short term... Low pressure tracks along a stalled front to our south tonight with a second system early Tuesday bringing rain and fog to the waters. Winds and seas should stay below advisory levels tonight. Long term... Low pressure will pass southeast of the gulf of maine on Wednesday. Afterwards high pressure will build in through the weekend with calm winds and seas. Equipment The sugarloaf nwr transmitter is off the air until further notice. This will be an extended outage as the tower, which was severely damaged in a winter storm, is rebuilt. Gyx watches warnings advisories Me... None. Nh... None. Marine... None. Near term... Legro |
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 |
| BGXN3 - Great Bay Reserve, NH | 4 mi | 96 min | NNE 1.9 | 70°F | 1012 hPa | 68°F | ||
| IOSN3 - Isle of Shoals, NH | 10 mi | 81 min | Calm G 1.9 | 68°F | 1011.8 hPa (+0.4) | 65°F | ||
| 44030 - Buoy B0102 - Western Maine Shelf | 18 mi | 77 min | N 7.8 G 9.7 | 69°F | 69°F | 2 ft | 1011.6 hPa | |
| WELM1 - 8419317 - Wells, ME | 19 mi | 51 min | NNE 7 G 8 | 67°F | 59°F | 1011.5 hPa | ||
| WEXM1 - Wells Reserve, ME | 21 mi | 81 min | N 1 | 68°F | 66°F | |||
| 44098 - Jeffrey's Ledge, NH (160) | 36 mi | 43 min | 68°F | 2 ft | ||||
| 44029 - Buoy A0102 - Mass. Bay/Stellwagen | 40 mi | 77 min | NNE 12 G 16 | 70°F | 69°F | 2 ft | 1010.5 hPa | |
| 44007 - PORTLAND 12 NM Southeast of Portland,ME | 45 mi | 31 min | NE 1.9 G 3.9 | 67°F | 68°F | 2 ft | 1011.1 hPa (-0.0) | 63°F |
| CASM1 - 8418150 - Portland, ME | 48 mi | 51 min | 69°F | 61°F |
Wind History for Wells, ME
(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 | N G11 | N G9 | NW | W | NW G8 | NW | NW G8 | NW G10 | NW | NE | NW | NE | N | N G11 | N | NE G7 | E | SE G10 | NE | E | N | N G12 | N | -- |
| 1 day ago | S | S | NW | E | E | W G7 | NW | W | W | W G9 | NW G8 | W G15 | W G13 | W G10 | W G15 | NW G19 | W G16 | NW G17 | NW G18 | NW G17 | NW G17 | |||
| 2 days ago | S G16 | S | NE | NE | E | SW | W | W G9 | W G10 | W G11 | W G12 | NW | NW G10 | SW | SW | NW | N | N G8 | S G11 | S G11 | S G18 | S |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Pease Air Force Base / Portsmouth, NH | 4 mi | 85 min | N 7 | 3.00 mi | Light Rain Fog/Mist | 69°F | 64°F | 84% | 1011.7 hPa |
| Rochester - Skyhaven Airport, NH | 16 mi | 30 min | E 5 | 5.00 mi | Light Rain Fog/Mist | 67°F | 64°F | 91% | 1011 hPa |
| Sanford, Sanford Regional Airport, ME | 22 mi | 25 min | N 0 | 3.00 mi | Rain Fog/Mist | 66°F | 63°F | 90% | 1012.2 hPa |
Wind History from PSM (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 24hr | NW | NW | W | Calm | Calm | W | W | W | W | Calm | NW | N | NE | E | NE | E | NE | N | E | NE | N | NE | ||
| 1 day ago | SE | S | S | SW | SW | Calm | SW | SW | SW | SW | W | SW | SW | W | W | SW | SW | W G17 | W G14 | W G19 | W | W | NW | W |
| 2 days ago | SW | S | SW | SW | SW | Calm | SW | W | SW | W | W | W | SW | W | SW | W | W | W | W | SW | SW | SW | SW | SE |
Tide / Current Tables for Portsmouth, Portsmouth Harbor, New Hampshire
EDIT Weekend mode (on/off) (on/off) Help One Week of DataPortsmouth
Click for Map
Mon -- 03:34 AM EDT 7.92 feet High Tide
Mon -- 05:23 AM EDT Sunrise
Mon -- 09:45 AM EDT 0.60 feet Low Tide
Mon -- 10:45 AM EDT Moonset
Mon -- 04:06 PM EDT 7.52 feet High Tide
Mon -- 08:15 PM EDT Sunset
Mon -- 10:02 PM EDT 1.20 feet Low Tide
Mon -- 11:26 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 03:34 AM EDT 7.92 feet High Tide
Mon -- 05:23 AM EDT Sunrise
Mon -- 09:45 AM EDT 0.60 feet Low Tide
Mon -- 10:45 AM EDT Moonset
Mon -- 04:06 PM EDT 7.52 feet High Tide
Mon -- 08:15 PM EDT Sunset
Mon -- 10:02 PM EDT 1.20 feet Low Tide
Mon -- 11:26 PM EDT Moonrise
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 |
| 3.7 | 5.4 | 6.9 | 7.8 | 7.8 | 7.1 | 5.6 | 3.7 | 2 | 0.9 | 0.6 | 1.2 | 2.5 | 4.1 | 5.8 | 7 | 7.5 | 7.2 | 6.2 | 4.6 | 2.9 | 1.6 | 1.2 | 1.5 |
Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
EDIT (on/off) Help One Week of DataPortsmouth Harbor Entrance
Click for Map
Mon -- 01:17 AM EDT 1.05 knots Max Flood
Mon -- 04:41 AM EDT -0.00 knots Slack
Mon -- 05:23 AM EDT Sunrise
Mon -- 07:51 AM EDT -1.82 knots Max Ebb
Mon -- 10:44 AM EDT Moonset
Mon -- 11:53 AM EDT 0.00 knots Slack
Mon -- 01:47 PM EDT 1.08 knots Max Flood
Mon -- 05:34 PM EDT -0.00 knots Slack
Mon -- 08:14 PM EDT Sunset
Mon -- 08:16 PM EDT -1.52 knots Max Ebb
Mon -- 11:25 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 01:17 AM EDT 1.05 knots Max Flood
Mon -- 04:41 AM EDT -0.00 knots Slack
Mon -- 05:23 AM EDT Sunrise
Mon -- 07:51 AM EDT -1.82 knots Max Ebb
Mon -- 10:44 AM EDT Moonset
Mon -- 11:53 AM EDT 0.00 knots Slack
Mon -- 01:47 PM EDT 1.08 knots Max Flood
Mon -- 05:34 PM EDT -0.00 knots Slack
Mon -- 08:14 PM EDT Sunset
Mon -- 08:16 PM EDT -1.52 knots Max Ebb
Mon -- 11:25 PM EDT Moonrise
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 |
| 0.5 | 1 | 0.9 | 0.5 | 0.2 | -0.1 | -0.8 | -1.6 | -1.8 | -1.5 | -1.2 | -0.7 | 0.1 | 0.9 | 1.1 | 0.8 | 0.4 | 0.2 | -0.3 | -1 | -1.5 | -1.4 | -1.1 | -0.7 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
GOES Local Image of Northeast 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 Gray/Portland, ME (18,4,5,8)
(on/off) Help
Ground Weather Radar Station Portland, ME
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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. |