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Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 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 5:52AM | Sunset 7:40PM | Tuesday August 20, 2019 12:13 PM EDT (16:13 UTC) | Moonrise 10:18PM | Moonset 10:36AM | Illumination 75% |  |
ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 1022 Am Edt Tue Aug 20 2019
This afternoon..NE winds around 5 kt, becoming se. Seas around 2 ft.
Tonight..S winds 5 to 10 kt. Seas around 2 ft.
Wed..SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. A chance of showers in the morning, then showers and tstms likely in the afternoon. Some tstms may be severe with damaging winds and large hail.
Wed night..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers and tstms likely in the evening, then a chance of showers after midnight. Some tstms may produce damaging winds and large hail in the evening.
Thu..SW winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers.
Thu night..W winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
Fri..W winds around 10 kt. Seas around 2 ft.
Fri night..NW winds around 10 kt. Seas around 2 ft.
Sat..NW winds 5 to 10 kt. Seas 2 to 3 ft.
Sat night..NW winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms.
This afternoon..NE winds around 5 kt, becoming se. Seas around 2 ft.
Tonight..S winds 5 to 10 kt. Seas around 2 ft.
Wed..SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. A chance of showers in the morning, then showers and tstms likely in the afternoon. Some tstms may be severe with damaging winds and large hail.
Wed night..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Showers and tstms likely in the evening, then a chance of showers after midnight. Some tstms may produce damaging winds and large hail in the evening.
Thu..SW winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers.
Thu night..W winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
Fri..W winds around 10 kt. Seas around 2 ft.
Fri night..NW winds around 10 kt. Seas around 2 ft.
Sat..NW winds 5 to 10 kt. Seas 2 to 3 ft.
Sat night..NW winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms.
ANZ100 1022 Am Edt Tue Aug 20 2019
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure will build over the region today and will slide off to the southeast tonight. Return flow will bring a very warm and humid airmass into the region on Wednesday ahead of an approaching cold front. Low pressure moving northeast through quebec Wednesday night will drive a trailing cold front through the region on Thursday. A trough of low pressure will linger over the area Thursday night and Friday. High pressure will build in from the west Friday night through Saturday night and will hold over the region on Sunday. &&
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure will build over the region today and will slide off to the southeast tonight. Return flow will bring a very warm and humid airmass into the region on Wednesday ahead of an approaching cold front. Low pressure moving northeast through quebec Wednesday night will drive a trailing cold front through the region on Thursday. A trough of low pressure will linger over the area Thursday night and Friday. High pressure will build in from the west Friday night through Saturday night and will hold over the region on Sunday. &&
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 201429 afdgyx area forecast discussion national weather service gray me 1029 am edt Tue aug 20 2019 Synopsis High pressure will build over the region today and will slide off to the southeast tonight. Return flow will bring a very warm and humid airmass into the region on Wednesday ahead of an approaching cold front. Low pressure moving northeast through quebec Wednesday night will drive a trailing cold front through the region on Thursday. A trough of low pressure will linger over the area Thursday night and Friday. High pressure will build in from the west Friday night through Saturday night and will hold over the region on Sunday. Near term until 6 pm this evening 1030 am update... Very little change to the going forecast this morning. Cloudless or near-cloudless skies should continue into the afternoon hours with a seabreeze developing at the coast. 700 am update... patchy light valley fog is quickly burning off across the region and aside from a few high clouds in southern zones later today... Should see sunny skies through this evening. Have mainly just tweaked area temps tds with this update and no other changes planned attm. Prev disc... high pressure will build over the region today producing mostly sunny skies and much less humidity. Highs will range from the mid 70s north to the mid 80s south. Short term 6 pm this evening through 6 pm Wednesday High pressure will shift off to the southeast overnight with return flow bringing a return of humidity to the region. After a mostly clear evening expect variable clouds after midnight along with patchy valley fog. Lows will range through the 50s across much of the forecast area with lower to mid 60s in the far south. Showers and thunderstorms will be likely on Wednesday as a warm front lifts into southern new england ahead of an approaching shortwave. Expect increasing shear during the day with widespread thunderstorms breaking out in the afternoon and persisting through the evening hours. Shear profiles will be sufficient for rotating storms and some super cells especially |
during the late afternoon as better dynamics advect in from the west. SPC has entire forecast area in a marginal risk with a slight risk from western maine through a good portion of new hampshire. Damaging winds... Hail and isolated tornadoes will be possible with these storms. High temperatures will range from the upper 70s to mid 80s. Long term Wednesday night through Monday Unsettled weather to start the long term period then several days of fantastic weather. Wednesday night a warm front will be lifting north. Showers and a few thunderstorm will be prevalent through the night as the front treks north. High precipitable water will result in some localized heavy rain. The cold front will move around noon on Thursday. Showers are possible and with isolated thunder on Thursday. Dewpoint temperatures will slowly fall during the day Thursday. Friday will begin the much cooler and drier air with highs in the 60s north and 70s south with dewpoints in the upper 40s to mid 50s. There is the chance of a shower in the mountains as the trough moves overhead. This weather holds sway over the forecast area through Tuesday as surface high pressure and a ridge aloft keep the heat and humidity away. Aviation 15z Tuesday through Saturday Short term...VFR today through tonight. Areas of MVFR ceilings vsby in showers and thunderstorms on Wednesday. Long term... Expect plenty of MVFR ifr Wednesday night into Thursday morning in showers and thunderstorms. Thursday expect mostlyVFR except MVFR in passing showers. FridayVFR with local MVFR in a shower at hie during the afternoon. Saturday expect vfr conditions. Marine Short term... No flags. Long term... SCA conditions are possible Wednesday night and Thursday. Gyx watches warnings advisories Me... None. Nh... None. Marine... None. |
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 |
| CMLN3 | 3 mi | 189 min | NW 7 | 65°F | ||||
| BGXN3 - Great Bay Reserve, NH | 4 mi | 88 min | WSW 2.9 | 79°F | 1019 hPa | 68°F | ||
| IOSN3 - Isle of Shoals, NH | 10 mi | 73 min | N 6 G 6 | 75°F | 1017.8 hPa (+0.6) | 62°F | ||
| 44073 | 12 mi | 129 min | NW 3.9 G 3.9 | 68°F | ||||
| 44030 - Buoy B0102 - Western Maine Shelf | 18 mi | 129 min | NNW 3.9 G 3.9 | 69°F | 68°F | 2 ft | 1018.1 hPa | |
| WELM1 - 8419317 - Wells, ME | 19 mi | 73 min | Calm G 1.9 | 81°F | 67°F | 1018.5 hPa (+0.5) | ||
| WEXM1 - Wells Reserve, ME | 21 mi | 73 min | NW 2.9 | 80°F | 60°F | |||
| 44098 - Jeffrey's Ledge, NH (160) | 36 mi | 65 min | 67°F | 2 ft | ||||
| 44029 - Buoy A0102 - Mass. Bay/Stellwagen | 40 mi | 129 min | W 1.9 G 3.9 | 69°F | 63°F | 1 ft | 1018.3 hPa | |
| 44007 - PORTLAND 12 NM Southeast of Portland,ME | 45 mi | 83 min | E 1.9 G 3.9 | 70°F | 69°F | 2 ft | 1017.6 hPa (+0.6) | 65°F |
| CASM1 - 8418150 - Portland, ME | 48 mi | 73 min | 79°F | 64°F |
Wind History for Wells, ME
(wind in knots) EDIT (on/off) Help| 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 | S | S | -- | S | S | SW G12 | W G8 | W G7 | SE | W | W | NW | W G10 | NW G14 | NW G8 | W G8 | NW G11 | NW | NW G8 | NW G8 | NW G9 | N G8 | N G6 | -- |
| 1 day ago | E | E | SE | SE | SE | E | SE | SE | S | S | S | E | E | NE | SE | SW | -- | W | NW | W | W | W G6 | SE G7 | S G11 |
| 2 days ago | SW | S | S G8 | S | E | SE | SE G4 | SE | SE | E | SE | E | SE | S | -- | SW | W | SW | W | -- | NW | NW | SE | SE |
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 |
| Pease Air Force Base / Portsmouth, NH | 4 mi | 77 min | N 5 | 10.00 mi | A Few Clouds | 81°F | 61°F | 51% | 1018.1 hPa |
| Rochester - Skyhaven Airport, NH | 16 mi | 82 min | Var 3 | 10.00 mi | Fair | 80°F | 60°F | 51% | 1018 hPa |
| Sanford, Sanford Regional Airport, ME | 22 mi | 77 min | N 0 | 10.00 mi | Fair | 79°F | 57°F | 49% | 1018.8 hPa |
Link to 5 minute data for KPSM
Wind History from PSM (wind in knots)
| 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 | 12 PM | |
| Last 24hr | W | SW | W | N | W | Calm | SW | SW | W | W | NW | W | W | Calm | NW | NW | N | N | W | |||||
| 1 day ago | Calm | E | SE | SE | SE | SE | SE | SE | E | Calm | Calm | W | W | SW | SW | SW | SW | |||||||
| 2 days ago | SE | SE | SE | E | SE | E | E | E | SE | E | E | Calm | SE | Calm | Calm | Calm | Calm | Calm | W | W | W | SW | Calm |
Tide / Current Tables for Portsmouth, Portsmouth Harbor, New Hampshire
EDIT Weekend mode (on/off) (on/off) Help One Week of DataPortsmouth
Click for Map
Tue -- 03:01 AM EDT 7.89 feet High Tide
Tue -- 05:53 AM EDT Sunrise
Tue -- 09:05 AM EDT 0.62 feet Low Tide
Tue -- 10:35 AM EDT Moonset
Tue -- 03:24 PM EDT 7.76 feet High Tide
Tue -- 07:38 PM EDT Sunset
Tue -- 09:25 PM EDT 0.86 feet Low Tide
Tue -- 10:17 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 03:01 AM EDT 7.89 feet High Tide
Tue -- 05:53 AM EDT Sunrise
Tue -- 09:05 AM EDT 0.62 feet Low Tide
Tue -- 10:35 AM EDT Moonset
Tue -- 03:24 PM EDT 7.76 feet High Tide
Tue -- 07:38 PM EDT Sunset
Tue -- 09:25 PM EDT 0.86 feet Low Tide
Tue -- 10:17 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 |
| 4.5 | 6.2 | 7.5 | 7.9 | 7.5 | 6.3 | 4.5 | 2.6 | 1.2 | 0.6 | 1 | 2 | 3.7 | 5.5 | 6.9 | 7.7 | 7.6 | 6.7 | 5.2 | 3.4 | 1.8 | 0.9 | 1 | 1.8 |
Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
EDIT (on/off) Help One Week of DataPortsmouth Harbor Entrance
Click for Map
Tue -- 12:49 AM EDT 1.11 knots Max Flood
Tue -- 04:05 AM EDT -0.00 knots Slack
Tue -- 05:53 AM EDT Sunrise
Tue -- 07:19 AM EDT -1.82 knots Max Ebb
Tue -- 10:35 AM EDT Moonset
Tue -- 11:14 AM EDT 0.00 knots Slack
Tue -- 01:14 PM EDT 1.19 knots Max Flood
Tue -- 04:47 PM EDT -0.00 knots Slack
Tue -- 07:37 PM EDT Sunset
Tue -- 07:44 PM EDT -1.66 knots Max Ebb
Tue -- 10:17 PM EDT Moonrise
Tue -- 11:38 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 12:49 AM EDT 1.11 knots Max Flood
Tue -- 04:05 AM EDT -0.00 knots Slack
Tue -- 05:53 AM EDT Sunrise
Tue -- 07:19 AM EDT -1.82 knots Max Ebb
Tue -- 10:35 AM EDT Moonset
Tue -- 11:14 AM EDT 0.00 knots Slack
Tue -- 01:14 PM EDT 1.19 knots Max Flood
Tue -- 04:47 PM EDT -0.00 knots Slack
Tue -- 07:37 PM EDT Sunset
Tue -- 07:44 PM EDT -1.66 knots Max Ebb
Tue -- 10:17 PM EDT Moonrise
Tue -- 11:38 PM EDT 0.00 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 |
| 0.9 | 1.1 | 0.7 | 0.3 | 0 | -0.5 | -1.3 | -1.8 | -1.7 | -1.3 | -0.8 | -0.2 | 0.6 | 1.2 | 1 | 0.6 | 0.2 | -0.1 | -0.8 | -1.5 | -1.6 | -1.3 | -0.9 | -0.4 |
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 (12,3,4,5)
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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. |