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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 5:54AM | Sunset 7:45PM | Monday August 19, 2019 12:05 PM EDT (16:05 UTC) | Moonrise 9:59PM | Moonset 9:42AM | Illumination 83% |  |
ANZ230 Boston Harbor- 1042 Am Edt Mon Aug 19 2019
This afternoon..S winds 10 to 15 kt. Waves 1 foot or less.
Tonight..SW winds 5 to 10 kt, becoming W after midnight. Waves 1 foot or less. A chance of showers and tstms. Some tstms may produce gusty winds and heavy rainfall.
Tue..NW winds 5 to 10 kt, becoming E in the afternoon. Waves 1 foot or less.
Tue night..S winds around 5 kt. Waves 1 foot or less. A chance of showers and tstms.
Wed and Wed night..SW winds 5 to 10 kt. Waves around 2 ft. A chance of showers and tstms.
Thu..W winds 5 to 10 kt. Waves 1 foot or less. A chance of showers and tstms.
Fri..W winds around 5 kt. Waves 1 foot or less. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
This afternoon..S winds 10 to 15 kt. Waves 1 foot or less.
Tonight..SW winds 5 to 10 kt, becoming W after midnight. Waves 1 foot or less. A chance of showers and tstms. Some tstms may produce gusty winds and heavy rainfall.
Tue..NW winds 5 to 10 kt, becoming E in the afternoon. Waves 1 foot or less.
Tue night..S winds around 5 kt. Waves 1 foot or less. A chance of showers and tstms.
Wed and Wed night..SW winds 5 to 10 kt. Waves around 2 ft. A chance of showers and tstms.
Thu..W winds 5 to 10 kt. Waves 1 foot or less. A chance of showers and tstms.
Fri..W winds around 5 kt. Waves 1 foot or less. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
ANZ200 1042 Am Edt Mon Aug 19 2019
Synopsis for massachusetts and rhode island coastal waters.. Southwest winds will blow across the waters this afternoon and evening ahead of an approaching cold front. This front will pass across the waters after midnight tonight. High pres builds over the waters Tue, then moves offshore Tue night. Another cold front will cross the waters sometime late Thu and be followed by high pres from the great lakes Fri into next weekend. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the current hazards link above the map on the left.
Synopsis for massachusetts and rhode island coastal waters.. Southwest winds will blow across the waters this afternoon and evening ahead of an approaching cold front. This front will pass across the waters after midnight tonight. High pres builds over the waters Tue, then moves offshore Tue night. Another cold front will cross the waters sometime late Thu and be followed by high pres from the great lakes Fri into next weekend. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the current hazards link above the map on the left.
7 Day Forecast for Marine Location Near Blodgett Landing, NH
Hourly EDIT Helplocation: 43.39, -72.06 debug
Area Discussion for - Gray/Portland, ME
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kgyx 191327 afdgyx area forecast discussion national weather service gray me 927 am edt Mon aug 19 2019 Synopsis A cold front will cross the region today and will be followed by high pressure building in from the west overnight. High pressure will crest over the region on Tuesday before shifting offshore to the southeast. A weak disturbance will push east through southern new england late Tuesday night and early Wednesday. Weak low pressure will slowly move northeast through southern quebec Wednesday night and will drive a trailing cold front through the region after midnight. A secondary trough of low pressure will drop southeast through the region Thursday night and Friday. High pressure will gradually build in from the west over the weekend. Near term until 6 pm this evening 925 am update... Some relatively minor adjustments to the forecast this morning based on latest trends in radar and satellite data as well as info from latest cams. Skies have cleared out across nh and this will allow the atmosphere to destabilize. An area of weakening showers will cross northern nh over the next couple of hours, but measurable is unlikely at most locations. Otherwise, low clouds and fog will continue to lift across central and midcoast zones except for perhaps the immediate midcoast where they should hang on longer. For this afternoon, latest mesoscale models continue to show a broken line of storms moving across the forecast area between 2 and 7 pm. Not all areas will get one, but strong gusty winds will be possible in the strongest cells. Previously... 700 am update... warm front currently pushing through eastern zones with the remainder of last nights showers. Farther south... Ocean stratus beginning to thin out across southeast new hampshire and this trend will continue to the north and east into southern interior maine through mid morning as boundary layer winds turn more southwesterly and mixing picks up. Have adjusted pops and wx based on latest radar trends and tweaked area temps tds. No other changes planned attm. Prev disc... Warm front currently lifting northeast through central maine early this morning and expect associated showers to be exiting eastern zones by daybreak or shortly after. Another line of convection ahead of an approaching cold front currently moving through far western new york and the hrrr pretty much kills this activity off as it moves into western new england later this morning. Expect convection to redevelop early this afternoon as the front pushes into northwest new england. Spc has all of the forecast area in a marginal risk for today. Best shear will be found in northern zones this afternoon as daytime heating generates some moderate to strong cape. Would expect potential wind damage with stronger cells in northern zones as shear combines with pwat's of 1.5 inches or better, resulting in good precip loading in more organized lines or line segments. Farther south expect more scattered storms with the potential for heavy rain and damaging winds. Have highlighted |
the potential damaging winds and heavy rain in the zones. Mostly sunny skies this morning will quickly boost temperatures through the 80s to near 90 in far southern new hampshire. Getting some marginal apparent temps of 95 to 97 in the manchester nashua section of southern new hampshire but impact should be minimal and brief so holding off on heat advisories at this time. Short term 6 pm this evening through 6 pm Tuesday Cold front will quickly push east of the region this evening with any convection shifting east of the area through midnight. Expect clearing skies and light winds overnight with patchy valley fog in the usual spots. Lows overnight will range from the mid 50s north to the mid 60s south. Cooler and much drier air will move into the region on Tuesday as high pressure builds in from the west. Looking for mostly sunny skies and highs from the mid 70s north to the mid 80s south. Long term Tuesday night through Sunday A bit unsettled early in the long term but cooler and drier air will eventually arrive for the weekend. For Tuesday night a frontal system to the south of the forecast area will move back north with increasing chance of showers and thunderstorms through Wednesday night. Dewpoint temperatures will climb back to near 70 Wednesday afternoon. A cold front will move through the forecast area before Thursday. The timing on this front is a bit in question. The later in the day with frontal passage the greater the chance for afternoon thunderstorms. The ECMWF has the front moving through a bit later than the gfs. For now I have the higher pops in the morning with a low chance pop in the afternoon. Still a warm day Thursday but dewpoint temperatures will be a bit more comfortable. The cooler and drier air sets in for Friday with dewpoints in the upper 40s to mid 50s. Showers possible in the mountains Friday afternoon. Saturday through Monday should be quite pleasant with high temperatures in the 70s and low humidity. Aviation 14z Monday through Friday Short term... Ifr lifr ceilings and vsby in coastal and southern interior sections of maine and new hampshire this morning... Improving toVFR this afternoon.VFR tonight and Tuesday. Long term... Expect occasional MVFR ifr in showers and thunderstorms Wednesday and Thursday. Friday possible MVFR in afternoon showers at hie butVFR expected elsewhere. Marine Short term... No flags. Long term... SCA possible Wednesday and Thursday. Gyx watches warnings advisories Me... None. Nh... None. Marine... None. Near term update... Ekster |
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 | 69 mi | 81 min | SW 4.1 | 83°F | 1014 hPa | 73°F | ||
| WELM1 - 8419317 - Wells, ME | 79 mi | 48 min | SSE 7 G 9.9 | 71°F | 66°F | 1014.2 hPa | ||
| WEXM1 - Wells Reserve, ME | 80 mi | 66 min | SSE 2.9 | 77°F | 72°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 | 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 |
| 1 day 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 |
| 2 days ago | SE | SE | SE | S G10 | S | S | S G10 | S G10 | S | SE | S | SE | SE | SE | S | S | S | S | S | S | S | S | S | S |
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 |
| Lebanon Municipal Airport, NH | 21 mi | 2.2 hrs | S 6 | 10.00 mi | Partly Cloudy | 76°F | 66°F | 72% | 1012.7 hPa |
Link to 5 minute data for KLEB
Wind History from LEB (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 | Calm | NW | Calm | W | SE | Calm | Calm | NE | Calm | S | SE | Calm | S | Calm | Calm | Calm | Calm | Calm | S | S | S | SW | SW | |
| 1 day ago | S | S | S | SE | SE | S | Calm | Calm | Calm | Calm | Calm | SE | S | Calm | SW | S | S | Calm | Calm | Calm | Calm | Calm | ||
| 2 days ago | SW | S | S | Calm | SE | S | S | S | E | Calm | Calm | Calm | Calm | Calm | Calm | NW | E | N | N | Calm | SW |
Tide / Current Tables for Squamscott River RR. Bridge, New Hampshire
EDIT Weekend mode (on/off) (on/off) Help One Week of DataSquamscott River RR. Bridge
Click for Map
Mon -- 04:21 AM EDT 7.08 feet High Tide
Mon -- 05:53 AM EDT Sunrise
Mon -- 09:37 AM EDT Moonset
Mon -- 10:55 AM EDT 0.40 feet Low Tide
Mon -- 04:46 PM EDT 6.76 feet High Tide
Mon -- 07:40 PM EDT Sunset
Mon -- 09:54 PM EDT Moonrise
Mon -- 11:09 PM EDT 0.70 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 04:21 AM EDT 7.08 feet High Tide
Mon -- 05:53 AM EDT Sunrise
Mon -- 09:37 AM EDT Moonset
Mon -- 10:55 AM EDT 0.40 feet Low Tide
Mon -- 04:46 PM EDT 6.76 feet High Tide
Mon -- 07:40 PM EDT Sunset
Mon -- 09:54 PM EDT Moonrise
Mon -- 11:09 PM EDT 0.70 feet Low Tide
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 |
| 1.6 | 3 | 4.8 | 6.3 | 7 | 6.9 | 6.2 | 4.9 | 3.2 | 1.7 | 0.7 | 0.4 | 0.9 | 2.1 | 3.8 | 5.5 | 6.5 | 6.7 | 6.3 | 5.2 | 3.8 | 2.3 | 1.2 | 0.7 |
Tide / Current Tables for Salmon Falls River entrance, Piscataqua River, New Hampshire
EDIT (on/off) Help One Week of DataSalmon Falls River entrance
Click for Map
Mon -- 03:37 AM EDT 7.08 feet High Tide
Mon -- 05:53 AM EDT Sunrise
Mon -- 09:36 AM EDT Moonset
Mon -- 10:06 AM EDT 0.40 feet Low Tide
Mon -- 04:02 PM EDT 6.76 feet High Tide
Mon -- 07:40 PM EDT Sunset
Mon -- 09:53 PM EDT Moonrise
Mon -- 10:20 PM EDT 0.70 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 03:37 AM EDT 7.08 feet High Tide
Mon -- 05:53 AM EDT Sunrise
Mon -- 09:36 AM EDT Moonset
Mon -- 10:06 AM EDT 0.40 feet Low Tide
Mon -- 04:02 PM EDT 6.76 feet High Tide
Mon -- 07:40 PM EDT Sunset
Mon -- 09:53 PM EDT Moonrise
Mon -- 10:20 PM EDT 0.70 feet Low Tide
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 |
| 2.7 | 4.4 | 6 | 6.9 | 7 | 6.4 | 5.2 | 3.6 | 2 | 0.8 | 0.4 | 0.7 | 1.8 | 3.4 | 5.1 | 6.3 | 6.8 | 6.5 | 5.5 | 4.1 | 2.6 | 1.4 | 0.7 | 0.9 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
GOES Local Image of 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. |