Monday, September28, 2020
Privacy Policy
L-36.com

Marine Weather and Tides
Dover, NH

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 6:36AMSunset 6:30PM Monday September 28, 2020 11:49 PM EDT (03:49 UTC) Moonrise 5:36PMMoonset 3:03AM Illumination 90% Phase: Waxing Gibbous; Moon at 12 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
ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 1006 Pm Edt Mon Sep 28 2020
Rest of tonight..S winds 10 to 15 kt, diminishing to 5 to 10 kt late. Seas 2 to 3 ft. Isolated showers late this evening and early morning. Areas of fog. Vsby 1 to 3 nm.
Tue..S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Areas of fog in the morning. Vsby variable to less than one quarter nm in the morning.
Tue night..S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain likely after midnight.
Wed..S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Rain.
Wed night..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft, subsiding to 3 to 5 ft after midnight. A chance of rain in the evening, then a chance of showers after midnight.
Thu..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft.
Thu night..W winds 5 to 10 kt. Seas 3 to 5 ft.
Fri..SW winds 5 to 10 kt. Seas 3 to 4 ft.
Fri night..SW winds 5 to 10 kt, becoming nw after midnight. Seas 3 to 4 ft.
Sat..NW winds 5 to 10 kt. Seas 3 to 4 ft.
Sat night..NW winds 5 to 10 kt, becoming N after midnight. Seas 3 to 4 ft.
ANZ100 1006 Pm Edt Mon Sep 28 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. A cold front will slowly approach over the next few days with a persistent southerly flow ahead of it. Areas of fog are expected to continue in the moist air mass through midweek. Seas will gradually build above 5 feet before the boundary crosses the area Thursday.


7 Day Forecast for Marine Location Near Dover, NH
   Hourly   EDIT   Help
location: 43.2, -70.87     debug


Area Discussion for - Gray/Portland, ME
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KGYX 290201 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 1001 PM EDT Mon Sep 28 2020

SYNOPSIS. Warm and humid conditions will persist for the first part of the week along with chances for showers. More widespread rainfall is expected Wednesday. A broad trough will remain in place to our west and north at the end of the week and weekend so a few periods of showers will remain possible then.

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/. 10:00 PM UPDATE . Extended the Dense Fog Advisory to include Coastal Cumberland County based on satellite trends and surface observations with PWM at 0.50 mile visibility. Made adjustments to weather and visibility grids to account for these trends. Also tweaked forecast temperatures and sky grids. The rest of the forecast appears to be largely on track.

7 PM . Another tricky fog forecast for tonight as S flow picks up overnight. Wrn parts of the CWA /NH and SW ME/ look to be mainly fog free overnight, while fog has already settled over the coast from PWM northward. Think the S flow will eventually work its way enuf to clear out some of these areas later tonight, but the mid- coast will likely be stuck in the fog all night.

Previously . A broken band of showers continues to lift NNE across Ern New England this afternoon. Some of these showers will clip Wrn ME near PWM . and I have raised PoP from there and points N into the early evening. It will not be much to write home about . but enough to wet the ground in some areas.

Otherwise Sly flow continues overnight and more fog and low clouds are expected. I went ahead and issued a dense fog advisory for the Midcoast . where guidance suggests this is most likely. There is still a chance that fog will form from PWM on SWwd . but the greater uncertainty precludes any headlines for the time being.

It will also be a mild night . with low temps pushing record warm readings for the date.

SHORT TERM /6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT/. As trof continues to amplify the approaching cold front will tend to stall as it nears the Wrn parts of the forecast area. For that reason I have set up a pretty sharp PoP gradient across the local area . drier in the E and wetter in the W. There is a small chance for some convection and thunder in Wrn zones . but not quite high enough to add into the forecast just yet.

With the warm sector dominating most of the forecast area . temps will be quite warm and sticky.

The leading edge of the steady rainfall begins to push into the forecast area from the SW overnight. I have heaviest QPF aligned along the frontal zone . which should help to maximize totals with low level forcing and terrain.

LONG TERM /WEDNESDAY THROUGH MONDAY/. Significant differences continue from run to run within the latest model suite. This results in low confidence in the forecast rainfall amounts and location of heaviest rain.

12Z models have shifted away from a solution indicating a cutoff low will form over the southeastern United States, allowing low pressure to develop and move northeast Wednesday into early Thursday morning. Instead, the surface cold front and its deep moisture supply is forecast to be somewhat progressive, cutting down on the precipitation forecast.

The European and the Canadian models do have a weak wave which crosses New England early Wednesday morning with some support with the upper level trough. This scenario does allow for some higher rainfall totals over the western portion of our forecast area, namely central and western New Hampshire. Have leaned towards this scenario as it is somewhat a middle ground solution between last night's 00z run and the latest 12Z run.

Rainfall could be briefly heavy as very high precipitable water values around two inches will cross the region Wednesday. Have considered adding a rumble of thunder over southern and western New Hampshire, but the chance is sufficiently small enough not to include at this time. It will be unseasonably warm and muggy during the day with surface dew points well into the 60s.

Drier air arrives late Wednesday, Wednesday night and Thursday. A fast moving coastal system may generate a period of rainfall on Friday as it quickly moves past New England. Otherwise, dry and cool conditions over the weekend, followed by potentially another coastal system early next week as our pattern remains active.

AVIATION /02Z TUESDAY THROUGH SATURDAY/. Short Term . Areas of IFR or lower persist near the coast of Wrn ME. Otherwise VFR across the forecast area. LIFR is expected to expand across Wrn ME tonight . with Sly flow keeping those conditions out of NH. Much like today fog will slowly lift Tue morning and give way to VFR. Front will stall to our W and so I do not expect much in the way of SHRA to make it into Wrn zones before 8 pm Tue.

Long Term . IFR and LIFR conditions expected in low clouds, fog and precipitation Wednesday for all areas. A period of showers or steady rainfall possible on Friday as well bringing most areas down to IFR conditions. Otherwise, mainly VFR conditions with scattered showers.

MARINE. Short Term . Moist Sly flow is expected to persist thru Tue night over the waters More areas of fog. some dense . are expected again as well. Winds will begin to increase late Tue and SCA conditions are possible outside of the bays . with both wind gusts in excess of 25 kt and seas building over 5 ft.

Long Term . Winds will increase as a southerly gradient tops out on Wednesday ahead of a cold front. A few gusts to 30 knots possible with SCAs expected. Seas will remain in the 4 to 7 foot range on Wednesday and Thursday.

GYX WATCHES/WARNINGS/ADVISORIES. ME . Dense Fog Advisory until 10 AM EDT Tuesday for MEZ024>028. NH . None. MARINE . None.

SYNOPSIS . NEAR TERM . Tubbs


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
BGXN3 - Great Bay Reserve, NH 10 mi65 min SE 1.9 67°F 1014 hPa67°F
WELM1 - 8419317 - Wells, ME 18 mi50 min SSW 11 G 13 64°F 59°F1014 hPa (+0.5)
IOSN3 - Isle of Shoals, NH 21 mi50 min S 19 G 20 65°F 1013.2 hPa (+0.7)64°F
44030 - Buoy B0102 - Western Maine Shelf 24 mi106 min S 14 G 18 62°F 61°F4 ft
44007 - PORTLAND 12 NM Southeast of Portland,ME 45 mi60 min S 16 G 18 62°F 59°F4 ft1013.2 hPa (+0.5)
44098 - Jeffrey's Ledge, NH (160) 46 mi45 min 62°F3 ft
CASM1 - 8418150 - Portland, ME 46 mi50 min 63°F 57°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 49 mi106 min S 12 G 16 64°F 2 ft1011.9 hPa

Wind History for Wells, ME
(wind in knots)    EDIT      (on/off)   Help
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
Last
24hr
S5
S6
S4
SE4
--
SE2
SE4
S6
S4
S8
S8
S8
S10
S4
S8
G11
S7
G10
S14
G17
S14
G18
S11
G14
S10
S12
G16
S14
S11
SW11
1 day
ago
E1
NW4
N3
SE2
NE1
SW4
G7
SW2
--
SW2
S11
G14
S11
S10
G14
S10
G15
S11
S13
G16
S11
G14
S9
G12
S10
S7
S10
S3
S5
NE3
SW3
G7
2 days
ago
N4
N3
N3
N3
NW2
NW2
N3
N2
SW3
SW5
SW3
G7
S2
S7
S7
S10
S9
G12
S8
S11
SW9
S6
S3
--
N1
SW2

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rochester - Skyhaven Airport, NH6 mi59 minS 510.00 miMostly Cloudy66°F64°F93%1013.1 hPa
Pease Air Force Base / Portsmouth, NH8 mi54 minSE 510.00 miMostly Cloudy66°F64°F97%1013.4 hPa
Sanford, Sanford Regional Airport, ME16 mi54 minSSW 410.00 miFair66°F64°F96%1014 hPa

Link to 5 minute data for KDAW

Wind History from DAW (wind in knots)
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
Last 24hr3S3SE3CalmSE4SE4SE5SE3SE4S3S4SE6SE7S6S10
G15
S8SE6
G15
S8
G15
SE55S6S6S3S5
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmS4Calm4Calm3S65S7S7SE6SE7S3CalmCalmS3S3
2 days agoNW4CalmCalmCalmCalmNW3CalmCalmCalm3S33SW45S645S6SE6SE3SE3CalmCalmCalm

Tide / Current Tables for Salmon Falls River entrance, Piscataqua River, New Hampshire
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Salmon Falls River entrance
Click for Map
Mon -- 03:03 AM EDT     Moonset
Mon -- 05:19 AM EDT     0.19 feet Low Tide
Mon -- 06:37 AM EDT     Sunrise
Mon -- 11:18 AM EDT     6.73 feet High Tide
Mon -- 05:34 PM EDT     0.68 feet Low Tide
Mon -- 05:35 PM EDT     Moonrise
Mon -- 06:28 PM EDT     Sunset
Mon -- 11:32 PM EDT     7.27 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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
6.55.23.620.80.20.41.53.14.766.76.65.74.32.81.50.80.81.63.24.96.37.1

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
   EDIT      (on/off)   Help   One Week of Data
Portsmouth Harbor Entrance
Click for Map
Mon -- 02:15 AM EDT     -1.79 knots Max Ebb
Mon -- 03:02 AM EDT     Moonset
Mon -- 05:21 AM EDT     0.00 knots Slack
Mon -- 06:37 AM EDT     Sunrise
Mon -- 09:15 AM EDT     1.02 knots Max Flood
Mon -- 11:08 AM EDT     -0.00 knots Slack
Mon -- 02:46 PM EDT     -1.57 knots Max Ebb
Mon -- 05:34 PM EDT     Moonrise
Mon -- 05:37 PM EDT     0.00 knots Slack
Mon -- 06:28 PM EDT     Sunset
Mon -- 09:30 PM EDT     0.95 knots Max Flood
Mon -- 11:23 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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
-1.3-1.7-1.8-1.7-1.2-0.30.50.80.910.90.1-0.8-1.4-1.5-1.6-1.3-0.60.30.80.90.90.90.4

Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS 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
Ground Weather Radar Station Portland, ME
   (on/off)   Help
weather_mapweather_map weather_map


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. Google supplies the ads on this site. Because I do not track who you are, I cannot customize how these ads are served. They may be personalized to improve the ad experience. If you do not want personalized ads, please adjust the settings on the Google site HERE.
. NOTE: The best I can determine, this site is not subject to CCPA but I am doing my best to comply 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.