Friday, April3, 2020
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Marine Weather and Tides
Kennebunk, ME

Version 3.4
NOTICE
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 6:17AMSunset 7:12PM Friday April 3, 2020 5:35 AM EDT (09:35 UTC) Moonrise 1:41PMMoonset 4:02AM Illumination 78% Phase: Waxing Gibbous; Moon at 10 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
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ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 321 Am Edt Fri Apr 3 2020
.gale warning in effect through late tonight...
Today..NE winds 25 to 30 kt with gusts up to 45 kt. Seas 12 to 17 ft. Rain this morning, then showers likely this afternoon.
Tonight..NE winds 20 to 30 kt with gusts up to 40 kt. Seas 11 to 16 ft, subsiding to 10 to 14 ft after midnight. A chance of showers.
Sat..NE winds 15 to 20 kt, becoming 10 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 9 to 13 ft, subsiding to 9 to 11 ft in the afternoon.
Sat night..E winds 5 to 10 kt, becoming N after midnight. Seas 7 to 10 ft.
Sun..NE winds 5 to 10 kt, becoming S in the afternoon. Seas 5 to 8 ft.
Sun night..S winds 10 to 15 kt, becoming sw after midnight. Seas 4 to 6 ft.
Mon..W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.
Mon night..W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Tue..SW winds 5 to 10 kt. Seas 2 to 3 ft.
Tue night..SE winds around 10 kt with gusts up to 20 kt. Seas around 2 ft.
ANZ100 321 Am Edt Fri Apr 3 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. A large low pressure system over the atlantic south of nova scotia this morning will move southeastward today and tonight allowing for a very gradual improvement to windy conditions tonight and Saturday. However, hazardous seas are expected to continue through Sunday night. Thereafter, more tranquil conditions are expected for midweek. &&


7 Day Forecast for Marine Location Near Kennebunk, ME
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location: 43.32, -70.56     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 030811 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 411 AM EDT Fri Apr 3 2020

SYNOPSIS. A large, oceanic low positioned south of Nova Scotia this morning will move southward away from the area through tonight bringing very gradual improvement to the rainy, windy, raw conditions currently observed. High pressure then builds in for the weekend. For the most part, the weather pattern will be conducive to dry weather through midweek.

NEAR TERM /TODAY/. Today continues the recent trend of rainy, windy, raw conditions as a large, stacked storm over the open Atlantic churns east of Cape Cod and south of Nova Scotia. As of 330 AM, RAP13 analysis showed the low at 980 mb. A strong northeasterly low jet over the Gulf of Maine, on the north side of the low will continue to produce widespread wind gusts on the order 20-30 kts through the day. Winds maximize along exposed coastal areas later this morning . though falling just short of advisory- level winds, do still expect wind gusts along the coast to top out 35-40 kts with strongest gusts over the east- facing New Hampshire Seacoast.

Early this morning, a broad area of moderate rainfall associated with a wave rotating around the low blanketed most of the area . this will continue to rotate westward into New Hampshire, focusing in the Whites. Behind this wave dry advection from the north and weaker forcing will allow steady rain to turn more showery, gradually losing coverage and intensity from north to south. By the end of the day showers will be relegated to southern NH and extreme southwest ME.

Quite dry air quickly filters in aloft today, clearing out most upper level clouds, however low stratus cloud cover will hold temperatures in the 40s today. The exception is over the Connecticut River Valley where some afternoon clearing may allow temperatures to reach up around 50 degrees.

SHORT TERM /TONIGHT THROUGH SATURDAY/. Conditions will continue to gradually improve tonight with drier air filtering in from the north, behind the departing and weakening oceanic low. Breezy conditions will continue, except for in sheltered valleys where an abundance of lingering low level moisture may allow fog to develop. High pressure builds in from the northwest on Saturday, helping to break up some of the clouds, and allowing afternoon temperatures to warm an extra couple degrees, into the upper-40s to near 50 over most of the area.

LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/. High pressure remains over the region Saturday night. A weak cold front crosses the region Sunday into Sunday night bringing low chances for showers, mainly in the mountains. High pressure builds in for Monday and Tuesday. Thereafter, large divergence in model solutions for mid to late week with low confidence in the forecast. Will keep PoPs conservative midweek, and then gradually ramp up late week. Low confidence.

AVIATION /07Z FRIDAY THROUGH TUESDAY/. Short Term /Through Saturday/ . Widespread MVFR with areas of IFR in -RA persists this morning accompanying northeast winds of 15-20 kts, gusting to around 30 kts. A low level jet just off shore peaks later this morning with gusts up to 35-40 kts possible along the coast, especially at PSM. Winds at HIE and LEB remain below 20 kts in their more sheltered locations. Although rain will gradually come to end today, from north to south, MVFR ceilings will linger at most sites through tonight under decreasing NE flow. High pressure building tomorrow will allow ceilings to lift and scatter with a return to VFR expected.

Long Term . Mainly VFR conditions expected Saturday night through early in the week as the region remains in an area of high pressure. Pockets of MVFR possible Sunday in association with weak cold front.

MARINE. Short Term /Through Saturday/ . A large oceanic low will finally pull away to the SSE through tonight with a long, slow downward trend in seas and swells following its peak around mid- day today. Gale Warnings are posted for all zones accept for Casco bay where strong SCA conditions are expected . conditions will back down below Gales tonight. Regarding seas, wave action peaks later this morning with near-shore waves 5-12 ft to as high as 18 ft over the waters. Due to the size and residence of the ocean storm, seas will be slow to come down with SCAs lingering into tomorrow at Penobscot Bay, into early Sunday at Casco Bay, and perhaps into Sunday night over the waters.

Long Term . Hazardous seas will gradually diminish by Sunday night, with sub-sca conditions expected for early next week.

TIDES/COASTAL FLOODING.

Astronomical tides will trend up until reaching their monthly peak next week. Meanwhile, a powerful storm off of Cape Cod will finally pull south and away out to sea through tonight. The long residence of the storm over the Atlantic along with a brief retrograde early this morning/last night has lead to strong seas and storm surge focused along southern coastal areas where easterly fetch is maximized and east-facing shoreline is most vulnerable.

At 08Z this morning, analysis from the Portland tide gauge reflected about 2.4 ft of storm surge. Based on observed trends, expect surge to peak around 09-10Z this morning at 2.5-2.7 ft at Portland and points south (higher surge south). When combined with a peak tide at 11Z and near- shore waves up to 12 ft, expect coastal flooding and erosion along the New Hampshire seacoast this morning. The threat generally decreases heading north into Maine where northeasterly winds are less conducive to wave action, but even along the Mid Coast some splash-over issues are possible due to surge and ESErly swells. In addition to the Coastal Flood Warning in place for coastal Rockingham Co NH and advisories for coastal Cumberland and York Co ME, coastal flood statements have been posted for the MidCoast where some splashover and erosion is possible.

EQUIPMENT. The last GYX upper air observation was March 25 at 12Z. Unfortunately, a disruption in gas supply has temporarily halted observations from GYX. It's unknown when supplies will be restored and upper air observations resumed.

GYX WATCHES/WARNINGS/ADVISORIES. ME . Coastal Flood Advisory until 9 AM EDT this morning for MEZ023- 024. NH . Coastal Flood Warning until 9 AM EDT this morning for NHZ014. MARINE . Small Craft Advisory until 2 AM EDT Saturday for ANZ153. Gale Warning until 6 AM EDT Saturday for ANZ150-152-154. Gale Warning until 8 PM EDT this evening for ANZ151.



NEAR TERM . Casey SHORT TERM . Casey LONG TERM . Ekster


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WELM1 - 8419317 - Wells, ME 0 mi47 min NNE 14 G 23 44°F 42°F998 hPa
WEXM1 - Wells Reserve, ME 1 mi35 min N 11 44°F 42°F
44030 - Buoy B0102 - Western Maine Shelf 12 mi151 min N 23 G 29 11 ft997.6 hPa
CMLN3 19 mi151 min NNW 34 41°F 43°F
44073 21 mi91 min N 21 G 27 44°F 41°F
IOSN3 - Isle of Shoals, NH 25 mi35 min N 26 G 29 43°F 996.8 hPa (-0.0)43°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 26 mi45 min NNE 25 G 31 43°F 40°F11 ft996.6 hPa (-0.0)42°F
CASM1 - 8418150 - Portland, ME 29 mi47 min 45°F 42°F
44098 - Jeffrey's Ledge, NH (160) 42 mi27 min 43°F14 ft

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sanford, Sanford Regional Airport, ME9 mi39 minNNE 157.00 miLight Rain43°F42°F97%999.1 hPa
Rochester - Skyhaven Airport, NH19 mi44 minN 16 G 212.00 miRain Fog/Mist43°F42°F97%998.2 hPa
Pease Air Force Base / Portsmouth, NH21 mi1.7 hrsN 15 G 223.00 miLight Rain Fog/Mist44°F42°F93%997.2 hPa

Link to 5 minute data for KSFM

Wind History from SFM (wind in knots)
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Last 24hrNW8NW5NW6NW6N12N17
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1 day agoN3N5N8N9N11NE11N10N11N11NE11NE10N13
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N14N12N9N8N10N14N11N11N10N10NW8NW7
2 days agoN9N9N9NE16
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SE9SE8SE3--CalmW3CalmCalmCalmCalmCalmCalmN7

Tide / Current Tables for Wells, Webhannet River, Maine
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
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Portsmouth Harbor Entrance
Click for Map
Fri -- 03:27 AM EDT     0.00 knots Slack
Fri -- 04:02 AM EDT     Moonset
Fri -- 05:27 AM EDT     1.08 knots Max Flood
Fri -- 06:20 AM EDT     Sunrise
Fri -- 08:57 AM EDT     -0.00 knots Slack
Fri -- 12:06 PM EDT     -1.80 knots Max Ebb
Fri -- 01:42 PM EDT     Moonrise
Fri -- 04:10 PM EDT     0.00 knots Slack
Fri -- 06:03 PM EDT     1.04 knots Max Flood
Fri -- 07:12 PM EDT     Sunset
Fri -- 09:48 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.4-1.1-0.8-0.30.4110.60.3-0-0.6-1.4-1.8-1.6-1.3-0.9-0.10.710.80.50.3-0.1-0.9

Weather Map
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wmap_A
GEOS 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 (5,6,7,8)
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Ground Weather Radar Station Portland, ME
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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.