Saturday, July11, 2020
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Marine Weather and Tides
Kittery, 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 5:13AMSunset 8:24PM Saturday July 11, 2020 1:17 PM EDT (17:17 UTC) Moonrise 12:00AMMoonset 11:40AM Illumination 63% Phase: Waning Gibbous; Moon at 21 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- 1227 Pm Edt Sat Jul 11 2020
.small craft advisory in effect through Sunday afternoon...
This afternoon..S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Areas of fog. Vsby 1 to 3 nm.
Tonight..S winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 5 ft. Areas of fog. Vsby 1 to 3 nm.
Sun..S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Areas of fog in the morning with vsby 1 to 3 nm.
Sun night..SW winds 5 to 15 kt with gusts up to 20 kt, becoming 5 to 10 kt after midnight. Seas 3 to 5 ft.
Mon..SW winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 4 ft. Scattered showers and tstms in the afternoon.
Mon night..S winds 5 to 10 kt. Seas 2 to 4 ft. Scattered showers and tstms in the evening, then scattered showers after midnight. Vsby 1 to 3 nm in the evening.
Tue..SW winds 5 to 10 kt. Seas 2 to 4 ft. Scattered showers.
Tue night..W winds around 5 kt. Seas 2 to 3 ft.
Wed..N winds 5 to 10 kt. Seas 2 to 3 ft.
Wed night..S winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms.
ANZ100 1227 Pm Edt Sat Jul 11 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. Remnants of tropical system fay will pass west of the waters today, bringing seas above 5 ft for the outer waters with gusts to 25 kts likely through the weekend. An upper level low will approach from the west early next week. &&


7 Day Forecast for Marine Location Near Kittery, ME
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location: 43.08, -70.75     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 111643 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 1243 PM EDT Sat Jul 11 2020

SYNOPSIS. Rain bands from the remnants of Tropical Storm Fay will continue moving northward through the area through morning. More impacts are expected from locally dense fog as a very humid air mass remains in place across the region. It will remain warm and muggy this afternoon, which will lead to afternoon showers and thunderstorms especially across western areas and the higher terrain. Another trough will cross the region Monday, with another round of showers and thunderstorms possible.

NEAR TERM /UNTIL 6 PM THIS EVENING/. Update .

Most recent update is to raise heat advisories for southern New Hampshire. Apparent temperatures will reach the mid to upper 90s this afternoon.

Dense fog advisories have been allowed to expire as visibilities continue to rise. Areas of fog to continue in the Midcoast region into early this afternoon.

Have updated the forecast based on current conditions and latest set of mesoscale models. Plenty of low clouds and patchy fog continues this morning, stabilizing the atmosphere and limiting any chance for convective showers.

Ridging will continue aloft into the early afternoon hours. Thereafter, a trough will approach from the west as the atmosphere destabilizes in a deeply rich tropical airmass. Scattered showers are expected to develop as well as thunderstorms as CAPE values rapidly increase. Strong gusty winds and locally heavy downpours may occur in a few of the storms.

Continuing to monitor upslope rainfall in the White Mountains as precipitation enhancement is occurring along the SSE facing higher terrain. The upper reaches of the Saco near Bartlett will continue to rise today.

Minor adjustments made to temperatures and dew points for this afternoon.

Prev Disc . 710 AM . This update better times the band of precip moving thru the CWA this morning, and adjusts POPS thru the day based on the latest HRRR, which has done quite a good Job with rain overnight. Vsby came up briefly at spots after the rain did some mixing, but it settle back down to 1/2 mile or less in the dense fog adv, so that remains up thru 9 AM.

Previously . Remnants of TC Fay located in vcnty of KPOU at 07Z, and tracking NNE. System will track across Lk Champlain and east of Montreal thru today. Rain band associated with Fay are continuing to cross our CWA attm, and heaviest rainfall is likely to occur with this outer most band that should cross the remainder of the CWA /nrn NH and west and central ME/ thru around 12Z. could see some heavy downpours, and decent rainfall rates, but only for short periods, so threat of any flash flooding is low, but non-zero. Once the bands move out,as they have in srn NH, should see just some spotty showers thru mid- morning. Also, dense fog adv for the mid-coast and cAsco Bay region will hold thru 9 AM, although SHRA may help to break it up at times likely to return given the high moisture levels.

Some clearing likely in central and srn NH, and well as SW ME, and this will allow temps in these areas to rise well into the 80s, this afternoon. And with Tds in the low 70s will see heat inidices rise into the low 90s, and may briefly touch the mid 90s in the KMHT-KASH corridor. Holding off on Heat adv because of uncertainty based on clearing, but it will likely be a very hot and humid day in srn NH and interior SW ME.

One more issue to deal with this afternoon is the approaching 500 mb trough that trapped Fay to our west will approach, and we'll see 500 mb height falls and cooling temps as sfc instability increases, will see convection develop to our S and W, and probably over NH. Will have to watch for potential strong or severe storms that could produce gusty winds, and heavy rain.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SUNDAY/. Any SHRA/TSRA should wind down this evening, and will likely see yet another with fog and low clouds as flow stays onshore. Lows once again will generally be in the mid 60s to low 70s.

On Sunday , flow actually shifts to SW behind the trough, and Tds may fall off a little but it will be hot with highs in the mid 80s to around 90. Some sct convection is again possible but will be more likely in the mtns.

LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/. The forecast looks to have two distinct wx patterns that will evolve.

The first will be coming to an end at the very beginning of the period . as a more unsettled pattern breaks early in the week with a couple trof passages. The second will set up as ridging builds back into the region and heat and humidity try to return.

On Mon a trof will swing negatively tilted thru New England. Current timing favors the afternoon hours . well positioned to arrive during peak instability. The question will be how much warmth/moisture can return ahead of it and how far N it makes it. At least a portion of the forecast area is expected to have modest theta-e lapse rates and ample shear in place. I would not be surprised to see a couple stronger storms over Srn NH or SWrn ME if forecasts hold onto this timing.

The main trof axis swings thru the area Tue. More showers and storms are possible with that feature . though instability is forecast to be weaker.

In its wake upper ridging will build back in. SW flow aloft will allow the heat and humidity to start surging back to the NE. Current global model guidance favors the upper heights remaining rather flat thru New England . so while heat may try to nose in there is not a strong signal for it to blast thru well to the N. However it would not take much change from the model guidance to open us up for more favorable delivery of hot wx. More or less it looks like summer for the foreseeable future after the first half of the week.

AVIATION /18Z SATURDAY THROUGH THURSDAY/. Short Term . Well, this morning will be a repeat of Friday morning, with lingering fog and low clouds along the coast Should see some brief improvement to VFR this afternoon. But low clouds and fog return late today. Winds should shift to SW on Sunday allowing for a return to VFR earlier and lasting through the day.

Long Term . Overall expect VFR conditions to prevail. Trof will swing thru the area Mon with SHRA/TSRA expected along and ahead of it. Local IFR conditions are possible in the heaviest convection. At this time looking like Srn NH terminals towards SWrn ME has the best chance for these.

MARINE. Short Term . Wind gusts to 25 kt and seas to around 5 or 6 ft will persist through Sunday.

Long Term . Lingering 5 ft seas N of Cape Elizabeth will gradually diminish Sun night into Mon. Given the hot and humid air that will be positioned just S of the waters . we will have to watch for onshore flow development that may act to bring marine fog/stratus back over the coastal waters at times.

GYX WATCHES/WARNINGS/ADVISORIES. ME . None. NH . Heat Advisory until 6 PM EDT this evening for NHZ007>013-015. MARINE . Small Craft Advisory until 5 PM EDT Sunday for ANZ150>154.

Cannon/Casey


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGXN3 - Great Bay Reserve, NH 4 mi93 min SE 4.1 82°F 1007 hPa75°F
IOSN3 - Isle of Shoals, NH 10 mi78 min SSE 22 G 24 70°F 1006.4 hPa (+0.0)69°F
44073 12 mi134 min SSE 18 G 21 70°F 65°F
44030 - Buoy B0102 - Western Maine Shelf 18 mi74 min SSE 18 G 21 1012.8 hPa
WELM1 - 8419317 - Wells, ME 19 mi48 min S 12 G 15 71°F 70°F1007.8 hPa
WEXM1 - Wells Reserve, ME 21 mi78 min S 5.1 75°F 71°F
44098 - Jeffrey's Ledge, NH (160) 36 mi73 min 65°F4 ft
44029 - Buoy A0102 - Mass. Bay/Stellwagen 40 mi74 min S 16 G 19 68°F 4 ft1005.3 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 45 mi88 min SSE 19 G 21 67°F 64°F4 ft1006.5 hPa (-1.0)
CASM1 - 8418150 - Portland, ME 48 mi48 min 75°F 67°F

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pease Air Force Base / Portsmouth, NH4 mi82 minSSE 16 G 2210.00 miPartly Cloudy81°F70°F71%1006.6 hPa
Sanford, Sanford Regional Airport, ME22 mi22 minSSE 10 G 1510.00 miMostly Cloudy81°F73°F79%1007 hPa

Link to 5 minute data for KPSM

Wind History from PSM (wind in knots)
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1 day agoE7E9SE9SE8SE8E5E5E5E3CalmCalmCalmCalmE3CalmSE4SW2CalmCalmSE3E5SE6SE8SE10
2 days agoSW10SW10SW6NW3SE7SW12
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NW4--NE8E6S4CalmCalmCalmCalmCalmCalmCalmCalmNW6CalmE8E7E8

Tide / Current Tables for Portsmouth, Portsmouth Harbor, New Hampshire
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Portsmouth
Click for Map
Sat -- 04:29 AM EDT     7.83 feet High Tide
Sat -- 05:14 AM EDT     Sunrise
Sat -- 10:43 AM EDT     0.69 feet Low Tide
Sat -- 11:40 AM EDT     Moonset
Sat -- 05:06 PM EDT     7.50 feet High Tide
Sat -- 08:22 PM EDT     Sunset
Sat -- 11:05 PM EDT     1.33 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.33.95.677.77.76.95.43.51.90.90.71.32.64.35.97.17.57.26.14.62.91.81.3

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
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Portsmouth Harbor Entrance
Click for Map
Sat -- 12:11 AM EDT     0.00 knots Slack
Sat -- 02:00 AM EDT     0.95 knots Max Flood
Sat -- 05:14 AM EDT     Sunrise
Sat -- 05:40 AM EDT     -0.00 knots Slack
Sat -- 08:36 AM EDT     -1.77 knots Max Ebb
Sat -- 11:39 AM EDT     Moonset
Sat -- 12:41 PM EDT     0.00 knots Slack
Sat -- 02:32 PM EDT     1.00 knots Max Flood
Sat -- 06:31 PM EDT     -0.00 knots Slack
Sat -- 08:22 PM EDT     Sunset
Sat -- 09:05 PM EDT     -1.46 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.20.610.70.50.3-0.2-1-1.7-1.7-1.5-1.2-0.60.30.90.90.70.60.3-0.4-1.1-1.5-1.3-1.1

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.
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Wind Forecast for Gray/Portland, ME (13,3,4,5)
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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.