Sunday, March29, 2020
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Marine Weather and Tides
Waldoboro, 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 6:23AMSunset 7:05PM Sunday March 29, 2020 2:34 PM EDT (18:34 UTC) Moonrise 9:08AMMoonset 12:00AM Illumination 31% Phase: Waxing Crescent; Moon at 6 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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ANZ150 Coastal Waters From Stonington, Me To Port Clyde, Me Out 25 Nm- 919 Am Edt Sun Mar 29 2020
.small craft advisory in effect from 4 pm edt this afternoon through late tonight...
Rest of today..SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 1 foot or less, then 1 to 2 ft this afternoon. A chance of rain this afternoon.
Tonight..E winds 10 to 20 kt, increasing to 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft, building to 5 to 8 ft after midnight. Rain in the evening, then rain and snow after midnight.
Mon..E winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 10 ft. Rain and snow showers likely.
Mon night..NE winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to 10 ft. Rain and snow showers likely. Vsby 1 to 3 nm.
Tue..NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Snow showers likely in the morning. Vsby 1 to 3 nm.
Tue night..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Patchy drizzle.
Wed..N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Patchy drizzle.
Wed night..N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy drizzle.
Thu..N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Patchy drizzle.
Thu night..N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers with patchy drizzle.
ANZ100 919 Am Edt Sun Mar 29 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. Low pressure centered south of long island will shift slowly east late today and tonight. Expect an increasing easterly flow over the gulf of maine shifting to northeast and then north through Tuesday as the low moves away. A broad area of low pressure will remain overheard through the week keeping winds and seas fairly calm but bringing low clouds, fog and drizzle. &&


7 Day Forecast for Marine Location Near Waldoboro, ME
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location: 43.87, -69.28     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 291320 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 920 AM EDT Sun Mar 29 2020

SYNOPSIS. Low pressure is developing to the south of New England while a warm front lifts into the area from the southwest. This will spread a mix of snow, sleet, and rain across northern New England today and tonight. The low will be slow to move out, with rain and snow showers possibly lingering through midweek.

NEAR TERM /UNTIL 7 PM THIS EVENING/.

920 AM . at 13z a 990 millibar low was centered vicinity of the western Great Lakes with a warm front extending through the mid Atlantic region to a weak 1012 millibar offshore low. For today . warm air advection precipitation will gradually spread northeast. The profile will cool with precipitation onset and we'll see an expanding area of mixed sleet, snow, develop mainly across mountain and foothill locations Elsewhere. where we see a burst of heavier precipitation a brief changeover or mix with sleet or wet snow will be possible. For this ESTF update . I made minor adjustments to near term grids to reflect current radar trends as well as the 13z mesonet.

Prev disc . 645AM UPDATE . Made a few minor adjustments to the forecast this morning based largely on current observations. Still expect the bulk of the precipitation to not arrive until midday, and until then some light rain is the most likely precipitation type.

ORIGINAL DISCUSSION . We've already seen some light rain across southern New Hampshire early this morning associated with a weak area of low pressure trying to form near New York City. These showers are not expected to make much progress northeast until the larger scale warm front moves into the area around midday. That's when more widespread precipitation is expected . likely in the afternoon and evening. As precipitation arrives, dry air in place across Maine and northern New Hampshire will allow the temperature to cool from evaporation and lead to a change to snow and sleet. Temperatures fall to around freezing at ground level as a cold air dam develops east of the mountains. Biggest question mark is precipitation type and this is largely still questionable due to surface temperatures. I based this forecast largely on the NAM and its derivatives as it handles these situations better overall and was the coldest source of guidance. Several inches of wet snow and sleet is possible, with the areas most likely to see several inches currently covered by a Winter Weather Advisory. Closer to the coast the temperature may be too warm to support more significant accumulations, though we will need to watch it.

SHORT TERM /7 PM THIS EVENING THROUGH 6 PM MONDAY/. Band of steadier precipitation along the mid level warm front lifts northeast overnight. Thus expect the heaviest snow to end in the evening or shortly after midnight. However, surface low pressure lingers just offshore of Cape Cod, so additional low level moisture being slung in from the Atlantic will keep some showers in the forecast all the way through the day Monday. Temperatures cool as the low shifts a bit to the east and opens us up to more cold advection from the northeast. Thus expect most areas to go over to snow tonight into Monday, though accumulations are currently expected to be minor.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/. For this week, the large scale pattern will be the main determining factor. To our east a strong block is forming over the prime meridian. As it does, we'll find the the upper level low that arrives today will have nowhere to go and thus remain overhead through much of the week bringing continued cool and overcast conditions.

Monday night will see light snow and rain showers continue throughout the region as the surface low stacks with the upper low and begins to weaken.

Tuesday those showers continue to decrease in coverage as the low weakens and just a few snow showers hold on in the mountains. The overcast skies will remain however and help to keep temperatures into the 40s.

Tuesday Night the dynamics and widespread shower activity have left the region leaving just the upper low to sit and spin. Near the surface we'll see more and more moisture trapped off the water with the resulting low cloud cover, and some fog and drizzle possible especially through the midcoast and downeast. Have kept patchy drizzle in this region for a full 48 hours. Expect a few breaks in that time but overall classic wet April conditions. In addition to the immediate coastline, the low level moisture may move inland into the coastal plain somewhat, with areas as far as Augusta showing the saturated lower levels on forecast soundings. Further inland the colder surface temperatures would make this light precip either freezing drizzle or very light snow. With less confidence in this and no way to put "SNizzle" in the grids have opted to leave drizzle confined to the coast.

The overcast skies continue through Wednesday and into the end of the week but by Thursday there starts to be a warming trend. Temperatures will such back into the 50s across the southern portion of the region with the CT river valley seeing some of the warmest temperatures as some sun peaks in.

By the end of the week, the upper level low moves out just in time for another system to pass to our south.

AVIATION /13Z SUNDAY THROUGH THURSDAY/. Short Term . Expect conditions gradually worsening through the day today eventually landing at IFR or LIFR by this afternoon and evening. Heaviest precipitation likely falls this afternoon and evening, with snow more likely the further northeast you go, some sleet possible in between, and mainly rain in southern New Hampshire. Some low level wind shear is possible as well as a cold air dam sets up at ground level and stronger winds ride up and over this. Could see improvement to MVFR on Monday, though showers likely continue.

Long Term . Extended period of IFR likely with LIFR possible along the coast as low level moisture remains through the week under the influence of an upper low. Periods of fog and drizzle are possible. In the mountains MVFR and snow showers will continue through the middle of the week before returning to VFR and overcast.

MARINE. Short Term . Easterly winds increase today as low pressure develops near New York City. Expect gusts of 25 to 30 KT at times by this evening. The onshore easterly flow will also allow the highest waves to push into the western Gulf of Maine with 7 to 10 FT waves likely. Current Small Craft Advisory goes through Monday morning, but we may need to extend this further.

Long Term . SCA conditions will subside as the low decays. With low pressure right overhead, winds and seas should remain calm through the week however low clouds, and areas of fog and drizzle are possible particularly on the eastern part of the waters.

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 . Winter Weather Advisory until 4 AM EDT Monday for MEZ007>009- 013-014. NH . None. MARINE . Small Craft Advisory from 4 PM this afternoon to 6 AM EDT Monday for ANZ150>154.



ES


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44032 - Buoy E0104 - Central Maine Shelf 11 mi90 min E 7.8 G 9.7 42°F 42°F2 ft1022.6 hPa
44033 - Buoy F0103 - West Penobscot Bay 20 mi90 min E 7.8 G 7.8 41°F 1 ft1023.7 hPa

Wind History for Bar Harbor, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rockland, Knox County Regional Airport, ME17 mi38 minE 810.00 miOvercast43°F35°F74%1024.2 hPa
Wiscasset Airport, ME23 mi41 minVar 310.00 miLight Rain44°F28°F53%1024 hPa

Link to 5 minute data for KRKD

Wind History from RKD (wind in knots)
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Last 24hrSW12W7S6SW7SW7W7W6W5CalmCalmCalmNE4CalmCalmE3NE3CalmN3E6E8E8E6E8E8
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5NW3NW3NW4W33NW3CalmCalmCalmCalmCalmCalmW34S7S9S11S10
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Tide / Current Tables for Burnt Island, Georges Islands, Maine
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Burnt Island
Click for Map
Sun -- 02:31 AM EDT     9.04 feet High Tide
Sun -- 06:23 AM EDT     Sunrise
Sun -- 08:49 AM EDT     0.52 feet Low Tide
Sun -- 09:08 AM EDT     Moonrise
Sun -- 03:02 PM EDT     8.29 feet High Tide
Sun -- 07:01 PM EDT     Sunset
Sun -- 09:00 PM EDT     1.25 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.17.98.98.986.44.32.20.90.51.22.64.46.47.88.37.96.85.13.21.81.21.73

Tide / Current Tables for Sheepscot River (off Barter Island), Maine Current
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Sheepscot River (off Barter Island)
Click for Map
Sun -- 12:18 AM EDT     0.87 knots Max Flood
Sun -- 03:23 AM EDT     -0.00 knots Slack
Sun -- 06:24 AM EDT     Sunrise
Sun -- 06:59 AM EDT     -1.04 knots Max Ebb
Sun -- 09:09 AM EDT     Moonrise
Sun -- 10:46 AM EDT     0.00 knots Slack
Sun -- 12:44 PM EDT     0.74 knots Max Flood
Sun -- 03:26 PM EDT     -0.00 knots Slack
Sun -- 07:02 PM EDT     Sunset
Sun -- 07:17 PM EDT     -0.91 knots Max Ebb
Sun -- 10:51 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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0.80.80.40.1-0.1-0.5-0.9-1-0.9-0.7-0.40.10.60.70.40.1-0.1-0.3-0.6-0.9-0.8-0.6-0.30.1

Weather Map
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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.
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Wind Forecast for Gray/Portland, ME (14,3,4,5)
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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.