Sunday, April5, 2020
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Marine Weather and Tides
Boothbay Harbor, 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 6:11AMSunset 7:13PM Sunday April 5, 2020 6:29 AM EDT (10:29 UTC) Moonrise 4:09PMMoonset 5:16AM Illumination 93% 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
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ANZ152 Coastal Waters From Port Clyde, Me To Cape Elizabeth, Me Out 25 Nm- 324 Am Edt Sun Apr 5 2020
.small craft advisory in effect through Monday morning...
Today..SE winds around 5 kt, becoming S this afternoon. Seas 4 to 7 ft.
Tonight..S winds 10 to 15 kt, becoming W 5 to 15 kt after midnight. Seas 3 to 5 ft. A chance of showers.
Mon..NW winds 10 to 15 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 4 ft.
Mon night..W winds around 10 kt. Seas 2 to 3 ft.
Tue..NW winds 5 to 10 kt, becoming sw in the afternoon. Seas around 2 ft in the morning, then 1 foot or less.
Tue night..NE winds 5 to 10 kt. Seas 1 foot or less.
Wed..E winds 5 to 10 kt. Seas around 2 ft. A chance of rain.
Wed night..SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
Thu..S winds 5 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain likely.
Thu night..SW winds 10 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. Rain likely.
ANZ100 324 Am Edt Sun Apr 5 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. A weak cold front will move across the waters this evening followed by high pressure for Monday. A weak secondary cold front will pass across the waters Tuesday. Thereafter, an area of low pressure is expected to pass just south of new england on Wednesday possibly followed by a more significant low pressure system for Thursday. &&


7 Day Forecast for Marine Location Near Boothbay Harbor, ME
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location: 43.84, -69.64     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 050757 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 357 AM EDT Sun Apr 5 2020

SYNOPSIS. A cold front will approach from the west late today with some scattered showers but not everyone will get wet. Fair weather returns Monday and Tuesday with warming temperatures. Wet weather and perhaps even some wintry weather may reenter the picture mid to late week as several low pressure systems have the potential to affect northern New England.

NEAR TERM /TODAY/. This morning, ridging overhead noses in from the southwest with weak high pressure at the surface, keeping things quiet for the time being. A blanket of stratus clouds cover most of New England except for just southwest of the Whites where some patchy fog has developed. Today, a northern stream shortwave rotates through the Hudson Bay region, pushing a cold front across eastern NOAM.

Ahead of the cold front, clouds will tend to increase amid increasing southerly flow. Temperatures rise into the mid- to upper-50s over interior southern New Hampshire, and into the 40s to near 50 over western Maine where strengthening flow off the Gulf of Maine will limit warming. Scattered light rain showers arrive from the west during the afternoon and cross, with the cold front, during the evening into tonight.

SHORT TERM /TONIGHT THROUGH MONDAY/. Tonight, high over the Great Lakes pushes eastward into our area behind the departing cold front. Remaining showers will switch to snow for a brief time before drying entirely with a few tenths of accumulation possible over peaks. A few upslope clouds will linger into mid-day but overall skies should clear out. The main story on Monday will be the temperatures and dew points with a deep mixing layer forecast to develop under mostly sunny skies.

Current progs take mixing to around 700-750 mb during the day. Took these temperatures, mixed them to the surface, blended with some MOS guidance, and added a degree or so across the board and ended up with high temperatures in the 50s again, into the mid- 60s over southern interior NH. Dew points mix down to around 20-30. A seabreeze is unlikely to occur with breezy northwest winds around 10 kts, but some uncertainty remains. Some convergence along the MidCoast might help cooler air come ashore during the afternoon. Overall, it will be a very nice day which should help dry us out some.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/. Fair weather expected Monday night and Tuesday as the region remains in a broad cyclonic flow regime. A low pressure system is expected to move southeastward from the Great Lakes states Tuesday night and Wednesday bringing a relatively brief shot of precipitation to our region. Still plenty of disagreement in the 00z model suite as to the degree of amplification of the short wave trough which will have a fairly large bearing on our sensible weather Tuesday night and Wednesday. Right now will compromise and place highest PoPs across southern zones late Tuesday night and Wednesday. Some wet snow will be possible at higher elevations Wednesday morning.

Thereafter, the pattern remains quite active with the potential for several high-amplitude short wave trough to affect our region through early next week. The first of which is likely on Thursday with mainly rain, but some interior mixed precipitation possible. After that another system could affect the region late in the weekend or Monday. We'll have to keep an eye on the rivers and streams if we get several shots of rainfall over the course of the next 7 days.

AVIATION /07Z SUNDAY THROUGH THURSDAY/. Short Term /Through Monday/ . VFR prevails with light and variable winds this morning except for at LEB where a break in widespread stratus clouds have allowed patchy fog and mist to develop. South winds today turn southwesterly ahead of a crossing cold front. Scattered rain showers area accompanying the front this evening with at least patchy MVFR expected. Late tonight behind the front guidance suggests ceilings come down to MVFR before scattering out by morning. VFR under northwest flow on Tuesday.

Long Term . Mainly VFR conditions Monday night through Tuesday. Lower conditions possible late Tuesday night and Wednesday in lower ceilings and rain, particularly across southern NH and southernmost ME. Another system may affect the region Thursday and has the potential for heavier rainfall and widespread IFR conditions along with the potential for LLWS.

MARINE. Short Term . SCAs over the waters persist through today. The downward trend starts in the north, with improvement expected off the Mid Coast of Maine by the evening and elsewhere tomorrow. A cold front crosses the waters this evening with a few light rain showers possible. High pressure rules for Monday with offshore winds gusting to around 15-20 kts.

Long Term . Light northwesterly flow and calm seas for the start of the week. Thursday will see increasing southerly flow ahead of a cold front passing Thursday night with SCA likely through Friday.

TIDES/COASTAL FLOODING. Astronomical tides will peak late this week. With an active storm track expected for the next seven days we cannot rule out some coastal flood issues late next week as tides max out above 11.5 ft at Portland.

EQUIPMENT. The last GYX upper air observation was March 25 at 12Z. Unfortunately, a disruption in gas supply has temporarily halted observations from GYX. The order has been placed but a date of delivery remains TBD.

GYX WATCHES/WARNINGS/ADVISORIES. ME . None. NH . None. MARINE . Small Craft Advisory until 8 AM EDT Monday for ANZ152-154. Small Craft Advisory until 5 PM EDT this afternoon for ANZ150.



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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44032 - Buoy E0104 - Central Maine Shelf 17 mi86 min ENE 1.9 G 3.9 39°F 40°F7 ft1016.1 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 34 mi100 min WSW 3.9 G 5.8 41°F 42°F8 ft1017.3 hPa (+0.0)38°F
CASM1 - 8418150 - Portland, ME 35 mi60 min 40°F 42°F
44033 - Buoy F0103 - West Penobscot Bay 37 mi86 min E 1.9 G 3.9 38°F 2 ft1016.5 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wiscasset Airport, ME8 mi37 minN 010.00 miOvercast36°F34°F93%1018.2 hPa

Link to 5 minute data for KIWI

Wind History from IWI (wind in knots)
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Last 24hr56--54656S5S76S5S4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
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2 days ago--Calm--4--N7N845------4----6N86
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Tide / Current Tables for Southport, Townsend Gut, Maine
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Southport
Click for Map
Sun -- 03:01 AM EDT     0.36 feet Low Tide
Sun -- 05:15 AM EDT     Moonset
Sun -- 06:12 AM EDT     Sunrise
Sun -- 09:17 AM EDT     9.98 feet High Tide
Sun -- 03:38 PM EDT     -0.51 feet Low Tide
Sun -- 04:08 PM EDT     Moonrise
Sun -- 07:10 PM EDT     Sunset
Sun -- 09:53 PM EDT     9.66 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.82.60.90.40.92.54.87.29.19.99.78.46.13.41.1-0.3-0.40.62.75.37.69.29.79

Tide / Current Tables for Lowe Point (northeast of), Sasanoa River, Maine Current
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Lowe Point (northeast of)
Click for Map
Sun -- 01:14 AM EDT     -1.89 knots Max Ebb
Sun -- 04:56 AM EDT     0.00 knots Slack
Sun -- 05:15 AM EDT     Moonset
Sun -- 06:12 AM EDT     Sunrise
Sun -- 07:25 AM EDT     1.73 knots Max Flood
Sun -- 11:13 AM EDT     -0.00 knots Slack
Sun -- 01:41 PM EDT     -2.22 knots Max Ebb
Sun -- 04:08 PM EDT     Moonrise
Sun -- 05:29 PM EDT     0.00 knots Slack
Sun -- 07:11 PM EDT     Sunset
Sun -- 07:59 PM EDT     1.86 knots Max Flood
Sun -- 11:48 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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-1.2-1.9-1.7-1.2-0.70.11.11.71.61.410.3-1-2-2.2-1.8-1.2-0.50.61.51.91.71.40.9

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Gray/Portland, ME (6,6,7,8)
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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.