Wednesday, February19, 2020
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Marine Weather and Tides
Bath, 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 6:31AMSunset 5:15PM Wednesday February 19, 2020 5:59 AM EST (10:59 UTC) Moonrise 5:16AMMoonset 2:17PM Illumination 19% Phase: Waning Crescent; Moon at 25 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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ANZ153 Casco Bay- 545 Am Est Wed Feb 19 2020
.small craft advisory in effect through this evening...
Today..W winds 10 to 20 kt, becoming 15 to 20 kt this afternoon. Gusts up to 30 kt. Seas 2 to 4 ft.
Tonight..NW winds 10 to 20 kt, diminishing to 5 to 15 kt after midnight. Seas 2 to 4 ft. Light freezing spray.
Thu..NW winds 5 to 10 kt. Seas 2 to 3 ft. Light freezing spray.
Thu night..N winds 5 to 10 kt. Seas 2 to 3 ft in the evening, then 1 foot or less. Light freezing spray.
Fri..W winds 5 to 10 kt. Seas 1 foot or less. Light freezing spray in the morning.
Fri night..W winds 5 to 15 kt, becoming 10 to 15 kt after midnight. Seas 2 to 3 ft.
Sat..W winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft.
Sat night..W winds 5 to 10 kt. Seas 1 foot or less.
Sun..W winds around 5 kt. Seas 1 foot or less.
Sun night..W winds 5 to 10 kt. Seas 1 to 2 ft.
ANZ100 545 Am Est Wed Feb 19 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. Low pressure exits into the maritimes this morning with a strong northwest flow in its wake. High pressure will gradually build east into the region Thursday and Friday. &&


7 Day Forecast for Marine Location Near Bath, ME
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location: 43.92, -69.81     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 191046 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 546 AM EST Wed Feb 19 2020

SYNOPSIS. With the exception of some lingering upslope snow showers today across the higher terrain, we'll see a dry and seasonable day. Gusty northwest winds behind a departing storm system will draw much colder air into the region by tonight. This cold air will linger across the region through Friday along with dry weather. We'll see a quiet weekend with temperatures rebounding above normal as high pressure builds by to our south. The next chance for widespread precipitation is not expected until at least early next week.

NEAR TERM /UNTIL 6 PM THIS EVENING/.

545 AM . For this ESTF update minor adjustments to near term grids to reflect the latest mesonet and satellite trends.

Prev Disc . At 07z . a 1007 millibar low was entering the Bay of Fundy. A second 1000 millibar low was over Quebec with a trailing frontal system through New England. NWS Doppler Radar mosaic showed precipitation had largely dried up across the region. For today . a developing northwest flow behind the departing storm system with clearing downwind of the mountains. Upslope flow and steepening lapse rates should produce clouds and snow showers across the higher terrain today. This activity may briefly extend downwind of the higher terrain around midday before diminishing. Highs will range from the 20s across the mountains with 30s elsewhere However. the gusty northwest wind will make it feel decidedly colder. Highs will occur midday before taking a tumble during the afternoon in strong cold air advection.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM THURSDAY/. Some lingering clouds tonight across the higher terrain otherwise mostly clear and cold. Lows will be in the single numbers below zero across the mountains and mainly in the single numbers above zero elsewhere. Thankfully winds will drop off tonight which should keep wind chill values from reaching advisory criteria even in mountain sections On Thursday. some lingering clouds across the higher terrain otherwise a mostly sunny and cold day. Highs will range from 5 to 15 above in the mountains with upper teens to mid 20s for the remainder of the forecast area.

LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/. Overview: The long term period is expected to generally be dominated by quiet weather thanks to a large-scale pattern that keeps the coldest air well to our north and any disturbances elsewhere. Thursday night will have the coldest temperatures of the period by far as subzero temperatures reach into southern portions of our region. But temperatures rebound on Saturday and generally remain above normal through the rest of the period. Outside of some light snow showers in the mountains, our next decent chance for widespread precipitation is possible Monday into Tuesday; with warm temperatures in place, precipitation type will be in question.

Impacts: Very cold temperatures expected Thursday night, but light winds likely means that any wind chill advisories will not be necessary.

Details: Surface high pressure noses into New England Thursday night, which should provide some decent conditions for radiational cooling under mostly clear skies and with light to calm winds. Leaned on the colder guidance for low temperatures as well as the previous forecast . and the end result was an increase by a couple to a few degrees from the previous forecast. Still expecting lows in the teens below zero in the mountains, possibly approaching twenty below in some localized spots. Only southeastern NH will likely remain above zero with most locations dropping into the negative single digits south of the mountains.

High pressure and generally zonal flow aloft then dominate the region through the weekend. This will keep the sensible weather to a minimum with the noted exception of upslope snow showers in the mountains on Saturday as a disturbance passes well to our north. High temperatures will be a few degrees higher on Friday compared to Thursday, but above average temperatures make their return on Saturday and Sunday as high pressure again nudges in from the southwest.

Early next week, things begin to change as a potent low pressure system develops over the Great Plains and heads northeast. This system could provide the only widespread precipitation for our region in the long term period, but how much and what type are still very much up for discussion. With warm temperatures already in place and the exact track of the system to be decided, it is likely that precipitation type will be an issue for central and southern areas. And while some of the latest global deterministic guidance shows decent amounts of QPF (close to an inch), global ensemble probabilities for significant precipitation amounts are less enthusiastic. We will be monitoring this system in the coming days.

AVIATION /12Z WEDNESDAY THROUGH SUNDAY/. Short Term /Through Thursday/ . VFR with sct MVFR in mtn -SHSN. NW surface winds will gust up to 25 kt today before diminishing near sunset. Lingering MVFR cigs possible in the mtns tonight and Thursday.

Long Term . Light NW winds Thursday night become light W/SW winds by Saturday -SHSN possible at HIE on Saturday. but otherwise, quiet weather and VFR conditions expected at all terminals.

MARINE. Short Term /Through Thursday/ . As colder air floods into the area later today winds outside the bays should gust to gale with SCA's for the bays. Winds will drop off tonight with SCA's for open waters. We should see freezing spray develop tonight then linger through the day Thursday.

Long Term . Borderline SCA conditions for the outer waters early Thursday night due to gusty winds; light to moderate freezing spray also possible. WSW winds and seas increase on Saturday and SCAs will be possible for the outer waters. Otherwise, with high pressure generally dominating the waters, conditions will be rather quiet over the waters.

GYX WATCHES/WARNINGS/ADVISORIES. ME . None. NH . None. MARINE . Small Craft Advisory until 7 PM EST this evening for ANZ151- 153. Gale Warning until 7 PM EST this evening for ANZ150-152-154.



ES


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44032 - Buoy E0104 - Central Maine Shelf 28 mi116 min W 16 G 19 36°F 42°F10 ft1010 hPa
CASM1 - 8418150 - Portland, ME 29 mi66 min 35°F 37°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 32 mi70 min W 16 G 19 36°F 40°F7 ft1011.6 hPa (+0.4)32°F
44033 - Buoy F0103 - West Penobscot Bay 44 mi116 min W 14 G 16 33°F 5 ft1009.6 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wiscasset Airport, ME6 mi67 minW 310.00 miA Few Clouds29°F26°F89%1012.1 hPa

Link to 5 minute data for KIWI

Wind History from IWI (wind in knots)
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Last 24hrCalm3NE3Calm3NE5NE3CalmE3SE6SE76SE6E3CalmCalmCalm4NW5W3W4W4W3W3
1 day agoCalmCalm46NW75
G16
54445CalmCalm33Calm--CalmCalmCalmCalmCalm3Calm
2 days agoS4SW74SW10
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4SW6S54CalmW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Bath, Kennebec River, Maine
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Bath
Click for Map
Wed -- 02:48 AM EST     0.59 feet Low Tide
Wed -- 04:15 AM EST     Moonrise
Wed -- 06:33 AM EST     Sunrise
Wed -- 08:58 AM EST     6.68 feet High Tide
Wed -- 01:17 PM EST     Moonset
Wed -- 03:35 PM EST     -0.06 feet Low Tide
Wed -- 05:13 PM EST     Sunset
Wed -- 09:43 PM EST     5.78 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.91.70.80.61.22.445.56.46.76.35.33.92.30.90.100.82.23.74.95.65.85.3

Tide / Current Tables for Upper Hell Gate (Sasanoa River, Maine) Current
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Upper Hell Gate (Sasanoa River
Click for Map
Wed -- 01:41 AM EST     -0.61 knots Max Ebb
Wed -- 04:15 AM EST     Moonrise
Wed -- 05:27 AM EST     0.00 knots Slack
Wed -- 06:32 AM EST     Sunrise
Wed -- 09:48 AM EST     0.91 knots Max Flood
Wed -- 12:13 PM EST     -0.00 knots Slack
Wed -- 01:17 PM EST     Moonset
Wed -- 02:23 PM EST     -0.74 knots Max Ebb
Wed -- 05:13 PM EST     Sunset
Wed -- 06:21 PM EST     0.00 knots Slack
Wed -- 10:30 PM EST     0.88 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-0.5-0.6-0.5-0.4-0.20.30.70.80.90.90.70.1-0.5-0.7-0.7-0.7-0.5-0.20.30.60.70.80.8

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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weather_mapweather_map weather_map

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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.