Wednesday, August21, 2019 L-36.com


Marine Weather and Tides
Bowdoinham, ME

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 5:49AMSunset 7:36PM Wednesday August 21, 2019 9:23 PM EDT (01:23 UTC) Moonrise 10:39PMMoonset 11:34AM Illumination 61% 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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ANZ153 Casco Bay- 722 Pm Edt Wed Aug 21 2019
Rest of tonight..S winds 5 to 10 kt, becoming sw. Seas 2 to 3 ft. Showers with tstms likely this evening, then a slight chance of showers. Areas of fog. Some tstms may produce gusty winds and heavy rainfall this evening. Vsby 1 to 3 nm.
Thu..SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog in the morning. A chance of showers and tstms in the afternoon. Vsby 1 to 3 nm in the morning.
Thu night..NW winds 5 to 10 kt. Seas 2 to 3 ft, subsiding to 1 to 2 ft after midnight.
Fri..W winds around 5 kt. Seas 1 to 2 ft.
Fri night..NW winds 5 to 10 kt. Seas 1 foot or less.
Sat..N winds 5 to 10 kt. Seas 1 foot or less.
Sat night..NE winds 5 to 10 kt. Seas 1 foot or less, then 2 to 3 ft after midnight.
Sun..E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
Sun night..NE winds 5 to 10 kt. Seas around 2 ft.
Mon..E winds 5 to 10 kt. Seas around 2 ft.
Mon night..SE winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms.
ANZ100 722 Pm Edt Wed Aug 21 2019
Synopsis for stonington me to merrimack river ma out to 25 nm.. A warm front will move through the waters tonight with showers and Thunderstorms. A cold front will cross through the region Thursday afternoon and evening with high pressure building over the waters on Friday and continuing through the weekend. &&


7 Day Forecast for Marine Location Near Bowdoinham, ME
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location: 44.01, -69.9     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 211938
afdgyx
area forecast discussion
national weather service gray me
338 pm edt Wed aug 21 2019

Synopsis
Showers and thunderstorms will move through the region this
evening. A cold front will sweep across the region early
tomorrow followed by cooler and drier air. High pressure will
build in over the weekend and early next week allowing for fair
weather.

Near term through tonight
Warm front is beginning to sneak into southern new hampshire at
this time... With associated thunderstorm activity beginning to
weaken as it heads east into retreating cooler airmass.

Attention through this evening will turn to convective line
associated with prefrontal trough now over eastern new york.

Watching cloud trends on GOES 16 visible imagery suggests that
some partial clearing will work into far southern nh ahead of
this line... And expect this to be the focus of the severe threat
through the evening hours. While instability will be beginning
to wane... 0-6km shear will remain AOA 30kts with afternoon cams
suggesting a linear mode with bowing segments. In fact... 0-3km
shear also remains rather impressive... With 0-3km storm relative
helicity values suggesting some threat for not only damaging
winds... But mesovortex development with an isolated tornado
still possible. This matches well with what has occurred with
the line over eastern new york.

Beyond the convection... Expect ample boundary layer moisture to
result in areas of fog overnight as temperatures fall back into
the 60s... With the potential for it to be locally
dense... Particularly along the midcoast.

Short term Thursday through Thursday night
Trailing cold front will move through the region Thursday
afternoon. While moisture will be more limited than
today... There will be a rather impressive wind field aloft. At
this time... Expect a line of scattered showers to move
southeast through the region in the afternoon with the greatest
threat for thunder along the midcoast where instability will be
greatest as the front will reach here last . Will include
thunder mention... But not enhanced wording at this time given
lower confidence in occurrence. Temperatures in the mountains
remain in the 70s... But ahead of the front temperatures will
reach the mid upper 80s.

Front settles south of the region Thursday night with clearing
skies. Temperatures will fall into the 50s with valley fog
likely.

Long term Friday through Wednesday
Looks like a fairly quiet extended period. Long term starts with a
long wave trough dominating the upper level pattern over the eastern
united states, with west to southwest flow over new england. This
looks to be a fairly dry and cool pattern for us. The trough
migrates off to the east on Saturday as upper level ridging moves in
from the west. The upper level ridge will remain in place through at
least Tuesday of next week. High temperatures through this time
frame should be in the 70s, with overnight lows in the 40s and 50s.

The next chance for appreciable precipitation won't be until
Wednesday night and Thursday of next week.

Aviation 19z Wednesday through Monday
Short term through Thursday night ...

showers and embedded thunderstorms will impact the terminals
through this evening before moving east of the area overnight.

Best threat for a severe thunderstorm will be at leb con mht psm
through this evening. Otherwise... Local ifr likely in the
showers and storms before the focus turns to fog overnight with
ifr likely throughout the region and vlifr lifr more likely for
aug and rkd.

Long term... MostlyVFR with early morning valley fog.

Marine
Short term through Thursday night ...

south southwesterly winds continue through Thursday before
shifting westerly and then northwesterly behind a cold front
Thursday night. Winds will near SCA levels for a time overnight
tonight over the outer waters.

Long term... No flags expected.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... None.

Synopsis... Pohl
near term... Arnott
short term... Arnott
long term... Pohl
aviation... Arnott pohl
marine... Arnott pohl


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 31 mi54 min 67°F 64°F
44032 - Buoy E0104 - Central Maine Shelf 35 mi80 min ESE 7.8 G 7.8 65°F 63°F2 ft1009.5 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 36 mi94 min SE 7.8 G 9.7 67°F 66°F2 ft1009.4 hPa (-2.4)67°F
44033 - Buoy F0103 - West Penobscot Bay 48 mi80 min SE 9.7 G 12 64°F 63°F1 ft1010.7 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wiscasset Airport, ME11 mi91 minE 47.00 miLight Rain69°F68°F96%1011 hPa
Auburn-Lewiston, ME21 mi88 minN 010.00 miOvercast69°F68°F96%1012.2 hPa
Augusta, Augusta State Airport, ME22 mi91 minSE 44.00 miLight Rain Fog/Mist68°F68°F100%1011.1 hPa

Link to 5 minute data for KIWI

Wind History from IWI (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm43S6S3SW4SW4CalmSE3E4E5E4SE4
1 day agoCalmCalmCalmCalmCalmCalmCalmNE3CalmCalm3334Calm3355S4S6SW5CalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalm3CalmCalmCalmCalmCalmS3S645S5S5S3S3S4CalmCalm

Tide / Current Tables for Bowdoinham, Cathance River, Maine
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Bowdoinham
Click for Map
Wed -- 05:50 AM EDT     Sunrise
Wed -- 05:53 AM EDT     5.60 feet High Tide
Wed -- 11:34 AM EDT     Moonset
Wed -- 12:08 PM EDT     0.59 feet Low Tide
Wed -- 06:14 PM EDT     5.68 feet High Tide
Wed -- 07:34 PM EDT     Sunset
Wed -- 10:38 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.6123.24.55.45.65.34.43.3210.60.81.62.84.15.25.75.54.93.82.51.4

Tide / Current Tables for Upper Hell Gate (Sasanoa River, Maine) Current
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Upper Hell Gate (Sasanoa River
Click for Map
Wed -- 01:07 AM EDT     0.00 knots Slack
Wed -- 04:05 AM EDT     0.82 knots Max Flood
Wed -- 05:49 AM EDT     Sunrise
Wed -- 08:09 AM EDT     -0.00 knots Slack
Wed -- 10:21 AM EDT     -0.83 knots Max Ebb
Wed -- 11:33 AM EDT     Moonset
Wed -- 01:21 PM EDT     0.00 knots Slack
Wed -- 04:30 PM EDT     0.89 knots Max Flood
Wed -- 07:34 PM EDT     Sunset
Wed -- 08:44 PM EDT     -0.00 knots Slack
Wed -- 10:38 PM EDT     Moonrise
Wed -- 10:48 PM EDT     -0.76 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.3-00.30.60.80.70.50.30.1-0.4-0.8-0.7-0.4-0.10.20.50.80.90.70.50.3-0.1-0.6-0.8

Weather Map and Satellite Images
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wmap_A
GOES 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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Gray/Portland, ME (21,6,7,8)
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Ground Weather Radar Station Portland, ME
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Disclaimer:
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 numerious 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.