Wednesday, April25, 2018 L-36.com


Marine Weather and Tides
Kennebunk, ME

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 5:40AMSunset 7:38PM Wednesday April 25, 2018 2:20 AM EDT (06:20 UTC) Moonrise 2:53PMMoonset 3:47AM Illumination 75% Phase: Waxing Gibbous; Moon at 10 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- 953 Pm Edt Tue Apr 24 2018
.small craft advisory in effect from Wednesday afternoon through Thursday evening...
Overnight..S winds 15 to 20 kt, diminishing to 5 to 15 kt. Seas 2 to 4 ft.
Wed..SE winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 3 ft, building to 3 to 5 ft in the afternoon. Rain. Vsby variable to less than one quarter nm in the afternoon.
Wed night..SE winds 15 to 25 kt, diminishing to 10 to 20 kt after midnight. Seas 5 to 8 ft. Rain. Areas of fog in the evening. Areas of fog after midnight. Vsby variable to less than one quarter nm, increasing to 1 to 3 nm after midnight.
Thu..S winds up to 10 kt, becoming sw in the afternoon. Seas 5 to 7 ft. A chance of rain in the morning, then a chance of showers in the afternoon. Areas of fog in the morning, then patchy fog in the afternoon. Vsby 1 to 3 nm in the morning.
Thu night..W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 4 to 7 ft.
Fri..SW winds 5 to 10 kt, becoming S in the afternoon. Seas 4 to 6 ft.
Fri night..S winds 5 to 10 kt. Seas 4 to 5 ft. A chance of showers.
Sat..S winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.
Sat night..W winds around 10 kt with gusts up to 20 kt. Seas 3 to 5 ft.
Sun..W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft.
Sun night..W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.
ANZ100 953 Pm Edt Tue Apr 24 2018
Synopsis for stonington me to merrimack river ma out to 25 nm.. Low pressure develops along the mid atlantic coast tonight and then moves north toward new england on Wednesday. As the low moves through northern new england on Thursday it will send a cold front eastward across the gulf of maine with high pressure building behind it through Friday morning. The next low may track up the east coast and toward the gulf of maine as early as Friday night with a stronger cold front arriving on Saturday.

7 Day Forecast for Marine Location Near Kennebunk, ME
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location: 43.32, -70.56     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 250158
afdgyx
area forecast discussion
national weather service gray me
958 pm edt Tue apr 24 2018

Synopsis
Low pressure moves north into the area Wednesday and Wednesday
night allowing rain to overspread the area from the southwest
in the morning and work northeast by afternoon. A good soaking
rain is expected for most of the region. This system will slowly
exit the region Thursday. A cold front on Saturday will bring
colder air back into the area, with a freeze possible by Sunday
morning for some of the area.

Near term until 6 am Wednesday morning
10 pm update... Little change to the going forecast. Winds have
continued to diminish and clouds continue to increase. Light
rain is expected to begin overspreading southern nh late
tonight. The heaviest rainfall from this system is still
expected to be Wed afternoon and evening.

655 pm update... Have updated the forecast - mainly for latest
trends in temperatures and sky cover. Clouds continue to
increase this evening with winds diminishing. Dry weather is
expected through much of the night.

Previously...

strong upper ridge continues strong subsidence keeping skies
clear across the region into the evening. Mid high clouds will
spill through the ridge from west-east later tonight ahead of
the approaching low pressure system from the mid atlantic
region. Models similar on timing overall, spreading rain across
nh after midnight and into southwest maine toward morning. The
increase in cloud cover and developing south to southeast
onshore flow will combine to help keep temps mild tonight with
lows mostly in the 40s.

Short term 6 am Wednesday morning through Wednesday night
Models agree on lifting the upper trof with its associated
surface low northeast across the region Wed and Wed night.

Soaking rains can be expected with QPF in the .75 to 1.5 inches
range. Rfc QPF guidance appears reasonable and accepted. With
snowmelt in the mountains combining with the rainfall, some
area river flows may approach flood stage.

Temps will be much cooler Wed due to the rain and onshore flow
with highs only reaching into the upper 40s and lower 50s.

Meanwhile overnight lows Wed will stay in the mid to upper 40s.

Long term Thursday through Tuesday
The 500 mb trend across noam ans surrounding bodies of water
will trend toward a somewhat less blocky patter, as closed lows
separate from the NRN stream and allow a more zonal flow, with
warmer air moving pole ward toward our latitude. This will not
happen quickly, and will still have to deal with one trough that
cools things down over the weekend, but overall, no major
systems in the area, and perhaps a more significant warming
trend next week.

Thursday will see weakening 500 mb track NE as sfc low tracks
across the CWA in the morning. Showers and some light rain will
be lingering into the morning, but should see showers become
more infrequent and maybe some breaks of Sun in the south during
the afternoon. Highs will be in the mid 50s to upper 50s across
most of the cwa, but southern nh could see temps rise into the
low 60s. Some lingering showers will be possible in the
mountains Thu night, but for the most part should see some
clearing everywhere, with lows in the upper 30s N to mid 40s s.

Models agree, in principle, that another sfc wave develops in
response to deepening 500 mb wave to our n, and will bring a
round of showers through new england somewhere in the fri-sat
nite time period. Chc pops are included for all these periods
for now, and will move up to likely pops once there's a better
signal as to when this system moves thru. Temps will remain
fairly near normal in this time frame with highs in the upper
50s to mid 60s and lows in the mid 30s to mid 40s Friday and
Saturday.

It will turn briefly colder behind this system Sunday into
Monday, with temps running a little below normal, and highs
mainly in the 50s Sunday, and slightly warmer on Monday.

The 12z euro keep up with the promise of a big warm ridge
building over the WRN atlantic and pumping in some very warm
air by the middle of next week, which is supported by the gfs,
although not quite as warm.

Aviation 02z Wednesday through Sunday
Short term...VFR conditions thru tonight. Rain spreads from
south to north Wed reducing conditions to ifr.

Long term... Thu morning will start with ifr or lower, but should
see improvement to MVFR orVFR in the south during the
afternoon.VFR is expected Thu night into Friday morning, but
may see conds deteriorate to MVFR, or even ifr at times late
Friday into Saturday.

Marine
Short term... Winds and seas will remain below SCA thresholds
tonight after a few gusts around 25 kt this evening. Increasing
onshore flow Wed afternoon will allow winds and seas to build
to SCA thresholds over the outer waters and continue through
Wednesday night.

Long term... Seas will remain high through the day Thu despite
weakening winds. The waters should remain quiet Fri and sat, but
may approach SCA in W flow behind a cold front Sat night into
Sunday.

Hydrology
Basin average rainfall of up to 1.5 inches is expected Wednesday
and Wednesday night. This, along with recent snowmelt in the
north, will allow rivers to rise - especially Wednesday night. A
flood watch may be needed for some mountain and foothill zones.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... Small craft advisory from 5 pm Wednesday to 8 pm edt Thursday
for anz150-152-154.

Near term... Mle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WELM1 - 8419317 - Wells, ME 0 mi51 min SSW 5.1 G 7 49°F 46°F1023.1 hPa
WEXM1 - Wells Reserve, ME 1 mi81 min S 4.1 47°F 38°F
44030 - Buoy B0102 - Western Maine Shelf 12 mi77 min SSW 16 G 18 46°F 43°F3 ft1021.9 hPa
BGXN3 - Great Bay Reserve, NH 23 mi96 min SSW 6 54°F 35°F
IOSN3 - Isle of Shoals, NH 25 mi81 min SSW 23 G 24 49°F 1023.1 hPa (-0.9)37°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 26 mi91 min SSW 19 G 23 46°F 42°F5 ft1022.5 hPa (-0.3)40°F
CASM1 - 8418150 - Portland, ME 29 mi51 min 49°F 42°F1022.7 hPa
44098 - Jeffrey's Ledge, NH (160) 42 mi45 min 42°F3 ft

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sanford, Sanford Regional Airport, ME9 mi25 minSSW 510.00 miFair52°F36°F55%1022.9 hPa
Rochester - Skyhaven Airport, NH19 mi30 minVar 410.00 miFair52°F36°F55%1022.1 hPa
Pease Air Force Base / Portsmouth, NH21 mi4.4 hrsSSW 910.00 miOvercast56°F32°F42%1023.5 hPa

Wind History from SFM (wind in knots)
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Last 24hrSW7SW8SW3CalmCalmSW4S5SW75S9SW8SW9S11
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1 day agoCalmW3CalmW3SW3CalmW33NE43N7NW6SE10SE9SE8S8S5CalmS6SW4SW5SW3SW5SW7
2 days agoW3CalmCalmW5NW4N4NW6N115W8NW10
G16
W5NW8W10N9--S3CalmCalmW3SW3CalmW3Calm

Tide / Current Tables for Wells, Webhannet River, Maine
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Wells
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Wed -- 01:39 AM EDT     0.52 feet Low Tide
Wed -- 03:47 AM EDT     Moonset
Wed -- 05:44 AM EDT     Sunrise
Wed -- 08:02 AM EDT     9.58 feet High Tide
Wed -- 02:16 PM EDT     -0.24 feet Low Tide
Wed -- 02:53 PM EDT     Moonrise
Wed -- 07:37 PM EDT     Sunset
Wed -- 08:43 PM EDT     9.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
20.80.61.43.15.37.599.69.17.55.22.70.7-0.201.33.45.87.89.19.48.56.6

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
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Portsmouth Harbor Entrance
Click for Map
Wed -- 03:47 AM EDT     Moonset
Wed -- 03:48 AM EDT     0.00 knots Slack
Wed -- 05:43 AM EDT     1.10 knots Max Flood
Wed -- 05:45 AM EDT     Sunrise
Wed -- 09:35 AM EDT     -0.00 knots Slack
Wed -- 12:27 PM EDT     -1.95 knots Max Ebb
Wed -- 02:54 PM EDT     Moonrise
Wed -- 04:21 PM EDT     0.00 knots Slack
Wed -- 06:22 PM EDT     1.16 knots Max Flood
Wed -- 07:37 PM EDT     Sunset
Wed -- 10:18 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.7-1.6-1.4-0.80.20.91.10.90.80.4-0.4-1.4-1.9-1.9-1.7-1.3-0.40.61.11.110.90.3-0.7

Weather Map and Satellite Images
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GOES 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 (2,6,7,8)
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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.