Thursday, May25, 2017 L-36.com


Marine Weather and Tides
Kittery, ME

Version 3.4
What's New / NOTES
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:08AMSunset 8:12PM Thursday May 25, 2017 1:04 AM EDT (05:04 UTC) Moonrise 5:22AMMoonset 7:58PM Illumination 0% Phase: New Moon; Moon at 29 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- 927 Pm Edt Wed May 24 2017
.small craft advisory in effect from Thursday morning through Friday afternoon...
Tonight..S winds around 5 kt...becoming se after midnight. Seas 2 to 3 ft.
Thu..E winds 10 to 15 kt...increasing to 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft...building to 4 to 7 ft in the afternoon. Patchy drizzle. Rain in the afternoon.
Thu night..NE winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. Rain. Patchy fog. Vsby 1 to 3 nm.
Fri..N winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 9 ft. Patchy fog in the morning. Rain. Vsby 1 to 3 nm in the morning.
Fri night..N winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 8 ft...subsiding to 4 to 6 ft after midnight. A chance of rain in the evening.
Sat..N winds 5 to 10 kt...becoming E in the afternoon. Seas 3 to 5 ft.
Sat night..S winds 5 to 10 kt. Seas around 2 ft.
Sun..SE winds 5 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Sun night..SE winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. A chance of rain.
Mon..E winds around 10 kt. Seas 3 to 4 ft. Showers likely.
Mon night..E winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers.
ANZ100 927 Pm Edt Wed May 24 2017
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure moves off the coast tonight while low pressure slowly approaches from the mid atlantic Thursday and moves northeast just outside of the gulf of maine Friday. The center of low pressure exits to the northeast on Saturday. A narrow ridge of high pressure builds in for Sunday morning ahead of a northward moving warm front. Low pressure to the west lifts north through Monday.

7 Day Forecast for Marine Location Near Kittery, ME
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location: 43.08, -70.75     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 250139
afdgyx
area forecast discussion
national weather service gray me
939 pm edt Wed may 24 2017

Synopsis
Low pressure over the ohio valley will slowly drift east and
redevelop along the mid atlantic coast Thursday. The system will
then move northeast into the gulf of maine Friday and into the
canadian maritimes Saturday. Weak high pressure will build over
the region on Saturday. Low pressure will approach from the
west on Sunday.

Near term until 6 am Thursday morning
Any leftover sprinkles or isolated showers will be ending over
the mountains through midnight which were mainly diurnally
driven.

Clouds will advance into southern sections overnight, however
mainly high clouds. This may prevent fog from forming over much
of the region. As the CU continues to dissipate over
northern mountain sections, there is the possibility of late
night patchy fog further away from the approaching storm.

Made minor adjustments to surface temperatures and dew points
during the overnight hours based on current trends. Overnight
lows will bottom out in the lower 50s in many communities as
clouds continue to increase and thicken late tonight into
Thursday morning, making for relatively uniform readings. There
will be some cooler 40s in the mountains.

Prev disc...

temperatures have peaked in the 60s and 70s with
coastal locations already cooling under the influence of a weak
sea breeze.

An extensive cirrus shield associated with low pressure passing
offshore will gradually shift east with time along with a
baroclinic zone. Over the ohio valley a deepening low pressure
system is being fed by tropical moisture and lofting additional
cloud cover towards new england. A warm front extending from
this system snaked into ny state and was lifting north. Models
are still showing some light showers over the mountains along
the warm front... But currently we seem to be too dry for
anything to reach the ground. There is still a possibility of a
light shower late this afternoon and evening over the higher
terrain.

Expecting a quiet and dry night for most locations with mostly
cloudy skies. Overnight lows drop into the 40s and 50s.

Short term 6 am Thursday morning through Thursday night
Clouds and precipitation chances increase Thursday as the ohio
valley stacked low nears from the sw. Showers arrive in southern
nh late morning and move east during the day. The surface low
will rotate offshore near CAPE cod and generally stay well south
of the gulf of maine as it moves east. This will keep more
precipitation on the coast and less inland. Easterly winds will
be gusty and keep conditions raw and cool in a marine layer
which will extend well inland. This will prevent any chance for
thunderstorms. Highs will be capped in the upper 50s and 60s.

Thursday night into Friday morning will have widespread rain
with some heavy downpours. The majority of the heaviest rains
will fall during this time. Once again more precipitation will
fall along the coast and just inland than falls towards the
north. Expect some fog and drizzle during this time as well.

Long term Friday through Wednesday
An overall very active, cool, and wet pattern for the outlook
period.

Low pressure will continue to redevelop along the mid atlantic
coast and move into the gulf of maine Friday. A broad damp
onshore flow with cool temps expected. Widespread rains are
expected across the region with total QPF amounts from the storm
ranging from around a 1 2 inch in the mountains to 1.25 along
the coast. Astronomical high tides will continue to be a problem
due to the onshore flow (see tides coastal flooding section).

The system exits the region northeast into the maritimes on
Saturday with weak high pressure following allowing for some
clearing.

By late Sunday another approaching upper S WV rotating
northeast toward new england will spread another period of cool
damp onshore flow as it allows another weak secondary low
to redevelop off the southern new england coast and moves it into
the gulf of maine Monday. This system quickly exits into the
maritimes Monday night followed by another weak area of high
pressure for Tuesday.

Another upper trof with more wet unsettled weather should arrive
for Wednesday.

Aviation 02z Thursday through Monday
Short term...VFR today through tonight. Ifr lifr ceilings and
visibilities will develop on Thursday in showers for southern
terminals before spreading north. Ra which will become heavy
between 00z-12z Friday for coastal southern terminals. Fog and
drizzle will be prevalent- especially along the coast further
decreasing flight conditions. Areas of MVFR ceilings
visibilities are more likely for the north.

Long term... Ifr conditions Friday. Significant improvement
likely will not occur until sat... When low pressure begins to
pull away. Weak ridging Sat into Sun will allow a return toVFR
conditions.

Marine
Short term... Scas have been issued beginning early Tuesday
afternoon through Friday afternoon for building seas and gusty
winds.

Long term... SCA conditions will continue into Fri night as a
coastal storm strengthens in the gulf of me. Low pressure will
not pull away until sat... So winds and seas will only gradually
diminish into the weekend.

Tides coastal flooding
Minor and isolated coastal flooding is possible this evening
from portland and points south along the coast. However, any
high water issues should be minor and with limited wave action,
any splash-over will likely be minimal.

Higher astronomical tides expected Thursday night with ene onshore
winds increasing and waves gradually building over the region.

Estofs forecast and splash-over matrices suggest there should
be some areas with minor coastal flooding and splash-over and
advisories will likely be needed. In hampton, water levels
approaching 12 feet will be on the high end of the minor
category and moderate coastal flooding is possible in that
location.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... Small craft advisory from 2 pm Thursday to 2 pm edt Friday for
anz151-153.

Small craft advisory from 11 am Thursday to 2 pm edt Friday
for anz150-152-154.

Jc


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGXN3 - Great Bay Reserve, NH 4 mi80 min Calm 49°F 1012 hPa49°F
IOSN3 - Isle of Shoals, NH 10 mi65 min SSW 2.9 G 2.9 55°F 1011.9 hPa (+1.1)49°F
44030 - Buoy B0102 - Western Maine Shelf 18 mi121 min SSW 3.9 G 3.9 54°F 53°F3 ft1011.5 hPa
WELM1 - 8419317 - Wells, ME 19 mi47 min Calm G 1 50°F 1012.5 hPa
WEXM1 - Wells Reserve, ME 21 mi65 min Calm 49°F 49°F
44098 - Jeffrey's Ledge, NH (160) 36 mi29 min 51°F3 ft
44029 - Buoy A0102 - Mass. Bay/Stellwagen 40 mi121 min NNE 1.9 G 1.9 55°F 55°F2 ft1010.6 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 45 mi75 min SSW 1.9 G 1.9 53°F 53°F3 ft1011.7 hPa (+1.2)51°F
CASM1 - 8418150 - Portland, ME 48 mi47 min 58°F 48°F1012.3 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pease Air Force Base / Portsmouth, NH4 mi67 minN 010.00 miMostly Cloudy51°F48°F93%1012.2 hPa
Rochester - Skyhaven Airport, NH16 mi74 minN 010.00 miFair52°F48°F86%1011.5 hPa
Sanford, Sanford Regional Airport, ME22 mi69 minN 010.00 miFair46°F46°F100%1013.4 hPa

Wind History from PSM (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmNW4CalmE3NE3E3SE4SE4E7SE6E7SE7SE8SE10SE6SE5S4CalmCalm
1 day agoE3CalmCalmNW5W3CalmNW4NW5N7N4CalmW5CalmSW4W4SE8SE4S3SE6CalmSE4CalmCalmCalm
2 days agoSW4S3CalmSW5CalmSW3CalmCalmCalmSE4S8S9S15S11S8SE8SE9SE8E6E5SE5CalmE5E4

Tide / Current Tables for Portsmouth, Portsmouth Harbor, New Hampshire
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Portsmouth
Click for Map
Thu -- 05:10 AM EDT     Sunrise
Thu -- 05:18 AM EDT     -1.20 feet Low Tide
Thu -- 05:22 AM EDT     Moonrise
Thu -- 11:37 AM EDT     8.97 feet High Tide
Thu -- 03:46 PM EDT     New Moon
Thu -- 05:32 PM EDT     -0.61 feet Low Tide
Thu -- 07:58 PM EDT     Moonset
Thu -- 08:09 PM EDT     Sunset
Thu -- 11:51 PM EDT     10.16 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
9.37.552.2-0.1-1.1-0.90.52.85.37.58.88.97.95.83.30.9-0.4-0.50.72.95.68.19.7

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
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Portsmouth Harbor Entrance
Click for Map
Thu -- 12:34 AM EDT     -0.00 knots Slack
Thu -- 03:28 AM EDT     -2.46 knots Max Ebb
Thu -- 05:10 AM EDT     Sunrise
Thu -- 05:22 AM EDT     Moonrise
Thu -- 07:19 AM EDT     0.00 knots Slack
Thu -- 09:23 AM EDT     1.59 knots Max Flood
Thu -- 12:59 PM EDT     -0.00 knots Slack
Thu -- 03:46 PM EDT     New Moon
Thu -- 03:48 PM EDT     -2.29 knots Max Ebb
Thu -- 07:27 PM EDT     0.00 knots Slack
Thu -- 07:57 PM EDT     Moonset
Thu -- 08:09 PM EDT     Sunset
Thu -- 09:45 PM EDT     1.90 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.5-0.4-1.6-2.4-2.4-2-1.4-0.40.81.51.51.10.7-0-1.1-2-2.3-1.9-1.3-0.50.71.71.91.5

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for Gray/Portland, ME (1,6,7,8)
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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.