Thursday, March23, 2017 L-36.com


Marine Weather and Tides
Pittsfield, NH

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:38AMSunset 7:02PM Thursday March 23, 2017 2:18 AM EDT (06:18 UTC) Moonrise 4:06AMMoonset 2:16PM Illumination 20% 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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ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 1228 Am Edt Thu Mar 23 2017
.gale warning in effect until 8 am edt this morning...
.freezing spray advisory in effect until 10 am edt this morning...
Rest of tonight..NW winds 20 to 30 kt with gusts up to 40 kt. Seas 4 to 6 ft. Moderate freezing spray.
Thu..NW winds 15 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Moderate freezing spray in the morning.
Thu night..NW winds 10 to 20 kt with gusts up to 25 kt...becoming sw up to 10 kt after midnight. Seas 2 to 4 ft.
Fri..SW winds 10 to 20 kt...increasing to 15 to 25 kt in the afternoon. Seas 2 to 3 ft...building to 3 to 5 ft in the afternoon. A chance of snow or rain in the morning... Then rain likely in the afternoon. Vsby 1 to 3 nm.
Fri night..SW winds 15 to 20 kt...becoming W 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Rain likely...mainly in the evening.
Sat..NW winds 10 to 15 kt with gusts up to 20 kt...becoming N 5 to 10 kt in the afternoon. Seas 2 to 4 ft. A chance of rain.
Sat night..N winds 5 to 15 kt...becoming ne 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. A chance of rain in the evening. Vsby 1 to 3 nm.
Sun..NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft.
Sun night..E winds 5 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of snow. Vsby 1 to 3 nm.
Mon..E winds 10 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. Rain and snow likely. Vsby 1 to 3 nm.
Mon night..NE winds 10 to 20 kt with gusts up to 25 kt. Seas 6 to 8 ft. A chance of rain and snow. Vsby 1 to 3 nm.
ANZ100 1228 Am Edt Thu Mar 23 2017
Synopsis for stonington me to merrimack river ma out to 25 nm.. Strong northwest winds will continue to usher in arctic air tonight. High pressure will build in from the west Thursday into Thursday night. A warm front will cross the area from the west on Friday. Another cold front will drop down from the north Saturday morning with high pressure settling into northern maine on Sunday.

7 Day Forecast for Marine Location Near Pittsfield, NH
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location: 43.24, -71.19     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 230343
afdgyx
area forecast discussion
national weather service gray me
1143 pm edt Wed mar 22 2017

Synopsis
The passage of an arctic front will allow for cold temperatures
to continue through Thursday. A warm front will move in from
the west on Friday with some light snow and rain ahead of it.

Another cold front will drop down from the north on Saturday
with more cold air expected for Sunday and Monday. Low pressure
tracking south of new england on Monday could bring some light
snow or a wintry mix of precipitation Monday into Monday night.

Another low pressure system will track through new england on
Wednesday with another chance of wintry precipitation.

Near term /until 6 am Thursday morning/
1140 pm update... Little change to the going forecast. Winds
continue to gradually diminish and skies are clear. Certainly an
an anomalously cold march night in store!
905 pm update... Have cancelled the wind advisory as latest obs
indicate below-advisory levels across the vast majority of the
cwa. Otherwise, a clear but very cold late march night will
continue.

705 pm update... Winds continue to be the story early this
evening as well as the cold air. Peak gusts as of 23z show
values still around 40 kt at times, so will continue the wind
advisory. Wind gusts should come down some over the next hour or
two due to the loss of daytime heating and mixing. Therefore, we
may be able to cancel the advisory early.

Previously...

high pressure building in from the west tonight will maintain a
tight northwesterly gradient across the region. Wind gusts of 40
to 50 mph can be expected into the evening hours before winds
diminish somewhat later this evening. Will be continuing wind
advisories through midnight. Lingering diurnal clouds in the
mountains should dry up this evening. Have gone several degrees
below guidance for overnight lows due to the unusually cold
airmass for this time of year. Looking for lows of 5 below to 5
above north with readings bottoming out in the single numbers
south.

Short term /6 am Thursday morning through Thursday night/
Sunny but unseasonably cold weather continues on Thursday as
high pressure crests over the region. Expect gusty winds in the
morning to gradually drop off in the afternoon. Highs will top
out at 15 to 25 north and in the mid 20s to near 30 south.

High pressure will shift offshore Thursday night and a broad
area of weak over-running will shift in from the west. Looking
for increasing clouds overnight with a chance of snow showers
pushing into western zones by daybreak. Expect any precip to be
light and spotty. Lows overnight will range from 5 to 15 north
and will range through the teens to near 20 south.

Long term /Friday through Wednesday/
Active winter pattern will continue into next week. Models
continue to diverge somewhat as to the strength and frequency of
approaching systems.

Models are in relatively good agreement with a strong warm air
advection pattern on Friday as a southwesterly flow develops.

Radiational cooling will have already occurred during the
morning hours, so boundary layer temperatures will remain cool
throughout much of the day. As the precipitation crosses the
region, central areas have a potential for a light mix of sleet
and freezing rain to be combined with the snow despite it being
so late in the season. Some snow will accumulate in the north,
with a possible changeover to rain over southern locations
during the afternoon.

Another very cold airmass builds southeastward from canada on
Saturday. This will not be as cold as our most recent airmass as
the core of the coldest air remains locked up in canada.

Nevertheless, the persistent presence of the surface high over
the weekend will divert the next approaching system to our
south early next week. By Monday, low pressure may be crossing
through the gulf of maine, leaving a mixture of snow to rain
from north to south. The euro model is slower with the passage
of this system.

Yet another system will cross the region late Tuesday into
Wednesday. This will be followed by another blast of cold air
and plenty of snow showers late in the week.

Aviation /04z Thursday through Monday/
Short term...VFR tonight through Thursday night.

Long term... Areas of MVFR and ifr conditions developing Friday
ahead of a warm front and again on Monday with low pressure
passing south of the region. Mixed precipitation will be
possible with these two events. Yes another mixed precipitation
event is possible Tuesday night into Wednesday, lowering the
visibilities and ceilings.

Marine
Short term... Continuing gales through midnight.

Long term... Gusty winds expected over the waters Friday from
the southwest. Winds may possibly approach gale force for a few
hours. Scas are possible on Monday with a northeast wind
developing ahead of low pressure. Gales are possible on
Wednesday.

Gyx watches/warnings/advisories
Me... None.

Nh... None.

Marine... Freezing spray advisory until 10 am edt Thursday for
anz150>154.

Gale warning until midnight edt tonight for anz153.

Gale warning until 8 am edt Thursday for anz150>152-154.

Near term... Ekster


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGXN3 - Great Bay Reserve, NH 23 mi94 min WNW 8.9 18°F 1027 hPa-1°F
WELM1 - 8419317 - Wells, ME 34 mi49 min NW 7 G 9.9 17°F 37°F1026.2 hPa
WEXM1 - Wells Reserve, ME 35 mi79 min WNW 8.9 17°F -5°F
IOSN3 - Isle of Shoals, NH 35 mi79 min NW 26 G 32 18°F 1025.5 hPa (+2.5)-3°F
44030 - Buoy B0102 - Western Maine Shelf 41 mi75 min NW 19 G 23 20°F 39°F3 ft1025.5 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rochester - Skyhaven Airport, NH14 mi28 minNW 18 G 2510.00 miFair and Breezy15°F-5°F40%1025 hPa
Concord Municipal Airport, NH17 mi28 minNW 17 G 2310.00 miFair16°F-2°F43%1027.6 hPa
Pease Air Force Base / Portsmouth, NH22 mi81 minWNW 14 G 2210.00 miFair16°F-5°F38%1026.1 hPa
Manchester Airport, NH24 mi26 minNW 1010.00 miFair17°F-6°F35%1029.2 hPa

Wind History from DAW (wind in knots)
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Last 24hrCalmCalm36NW10
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1 day agoNW5N3NW4CalmCalmCalmCalmCalmE3CalmS34333CalmNW7NW3CalmCalmNW7NW4CalmW3
2 days agoNW8NW11NW11NW10NW9NW12N10N10
G16
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6NW9NW9NW7W3CalmNW6NW8NW6NW6NW5NW5

Tide / Current Tables for Dover, Cocheco River, Piscataqua River, New Hampshire
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Dover
Click for Map
Thu -- 03:22 AM EDT     1.36 feet Low Tide
Thu -- 04:04 AM EDT     Moonrise
Thu -- 06:40 AM EDT     Sunrise
Thu -- 09:44 AM EDT     6.65 feet High Tide
Thu -- 02:14 PM EDT     Moonset
Thu -- 04:04 PM EDT     0.78 feet Low Tide
Thu -- 06:59 PM EDT     Sunset
Thu -- 10:26 PM EDT     6.26 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.331.91.41.52.13.24.65.86.56.66.25.13.62.21.20.811.93.24.65.76.26.2

Tide / Current Tables for Salmon Falls River entrance, Piscataqua River, New Hampshire
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Salmon Falls River entrance
Click for Map
Thu -- 03:35 AM EDT     1.35 feet Low Tide
Thu -- 04:04 AM EDT     Moonrise
Thu -- 06:40 AM EDT     Sunrise
Thu -- 09:35 AM EDT     6.47 feet High Tide
Thu -- 02:14 PM EDT     Moonset
Thu -- 04:18 PM EDT     0.82 feet Low Tide
Thu -- 06:59 PM EDT     Sunset
Thu -- 10:17 PM EDT     6.07 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.2321.41.41.934.45.76.46.45.94.93.62.21.30.811.83.14.55.665.9

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 (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.