Tuesday, November13, 2018 L-36.com


Marine Weather and Tides
Manchester, NH

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:35AMSunset 4:25PM Tuesday November 13, 2018 11:27 PM EST (04:27 UTC) Moonrise 12:46PMMoonset 10:26PM Illumination 35% Phase: Waxing Crescent; Moon at 6 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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ANZ230 Boston Harbor- 1007 Pm Est Tue Nov 13 2018
.gale warning in effect through Wednesday afternoon...
Overnight..W winds 15 to 20 kt, becoming nw 20 to 25 kt. Gusts up to 30 kt. Waves around 2 ft.
Wed..NW winds 20 to 25 kt with gusts up to 35 kt. Waves around 2 ft.
Wed night..NW winds 15 to 20 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Waves around 2 ft.
Thu..N winds 5 to 10 kt, becoming E in the afternoon. Waves 1 foot or less.
Thu night..E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt after midnight. Waves 1 foot or less, then around 3 ft after midnight. Rain. Snow in the evening.
Fri..NE winds around 15 kt, becoming N in the afternoon. Gusts up to 25 kt. Waves around 4 ft. Rain.
Fri night..W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft, except 4 to 5 ft at the outer harbor entrance.
Sat..W winds around 10 kt. Waves around 2 ft.
Sat night..W winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less.
Sun..W winds 5 to 10 kt. Waves 1 foot or less.
Sun night..W winds 5 to 10 kt. Waves 1 foot or less. A chance of showers after midnight. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
ANZ200 1007 Pm Est Tue Nov 13 2018
Synopsis for massachusetts and rhode island coastal waters.. Low pressure will continue to rapidly move to the northeast along the northern new england coast overnight. High pressure builds over the waters through Wednesday night, then drifts to the north Thursday. Another storm system approaches from the south impacting the waters late Thursday night into Friday. High pressure returns for the weekend. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the current hazards link above the map on the left.


7 Day Forecast for Marine Location Near Manchester, NH
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location: 42.99, -71.38     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 140253
afdbox
area forecast discussion
national weather service boston norton ma
953 pm est Tue nov 13 2018

Synopsis
Low pressure moves off through the maritimes as a broad
northwest surface flow brings colder air to new england. High
pressure builds over our region Wednesday and remains into
Thursday. The high drifts north during Thursday as the next low
pressure system approaches from the south late in the day. A
wintry mix will be possible with this storm Thursday night into
Friday. A weak system may bring scattered snow showers Sunday
night into Monday.

Near term until 6 am Wednesday morning
Northern stream trough moves across canada tonight and
eventually turns the upper flow more northwest. The northwest
flow will bring colder air across southern new england
overnight. This cold air advection should maintain low level
mixing, bringing gusts of 20 kts to the surface over ct and
bring gusts to 30 kt over northern border areas of
massachusetts, especially northeast mass.

Satellite images show a broad area of mid and high clouds moving
over the region for part of the night. Drier air brough south in
the developing northwest flow will thin the clouds overnight,
with guidance suggesting clearing by morning.

Observed temps at 9 pm were 3-4f milder than forecast values. We
nudged hourly and overnight min temps up 1-2f in response to
this. Overall range of forecast continues to be mid 20s to
lower 30s. We are maintaining wind gusts at 20-30 kt 25-35 mph
through the night.

Short term 6 am Wednesday morning through Wednesday night
Some of the coldest air of the season will be moving into the
region Wednesday and Wednesday night as arctic air flows into
the region behind the upper trough. With the upper trough axis
to the northeast and with increasing subsidence the area is
expected to remain nearly cloud free Wednesday and Wednesday
night. Cold advection will continue Wednesday and will be
weakening after 15z. Thus mixing will become more limited. Winds
and gusts are expected to remain below advisory levels. Even if
mixed to the top of the layer winds will be briefly near
advisory levels Wednesday morning.

With the center of the high nearly overhead winds will decouple
and become light, allowing for good radiational cooling.

Long term Thursday through Tuesday
Highlights...

* low pressure late Thu into Fri with rain snow sleet possible
* another weak system may bring snow showers Sun night mon
details...

Thursday and Friday...

as the high crosses northern new england Thursday, winds shift
around to e-se during the day. Clouds will push in from s-n
during the day, and will steadily lower and thicken especially
across S coastal areas. With the souther periphery of the high
in place, will be tough to get the leading edge of moisture
working into the region until Thu night. Might see some some
light rain push into the S coast toward sunset. Cold air remains
in place, with temps only reaching the 30s, except the lower
40s along the S coast.

The h5 cutoff low slowly moves e-ne across the mid atlc states
thu night but, as the high to the NE slowly moving to the
maritimes, increasing easterly flow will help feed in moisture
which should allow precip to spread across the region. Big
question will be ptypes as the onset of the precip. Have a mixed
bag of precip moving in even along the coast to start, but
should change over to rain with a slow temp rise with the
onshore flow off the milder waters. Timing of the changeover,
and exact amounts of snow sleet are still up in the air. Temps
inland may fall back to the 20s Thu evening, especially across
the higher inland terrain, but should start to rise after
midnight as E winds increase. Temps should rise above freezing
across most areas during fri, but again questions whether the
cold air will scour out of the interior valleys and the higher
terrain. Something to monitor closely.

Strong low level jet moving toward S coastal areas, CAPE cod and
the islands after midnight Thu night through fri. Could see
e-se wind gusts up to 35-40 kt, highest across the islands
Friday morning, possibly to midday. May need wind headlines for
a time there.

Expect the surface low to cross close to or across CAPE cod or
s coastal mass around midday Friday, then should exit rather
quickly across the gulf of maine. However, precip may linger
through the day, though should start tapering off late fri
afternoon across western areas.

Friday night through Monday...

any leftover precip across central and eastern areas should end
fri evening. Otherwise, a nearly zonal fast flow aloft will
bring quickly improving conditions across the region. Lows fri
night will run close to seasonal normals, in the upper 20s and
30s, except 35-40 along the coast. Winds shift to w-nw with
gusts up to 25-30 kt across CAPE cod and the islands early, but
should diminish.

Will see somewhat milder temps as compared to the previous few
days on Saturday, but will still run around 5 degrees below
normal. Another short wave approaches from the w, but should be
mainly dry as it moves across the region late Sat or Sat night.

However, this should bring another shot of colder air across
the region by Sunday with highs only in the 30s well inland to
40-45 along the coastal plain.

Another short wave may work E Sun night into Mon as a mid level
trough starts to dig across the great lakes. With temps falling
back to the 20s to around 30 Sunday night, may see snow showers
move across with this weak, fast moving system. May see
leftover snow showers early mon, then conditions should improve,
though it will remain cold.

Aviation 03z Wednesday through Sunday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Wednesday night ...

overnight... High confidence.

Cloud bases have lifted toVFR all areas, and with drying at the
lower levels we expect conditions to remainVFR through the
night. Low level mixing will continue overnight, maintaining
northwest gusts of 20-30 kts, strongest over higher terrain and
near the coast.

Wednesday... High confidence.

Vfr. Gusty northwest winds. Gusts 25 to 35 kt, with some
occasional gusts to 40 kt possible.

Kbos terminal... High confidence in taf.

Kbdl terminal... High confidence in taf.

Outlook Thursday through Sunday ...

Wednesday night:VFR. Breezy.

Thursday: mainlyVFR, with local MVFR possible.

Thursday night: mainly MVFR, with local ifr possible. Windy
with gusts to 35 kt. Pl and or ra likely, chance sn.

Friday: mainly MVFR, with local ifr possible. Windy with gusts
to 35 kt. Ra likely, fzra likely.

Friday night: mainlyVFR, with local MVFR possible. Windy with
local gusts to 30 kt.

Saturday:VFR. Breezy.

Marine
Gale force gusts will continue across most of the forecast
waters through Wednesday, especially the outer waters by
Wednesday afternoon. Gale warnings continue through Wednesday
most waters. A small craft advisory continues for narragansett
bay.

Outlook Thursday through Sunday ...

Wednesday night: low risk for small craft advisory winds with
gusts up to 30 kt. Areas of rough seas.

Thursday: winds less than 25 kt. Seas locally approaching 5 ft.

Chance of rain.

Thursday night: low risk for gale force winds with gusts up to
40 kt. Areas of rough seas. Rain.

Friday: low risk for gale force winds with gusts up to 40 kt.

Rough seas up to 14 ft. Chance of rain.

Friday night: moderate risk for small craft advisory winds with
gusts up to 30 kt. Rough seas up to 14 ft. Slight chance of
rain showers.

Saturday: low risk for small craft advisory winds with gusts up
to 25 kt. Local rough seas.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... Gale warning until 5 pm est Wednesday for anz232>234-256.

Gale warning from 1 am to 3 pm est Wednesday for anz230.

Gale warning until 7 pm est Wednesday for anz231-250-251-254-
255.

Small craft advisory until 5 pm est Wednesday for anz236.

Gale warning until 3 pm est Wednesday for anz235-237.

Synopsis... Wtb
near term... Wtb kjc
short term...

long term...

aviation... Wtb kjc
marine... Wtb


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGXN3 - Great Bay Reserve, NH 30 mi102 min W 7 41°F 35°F
IOSN3 - Isle of Shoals, NH 40 mi87 min W 18 G 21 42°F 1010.1 hPa (+2.8)34°F
BHBM3 - 8443970 - Boston, MA 47 mi39 min 43°F 1013.5 hPa
WELM1 - 8419317 - Wells, ME 49 mi39 min WNW 8.9 G 19 40°F 47°F1011.4 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Manchester Airport, NH4 mi34 minW 14 G 2610.00 miMostly Cloudy39°F19°F46%1015.2 hPa
Concord Municipal Airport, NH16 mi36 minWNW 13 G 2310.00 miOvercast35°F28°F76%1013.8 hPa
Nashua - Boire Field Airport, NH16 mi31 minWNW 21 G 2610.00 miA Few Clouds and Breezy39°F21°F50%1015 hPa
Lawrence Municipal Airport, MA23 mi33 minWNW 25 G 3510.00 miOvercast and Windy43°F25°F49%1013.7 hPa

Wind History from MHT (wind in knots)
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Last 24hrCalmCalmN3N3NW4N6NW7NW4NW4NW5N7N5N10N11NW11
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1 day agoSW5CalmCalmCalmCalmS3CalmCalmCalmCalmS4S5S8SW9SW5SW5CalmCalmE3S3NW3CalmCalmCalm
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Tide / Current Tables for Squamscott River RR. Bridge, New Hampshire
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Squamscott River RR. Bridge
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Tue -- 05:04 AM EST     6.29 feet High Tide
Tue -- 06:33 AM EST     Sunrise
Tue -- 11:18 AM EST     1.24 feet Low Tide
Tue -- 11:44 AM EST     Moonrise
Tue -- 04:21 PM EST     Sunset
Tue -- 05:07 PM EST     6.79 feet High Tide
Tue -- 09:24 PM EST     Moonset
Tue -- 11:57 PM EST     0.61 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.61.73.24.85.96.365.342.71.71.31.42.33.75.26.36.86.65.84.531.70.9

Tide / Current Tables for Newburyport, Merrimack River, Massachusetts
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Newburyport
Click for Map
Tue -- 03:11 AM EST     7.11 feet High Tide
Tue -- 06:32 AM EST     Sunrise
Tue -- 10:02 AM EST     1.48 feet Low Tide
Tue -- 11:43 AM EST     Moonrise
Tue -- 03:20 PM EST     7.77 feet High Tide
Tue -- 04:22 PM EST     Sunset
Tue -- 09:24 PM EST     Moonset
Tue -- 10:38 PM EST     0.72 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.84.96.57.16.96.15.13.92.71.91.51.93.25.26.97.77.66.85.64.32.91.70.90.8

Weather Map and Satellite Images
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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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Wind Forecast for Boston, MA (23,6,7,8)
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Ground Weather Radar Station Boston, MA
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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.