Tuesday, June19, 2018 L-36.com


Marine Weather and Tides
Hatfield, MA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 5:11AMSunset 8:31PM Tuesday June 19, 2018 10:09 AM EDT (14:09 UTC) Moonrise 11:53AMMoonset 12:34AM Illumination 36% 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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ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 932 Am Edt Tue Jun 19 2018
Today..NW winds 5 to 10 kt. Seas 1 ft or less.
Tonight..N winds 5 to 10 kt. Seas 1 ft or less.
Wed..E winds around 5 kt, becoming S in the afternoon. Seas 1 ft or less.
Wed night..SW winds 5 to 10 kt. Seas 1 ft or less. Chance of showers.
Thu..E winds 5 to 10 kt. Seas 1 ft or less. Chance of showers in the morning.
Thu night..E winds 5 to 10 kt. Seas 1 ft or less.
Fri..E winds 5 to 10 kt, becoming se in the afternoon. Seas 1 ft or less.
Fri night..SE winds 5 to 10 kt. Seas 1 ft or less.
Sat..SE winds 5 to 10 kt. Seas 1 ft or less.
Sat night..S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers.
ANZ300 932 Am Edt Tue Jun 19 2018
Synopsis for the long island waters and new york harbor.. Weak high pressure builds in through tonight, followed by a cold front crossing the area Wednesday and Wednesday night as an area of low pressure passes to our south. High pressure then builds to the northeast through Thursday night, then gradually retreats to the northeast on Friday. A warm front passes on Saturday.

7 Day Forecast for Marine Location Near Hatfield, MA
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location: 42.39, -72.6     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 191133
afdbox
area forecast discussion
national weather service boston norton ma
733 am edt Tue jun 19 2018

Synopsis
Seasonable, dry, comfortable conditions with lower humidity today.

Low pressure passes off the south coast Wednesday, with a chance
of showers along the coast. High pressure from canada brings dry
weather Thursday and Friday. A cold front them brings a chance of
showers over the weekend, followed by dry weather early next week.

Near term until 6 pm this evening
730 am update...

a surface cold front reached the south coast within the past
hour. This front will move offshore over the next hour, taking
the last of the showers with it. Minor tweaks to bring the
forecast back in line with observed trends.

Previous discussion...

clearing out and improving immediately behind the cold front. High
pressure building in from the W round which accompanying n, breezy
flow allows for steep boundary layer lapse rates up to h85, enough
to mix down faster momentum from the lingering pressure gradient
associated with the low lifting NE against the building high, as
well as drier air. Prevailing dewpoints with a mix of available
guidance along with model sounding mix-down dewpoints. More
seasonable, drier weather in store, highs upper 70s to low 80s,
some mid 80 readings not out of the question with dewpoints
around the upper 40s to low 50s. Comfortable to put it simply.

Short term 6 pm this evening through 6 pm Wednesday
Tonight...

radiational cooling. High pressure in control. Light winds, mostly
clear conditions, leaning with coolest of MOS guidance. Talking
lows around the upper 40s to low 50s. No need for the ac, open
your windows.

Wednesday...

mainly a dry, seasonable day under the continued weight of high
pressure. Shifting to the e, return S flow late, however light
enough to allow e-coastal sea-breezes. Meanwhile, weak, fast-moving
disturbance emerging out of the oh river valley. Isentropic-ascent
ahead of a re-enforcing cold front out of canada, looking at
increasing clouds towards Wednesday evening initially, any skirting
rain to hold off later. Again, dry forecast.

Long term Wednesday night through Monday
Mid level flow pattern remains fairly stable through the end of
this work week, then should undergo more significant changes
this weekend into early next week. These changes will be
predicated upon the timing of some shortwave energy to phase
with a more persistent mid level trough over southeast canada.

Decent amount of spread in the ensembles, as well as among the
operational guidance. Forecast confidence is high through
Friday, trending to moderate for this weekend and early next
week.

Low pressure should pass by far enough to our south Wednesday
night into Thursday where only a chance of showers along the
south coast. High pressure arrives later Thursday and should
linger through Friday. Will keep a mention for a chance of
showers this weekend, but will not try to narrow the window of
these showers much. This will depend upon the timing of
shortwave energy crossing the county. More changes to this
timing are very possible, if not likely. Drier weather should
develop for early next week.

Otherwise, temperatures are expected to be near to slightly
above normal, depending upon how much sunshine we get. Humidity
start out fairly comfortable, then should increase into this
weekend.

Aviation 12z Tuesday through Saturday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Wednesday ... Moderate confidence.

Today...

vfr. N winds, gusty up around 20 kts at times.

Tonight..

Vfr. However conditions just right within sheltered valleys, may
see some spotty ifr-lifr conditions with fg. Higher confidence
in mid to upper ct river valley.

Wednesday...

vfr. Overall light winds becoming S sw. Allowance for e-coastal
sea-breezes to develop around 15z. Increasing mid-upper level
cigs late.

Kbos terminal...

holdVFR throughout. NW flow through the day, gusts up to 20 kt
early.

Kbdl terminal...

maintainVFR however not ruling out MVFR when observing upstream
trends presently over NW ma. An opportunity during the morning
push before clearing out. Wind shift at the terminal around 940z.

Outlook Wednesday night through Saturday ... Moderate confidence.

Wednesday night:VFR. Breezy. Slight chance shra.

Thursday through Friday night:VFR.

Saturday:VFR. Chance shra.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Wednesday ... High confidence.

Cold front pushing across the E waters this early morning, into
the S waters roughly around 8 am. SW flow in advance with gusts
upwards of 25 kts will keep wave heights 4-5 feet on the outer
waters. Winds shifting N with passage, remaining brisk with
gusts up to 20 kts, however high pressure building in from the
w, should allow for seas to diminish through afternoon and
subsequent conclusion of small craft advisories. Overnight and
into Wednesday, high pressure in control yielding light winds,
good boating weather. E onshore sea-breeze flow Wednesday.

Outlook Wednesday night through Saturday ... Moderate confidence.

Wednesday night: winds less than 25 kt. Chance of rain showers.

Thursday through Friday night: winds less than 25 kt.

Saturday: winds less than 25 kt. Chance of rain showers.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... Small craft advisory until 2 pm edt this afternoon for
anz254>256.

Synopsis... Belk sipprell
near term... Belk sipprell
short term... Sipprell
long term... Belk
aviation... Belk sipprell
marine... Belk sipprell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANMN6 - Hudson River Reserve, NY 74 mi99 min 71°F 1009 hPa64°F
FOXR1 - 8454000 - Providence, RI 75 mi57 min NNE 12 G 21 76°F 67°F1006.8 hPa
NLNC3 - 8461490 - New London, CT 76 mi51 min N 8.9 G 13 78°F 67°F1007 hPa

Wind History for Providence, RI
(wind in knots)    EDIT      (on/off)   Help
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SW9
G15
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G15
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G19
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G24
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G12
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G6
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G11
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G17
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N11
G14
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N6
G16
N8
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G15
NE6
G12
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G10
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G13
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G7
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N1
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SE1
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chicopee Falls / Westover Air Force Base, MA13 mi73 minNNE 11 G 1510.00 miMostly Cloudy74°F58°F58%1008.9 hPa
Westfield, Barnes Municipal Airport, MA17 mi76 minNE 610.00 miMostly Cloudy74°F63°F69%1008.4 hPa
Orange Municipal Airport, MA21 mi77 minNW 810.00 miFair72°F63°F73%1009 hPa

Wind History from CEF (wind in knots)
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Last 24hr------------S15
G22
S18
G22
N10
G18
S11S7S9S7S7SE6S4W8CalmCalmN5N9N11N11
G15
NE8
1 day agoCalm34CalmNW7SW4S9S5SW5S10S9S8S5----------------------
2 days agoCalmNW8NW10
G15
N11NW9NW7NW5NW5NW4CalmCalmNE3CalmNE3CalmCalmNE3CalmCalmCalmCalmCalmNW3Calm

Tide / Current Tables for Hartford, Connecticut River, Connecticut
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Hartford
Click for MapNote: Tidal information only applies during low river stages.

Tue -- 12:33 AM EDT     Moonset
Tue -- 03:31 AM EDT     0.18 feet Low Tide
Tue -- 05:15 AM EDT     Sunrise
Tue -- 07:58 AM EDT     2.28 feet High Tide
Tue -- 11:54 AM EDT     Moonrise
Tue -- 04:06 PM EDT     -0.06 feet Low Tide
Tue -- 08:28 PM EDT     Sunset
Tue -- 08:39 PM EDT     2.19 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.10.80.40.20.30.81.62.12.32.21.91.61.30.90.50.1-0.10.20.91.62.12.221.8

Tide / Current Tables for South Hartford, Connecticut River, Connecticut
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South Hartford
Click for MapNote: Tidal information only applies during low river stages.

Tue -- 12:33 AM EDT     Moonset
Tue -- 03:33 AM EDT     0.14 feet Low Tide
Tue -- 05:15 AM EDT     Sunrise
Tue -- 07:52 AM EDT     2.28 feet High Tide
Tue -- 11:54 AM EDT     Moonrise
Tue -- 04:08 PM EDT     -0.05 feet Low Tide
Tue -- 08:28 PM EDT     Sunset
Tue -- 08:33 PM EDT     2.19 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.10.80.40.20.20.81.62.12.32.21.91.61.30.90.50.1-00.211.72.12.221.8

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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Wind Forecast for Boston, MA (10,2,3,4)
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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.