Tuesday, October17, 2017 L-36.com


Marine Weather and Tides
Wethersfield, CT

Version 3.4
What's New / NOTES
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.
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 7:04AMSunset 6:06PM Tuesday October 17, 2017 4:25 PM EDT (20:25 UTC) Moonrise 4:37AMMoonset 5:24PM Illumination 7% Phase: Waning Crescent; Moon at 27 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- 336 Pm Edt Tue Oct 17 2017
Tonight..SW winds 5 to 10 kt, becoming W 10 to 15 kt with gusts up to 20 kt late this evening and overnight. Seas around 2 ft.
Wed..W winds 10 to 15 kt, becoming sw 5 to 10 kt in the afternoon. Seas around 2 ft in the morning, then 1 to 2 ft in the afternoon.
Wed night..SW winds 5 to 10 kt. Seas around 2 ft.
Thu..SW winds 5 to 10 kt. Seas around 2 ft.
Thu night..SW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Fri..NW winds around 10 kt. Seas 1 ft or less.
Fri night..N winds 5 to 10 kt. Seas 1 ft or less.
Sat..N winds around 5 kt, becoming sw in the afternoon. Seas 1 ft or less.
Sat night..SW winds around 5 kt. Seas 1 ft or less.
Sun..S winds 5 to 10 kt. Seas 1 ft or less.
Sun night..S winds 5 to 10 kt. Seas 1 ft or less.
ANZ300 336 Pm Edt Tue Oct 17 2017
Synopsis for the long island waters and new york harbor.. High pressure settles just south of the coastal waters tonight into Wednesday and will remain in control through the weekend.

7 Day Forecast for Marine Location Near Wethersfield, CT
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location: 41.71, -72.65     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 171900
afdbox
area forecast discussion
national weather service taunton ma
300 pm edt Tue oct 17 2017

Synopsis
High pressure will maintain dry weather and warmer than normal
temperatures through the weekend.

Near term through tonight
High pres south of new eng tonight with light SW flow
developing. Still decent radiational cooling with clear skies
and dry airmass will allow temps to drop to mid 30s in the
coldest spots with patchy frost. No frost headlines as growing
season has ended in those areas with the best chance of frost.

Some patchy frost possible outside of this area but likely not
widespread enough for headlines. Patchy late night valley fog
possible.

Short term Wednesday through Wednesday night
Wednesday...

with high pres to the south, W SW flow will bring milder
airmass into sne. Airmass remains very dry through column so
plenty of sunshine will push afternoon high temps into the
upper 60s to lower 70s.

Wednesday night...

another clear night with light winds, but airmass is moderating
so not as cool with low temps mostly in the 40s.

Long term Thursday through Tuesday
Highlights...

* above average temps and dry conditions lasting into the weekend
* next shot for precip appears to be around Tuesday
pattern overview confidence...

12z guidance is in good agreement for the long term. Upper level
shortwave will move through the flow on Thursday. Behind this wave,
anomalous ridging will develop across the east coast. Heights and
temperatures will rise to 2-3 std above normal. This strong ridge
will last into early next week before a pattern change appears to
take hold of the area. This switch will be associated with the
digging trough across the eastern half of the CONUS by the Tuesday
timeframe.

Details...

temperature forecast...

overall trend in the forecast is for above average temperatures
through the period. Thursday's breezy southwest flow combined with
850 mb temps near 10-12c will result in highs in the low to mid 70s.

Cool front will sweep through the region Thursday night leading to a
cooler day on Friday. Anomalous ridge will begin to build for the
weekend into Monday resulting in high temps into the mid 70s.

Tuesday's temperature forecast is a bit trickier as it is dependent
on the timing of the front. Thus will trend towards a model
consensus until guidance gets a better handling on the fropa.

Precipitation forecast...

frontal system on Thursday will pass through, but lack of moisture
with the front will lead a dry passage. High pressure will take over
the area on Friday through Monday leading to dry weather. Next
chance or precipitation will be around the Tuesday timeframe when a
potent trough will dig into the ohio valley and towards the east
coast. Several waves of low pressure will ride along this through
resulting in a more unsettled weather pattern Tuesday and beyond.

Aviation 18z Tuesday 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 ... High confidence.

Vfr through Wed night. Localized late night river valley fog
possible. SW winds may gust to 20 kt over the outer cape
tonight.

Kbos terminal... High confidence in taf. Brief weak seabreeze
possible until 20z, but not included in taf.

Kbdl terminal... High confidence in taf.

Outlook Thursday through Sunday ...

high confidence.VFR.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Wednesday night ... High confidence.

Shortwave passing well to the north will bring a period of
increasing W SW winds tonight as high pres settles to the south.

A few gusts to 25 kt possible across mainly eastern ma waters
with building seas so will issue SCA for these waters. Gusts to
20 kt elsewhere. Winds diminish Wed through Wed night.

Outlook Thursday through Sunday ... High confidence.

High pressure prevails through the upcoming weekend with sub sca
conditions. The only exception is that SCA conditions may be
approached Thursday night ahead of a passing front as SW winds could
gust up to 25 kts.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... Small craft advisory from 10 pm this evening to 11 am edt
Wednesday for anz250-254.

Small craft advisory from 10 pm this evening to 7 am edt
Wednesday for anz231-251.

Synopsis... Kjc dunten
near term... Kjc
short term... Kjc
long term... Dunten
aviation... Kjc dunten
marine... Kjc dunten


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWHC3 - 8465705 - New Haven, CT 33 mi38 min SW 11 G 12 54°F 67°F1024.6 hPa
NLNC3 - 8461490 - New London, CT 38 mi38 min SSW 8 G 11 56°F 64°F1024.2 hPa
44039 - Central Long Island Sound 40 mi71 min SW 5.8 G 7.8 53°F 1 ft
LDLC3 - New London Ledge CT - Ledge Light Weather 41 mi26 min SW 11 G 14 55°F 1023.7 hPa (-1.1)36°F
BRHC3 - 8467150 - Bridgeport, CT 47 mi44 min SSW 8 G 12 53°F 67°F1024.1 hPa

Wind History for New Haven, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hartford, Hartford-Brainard Airport, CT1 mi33 minSE 410.00 miFair58°F30°F35%1023.7 hPa
Windsor Locks, Bradley International Airport, CT16 mi35 minSSE 710.00 miFair58°F28°F32%1023.6 hPa
Meriden, Meriden Markham Municipal Airport, CT17 mi33 minS 310.00 miFair58°F28°F32%1024 hPa
Chester, Chester Airport, CT24 mi51 minVar 410.00 miFair59°F26°F29%1024.4 hPa

Wind History from HFD (wind in knots)
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Last 24hrNW8NW9NW9NW7NW8NW11NW7N6N85N6N5CalmN5N3NE3E3N7NW83CalmN54SE4
1 day agoS14
G23
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2 days agoS5S3CalmCalmCalmS3S6S4S4CalmCalmS3CalmCalmS4S3S3S5S7S8S8
G16
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S11
G19
S11
G18

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

Tue -- 12:15 AM EDT     2.15 feet High Tide
Tue -- 04:37 AM EDT     Moonrise
Tue -- 07:05 AM EDT     Sunrise
Tue -- 07:49 AM EDT     0.02 feet Low Tide
Tue -- 12:34 PM EDT     2.27 feet High Tide
Tue -- 05:24 PM EDT     Moonset
Tue -- 06:05 PM EDT     Sunset
Tue -- 08:18 PM EDT     0.03 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.12.11.91.61.30.90.50.100.41.11.72.22.32.11.81.51.10.70.300.20.71.4

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

Tue -- 04:37 AM EDT     Moonrise
Tue -- 06:52 AM EDT     0.03 feet Low Tide
Tue -- 07:05 AM EDT     Sunrise
Tue -- 11:58 AM EDT     2.62 feet High Tide
Tue -- 05:24 PM EDT     Moonset
Tue -- 06:05 PM EDT     Sunset
Tue -- 07:21 PM EDT     0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.52.321.61.10.60.200.41.11.82.42.62.52.21.81.40.90.40.10.20.71.42

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 Boston, MA (16,3,4,5)
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Ground Weather Radar Station Upton, NY
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weather_mapweather_map weather_map

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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.