Thursday, October28, 2021
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Marine Weather and Tides
Windsor Locks, CT

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:17AMSunset 5:51PM Thursday October 28, 2021 4:41 PM EDT (20:41 UTC) Moonrise 11:47PMMoonset 2:26PM Illumination 45% Phase: Third Quarter Moon; Moon at 23 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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ANZ331 Long Island Sound East Of New Haven Ct/port Jefferson Ny To The Mouth Of The Connecticut River- 405 Pm Edt Thu Oct 28 2021
.small craft advisory in effect from Friday afternoon through late Friday night...
Tonight..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 1 ft or less, then 1 to 2 ft after midnight.
Fri..NE winds 10 to 15 kt, becoming E 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 1 to 2 ft, building to 2 to 3 ft in the afternoon.
Fri night..E winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft. Chance of rain in the evening, then rain after midnight. Vsby 1 to 3 nm.
Sat..E winds 15 to 20 kt with gusts up to 30 kt, becoming se 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft, subsiding to 1 to 2 ft in the afternoon. Rain. Vsby 1 to 3 nm.
Sat night..S winds 5 to 10 kt, becoming sw after midnight. Seas 1 ft or less. Showers likely, mainly in the evening with vsby 1 to 3 nm.
Sun..SW winds 5 to 10 kt. Seas 1 ft or less.
Sun night..W winds 10 to 15 kt. Seas 1 ft or less.
Mon..NW winds 10 to 15 kt. Seas 1 ft or less.
Mon night..NW winds 5 to 10 kt. Seas 1 ft or less.
Tue..W winds 5 to 10 kt. Seas 1 ft or less.
Tue night..SW winds 5 to 10 kt. Seas 1 ft or less.
ANZ300 405 Pm Edt Thu Oct 28 2021
Synopsis for the long island waters and new york harbor.. High pressure centered north of the area will be in control tonight. Low pressure approaches on Friday and impacts the region Friday night through Saturday. Low pressure exits the area on Sunday, followed by high pressure building in through midweek.


7 Day Forecast for Marine Location Near Windsor Locks, CT
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location: 41.92, -72.63     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 281955 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 355 PM EDT Thu Oct 28 2021

SYNOPSIS. Dry and cool weather prevails into Friday. A period of locally heavy rain, perhaps a rumble of thunder and gusty coastal winds is likely late Friday night into Saturday. Isolated showers are possible Sunday before drier weather returns Sunday night into the start of the upcoming week.

NEAR TERM /UNTIL 6 AM FRIDAY MORNING/. Surface ridging extending south from high pres in Canada will bring dry conditions with light winds. The extent of cloud cover tonight is tricky and will impact low temp forecast. Clouds have persisted across central/E MA and RI this afternoon. Expect temporary partial clearing working in from N this evening across northern MA while clouds persist in SE MA. However, guidance is suggesting clouds fill back in and spread west across NE and central MA overnight, with mainly clear skies across the CT valley. As a result, coldest temps tonight will be in the west with mildest temps across coastal MA and Cape/Islands.

We leaned toward blend of available guidance for min temps which will range from lower 30s across western MA to low 40s coastal MA, but mid/upper 40s Cape/Islands. Temps could be colder than forecast in the east if there is less cloud cover.

SHORT TERM /6 AM FRIDAY MORNING THROUGH FRIDAY NIGHT/. Friday .

Upper level ridging builds across New Eng as surface high moves to the Maritimes. Continued NE flow will result in abundant low level moisture across eastern half SNE. Soundings show this moisture trapped below an inversion so clouds will dominate across eastern MA/RI with more sunshine back to the west. Highs expected to range from upper 40s higher terrain to low/mid 50s elsewhere.

Friday night .

Closed low lifts NE from TN valley with southerly flow aloft advecting higher PWATs into SNE. A modest SE low level jet will develop ahead of the upper low which will enhance isentropic lift after midnight bringing widespread rain into SNE. Winds will increase along the coast late Fri night, but the low level jet is much weaker than the Tue night storm and a stronger low level inversion will prevent higher winds from mixing down to the ground. Easterly wind gusts to 25-35 mph are expected along the south coast late Fri night.

LONG TERM /SATURDAY THROUGH THURSDAY/. Highlights .

* Washout anticipated Saturday with gusty winds possible along the eastern MA coast.

* A few lingering showers on Sunday, but otherwise quiet weather heading into the upcoming week with temps trending downward.

* Next shot for rain showers comes Tuesday into Wednesday.

Saturday .

Main focus of the extended is on this period. Broad cutoff low situated over the Mid Atlantic/Eastern Great Lakes early on Saturday. This will lift into the Eastern Great Lakes/St. Lawrence River Valley area by late Saturday. At the surface a well wrapped up low will be situated over the OH Valley/Eastern Great Lakes and will lift into Upstate NY. A weak coastal low may develop nearby/over southern New England on Saturday before lifting into northern New England Saturday night.

Most concerned with the gusty wind potential with this upcoming system especially given some communities will be still undergoing restoration efforts. Fortunately, the low level jet is oriented in an unfavorable SE direction and transitory. This tends to limit the amount of stronger winds mixing down to the surface due to a steepening inversion aloft. Nonetheless, do have a roughly 30-60 kt 925 hPa low level jet in place. Thinking that this could bring a period of 30-40 mph gusts as NAM/GFS Bufkit soundings show winds aloft getting down to roughly 1-2 kft AGL for coastal areas. With this in mind bumped up wind speeds and gusts to the NBM 90th percentile.

The other possible concern with this system is rainfall, which could be heavy at times especially if a secondary coastal low happens to develop. Will have a PWAT plume of roughly 1-1.75 inches advecting into eastern portions of southern New England. This is AOA the 90th percentile per SPC sounding climatology for CHH for this time of year. Expect the heaviest rain around the leading edge of the low level jet as it lifts through and again could see heavier precip if a secondary low develops. Leaned toward a weak secondary low developing, so bumped up QPF toward the latest NERFC and WPC guidance. Overall generally anticipating storm total QPF of 1 to 2 inches. Could have some isolated higher amounts if there are any thunderstorms. The risk of thunder is greatest along the eastern coastal plain where there is a few hundred J/kg of MUCAPE available. Any convection would be elevated, so there is no risk of severe storms and especially given how strong an inversion is in place. Timeline wise the heaviest rainfall would be throughout the day Saturday before things taper off at night and become more showery.

Expecting it to be a bit milder as southeasterly flow advects in warmer air. Should see 925 hPa temperatures increasing to 8-15 degrees Celsius. High temperatures will be in the 50s across much of the interior and the 60s along the coastal plain. Given we will still be in warm southerly flow am anticipating it to stay mild overnight. Low temperatures range from the upper 40s across the higher terrain to the 50s elsewhere heading into Sunday.

Sunday .

Cutoff low lifts through New England and into Quebec province by Sunday night. A ridge builds into the region behind the departing system. Broad sfc low rotates into northern New England and Quebec province on Sunday, while high pressure begins nudging in.

Think that there will be isolated to scattered rain shower activity as the broad low lifts through. Best shot for showers will be across the interior where they are closest to the best forcing. Not expecting a washout, but there will be showers around for much of the day. Do not think it will be completely dry until the evening as high pressure nudges in.

Should have filtered sunshine across the region and given flow will still be SW/W will have another mild day especially in comparison to the past few days. Expect 925 hPa temperatures in the 8-10 degree Celsius range. NBM temps looked reasonable, so have stuck with the readings generally in the 60s.

Will be cooling down quickly Sunday night into Monday as high pressure builds in. This relaxes the pressure gradient a bit, which may allow for decent radiational cooling given the clearing skies. Kept with the NBM for now, but may need to bring temps a bit in future updates especially if winds are lighter. Lows in the 40s for most, but in the low 50s along the immediate coastline.

Monday through Wednesday .

Weak mid level ridge moving through on Monday, but will remain in broad cyclonic flow across the eastern half of the country. Will have a weak shortwave lifting through from the Great Lakes Tuesday into Wednesday. High pressure keeps the weather dry for Monday and part of Tuesday. A cold front/broad low slides through later on Tuesday into Wednesday bringing chances of rain showers.

Temperatures cool throughout this period with W/NW cold air advection. High temps in the 50s and 60s on Monday, but cool into the 40s and 50s on Tuesday/Wednesday. Will see more widespread 30s and 40s across the region for low temperatures during this window.

AVIATION /20Z THURSDAY THROUGH TUESDAY/. Low - less than 30 percent. Medium - 30 to 60 percent. High - greater than 60 percent.

Through 00z . MVFR cigs will persist in eastern New Eng with VFR in the CT valley. N gusts to 25 kt over outer Cape/Islands.

Tonight . Moderate confidence. Lingering MVFR cigs over Cape/Islands. Otherwise VFR in the evening, then MVFR cigs redeveloping in eastern MA overnight. Light N wind.

Friday . Moderate High confidence. MVFR cigs central and eastern New Eng. VFR CT valley trending to MVFR in the afternoon. NE wind 10-15 kt.

Friday night . Moderate confidence. MVFR trending to IFR overnight as rain overspreads the region from west to east. E/NE wind 10-15 kt with gusts 25-30 kt developing after midnight along the immediate south coast.

KBOS Terminal . Moderate confidence in TAF.

KBDL Terminal . Moderate confidence in TAF.

Outlook /Saturday through Tuesday/ .

Saturday: Mainly MVFR, with areas IFR possible. Windy with gusts up to 35 kt. RA.

Saturday Night: Mainly MVFR, with local IFR possible. Windy with gusts up to 35 kt. Chance RA.

Sunday: Mainly VFR, with areas MVFR possible. Slight chance RA.

Sunday Night: VFR.

Monday: VFR. Breezy.

Monday Night: VFR.

Tuesday: Mainly VFR, with local MVFR possible. Slight chance RA.

MARINE. Forecaster Confidence Levels.

Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent.

Winds continue to diminish and wind speeds over eastern waters will drop below 20 kt overnight. Small craft advisories will remain in place over open waters for hazardous seas. NE gusts to 20 kt expected Fri, then increasing E gusts to 30-35 kt will develop over south coastal waters after midnight Fri night as a low level jet develops. A gale watch will be issued for late Fri night into Sat as this low level jet sweeps across the waters.

Outlook /Saturday through Tuesday/ .

Saturday: Strong winds with gusts up to 35 kt. Rough seas up to 11 ft. Rain, isolated thunderstorms.

Saturday Night: Low risk for Small Craft Advisory winds with gusts up to 30 kt. Rough seas up to 11 ft. Chance of rain, isolated thunderstorms.

Sunday: Winds less than 25 kt. Rough seas up to 9 ft. Slight chance of rain.

Sunday Night: Winds less than 25 kt. Areas of rough seas.

Monday through Monday Night: Winds less than 25 kt. Seas up to 5 ft.

Tuesday: Winds less than 25 kt. Areas of seas approaching 5 ft. Slight chance of rain.

TIDES/COASTAL FLOODING. Coastal flood advisory is in effect for Nantucket for the late afternoon high tide. A surge around 2 ft will result in areas of minor coastal flooding in Nantucket Harbor.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . Coastal Flood Advisory until 8 PM EDT this evening for MAZ024. RI . None. MARINE . Gale Watch from Saturday morning through Saturday evening for ANZ231-232-250-251-254. Small Craft Advisory until 8 PM EDT Friday for ANZ231-232-250- 251-254>256. Small Craft Advisory until 2 AM EDT Friday for ANZ235-237. Gale Watch from late Friday night through Saturday evening for ANZ255-256.

SYNOPSIS . KJC/BL NEAR TERM . KJC SHORT TERM . KJC LONG TERM . BL AVIATION . KJC/BL MARINE . KJC/BL TIDES/COASTAL FLOODING .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWHC3 - 8465705 - New Haven, CT 46 mi72 min NE 8G9.9 56°F 63°F1013.9 hPa
NLNC3 - 8461490 - New London, CT 48 mi72 min 52°F 59°F1014.8 hPa
LDLC3 - New London Ledge CT - Ledge Light Weather 52 mi62 min NE 11G14 52°F 1013.3 hPa

Wind History for New Haven, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Windsor Locks, Bradley International Airport, CT3 mi51 minENE 710.00 miA Few Clouds55°F40°F57%1014.2 hPa
Hartford, Hartford-Brainard Airport, CT13 mi49 minENE 710.00 miPartly Cloudy55°F40°F57%1014 hPa
Westfield, Barnes Municipal Airport, MA17 mi49 minE 510.00 miFair55°F39°F55%1014.4 hPa
Chicopee Falls / Westover Air Force Base, MA21 mi46 minENE 310.00 miA Few Clouds55°F38°F53%1014.9 hPa

Link to 5 minute data for KBDL

Wind History from BDL (wind in knots)
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Last 24hrN9NE9N50N5N7N6N10N6N7N9N10NE6N6N6N8N8NE13N10N12N9E6NE8NE7
1 day agoN14N14N14
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2 days agoN10N8N10N9N9N10N12N10N10N10N12N13
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N9N10N15N14NE13N14NE15
G20
NE18NE13NE13N12N13

Tide / Current Tables for Hartford, Connecticut
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Hartford
Click for Map
Thu -- 04:47 AM EDT     0.48 feet Low Tide
Thu -- 07:18 AM EDT     Sunrise
Thu -- 09:12 AM EDT     1.60 feet High Tide
Thu -- 02:26 PM EDT     Moonset
Thu -- 04:06 PM EDT     Last Quarter
Thu -- 04:59 PM EDT     0.81 feet Low Tide
Thu -- 05:49 PM EDT     Sunset
Thu -- 09:11 PM EDT     1.90 feet High Tide
Thu -- 11:47 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Rocky Hill, Connecticut
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Rocky Hill
Click for Map
Thu -- 03:39 AM EDT     0.51 feet Low Tide
Thu -- 07:18 AM EDT     Sunrise
Thu -- 08:26 AM EDT     1.69 feet High Tide
Thu -- 02:25 PM EDT     Moonset
Thu -- 03:51 PM EDT     0.86 feet Low Tide
Thu -- 04:06 PM EDT     Last Quarter
Thu -- 05:49 PM EDT     Sunset
Thu -- 08:25 PM EDT     2.01 feet High Tide
Thu -- 11:47 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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