Wednesday, May27, 2020
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Marine Weather and Tides
Hartford, CT

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:19AMSunset 8:16PM Wednesday May 27, 2020 1:20 AM EDT (05:20 UTC) Moonrise 9:32AMMoonset 12:03AM Illumination 25% Phase: Waxing Crescent; Moon at 5 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- 1006 Pm Edt Tue May 26 2020
.dense fog advisory in effect until 11 am edt Wednesday...
Tonight..S winds around 5 kt. Seas around 2 ft. Areas of dense fog. Vsby less than 1 nm.
Wed..S winds around 5 kt. Seas 1 ft or less. Areas of dense fog in the morning. Vsby less than 1 nm in the morning.
Wed night..S winds around 5 kt. Seas 1 ft or less. Patchy fog. Vsby 1 to 3 nm.
Thu..S winds 5 to 10 kt. Seas 1 ft or less. Patchy fog in the morning. Chance of showers in the afternoon. Vsby 1 to 3 nm in the morning.
Thu night..S winds 10 to 15 kt. Seas around 2 ft. Chance of showers. Patchy fog after midnight with vsby 1 to 3 nm.
Fri..S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of showers and tstms in the morning. Patchy fog in the morning with vsby 1 to 3 nm.
Fri night..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of tstms in the evening. Chance of showers.
Sat..SW winds 5 to 10 kt. Seas around 2 ft. Chance of showers.
Sat night..W winds 5 to 10 kt, becoming nw after midnight. Seas around 2 ft. Chance of showers in the evening.
Sun..NW winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 ft or less.
Sun night..NW winds 5 to 10 kt. Seas 1 ft or less. Winds and seas higher in and near tstms.
ANZ300 1006 Pm Edt Tue May 26 2020
Synopsis for the long island waters and new york harbor.. Offshore high pressure will slowly drift east through the middle of the week. A cold frontal passage is expected Saturday. High pressure returns for the end of the weekend.


7 Day Forecast for Marine Location Near Hartford, CT
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location: 41.77, -72.67     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 270229 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 1029 PM EDT Tue May 26 2020

SYNOPSIS. High pressure will move offshore tonight and will provide summerlike warmth and mugginess away from the coast for the rest of the work week. We end the week with showers and an isolated chance for a thunderstorm or two on Friday as a cold front crosses the region. High pressure will bring drier and cooler weather for the second half of the weekend into early next week.

NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/.

1010 PM Update .

* Expanded Dense Fog Advisory to include southern half of RI and southern Bristol county in MA.

Previous forecast is largely on track. With a light southerly flow and a warm, moist air mass being advected over relatively cold ocean waters, the main concern tonight is how far north the fog bank is going to get. Based on the latest metar obs and nighttime microphysics satellite imagery, the fog bank is making its way up Narragansett Bay and is just south of Providence. So have decided to expand the Dense Fog Advisory to include Kent and Washington County in RI and the southern half of Bristol County in MA. May have to expand the Dense Fog Advisory further north but will monitor trends in the next few hours. Another area of interest is Eastern MA coast where the marine stratus is hugging or just off the coast. With a predominant southerly flow, it will be hard for the fog to get into Boston like last night but Cape Ann would be most likely to get into the action given its geography.

The other main change was to bring the dew points up to match the current obs.

PREVIOUS DISCUSSION .

7 PM Update: Forecast is on track.

* Dense Fog Develops on Cape Cod and the Islands Tonight

Satellite loop shows low clouds heading inland onto South Coast, Cape Cod, and Islands this evening. High-res guidance slowly advances this cloud deck inland tonight, mainly as far north as Hartford, Providence, and Plymouth though it could make it into Boston as well for a time.

Webcams indicate fog is still lurking offshore south of the islands, but expect it to become more widespread near South Coast this evening due to low temp/dewpoint spreads and light S/SW winds. Cape Cod and Islands are typically favored for dense fog in this pattern so we are continuing the Dense Fog Advisory for tonight. It's possible dense fog also makes it onto south coastal RI and MA but still not confident enough to expand the advisory just yet.

Lows in 50s and lower 60s look good.

SHORT TERM /6 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/. * Very Warm & A Bit Humid Away From The South Coast Wednesday

Wednesday .

The anomalous upper level ridge with height fields around 590 DM will remain in control of our weather. 850T are bit milder than today around +15C to +16C. This coupled with southwest flow should yield afternoon high temps in the upper 80s to near 90 away from cooling marine influence of the south coast. Unlike today, there will not be a sea breeze in Boston so they will get in on the summer- like warmth as well. It will be a bit muggy too with 60+ dewpoints, but southwest wind gusts of 20 to 25 mph during the afternoon which will help a bit. Dry weather will persist with the upper level ridge in control.

Wednesday night .

Model cross sections indicate low clouds developing from south to north Wednesday night. They will likely be more widespread, covering most if not all of the region by daybreak. We may even see some drizzle develop with some fog possible too especially near the south coast. Overnight lows will only drop into the lower to middle 60s in most locations with some 55 to 60 degree readings near the south coast.

LONG TERM /THURSDAY THROUGH TUESDAY/. Thursday .

Morning fog likely to start off across coastal Rhode Island through the south shore of Cape Cod. One of the biggest questions for Thursday will be the extent to the cloud over. Models show a decent swath of moisture between 925 and 850 mb . especially across western MA/CT. PWATS range between 1.5 and 2.0 inches across the Mid Atlantic and up into southern New York. With some weak forcing an isolated shower isn't out of the question. At 18z the 850mb temperatures climb to 14 degrees (C), indicating afternoon highs could reach the mid-80s. Those along the coast will have cooler afternoon highs in the upper 60s to low 70s. If clouds don't erode those temperatures will be difficult to produce, but, with a predominant southwesterly flow we should be capable of mixing them out.

Friday .

A cold front will spark scattered showers and possibly an isolated thunderstorm. PWATS range from 1.5 to 2.0 inches across the Mid Atlantic to Southern New England. Thunderstorms may develop NW of our area where better instability is present and could move into western Massachusetts during the mid-afternoon with locally heavy downpours.

Saturday .

Temperatures still remain rather warm on Saturday with 850 mb temperatures between 8 and 10 degrees Celsius. A few morning showers could linger depending on the speed the front moving offshore. The greatest chance of seeing a shower will be in eastern Massachusetts, the Cape, and Islands. Clouds clear from west to east late in the day as drier and cooler air moves in from Quebec.

Sunday/Monday .

An area of high pressure moves out of from the Great Lakes Region Sunday into Monday with an upper-level through moves across New England and eastern Quebec. The 500 mb temperatures above Southern New England are -12 degrees Celsius! That will result in cooler than normal temperatures in the middle and upper 60s.

AVIATION /02Z WEDNESDAY THROUGH SUNDAY/.

Forecaster Confidence Levels .

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

00z TAF Update . Moderate confidence.

CIGS steadily lower to IFR across much of CT, RI, and SE MA tonight as well as near Berkshires, but conditions remain VFR elsewhere. S/SW winds prevail as sea breezes subside.

IFR CIGS improve to VFR Wed morning as low clouds retreat offshore, with process being the slowest across the Cape and Islands. Otherwise, VFR conditions expected with SW wind gusts into the lower 20 knots during the afternoon across the southeast New England coast.

Low clouds return Wed night from south to north. Appears this time the lower clouds will overspread most if not all of the region. So expect mainly lower end MVFR to IFR conditions. LIFR conditions with fog may impact the south coast, Cape, and Islands.

KBOS Terminal . High confidence in TAF.

KBDL Terminal . High confidence in TAF.

Outlook /Thursday through Sunday/ .

Thursday: Mainly VFR, with local IFR possible. Slight chance SHRA.

Thursday Night: Mainly VFR, with areas IFR possible. Breezy. Chance SHRA, chance TSRA.

Friday through Friday Night: Mainly VFR, with local IFR possible. Breezy. Chance SHRA, chance TSRA.

Saturday: Mainly VFR, with local MVFR possible. Breezy. Chance SHRA, chance TSRA.

Saturday Night: Mainly VFR, with local MVFR possible. Slight chance SHRA.

Sunday: VFR. Breezy.

MARINE. Tonight through Wednesday night . High confidence. S to SW winds will continue through Wed night, but winds/seas should generally remain below SCA thresholds. Some choppy seas may develop Wednesday afternoon though with some lower 20 knot wind gusts near shore. The main issue will be for areas of fog that will be dense especially during the overnight to mid morning hours.

Outlook /Thursday through Sunday/ .

Thursday: Winds less than 25 kt. Slight chance of rain showers.

Thursday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Chance of rain showers.

Friday: Winds less than 25 kt. Seas up to 5 ft. Chance of rain showers, chance of thunderstorms.

Friday Night: Winds less than 25 kt. Areas of rough seas. Thunderstorms likely, chance of rain showers.

Saturday: Winds less than 25 kt. Local rough seas. Chance of rain showers, chance of thunderstorms.

Saturday Night: Winds less than 25 kt. Local rough seas. Slight chance of rain showers.

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

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . Dense Fog Advisory until 8 AM EDT Wednesday for MAZ020>024. RI . Dense Fog Advisory until 8 AM EDT Wednesday for RIZ003>008. MARINE . None.

SYNOPSIS . Frank/Gaucher NEAR TERM . Chai/JWD SHORT TERM . Frank LONG TERM . Gaucher AVIATION . Frank/Gaucher/JWD MARINE . Frank/Gaucher


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWHC3 - 8465705 - New Haven, CT 36 mi51 min SSW 6 G 7 60°F 59°F1023 hPa
NLNC3 - 8461490 - New London, CT 42 mi51 min W 1 G 1.9 60°F 53°F1023.2 hPa
BRHC3 - 8467150 - Bridgeport, CT 49 mi51 min SW 5.1 G 6 60°F 60°F1022.9 hPa

Wind History for New Haven, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hartford, Hartford-Brainard Airport, CT3 mi28 minSSE 410.00 miFair63°F59°F87%1022.9 hPa
Windsor Locks, Bradley International Airport, CT12 mi30 minS 510.00 miFair63°F60°F90%1022.5 hPa
Meriden, Meriden Markham Municipal Airport, CT20 mi28 minSSE 510.00 miOvercast61°F57°F90%1023 hPa

Link to 5 minute data for KHFD

Wind History from HFD (wind in knots)
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Last 24hrSW4CalmCalmSW3CalmCalmCalmSW3SE4S34SW6S4S6SE8S8S8S7S7S7S4S5S5S4
1 day agoNE4NE4N5N5N4N5N6N43N3CalmCalmCalm6S7S7S8S8S6S7S4S3S3S4
2 days agoN10N10
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N7N10N9N9N9N854N8NE33CalmSE4CalmS5S8S5S5SE3E3E3E3

Tide / Current Tables for Hartford, Connecticut
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Hartford
Click for Map
Wed -- 12:03 AM EDT     Moonset
Wed -- 02:03 AM EDT     0.57 feet Low Tide
Wed -- 05:20 AM EDT     Sunrise
Wed -- 06:22 AM EDT     2.32 feet High Tide
Wed -- 09:31 AM EDT     Moonrise
Wed -- 02:58 PM EDT     0.18 feet Low Tide
Wed -- 07:15 PM EDT     1.80 feet High Tide
Wed -- 08:15 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.60.60.81.422.32.32.11.81.410.70.50.30.20.51.11.61.81.81.61.41.1

Tide / Current Tables for Rocky Hill, Connecticut
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Rocky Hill
Click for Map
Wed -- 12:02 AM EDT     Moonset
Wed -- 12:55 AM EDT     0.61 feet Low Tide
Wed -- 05:21 AM EDT     Sunrise
Wed -- 05:36 AM EDT     2.44 feet High Tide
Wed -- 09:31 AM EDT     Moonrise
Wed -- 01:50 PM EDT     0.19 feet Low Tide
Wed -- 06:29 PM EDT     1.89 feet High Tide
Wed -- 08:14 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.60.81.422.42.42.31.91.51.10.80.50.30.20.51.11.61.91.91.71.51.21

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (1,6,7,8)
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Ground Weather Radar Station Upton, NY
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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 numerous 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.