Marine Weather and Tide Forecast for Hartford, CT
 | Sunrise 5:23 AM Sunset 8:11 PM Moonrise 2:16 AM Moonset 1:42 PM |
ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 600 Am Edt Tue Mar 30 2021
Today - E winds around 5 kt, becoming S late this morning and afternoon. Seas 1 ft or less.
Tonight - S winds around 10 kt. Seas 1 to 2 ft.
Wed - S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of showers in the morning, then chance of rain in the afternoon.
Wed night - S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Rain. Vsby 1 to 3 nm.
Thu - W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Showers.
Thu night - NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft.
Fri - NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Fri night - NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Sat - W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Sat night - SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
ANZ300 904 Pm Edt Tue May 20 2025
Synopsis for the long island and connecticut coastal waters - As high pressure noses down from the north, a back door cold front will move through from the east tonight. An expansive low pressure system will then approach from the west on Wednesday, with a secondary low developing off the southern mid atlantic coast Wednesday night. This second low will then pass south and east of long island into new england Thursday into Thursday night. The low will remain over the northeast Friday and Saturday before slowly moving toward the canadian maritimes on Sunday.
7 Day Forecast for Marine Location Near Hartford, CT
NEW! Add second zone forecast
| Hartford Click for Map Wed -- 02:15 AM EDT Moonrise Wed -- 05:25 AM EDT Sunrise Wed -- 05:51 AM EDT 0.51 feet Low Tide Wed -- 10:05 AM EDT 1.94 feet High Tide Wed -- 01:42 PM EDT Moonset Wed -- 06:13 PM EDT 0.31 feet Low Tide Wed -- 08:09 PM EDT Sunset Wed -- 10:48 PM EDT 2.11 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Hartford, Connecticut, Tide feet
| 12 am |
| 1.6 |
| 1 am |
| 1.4 |
| 2 am |
| 1.2 |
| 3 am |
| 1 |
| 4 am |
| 0.7 |
| 5 am |
| 0.6 |
| 6 am |
| 0.5 |
| 7 am |
| 0.8 |
| 8 am |
| 1.4 |
| 9 am |
| 1.8 |
| 10 am |
| 1.9 |
| 11 am |
| 1.9 |
| 12 pm |
| 1.7 |
| 1 pm |
| 1.4 |
| 2 pm |
| 1.1 |
| 3 pm |
| 0.9 |
| 4 pm |
| 0.6 |
| 5 pm |
| 0.4 |
| 6 pm |
| 0.3 |
| 7 pm |
| 0.5 |
| 8 pm |
| 1 |
| 9 pm |
| 1.6 |
| 10 pm |
| 2 |
| 11 pm |
| 2.1 |
| Rocky Hill Click for Map Wed -- 02:15 AM EDT Moonrise Wed -- 04:43 AM EDT 0.55 feet Low Tide Wed -- 05:25 AM EDT Sunrise Wed -- 09:19 AM EDT 2.05 feet High Tide Wed -- 01:41 PM EDT Moonset Wed -- 05:05 PM EDT 0.33 feet Low Tide Wed -- 08:09 PM EDT Sunset Wed -- 10:02 PM EDT 2.22 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Rocky Hill, Connecticut, Tide feet
| 12 am |
| 1.5 |
| 1 am |
| 1.2 |
| 2 am |
| 1 |
| 3 am |
| 0.8 |
| 4 am |
| 0.6 |
| 5 am |
| 0.6 |
| 6 am |
| 0.9 |
| 7 am |
| 1.4 |
| 8 am |
| 1.8 |
| 9 am |
| 2 |
| 10 am |
| 2 |
| 11 am |
| 1.8 |
| 12 pm |
| 1.5 |
| 1 pm |
| 1.2 |
| 2 pm |
| 0.9 |
| 3 pm |
| 0.7 |
| 4 pm |
| 0.4 |
| 5 pm |
| 0.3 |
| 6 pm |
| 0.5 |
| 7 pm |
| 1.1 |
| 8 pm |
| 1.7 |
| 9 pm |
| 2.1 |
| 10 pm |
| 2.2 |
| 11 pm |
| 2.1 |
FXUS61 KBOX 202328 AFDBOX
Area Forecast Discussion National Weather Service Boston/Norton MA 728 PM EDT Tue May 20 2025
SYNOPSIS
Cloudy with unseasonably cool high temperatures for the remainder of the work week that will run 10 to 20 degrees below normal. A late season Nor'eater will bring a cold windswept heavy rain to the region late Wednesday into early Friday. The brunt of this storm appears to be Thursday, when wind gusts of 40-50+ mph will be possible along the coast with pockets of minor coastal flooding also possible. The soaking rain will likely come to an end Friday morning, but a few showers will remain possible Friday afternoon into Saturday. Temperatures will slowly moderate, but still remain below normal into this weekend.
NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/
Key Messages...
* Cloudy & cool tonight with dry weather other than a few spotty sprinkles/light showers with lows in the 40s to near 50
Persistence forecast into tonight with ridging overhead and cool, moist low level onshore flow will result in cloudy skies.
Mainly dry weather will prevail...but a few sprinkles/light showers possible at times. Greatest risk for these will be along the east slopes of both the Worcester Hills/Berks with upslope flow. Overnight low temps should be in the 40s to near 50
SHORT TERM /6 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/
Key Messages...
* Temps a bit cooler than Tuesday, with clouds and patchy drizzle.
* Rain moves in late Wednesday night.
More of the same weather expected on Wednesday, except even a bit colder and with even less breaks of sun. This is due to continued low level moisture/clouds moving from northeast to southwest off the ocean as well as mid/upper level moisture/clouds moving in from southwest to northeast ahead of the approaching frontal system. Cold advection continues on northeast flow in the low levels, with 925 mb temps dropping from 5-6C Tuesday to 1-2C Wednesday. This will lead to high temperatures in the low to mid 50s for most; locations in the CT Valley will benefit from some downslope flow and may reach 60.
A cold, windswept rain arrives Wednesday night ahead of a late season nor'easter. The parent low over the Ohio Valley Wednesday will generate a secondary coastal low along the frontal boundary Wednesday night moving off the mid Atlantic coast into Thursday. The plume of moisture ahead of the system together with a 25-35kt LLJ will generate a precip shield slowly expanding into most of SNE by 8am. As the pressure gradient tightens we'll also see winds at the surface become increasingly gusty toward sunrise, gusting 20-30 mph but the bulk of the rain and wind arrive later Thursday.
LONG TERM /THURSDAY THROUGH TUESDAY/
Key Messages...
* Late season Nor'easter Thu into early Fri brings 1-2" of rain with localized 3" amounts along with poor drainage street flooding
* ENE wind gusts of 40-50+ mph possible along the coast Thu with perhaps some pockets of minor coastal flooding during high tide
* A few showers will remain possible Fri into Sat but these will be hit or miss...followed may mainly dry weather Sun and Mon
* Unseasonably chilly temps Thu gradually moderate through the Holiday Weekend, but we probably do not break 70 until Memorial Day
Details...
The main forecast concerns continues to be the late season Nor'easter which will bring windswept heavy rain to the region Thu into early Fri. The other concerns revolve around the potential for strong winds along the coast along with pockets of minor coastal flooding possible. We will break it down more below.
1) Heavy Rain 1-2" with localized 3" amounts late Wed into early Fri
The latest 12z guidance continues to be in good agreement in intensifying low pressure system that will pass inside the Benchmark Thu into early Fri. This will combined with a modest high pressure system in the Maritimes to result in an anomalously strong easterly LLJ. The 850 mb LLJ is 3+ standard deviations outside climatology for this time of year
In addition
a closed 700 mb low will lift across southern New England resulting in a mid level deformation zone
Putting all these ingredients together
the stage is set for a widespread heavy rain event. We are thinking 1-2" of rain are in store for much of the region...but some localized 3" amounts are possible especially near any coastal front or mid level deformation axis. This may result in some poor drainage street flooding especially in some of those typically prone urban locations.
However...not expecting any serious type flash flooding.
In addition...high temperatures on Thursday will be running 20 to 25 degrees below normal for this time of year. Near record low high temperatures in the 45 to 55 degree range are expected. It will feel even chillier with the wind.
2) Period of easterly wind gusts of 40-50+ mph along the coast
The other issue will be a period of easterly wind gusts of 40-50+ mph along the coast that will be associated with the anomalously strong easterly LLJ. The 850 mb jet is expected to increase to between 50 and 60 knots that will be pointed toward the coast.
Thinking that we will need some wind headlines across the Cape and Islands and perhaps all the way up the eastern MA coast. Given this is a 4th period event will not issue with this package...but we probably will need to issue in the next 24 hours.
3) Potential for minor coastal flooding with the Thu PM high tide
The anomalously strong easterly low level flow will help to build seas to 10-15+ feet offshore. Astronomical high tides are not that high with Boston at 10.0 MLLW Thu evening
However
appears that a 1.5 to 2.5 foot storm surge off the coast with rather high seas off the coast will bring the potential for pockets of minor coastal flooding during the Thu evening high tide cycle along the eastern MA coast/Nantucket. A coastal flood advisory may eventually be needed for this region in later forecasts.
Friday afternoon through the Holiday Weekend...
After the steady rain departs Fri morning...a few showers will remain possible at times Fri afternoon into Sat but a washout is not expected. A lot of these scattered showers will be diurnally driven with anomalous shortwave energy/cold pool aloft overhead. This anomalous upper level trough begins to shift to the northeast Sun and Memorial Day...which should bring mainly dry weather.
Temperatures will be slow to moderate through the Holiday Weekend, but they will gradually as the trough begins to push east of the region. Highs in the 50s to near 60 in spots Fri and probably into the 60s in most locations by Sat and especially Sun. Appears we finally may break 70 in spots by Memorial Day.
AVIATION /00Z WEDNESDAY THROUGH SUNDAY/
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
00z TAF Update...
Tonight and Wednesday: High confidence.
Widespread MVFR cloud bases with little change. NE winds around 5-10 kt tonight, which then increase to around 10-15 kt with gusts to 20+ kt.
Wednesday Night: Moderate confidence.
MVFR-IFR with increasing rain chances as heavier precipitation moves in from the southwest. E/ENE winds 10-20 kts, increasing toward 12Z.
BOS TAF...High Confidence in TAF.
BDL TAF...High Confidence in TAF.
Outlook /Thursday through Sunday/...
Thursday: Mainly IFR, with local MVFR possible. Strong winds with gusts up to 40 kt. RA.
Thursday Night: Mainly IFR, with areas MVFR possible. Windy with gusts up to 35 kt. RA likely.
Friday: Mainly MVFR, with local IFR possible. Windy with local gusts up to 30 kt. Chance SHRA.
Friday Night: Mainly MVFR, with local IFR possible. Chance SHRA.
Saturday: MVFR. Breezy. Chance SHRA.
Saturday Night: Mainly VFR, with local MVFR possible. Slight chance SHRA.
Sunday: VFR. Breezy.
MARINE
Forecaster Confidence Levels:
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Today Through Wednesday night: High confidence.
NE winds 5-10 kt this afternoon and tonight, increasing to 10-15 kt with gusts 20-25 kt Wed. Seas may still be near 5 ft in southeast waters today through Wed night.
Outlook /Thursday through Sunday/...
Thursday: Moderate risk for gale force winds with gusts up to 40 kt. Rough seas up to 11 ft. Rain. Visibility 1 to 3 nm.
Thursday Night: Low risk for gale force winds with gusts up to 40 kt. Rough seas up to 13 ft. Chance of rain.
Friday: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Rough seas up to 11 ft. Chance of rain showers.
Friday Night: Winds less than 25 kt. Seas up to 5 ft. Chance of rain showers.
Saturday: Winds less than 25 kt. Seas up to 5 ft. Slight chance of rain showers.
Saturday Night: Winds less than 25 kt. Areas of seas approaching 5 ft.
Sunday: Winds less than 25 kt. Seas locally approaching 5 ft.
BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...Gale Watch from Thursday morning through late Thursday night for ANZ230-236.
Gale Watch from late Wednesday night through late Thursday night for ANZ231>235-237-254>256.
Small Craft Advisory until 8 AM EDT Wednesday for ANZ250-254- 255.
Gale Watch from late Wednesday night through late Thursday night for ANZ250-251.
Area Forecast Discussion National Weather Service Boston/Norton MA 728 PM EDT Tue May 20 2025
SYNOPSIS
Cloudy with unseasonably cool high temperatures for the remainder of the work week that will run 10 to 20 degrees below normal. A late season Nor'eater will bring a cold windswept heavy rain to the region late Wednesday into early Friday. The brunt of this storm appears to be Thursday, when wind gusts of 40-50+ mph will be possible along the coast with pockets of minor coastal flooding also possible. The soaking rain will likely come to an end Friday morning, but a few showers will remain possible Friday afternoon into Saturday. Temperatures will slowly moderate, but still remain below normal into this weekend.
NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/
Key Messages...
* Cloudy & cool tonight with dry weather other than a few spotty sprinkles/light showers with lows in the 40s to near 50
Persistence forecast into tonight with ridging overhead and cool, moist low level onshore flow will result in cloudy skies.
Mainly dry weather will prevail...but a few sprinkles/light showers possible at times. Greatest risk for these will be along the east slopes of both the Worcester Hills/Berks with upslope flow. Overnight low temps should be in the 40s to near 50
SHORT TERM /6 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/
Key Messages...
* Temps a bit cooler than Tuesday, with clouds and patchy drizzle.
* Rain moves in late Wednesday night.
More of the same weather expected on Wednesday, except even a bit colder and with even less breaks of sun. This is due to continued low level moisture/clouds moving from northeast to southwest off the ocean as well as mid/upper level moisture/clouds moving in from southwest to northeast ahead of the approaching frontal system. Cold advection continues on northeast flow in the low levels, with 925 mb temps dropping from 5-6C Tuesday to 1-2C Wednesday. This will lead to high temperatures in the low to mid 50s for most; locations in the CT Valley will benefit from some downslope flow and may reach 60.
A cold, windswept rain arrives Wednesday night ahead of a late season nor'easter. The parent low over the Ohio Valley Wednesday will generate a secondary coastal low along the frontal boundary Wednesday night moving off the mid Atlantic coast into Thursday. The plume of moisture ahead of the system together with a 25-35kt LLJ will generate a precip shield slowly expanding into most of SNE by 8am. As the pressure gradient tightens we'll also see winds at the surface become increasingly gusty toward sunrise, gusting 20-30 mph but the bulk of the rain and wind arrive later Thursday.
LONG TERM /THURSDAY THROUGH TUESDAY/
Key Messages...
* Late season Nor'easter Thu into early Fri brings 1-2" of rain with localized 3" amounts along with poor drainage street flooding
* ENE wind gusts of 40-50+ mph possible along the coast Thu with perhaps some pockets of minor coastal flooding during high tide
* A few showers will remain possible Fri into Sat but these will be hit or miss...followed may mainly dry weather Sun and Mon
* Unseasonably chilly temps Thu gradually moderate through the Holiday Weekend, but we probably do not break 70 until Memorial Day
Details...
The main forecast concerns continues to be the late season Nor'easter which will bring windswept heavy rain to the region Thu into early Fri. The other concerns revolve around the potential for strong winds along the coast along with pockets of minor coastal flooding possible. We will break it down more below.
1) Heavy Rain 1-2" with localized 3" amounts late Wed into early Fri
The latest 12z guidance continues to be in good agreement in intensifying low pressure system that will pass inside the Benchmark Thu into early Fri. This will combined with a modest high pressure system in the Maritimes to result in an anomalously strong easterly LLJ. The 850 mb LLJ is 3+ standard deviations outside climatology for this time of year
In addition
a closed 700 mb low will lift across southern New England resulting in a mid level deformation zone
Putting all these ingredients together
the stage is set for a widespread heavy rain event. We are thinking 1-2" of rain are in store for much of the region...but some localized 3" amounts are possible especially near any coastal front or mid level deformation axis. This may result in some poor drainage street flooding especially in some of those typically prone urban locations.
However...not expecting any serious type flash flooding.
In addition...high temperatures on Thursday will be running 20 to 25 degrees below normal for this time of year. Near record low high temperatures in the 45 to 55 degree range are expected. It will feel even chillier with the wind.
2) Period of easterly wind gusts of 40-50+ mph along the coast
The other issue will be a period of easterly wind gusts of 40-50+ mph along the coast that will be associated with the anomalously strong easterly LLJ. The 850 mb jet is expected to increase to between 50 and 60 knots that will be pointed toward the coast.
Thinking that we will need some wind headlines across the Cape and Islands and perhaps all the way up the eastern MA coast. Given this is a 4th period event will not issue with this package...but we probably will need to issue in the next 24 hours.
3) Potential for minor coastal flooding with the Thu PM high tide
The anomalously strong easterly low level flow will help to build seas to 10-15+ feet offshore. Astronomical high tides are not that high with Boston at 10.0 MLLW Thu evening
However
appears that a 1.5 to 2.5 foot storm surge off the coast with rather high seas off the coast will bring the potential for pockets of minor coastal flooding during the Thu evening high tide cycle along the eastern MA coast/Nantucket. A coastal flood advisory may eventually be needed for this region in later forecasts.
Friday afternoon through the Holiday Weekend...
After the steady rain departs Fri morning...a few showers will remain possible at times Fri afternoon into Sat but a washout is not expected. A lot of these scattered showers will be diurnally driven with anomalous shortwave energy/cold pool aloft overhead. This anomalous upper level trough begins to shift to the northeast Sun and Memorial Day...which should bring mainly dry weather.
Temperatures will be slow to moderate through the Holiday Weekend, but they will gradually as the trough begins to push east of the region. Highs in the 50s to near 60 in spots Fri and probably into the 60s in most locations by Sat and especially Sun. Appears we finally may break 70 in spots by Memorial Day.
AVIATION /00Z WEDNESDAY THROUGH SUNDAY/
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
00z TAF Update...
Tonight and Wednesday: High confidence.
Widespread MVFR cloud bases with little change. NE winds around 5-10 kt tonight, which then increase to around 10-15 kt with gusts to 20+ kt.
Wednesday Night: Moderate confidence.
MVFR-IFR with increasing rain chances as heavier precipitation moves in from the southwest. E/ENE winds 10-20 kts, increasing toward 12Z.
BOS TAF...High Confidence in TAF.
BDL TAF...High Confidence in TAF.
Outlook /Thursday through Sunday/...
Thursday: Mainly IFR, with local MVFR possible. Strong winds with gusts up to 40 kt. RA.
Thursday Night: Mainly IFR, with areas MVFR possible. Windy with gusts up to 35 kt. RA likely.
Friday: Mainly MVFR, with local IFR possible. Windy with local gusts up to 30 kt. Chance SHRA.
Friday Night: Mainly MVFR, with local IFR possible. Chance SHRA.
Saturday: MVFR. Breezy. Chance SHRA.
Saturday Night: Mainly VFR, with local MVFR possible. Slight chance SHRA.
Sunday: VFR. Breezy.
MARINE
Forecaster Confidence Levels:
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Today Through Wednesday night: High confidence.
NE winds 5-10 kt this afternoon and tonight, increasing to 10-15 kt with gusts 20-25 kt Wed. Seas may still be near 5 ft in southeast waters today through Wed night.
Outlook /Thursday through Sunday/...
Thursday: Moderate risk for gale force winds with gusts up to 40 kt. Rough seas up to 11 ft. Rain. Visibility 1 to 3 nm.
Thursday Night: Low risk for gale force winds with gusts up to 40 kt. Rough seas up to 13 ft. Chance of rain.
Friday: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Rough seas up to 11 ft. Chance of rain showers.
Friday Night: Winds less than 25 kt. Seas up to 5 ft. Chance of rain showers.
Saturday: Winds less than 25 kt. Seas up to 5 ft. Slight chance of rain showers.
Saturday Night: Winds less than 25 kt. Areas of seas approaching 5 ft.
Sunday: Winds less than 25 kt. Seas locally approaching 5 ft.
BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...Gale Watch from Thursday morning through late Thursday night for ANZ230-236.
Gale Watch from late Wednesday night through late Thursday night for ANZ231>235-237-254>256.
Small Craft Advisory until 8 AM EDT Wednesday for ANZ250-254- 255.
Gale Watch from late Wednesday night through late Thursday night for ANZ250-251.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| NWHC3 - 8465705 - New Haven, CT | 36 mi | 64 min | ESE 5.1G | 53°F | 57°F | 30.05 | ||
| NLHC3 | 41 mi | 64 min | 51°F | 52°F | 30.06 | |||
| BRHC3 - 8467150 - Bridgeport, CT | 49 mi | 64 min | ESE 4.1G | 53°F | 29.99 |
Wind History for New Haven, CT
toggle option: (graph/table)
Link to 1 hour of 5 minute data for KHFD
Terminal Aerodrome Forecast (TAF) for KHFD
Wind History Graph: HFD
(wind in knots)
GEOS Local Image of Northeast
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