Monday, June1, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Hatfield, MA

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 5:13AMSunset 8:22PM Monday June 1, 2020 9:03 PM EDT (01:03 UTC) Moonrise 3:28PMMoonset 2:56AM Illumination 83% Phase: Waxing Gibbous; Moon at 11 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
    EDIT      (on/off)   Help
ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 546 Pm Edt Mon Jun 1 2020
Tonight..W winds 5 to 10 kt. Seas 1 ft or less. Chance of sprinkles this evening.
Tue..SW winds 5 to 10 kt. Seas 1 ft or less.
Tue night..SW winds 5 to 10 kt. Seas 1 ft or less. Chance of showers.
Wed..SW winds 5 to 10 kt. Seas 1 ft or less. Chance of showers in the afternoon.
Wed night..W winds 5 to 10 kt. Seas 1 ft or less. Showers likely in the evening.
Thu..W winds 5 to 10 kt. Seas 1 ft or less.
Thu night..SW winds 5 to 10 kt. Seas 1 ft or less. Chance of showers after midnight.
Fri..S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers in the morning.
Fri night..SW winds 5 to 10 kt. Seas 1 ft or less. Chance of showers.
Sat..W winds 5 to 10 kt. Seas 1 ft or less. Chance of showers.
Sat night..W winds 5 to 10 kt, becoming nw after midnight. Seas 1 ft or less.
ANZ300 546 Pm Edt Mon Jun 1 2020
Synopsis for the long island waters and new york harbor.. High pressure settles along the southeast coast through Tuesday morning. A warm front approaches late Tuesday and moves across Tuesday night. A surface trough lingers into Wednesday. A cold front will move through late Wednesday night into early Thursday. Another cold front will move through Saturday.


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


Area Discussion for - Boston, MA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KBOX 012322 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 722 PM EDT Mon Jun 1 2020

SYNOPSIS. Any diurnal showers come to an end before midnight. Should be dry overnight and not as cool as last night, as high pressure builds in. Another shot for scattered showers Tuesday afternoon. Warm front lifts into southern New England late on Tuesday into early Wednesday bringing rain chances. A cold front will bring a chance of showers and possibly a thunderstorm on later on Wednesday. Dry and warm on Thursday. Another cold front will bring a chance of showers and thunderstorms Friday into Saturday. Dry, less humid, and cooler weather follows for Sunday and next Monday.

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/. 715 PM update .

Forecast is on track. Scattered sprinkles/showers were moving across the region this evening, with local wind gusts to 20-25 mph with the showers. These should dissipate over the next few hours. No changes to the forecast at this time.

Previous discussion .

Highlights .

* Any diurnal showers ending before midnight. Remains dry with warmer temperatures in comparison to this morning.

Shortwave trough digs offshore tonight. A mid level ridge will build from the central Great Lakes into western New England by tomorrow morning. At the surface high pressure will nudge into southern New England from offshore of the Carolinas.

Expect any diurnal shower activity to taper off as the sun sets. Best shot of showers this evening is across western MA and CT as things wind down. High pressure will also act to clear skies a bit across eastern portions of southern New England, however think clouds will linger across the west.

Milder temperatures expected tonight especially when compared to the this morning. This is a combination of cloudiness expected and northwesterly warm air advection. Brought temperatures toward the 50th percentile of guidance, which yields lows ranging from the low 40s along the NH/VT/MA border to the low 50s along the coastal plain.

SHORT TERM /6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT/. 430 PM update .

Highlights .

* Increasing cloud cover as a warm front lifts into the eastern Great Lakes on Tuesday. Could see a few showers across southern New England during the afternoon.

* Chance of rain showers across southern New England Tuesday night into Wednesday morning as the warm front lifts in.

Tuesday .

The mid level ridge slides offshore on Tuesday, while a shortwave digs from northern Ontario into the Ontario/Quebec border. A warm front will lift from the central Great Lakes into the Mid Atlantic and eastern Great Lakes.

Ahead of the front will see cloud cover increase across the region. Do have some weak vorticity advection aloft. This in combination with the increasing cloud cover, near adiabatic low level lapse rates and some MUCAPE. Could see some scattered shower activity across the interior. Not expecting much QPF across southern New England with this shower activity - few hundredths at the most. Hard to pin point the exact location of these showers.

Temperatures will be on an upward trend as warmer air advects in aloft. Will have winds shift to the west and southwest. This will advect 925 hPa temperatures of 10-15 degrees Celsius into the region. Highs range from the mid 60s to the mid 70s.

Tuesday Night .

Shortwave trough will dig from the Ontario/Quebec through southern New England. A warm front will lift into southern New England. This will bring cloudy skies and chances of rain showers

Lots of differences amongst guidance on how widespread shower activity will be across southern New England. Have leaned toward the ECMWF/GEM guidance versus the drier NAM/GFS. Expecting surface winds to become more southwesterly, which will advect more moisture into the region. The GFS/NAM solutions keep winds more westerly, which keeps the lower levels drier and inhibits shower activity. Any showers that do move through will bring relatively light QPF. Only anticipating rain amounts of a few hundredths to a tenth of an inch.

Warmer air will continue advecting into the region with westerly to southwesterly flow aloft. Expect 925 hPa temperatures of 12 to 17 degrees Celsius to move in. This will result in low temperatures in the 50s across southern New England.

LONG TERM /WEDNESDAY THROUGH MONDAY/. 430 PM update .

Highlights .

* Chances of showers/thunderstorms Wed and again Fri/Sat. * Dry and warm Thu. * Dry, cooler, and much less humid Sunday and Mon.

Overview . Fast upper level flow from the NW to W through midweek, then a deeper trough approaches Friday through Saturday night, exiting Sunday. At the surface, will have a cold front moving through on Wednesday and another one Friday into Saturday. Each will bring a chance of showers/thunderstorms, but the latter may be more widespread. Much drier air follows behind the upper trough for next Sunday and Monday.

Wed/Wed night . A cold front will be moving through the region. The best instability is to our west and south, however. Strong WNW flow aloft . with 55-60 kt at 500 mb on GFS and closer to 70 kt on NAM. Supercell parameter is rather high in southeast NY and models anticipate any storms moving ESE from there. Have highest chances of showers and possible thunderstorms therefore over northern CT, RI, and southeastern MA and the southern coastal waters for Wed. evening. Highs Wed. will be in the lower 80s with dewpoints climbing to the lower to mid 60s ahead of the front.

Thursday . Looks like the pick of the week with dry, post-frontal airmass overspreading the region. Mainly sunny skies and highs in the lower 80s with dewpoints in the 50s, making it more tolerable.

Thursday night to Friday night . An upper level trough deepens as it advances from the eastern Great Lakes. Showers and thunderstorms are possible over the southern waters and spreading into southern RI and southeast MA toward daybreak. There is a better chance of showers and thunderstorms across the entire forecast area Friday and Friday night, with the approach of the front. The front will slow down in eastern sections as the upper trough deepens. This could lead to locally heavy rainfall. Too early to know if this will materialize or where. Despite cloud cover, temperatures should manage to climb to the mid 80s with dewpoints climbing back to the lower to mid 60s on Friday.

Saturday . Some question as to how quickly the upper trough progresses east. The ECMWF briefly develops a closed upper low near NYC Saturday evening. Overall, expecting chances of showers or thunderstorms to mainly be in eastern areas, especially in the morning and early afternoon, then drying out. Highs near 80.

Sunday and Monday . In the wake of the upper trough and surface front, we should have drier, cooler, and pleasantly less humid weather. Highs mainly 70 to 75 both days with dewpoints in the 40s.

AVIATION /23Z MONDAY THROUGH SATURDAY/. Forecaster Confidence Levels .

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

2315Z update .

Thru 03Z . High confidence

VFR conditions expected, with BKN clouds between 5000 and 8000 ft. Widely scattered light rain showers will gradually dissipate. Winds could gust to 20-25 kt with the shower activity.

Later tonight . High confidence

VFR with most cloudiness in western MA and northern CT. Winds shifting to the W with speeds of 5 to 10 kts. Any gusty winds end as the mixed layer decouples.

Tuesday . High confidence

VFR conditions expected. Warm front approaches from the west, bringing increasing sky cover. Expect ceilings around 5 to 7 kft. A few showers are possible with no visibility restrictions anticipated.

Tuesday Night . Moderate confidence

Ceilings falling to MVFR limits with IFR possible late across the eastern slopes of the Berkshires. Chance of rain showers. No visibility restrictions anticipated at this point in time.

KBOS Terminal . High confidence in TAF.

KBDL Terminal . High confidence in TAF.

Outlook /Wednesday through Saturday/ .

Wednesday: Mainly VFR, with areas MVFR possible. Chance SHRA.

Wednesday Night: Mainly VFR, with local MVFR possible. Chance SHRA.

Thursday: VFR.

Thursday Night: Mainly VFR, with local MVFR possible. Chance SHRA.

Friday: MVFR/IFR conditions possible. Chance SHRA, slight chance TSRA.

Friday Night: MVFR/IFR conditions possible. Breezy. Chance SHRA, slight chance TSRA.

Saturday: Mainly VFR, with areas MVFR possible. Chance SHRA.

MARINE. 715 PM update .

High confidence in the forecast with southwest winds of 10-15 kts initially this evening shifting to the west and eventually the northwest late tonight. Will have gusts of 15-20 kts decreasing to 10-15 kts late. Seas 2 to 4 feet.

Northwest winds quickly shifting to the southwest at 5-10 kts on Tuesday. Winds shifting to the south during the afternoon at 10-15 kts with gusts of 15-20 kts. Waves remaining below 3 feet.

Outlook /Wednesday through Saturday/ .

Wednesday: Winds less than 25 kt. Seas locally approaching 5 ft. Chance of rain showers.

Wednesday Night: Winds less than 25 kt. Local rough seas. Chance of rain showers.

Thursday: Winds less than 25 kt. Local rough seas.

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

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

Friday Night: Winds less than 25 kt. Seas up to 5 ft. Rain showers likely, slight chance of thunderstorms.

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

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . None.

SYNOPSIS . BL/GAF NEAR TERM . BL/GAF SHORT TERM . BL LONG TERM . GAF AVIATION . BL/GAF MARINE . BL/GAF


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANMN6 - Hudson River Reserve, NY 74 mi94 min Calm 62°F 1018 hPa44°F
FOXR1 - 8454000 - Providence, RI 75 mi52 min NNW 9.9 G 13 62°F 54°F1018.6 hPa
NLNC3 - 8461490 - New London, CT 76 mi46 min NW 1.9 G 4.1 61°F 56°F1018.9 hPa

Wind History for Providence, RI
(wind in knots)    EDIT      (on/off)   Help
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last
24hr
N9
G14
N16
G22
NE11
G17
NE9
G16
NE11
G14
NE7
G10
W4
N4
G7
NW4
N5
NW7
G11
N11
G14
NE11
G16
N8
G12
N11
G14
N13
G20
N13
G21
N13
G17
N11
G21
N15
G19
NE10
G14
N13
G16
NW9
G13
N6
G15
1 day
ago
W3
SW7
W5
N13
G21
N11
G15
N10
G18
N8
G14
N9
G19
NW8
G12
NW7
G10
N12
G17
N12
G23
N15
G21
NE16
G23
N15
G20
NE15
G21
N16
G26
NE9
G16
NW12
G21
N11
G18
N15
G22
N12
G20
N10
G18
N10
G19
2 days
ago
SW10
G16
SW11
G17
S6
G9
SW10
G18
S11
G16
S7
G12
SW10
G14
SW7
G11
SW5
SW5
G9
SW4
G8
W3
G8
W6
G10
W6
G11
NW11
G14
W7
NW10
G14
W7
G14
NW11
G16
W9
G17
NW7
G13
NW8
G12
NW12
G16
NW5
G8

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chicopee Falls / Westover Air Force Base, MA13 mi68 minNNE 510.00 miOvercast59°F38°F47%1019.2 hPa
Westfield, Barnes Municipal Airport, MA17 mi71 minN 010.00 miA Few Clouds57°F41°F55%1019 hPa
Orange Municipal Airport, MA21 mi72 minNW 610.00 miLight Rain57°F37°F47%1019 hPa

Link to 5 minute data for KCEF

Wind History from CEF (wind in knots)
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last 24hrN8NE9CalmNW3CalmSE3CalmCalmE3CalmCalmCalmNW3CalmCalmNW6N3
G15
NW6NW10NW11
G16
NW10N13
G20
N7NE5
1 day agoW4NW9
G19
NW5
G15
NW10
G15
NW16
G22
NW12NW9NW8NW8NW12
G20
NW7NW13
G21
N12NW14
G19
N8N11
G19
N11
G15
N12
G22
NW14
G20
N15
G21
N10
G17
N9NW9--
2 days agoS13
G18
S12
G21
S14S11S8
G15
S9S11S8SW6SW5SW6NW15
G19
NW11NW15W12NW13
G23
SW4SW6SW6W11
G16
W11
G17
W10NW8W6

Tide / Current Tables for Hartford, Connecticut
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Hartford
Click for Map
Mon -- 02:56 AM EDT     Moonset
Mon -- 05:18 AM EDT     Sunrise
Mon -- 07:11 AM EDT     0.22 feet Low Tide
Mon -- 11:35 AM EDT     2.02 feet High Tide
Mon -- 03:28 PM EDT     Moonrise
Mon -- 07:24 PM EDT     0.15 feet Low Tide
Mon -- 08:19 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
2.221.71.310.70.40.20.411.6221.91.61.310.60.40.20.30.91.62.2

Tide / Current Tables for Rocky Hill, Connecticut
   EDIT      (on/off)   Help   One Week of Data
Rocky Hill
Click for Map
Mon -- 02:56 AM EDT     Moonset
Mon -- 05:18 AM EDT     Sunrise
Mon -- 06:03 AM EDT     0.23 feet Low Tide
Mon -- 10:49 AM EDT     2.13 feet High Tide
Mon -- 03:28 PM EDT     Moonrise
Mon -- 06:16 PM EDT     0.16 feet Low Tide
Mon -- 08:18 PM EDT     Sunset
Mon -- 11:20 PM EDT     2.56 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
2.11.81.41.10.70.40.20.51.11.622.121.71.410.70.40.20.30.91.62.22.5

Weather Map
       (on/off)   Help Weather Map
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 (21,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Boston, MA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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 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.