|
Marine Weather and Tides
Version 3.4 |
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 6:10AM | Sunset 5:39PM | Friday March 5, 2021 2:24 PM EST (19:24 UTC) | Moonrise 1:18AM | Moonset 10:55AM | Illumination 54% | ![]() |
ANZ251 Massachusetts Bay And Ipswich Bay- 116 Pm Est Fri Mar 5 2021
.small craft advisory in effect through Saturday morning...
This afternoon..W winds around 15 kt with gusts up to 25 kt. Seas around 3 ft.
Tonight..NW winds 15 to 20 kt with gusts up to 25 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..NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Sun and Sun night..N winds 10 to 15 kt. Seas around 2 ft.
Mon through Tue night..W winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
.small craft advisory in effect through Saturday morning...
This afternoon..W winds around 15 kt with gusts up to 25 kt. Seas around 3 ft.
Tonight..NW winds 15 to 20 kt with gusts up to 25 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..NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Sun and Sun night..N winds 10 to 15 kt. Seas around 2 ft.
Mon through Tue night..W winds 10 to 15 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
ANZ200 116 Pm Est Fri Mar 5 2021
Synopsis for massachusetts and rhode island coastal waters.. Expect areas of light freezing spray on the waters today through Saturday. High pressure builds over the waters and maintains dry weather through the first half of next week. For additional information on possible hazardous weather for the week ahead, please visit www.weather.gov/boston/ehwo.
Synopsis for massachusetts and rhode island coastal waters.. Expect areas of light freezing spray on the waters today through Saturday. High pressure builds over the waters and maintains dry weather through the first half of next week. For additional information on possible hazardous weather for the week ahead, please visit www.weather.gov/boston/ehwo.
7 Day Forecast for Marine Location Near Salisbury, MA
Hourly EDIT Help
location: 42.81, -70.81 debug
Area Discussion for - Boston, MA
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFXUS61 KBOX 051818 AFDBOX
Area Forecast Discussion National Weather Service Boston/Norton MA 118 PM EST Fri Mar 5 2021
SYNOPSIS. Dry weather persists through the middle of next week. Colder than normal through the weekend. The pattern then moderates to warmer than normal conditions for the middle of next week.
NEAR TERM /UNTIL 6 PM THIS EVENING/.
120 PM UPDATE .
* Mostly sunny but cold and blustery this afternoon *
Previous forecast matching up well with current observations including Satellite imagery. Temps continue to slowly rise into the low and mid 30s across CT/RI and Eastern MA, mid to upper 20s inland. Temps likely rise a few more degs before falling as sunset approaches. Mid/high clouds lifting/exiting northeast MA, yielding mostly sunny conditions. Although the stronger March sunshine is being offset by the anomalous cold airmass over the region, and blustery WNW winds 15-20 mph with occasional gusts up to 30-35 mph, strongest inland. This is yielding wind chills in the teens inland and 20s closer to the coast. Earlier discussion below.
=================================================================
Per SPC mesoanalysis, core of cold air aloft stretches from Northeast PA into Lower Hudson Valley of NY eastward into CT/RI/MA, with 500 mb temps down to -32C to -33C! This is supporting a cold morning in progress (especially by early March standards) with temps slowly climbing thru the 20s. Feels colder given blustery NW winds 15-20 kt, gusting to 25-35 kt, yielding wind chills in the single digits and teens.
As expected, cold 850 mb temps today ranging from -12C to -14C across the region this afternoon. Model soundings support boundary layer mixing to almost this level, combined with downsloping WNW winds, these temps aloft will support highs 30-35 in the Coastal Plain including Boston, but highs only mid to upper 20s across the interior. These highs are about 10 degs below than normal, and it will feel colder given the blustery WNW winds.
Airmass is extremely dry with SPC mesoanalysis indicating PWATs down to a tenth of an inch. This is also reflective at the surface with subzero dew pts being observed across the area at 10 am. This will result in afternoon RH values in the 20 percent range. Hence, very dry airmass.
Mid/high clouds streaming across Northern MA into VT/NH and this is the result of slightly warmer airmass aloft (500 mb), ahead of the next reinforcing surge of colder air just across the border.
SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SATURDAY/. Low pressure lingers over Eastern Canada into Saturday, maintaining a surface pressure gradient over Srn New England although diminished from the levels of today. There will also be lingering clouds from the cold pool aloft. But with continued dry air at the surface, expect dry weather through Saturday.
The wind may keep the air stirred tonight and prevent radiational cooling. With dew points in the single numbers, there should be room for temperatures to drop into the teens. Temps aloft will show similar values to today. Therefore will forecast similar max temps for Saturday.
LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/. Highlights .
* A chilly but pleasant Sunday with plentiful sunshine and light winds. * Warming trend begins Monday with highs in the 50s and possibly 60s Tuesday into Thursday away from the immediate coast.
Saturday night into Sunday .
A highly amplified H5 ridge that extends into the northern Canadian Prairies builds into the Great Lakes, helping to deepen the corresponding H5 trough over Eastern US. This development also helps to nudge the attendant upper closed low further east. On Saturday night, conditions look ideal for good radiational cooling thanks to diminishing winds, clear skies and remaining snow cover north and west of the I-95 corridor. Therefore, we lowered the low temperature on Saturday night to 10th percentile of guidance. On Sunday, 925mb temperatures moderate to between -7 to -9C. With mixing up to that level, expect highs in the 30s across most locations, except for upper 20s in the interior high terrain. With surface high pressure overhead, light winds and plentiful sunshine will make for a rather pleasant day on Sunday despite high temperatures running 5 to 10 degrees below normal.
Monday into Thursday .
The new work week looks to feature a transition into a +AO/+NAO/-PNA regime, which is favorable for a more significant and prolonged warm up. In fact, the AO is forecast to go highly positive, which is a strong signal for building warmth. Along with the lack of snow cover away from the interior and downsloping effect from strong southwesterly flow, blended model guidance will likely be a little too cool with the high temperatures on Tuesday and Wednesday. Lending further confidence to anomalous warmth during this period is that both the NAEFS and ENS Situational Ensemble Awareness Table show heights at all levels and 1000mb temperatures rising to 90th percentile for Tuesday and 97.5th to 99th percentile for Wednesday and Thursday. Given such a strong signal for temperatures to overperform, have used the 90th percentile of guidance for forecast highs, yielding low to mid 50s on Tuesday and upper 50s to low 60s for Wednesday away from the immediate coast. Low temperatures overnight Tuesday into Wednesday as well as overnight Wednesday into Thursday are also adjusted using the 75th percentile of guidance as warm air advection continues in earnest.
As for precipitation chances, a passing shortwave to our north could produce some showers on Tuesday but it is way too early to pinpoint the impacts and timing of any precipitation. Then on Thursday, a cold front passage could produce some showers but models still differ significantly on the timing of the frontal passage. Overall, a mainly dry forecast is in store through at least mid week.
An interesting tidbit is that this past meteorological winter has been notable for the lack of anomalous warmth, unlike the previous winter. All four of our climate sites have gone a considerable amount of time without exceeding 50F for high temperature. Boston and Providence last saw above 50F on January 16 2021, with highs of 52 and 55F respectively. Hartford and Worcester last saw above 50F on Christmas Day last year, with highs of 63 and 61F respectively. This run is likely to come to an end by Tuesday. In fact, the CPC has a 70 to 80 percent probability of above normal temperatures for Southern New England in its latest 6 to 10 day outlook. Talk about a taste of spring!
AVIATION /18Z FRIDAY THROUGH WEDNESDAY/. Forecaster Confidence Levels.
Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent.
18z update .
VFR, dry and blustery WNW winds thru Sunday. Strongest winds will be this afternoon.
KBOS TAF . High confidence in TAF. VFR.
KBDL TAF . High confidence in TAF. VFR.
Outlook /Sunday Night through Tuesday/ .
Sunday night through Tuesday: VFR.
MARINE. Gusty northwest winds today with potential for 25 to 30 kt gusts. Winds diminish later tonight and Saturday with wind gusts Saturday around 20 kt. Seas 5 to 6 feet on the outer waters today, subsiding to 5 foot seas on the southern outer waters Saturday.
Light freezing spray will a factor through Saturday. Favorable conditions include air temps around freezing, sea temps 35F to 40F, and strong gusty northwest winds.
Expect Small Craft Advisory conditions today and tonight, diminishing below that level on Saturday.
Outlook /Saturday Night through Tuesday/.
Saturday Night: Winds less than 25 kt. Areas of seas approaching 5 ft.
Sunday through Sunday Night: Winds less than 25 kt.
Monday: Winds less than 25 kt. Seas locally approaching 5 ft.
Monday Night: Winds less than 25 kt.
Tuesday: Winds less than 25 kt. Areas of seas approaching 5 ft.
BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Small Craft Advisory until 9 AM EST Saturday for ANZ231>235- 237-250-251. Small Craft Advisory until 4 AM EST Saturday for ANZ230-236. Small Craft Advisory until 5 PM EST Saturday for ANZ254>256.
SYNOPSIS . WTB/Chai NEAR TERM . Nocera SHORT TERM . WTB LONG TERM . Chai AVIATION . Nocera/Chai MARINE . WTB/Chai
Weather Reporting Stations
EDIT (on/off)  Help NOTE: Click on distance to see the station location on a mapStations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
IOSN3 - Isle of Shoals, NH | 15 mi | 24 min | W 25 G 28 | 26°F | 1002.8 hPa (-1.3) | -8°F | ||
BGXN3 - Great Bay Reserve, NH | 17 mi | 99 min | W 12 | 27°F | 1004 hPa | 7°F | ||
44073 | 20 mi | 140 min | WNW 18 G 23 | 26°F | 40°F | |||
44029 - Buoy A0102 - Mass. Bay/Stellwagen | 24 mi | 80 min | W 19 G 25 | 29°F | 3 ft | 1003.3 hPa | ||
44013 - BOSTON 16 NM East of Boston, MA | 33 mi | 34 min | W 16 G 23 | 1005 hPa | ||||
44030 - Buoy B0102 - Western Maine Shelf | 33 mi | 80 min | 40°F | 4 ft | ||||
44098 - Jeffrey's Ledge, NH (160) | 34 mi | 58 min | 42°F | 6 ft | ||||
BHBM3 - 8443970 - Boston, MA | 34 mi | 54 min | 32°F | 36°F | 1003.7 hPa | |||
WELM1 - 8419317 - Wells, ME | 38 mi | 54 min | WNW 13 G 22 | 26°F | 38°F | 1003.2 hPa | ||
WEXM1 - Wells Reserve, ME | 39 mi | 84 min | W 8.9 | 25°F | 0°F |
Wind History for Wells, ME
(wind in knots) EDIT (on/off)  Help3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 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 | |
Last 24hr | NW G22 | NW G25 | NW G21 | NW G27 | NW G20 | NW G21 | NW G20 | NW G19 | NW G18 | NW G18 | NW G15 | NW G14 | NW G16 | NW G14 | NW G19 | NW G17 | NW G20 | NW G22 | NW G18 | NW G24 | NW G21 | NW G17 | NW G20 | NW G20 |
1 day ago | W G18 | NW G16 | NW G10 | NW | NW | NW G12 | NW G12 | NW G16 | NW | NW G10 | NW G10 | NW G9 | W G6 | W | NW | NW G14 | NW G14 | NW G16 | NW G23 | NW G21 | NW G18 | NW G24 | NW G22 | W G27 |
2 days ago | NW G31 | NW G30 | NW G27 | NW G16 | NW G19 | NW G19 | W G17 | W G13 | W G13 | NW G14 | NW G12 | SW | W G11 | SW G10 | SW G10 | SW G12 | W | W G7 | W G10 | W G10 | W G11 | W G20 | W G18 | NW G21 |
Airport Reports
EDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
Lawrence Municipal Airport, MA | 17 mi | 30 min | WNW 11 G 23 | 10.00 mi | Fair | 31°F | -3°F | 23% | 1004.7 hPa |
Beverly, Beverly Municipal Airport, MA | 17 mi | 31 min | WNW 11 | 10.00 mi | Fair | 32°F | -8°F | 17% | 1003.7 hPa |
Pease Air Force Base / Portsmouth, NH | 19 mi | 88 min | WNW 10 G 20 | 10.00 mi | Overcast | 25°F | -6°F | 26% | 1004 hPa |
Link to 5 minute data for KBVY
Wind History from BVY (wind in knots)
3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 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 | |
Last 24hr | NW G21 | W G26 | W G25 | NW G25 | NW G23 | NW G22 | NW G18 | NW G27 | NW G22 | NW G27 | NW G29 | NW G30 | NW G30 | NW G24 | NW G26 | NW G25 | NW G26 | NW G24 | NW G27 | NW G25 | W G20 | W G25 | NW G23 | NW |
1 day ago | W G17 | W | NW | NW | NW | W | W | W | NW | NW | NW | Calm | NW | N | Calm | NW | NW | NW | NW G21 | NW G26 | NW G24 | W G22 | W G23 | W G25 |
2 days ago | NW G33 | NW G30 | W G24 | NW G18 | W G22 | W G16 | W G17 | W | Calm | W | SW | SW | SW | SW | SW | SW | SW | SW | W | W G16 | NW G16 | W G17 | NW | W |
Tide / Current Tables for Merrimack River Entrance, Massachusetts (2)
EDIT Weekend mode (on/off) (on/off)  Help One Week of DataMerrimack River Entrance
Click for Map
Fri -- 12:18 AM EST Moonrise
Fri -- 03:38 AM EST 9.34 feet High Tide
Fri -- 06:11 AM EST Sunrise
Fri -- 09:54 AM EST Moonset
Fri -- 10:07 AM EST -0.38 feet Low Tide
Fri -- 04:19 PM EST 8.17 feet High Tide
Fri -- 05:37 PM EST Sunset
Fri -- 08:32 PM EST Last Quarter
Fri -- 10:24 PM EST 0.41 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 12:18 AM EST Moonrise
Fri -- 03:38 AM EST 9.34 feet High Tide
Fri -- 06:11 AM EST Sunrise
Fri -- 09:54 AM EST Moonset
Fri -- 10:07 AM EST -0.38 feet Low Tide
Fri -- 04:19 PM EST 8.17 feet High Tide
Fri -- 05:37 PM EST Sunset
Fri -- 08:32 PM EST Last Quarter
Fri -- 10:24 PM EST 0.41 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
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 |
3.3 | 5.7 | 7.9 | 9.1 | 9.3 | 8.4 | 6.7 | 4.3 | 2 | 0.3 | -0.4 | 0 | 1.4 | 3.4 | 5.6 | 7.3 | 8.1 | 8 | 6.9 | 5.2 | 3.1 | 1.4 | 0.5 | 0.6 |
Tide / Current Tables for Newburyport (Merrimack River), Massachusetts Current
EDIT (on/off)  Help One Week of DataNewburyport (Merrimack River)
Click for Map
Fri -- 12:18 AM EST Moonrise
Fri -- 02:09 AM EST 1.42 knots Max Flood
Fri -- 04:30 AM EST -0.00 knots Slack
Fri -- 06:12 AM EST Sunrise
Fri -- 07:01 AM EST -1.41 knots Max Ebb
Fri -- 09:54 AM EST Moonset
Fri -- 10:58 AM EST 0.00 knots Slack
Fri -- 02:51 PM EST 1.29 knots Max Flood
Fri -- 05:02 PM EST -0.00 knots Slack
Fri -- 05:38 PM EST Sunset
Fri -- 07:23 PM EST -1.15 knots Max Ebb
Fri -- 08:32 PM EST Last Quarter
Fri -- 11:13 PM EST 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 12:18 AM EST Moonrise
Fri -- 02:09 AM EST 1.42 knots Max Flood
Fri -- 04:30 AM EST -0.00 knots Slack
Fri -- 06:12 AM EST Sunrise
Fri -- 07:01 AM EST -1.41 knots Max Ebb
Fri -- 09:54 AM EST Moonset
Fri -- 10:58 AM EST 0.00 knots Slack
Fri -- 02:51 PM EST 1.29 knots Max Flood
Fri -- 05:02 PM EST -0.00 knots Slack
Fri -- 05:38 PM EST Sunset
Fri -- 07:23 PM EST -1.15 knots Max Ebb
Fri -- 08:32 PM EST Last Quarter
Fri -- 11:13 PM EST 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
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 |
1.3 | 1.4 | 1.4 | 1.3 | 0.5 | -0.5 | -1.2 | -1.4 | -1.2 | -0.9 | -0.6 | 0 | 0.8 | 1.1 | 1.2 | 1.3 | 0.9 | 0 | -0.7 | -1.1 | -1.1 | -0.8 | -0.5 | -0.1 |
Weather Map
(on/off)  Help Weather Map
GEOS Local Image of EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West Contential US Full GOES-East
Ground Weather Radar Station
Please read website Cookie, Privacy, and Disclamers by clicking HERE.