Sunday, August9, 2020
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Marine Weather and Tides
Hampton Beach, NH

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 5:42AMSunset 7:55PM Sunday August 9, 2020 3:58 AM EDT (07:58 UTC) Moonrise 10:59PMMoonset 11:28AM Illumination 72% Phase: Waning Gibbous; Moon at 20 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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ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 239 Am Edt Sun Aug 9 2020
Today..S winds 5 to 10 kt with gusts up to 20 kt, increasing to 10 to 15 kt with gusts up to 20 kt late. Seas 2 to 3 ft.
Tonight..S winds 10 to 15 kt, becoming sw 5 to 10 kt after midnight. Seas 2 to 3 ft.
Mon..S winds 5 to 10 kt. Seas around 2 ft.
Mon night..S winds 5 to 10 kt. Seas 2 to 3 ft.
Tue..S winds 5 to 10 kt. Seas around 2 ft.
Tue night..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Wed..S winds 10 to 15 kt. Seas 2 to 3 ft.
Wed night..S winds 5 to 15 kt, becoming sw 5 to 10 kt after midnight. Seas 2 to 3 ft. A chance of showers.
Thu..W winds around 5 kt, becoming se in the afternoon. Seas around 2 ft. A chance of showers.
Thu night..S winds around 5 kt, becoming N after midnight. Seas around 2 ft. A chance of showers in the evening.
ANZ100 239 Am Edt Sun Aug 9 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. Weak high pressure remains over the waters today, drifting east with time. No major weather hazards are expected over the waters although some fog may develop at times, mainly during the overnight periods with an outside chance of some showers and Thunderstorms through midweek. &&


7 Day Forecast for Marine Location Near Hampton Beach, NH
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location: 42.89, -70.77     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 090651 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 251 AM EDT Sun Aug 9 2020

SYNOPSIS. Warmer and increasingly humid air will spread across the area through the first half of the new work week. Along with the building humidity will come the chance of a few showers and thunderstorms from time to time. A cold front will cross the area early Thursday . with a bit less heat and humidity to follow for Friday and the start of next weekend.

NEAR TERM /THROUGH TODAY/. At 06z . a 1021 millibar high was centered over southeast New England. A weak surface trough extended from the Ottawa Valley through western New England. GOES water vapor showed a weak impulse vicinity of the Ottawa Valley and a second trailing impulse over the upper Great Lakes. NWS Doppler Radar mosaic showed a lone shower over northern New Hampshire likely associated with the weak trough and approaching impulse. Otherwise . some high and mid cloud was spilling into the area ahead of the approaching impulses. Some patchy valley fog and stratus had also developed over western New Hampshire. For today . the lead impulse will swing across northern sections today. CAMS and the remainder of the 00z model suite show scattered convection mainly across northern and western sections through early evening. Modified soundings show CAPE AOB 1000 j/kg and limited potential for strong convection. Highs today will be in the 80s . with a few upper 70s along the immediate coastline.

SHORT TERM /TONIGHT THROUGH 6 PM MONDAY/. For tonight . the trailing impulse will cross the area with widely scattered showers and isolated thunderstorms possible. Otherwise . a partly cloudy and humid night with patchy fog developing Lows will be in the 60s. On Monday. the impulse will finally slide offshore by afternoon. Partly sunny skies along with the building heat and humidity should produce at least widely scattered convection . especially across inland sections. Highs will range from the mid 80s to lower 90s. Apparent temperatures will fall short of advisory criteria in southern New Hampshire . likely peaking in the lower 90s.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/. No significant changes to model guidance or the forecast package with this latest update. Heat and humidity will continue to be a factor through the midweek period.

00Z model suite continues to show a large scale upper level low pressure system crossing central, then eastern Canada for much of this upcoming work week. Western Maine and New Hampshire will remain on the periphery of this system, with very high upper level heights. A southwesterly flow at all levels will allow for increasingly deep moisture and heat to enter the region. Warm air advection will allow for H8 temperatures in the +18C to +20C range by Tuesday. With the increased moisture and surface temperatures likely to top out in the upper 80s to mid 90s over interior locations, max apparent temperatures will soar well into the 90s in some areas. Heat advisories may be required for portions of southern New Hampshire and interior southwest Maine. Along the coastal areas, temperatures will be slightly cooler thanks to onshore winds of the Gulf of Maine.

A short wave trough and accompanying weak frontal system will attempt to approach northern areas Tuesday afternoon and Tuesday night. This may allow for showers and with increased instability, a few thunderstorms.

The heat continues on Wednesday as an upper level trough passes by to our north. There may be a few showers or thunderstorms once again with temperatures in the upper 80s to lower 90s in the south and central areas. The coastline will be warmer this day than Tuesday as the gradient becomes more out of the southwest.

Thursday is the big question. Some of the models hint at the passage of a backdoor cold front during this time frame. The Euro brings the front through, but late in the day after the heat has already hit the region, while other models are more faster with the any cold air advection. In any case, moisture, heat and instability could pool over far southern areas of Maine and New Hampshire, fueling showers and thunderstorms during the day.

High pressure will likely build over the Canadian Maritimes Friday and into next weekend. This will set up a cooler onshore flow and the chance for moisture arriving off the Gulf of Maine and beyond.

AVIATION /06Z SUNDAY THROUGH THURSDAY/. Short Term /through Monday/ . Lcl IFR conditions in valley fog expected early this morning, mainly in the CT River Valley. Otw VFR with isold MVFR psb in -SHRA/-TSRA today through Monday. Lcl IFR possible once again tonight and early Monday in patchy stratus and fog.

Long Term . Scattered showers and possibly a few thunderstorms expected through midweek, mainly during the afternoon and early evening hours and mainly away from the coast. Locally IFR conditions in patchy fog through midweek as well, mainly at KLEB, KCON and KHIE.

MARINE. Short Term /Through Monday/ . Gradient remains light across the waters through Monday with winds and seas remaining below SCA.

Long Term . Winds and seas will remain mainly below SCA levels. However, southwesterly winds may gust as high as 25 knots along and near a frontal system Tuesday night. Pockets of fog possible from time to time.

GYX WATCHES/WARNINGS/ADVISORIES. ME . None. NH . None. MARINE . None.

NEAR TERM . Schwibs SHORT TERM . Schwibs LONG TERM . Cannon


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
IOSN3 - Isle of Shoals, NH 9 mi58 min SW 11 G 12 68°F 1018.4 hPa (-0.7)68°F
BGXN3 - Great Bay Reserve, NH 12 mi73 min ENE 1.9 59°F 1019 hPa59°F
CMLN3 13 mi174 min WNW 2.9 64°F
44073 15 mi114 min SSW 5.8 G 7.8 66°F 63°F
44030 - Buoy B0102 - Western Maine Shelf 27 mi114 min SW 7.8 G 9.7 1 ft
44029 - Buoy A0102 - Mass. Bay/Stellwagen 28 mi114 min WSW 7.8 G 9.7 68°F 1 ft1017.4 hPa
WELM1 - 8419317 - Wells, ME 32 mi64 min Calm G 2.9 62°F 63°F1018.9 hPa
44098 - Jeffrey's Ledge, NH (160) 33 mi53 min 64°F2 ft
WEXM1 - Wells Reserve, ME 33 mi58 min Calm 62°F 59°F
44013 - BOSTON 16 NM East of Boston, MA 38 mi68 min S 5.8 G 5.8 67°F 66°F1 ft1018.3 hPa (-1.0)67°F
BHBM3 - 8443970 - Boston, MA 40 mi64 min 71°F 64°F1018.5 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pease Air Force Base / Portsmouth, NH14 mi62 minN 010.00 miA Few Clouds65°F58°F79%1018.8 hPa
Lawrence Municipal Airport, MA22 mi64 minSSW 610.00 miFair69°F64°F87%1019.6 hPa
Beverly, Beverly Municipal Airport, MA23 mi65 minSW 610.00 miFair70°F64°F84%1018.6 hPa

Link to 5 minute data for KPSM

Wind History from PSM (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmSW5W6CalmW4CalmS3SE8SE10SE9S7SE4S4SE3S4CalmCalmW3Calm
1 day agoNW3CalmNW3CalmN4CalmE3E4E7E9SE7E9SE8SE7S6SE6SE5CalmS4CalmCalmCalmCalmCalm
2 days agoW5CalmCalmCalmSW5SW6W8W12W10W11
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Tide / Current Tables for Hampton Harbor, New Hampshire
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Hampton Harbor
Click for Map
Sun -- 03:43 AM EDT     8.19 feet High Tide
Sun -- 05:43 AM EDT     Sunrise
Sun -- 10:12 AM EDT     0.83 feet Low Tide
Sun -- 11:28 AM EDT     Moonset
Sun -- 04:10 PM EDT     8.06 feet High Tide
Sun -- 07:53 PM EDT     Sunset
Sun -- 10:36 PM EDT     1.16 feet Low Tide
Sun -- 10:59 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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356.87.98.27.66.34.52.71.40.91.12.34.167.487.86.95.33.62.11.31.2

Tide / Current Tables for Newburyport (Merrimack River), Massachusetts Current
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Newburyport (Merrimack River)
Click for Map
Sun -- 02:37 AM EDT     1.39 knots Max Flood
Sun -- 04:48 AM EDT     -0.00 knots Slack
Sun -- 05:43 AM EDT     Sunrise
Sun -- 07:14 AM EDT     -1.12 knots Max Ebb
Sun -- 11:07 AM EDT     0.00 knots Slack
Sun -- 11:28 AM EDT     Moonset
Sun -- 03:00 PM EDT     1.44 knots Max Flood
Sun -- 05:14 PM EDT     -0.00 knots Slack
Sun -- 07:40 PM EDT     -1.12 knots Max Ebb
Sun -- 07:53 PM EDT     Sunset
Sun -- 10:59 PM EDT     Moonrise
Sun -- 11:38 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.811.31.30.7-0.2-0.8-1.1-1-0.9-0.7-0.10.71.11.31.41.10.2-0.6-1-1.1-1-0.8-0.5

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 Gray/Portland, ME (3,6,7,8)
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Ground Weather Radar Station Portland, ME
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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.