Sunday, April22, 2018 L-36.com


Marine Weather and Tides
Dover, NH

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 5:47AMSunset 7:36PM Sunday April 22, 2018 2:16 PM EDT (18:16 UTC) Moonrise 11:29AMMoonset 1:41AM Illumination 49% Phase: First Quarter Moon; Moon at 7 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- 830 Am Edt Sun Apr 22 2018
Today..NW winds 5 to 10 kt, becoming sw this afternoon. Seas 1 foot or less.
Tonight..W winds 5 to 10 kt, becoming nw after midnight. Seas 1 foot or less.
Mon..NW winds around 5 kt, becoming S with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon.
Mon night..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Tue..S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Tue night..S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft.
Wed..SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Rain.
Wed night..SE winds 5 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of rain.
Thu..S winds around 10 kt. Seas 5 to 7 ft. A chance of showers.
Thu night..SW winds 5 to 10 kt. Seas 4 to 7 ft.
ANZ100 830 Am Edt Sun Apr 22 2018
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure centered over the great lakes will build east across the waters through Tuesday before exiting into the maritimes. Low pressure will move north from the carolinas Wednesday then move into the gulf of maine Thursday.

7 Day Forecast for Marine Location Near Dover, NH
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location: 43.2, -70.87     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 221604 aab
afdgyx
area forecast discussion... Updated
national weather service gray me
1204 pm edt Sun apr 22 2018

Synopsis
High pressure centered over the great lakes will build east into
the region today... Then stick around through Tuesday with fair
weather and seasonable temperatures before exiting into the
maritimes. By mid week, unsettled weather returns with the
approach of our next storm system.

Near term through tonight
1205 pm update... Few changes to the forecast on this very
pretty spring day. Sunny skies and low dew points are allowing
for temperatures to climb into the mid to upper 50s on the
coastal plain and southern nh. Have adjusted highs up in certain
places by just a couple degrees.

614 am... For this estf update only minor adjustments to near
term grids to reflect the current mesonet.

Prev disc...

at 06z... A 1031 millibar high was centered over the
great lakes. GOES imagery showed widely scattered clouds across
the area pivoting around a decaying storm system centered
northeast of newfoundland. For today... The building surface high
and rising heights bring a mostly sunny and mild day with a
diminishing northwest flow to round out the weekend. Highs will
range from the upper 40s and lower 50s across the mountains... To
mid 50s to lower 60s elsewhere.

Short term Monday
Clear and cool tonight under the building surface high and i
undercut machine temperatures a bit in the dry airmass. On
Monday... The high will be centered to our south. After a chilly
start... Temperatures will rebound to the mid 50s to lower 60s
under the strong late april sunshine. The light synoptic flow
will give up the ghost by afternoon in favor of a strong
seabreeze with the mercury dropping off during the afternoon
near the coast.

Long term Monday night through Saturday
The trend in model guidance has been to slow the advance of
upper low pressure... Allowing for one more dry and mostly clear
day tue. H8 temps around +5c will support widespread 60s across
much of the forecast area.

But all good things must come to an end... And so will our
warming trend by wed. Upper low pressure will lift into the
northeast as it is picked up by a trof digging across the
central conus. Sely LLJ will develop and help transport pwat
values around 2 standard deviations above normal towards the
forecast area. The 22.00z GFS and cmc feature a stronger
interaction with the approaching trof... And thus higher qpf
across the forecast area... While the 22.00z ECMWF keeps forcing
more separate and lighter QPF amounts. ECMWF eps shows nearly
half of the members on the more robust side of qpf... Giving some
support to the north american solutions. That being said... This
will be lighter than the last QPF event for the region. It will
be worth keeping an eye on the headwaters though... As the
gradual warm up and around an inch of QPF will bring some river
forecast points to near flood stage. Ensemble river guidance
using the naefs QPF does bring several points... Including on the
saco... Swift... And pemi... To a 30 to 50 percent chance of
flooding. So I will continue to mention the threat in the hwo.

Beyond the midweek system... Ern CONUS trofing looks to hang
around. This will mean unsettled wx continues as we will be on
the downstream side of the trof... But the pattern will also not
be overly cold either.

Aviation 13z Sunday through Thursday
Short term through Monday ...VFR.

Long term...VFR conditions prevail thru early wed. Developing
onshore flow will see lowering CIGS by Wed afternoon... And
precip moving in from the sw. Areas of MVFR ifr are likely in
ra thru early thu. Ifr CIGS will be most likely near the
coast... But rainfall will be fairly widespread across the area.

Marine
Short term through Monday ... Quiet on the waters with winds and
seas below SCA under building surface high. For Monday mid day
and afternoon... Developing seabreeze along the coast will bring
gusts to 20 kt and briefly building seas.

Long term... Persistent sly flow by Tue may allow seas outside
the bays to build to 5 ft. As flow becomes more ely and llj
increases into Wed and thu... More widespread SCA conditions are
likely with gusts to 25 kts and seas over 5 ft.

Fire weather
Winds gusting to the 15-25 mph range along with low dew points
will bring marginal meteorological fire weather conditions to a
few spots in new hampshire and maine this afternoon.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... None.

Near term... Hanes
short term... Schwibs


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGXN3 - Great Bay Reserve, NH 10 mi91 min W 5.1 58°F 1031 hPa22°F
WELM1 - 8419317 - Wells, ME 18 mi46 min S 11 G 13 48°F 43°F1026.6 hPa
WEXM1 - Wells Reserve, ME 19 mi76 min SSE 6 54°F 29°F
IOSN3 - Isle of Shoals, NH 21 mi76 min ESE 8.9 G 9.9 47°F 1026.4 hPa (-0.5)22°F
44030 - Buoy B0102 - Western Maine Shelf 23 mi72 min SE 5.8 G 5.8 46°F 45°F1025.4 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 45 mi86 min E 3.9 G 5.8 47°F 44°F1 ft1026.3 hPa (-0.7)26°F
CASM1 - 8418150 - Portland, ME 46 mi46 min 57°F 42°F1025.9 hPa
44098 - Jeffrey's Ledge, NH (160) 46 mi40 min 46°F1 ft
44029 - Buoy A0102 - Mass. Bay/Stellwagen 49 mi72 min 44°F 44°F1 ft1025.9 hPa

Wind History for Wells, ME
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NW9
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S8
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G23
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rochester - Skyhaven Airport, NH6 mi25 minNNW 1110.00 miFair58°F17°F20%1026 hPa
Pease Air Force Base / Portsmouth, NH8 mi80 minNW 5 G 1610.00 miFair57°F15°F19%1026.3 hPa
Sanford, Sanford Regional Airport, ME16 mi20 minW 510.00 miFair58°F17°F20%1026.6 hPa

Wind History from DAW (wind in knots)
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Last 24hrNW10NW16
G21
NW16NW16
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NW5NW4CalmW4CalmCalm343NW6NW4NW7W6NW7NW11
G19
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N7NW11
1 day agoNW17
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NW85W5W5W64W3W6W4NW9N9NW13
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2 days ago3S7NW11NW9NW11NW11NW4NW8NW13NW7
G16
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Tide / Current Tables for Dover, Cocheco River, Piscataqua River, New Hampshire
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Dover
Click for Map
Sun -- 01:40 AM EDT     Moonset
Sun -- 05:50 AM EDT     Sunrise
Sun -- 06:14 AM EDT     7.88 feet High Tide
Sun -- 11:28 AM EDT     Moonrise
Sun -- 12:38 PM EDT     -0.24 feet Low Tide
Sun -- 05:46 PM EDT     First Quarter
Sun -- 07:05 PM EDT     6.99 feet High Tide
Sun -- 07:34 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.512.345.87.27.97.66.64.92.81-0.1-0.20.51.93.75.46.676.75.642.3

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
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Portsmouth Harbor Entrance
Click for Map
Sun -- 12:34 AM EDT     0.00 knots Slack
Sun -- 01:38 AM EDT     Moonset
Sun -- 02:43 AM EDT     1.42 knots Max Flood
Sun -- 05:49 AM EDT     Sunrise
Sun -- 06:13 AM EDT     -0.00 knots Slack
Sun -- 09:19 AM EDT     -2.10 knots Max Ebb
Sun -- 11:28 AM EDT     Moonrise
Sun -- 01:19 PM EDT     0.00 knots Slack
Sun -- 03:17 PM EDT     1.26 knots Max Flood
Sun -- 05:46 PM EDT     First Quarter
Sun -- 07:04 PM EDT     -0.00 knots Slack
Sun -- 07:33 PM EDT     Sunset
Sun -- 09:48 PM EDT     -1.77 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.50.41.21.410.50.1-0.6-1.5-2.1-2-1.6-1.1-0.30.61.21.10.70.50-0.8-1.6-1.8-1.5

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Northeast    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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Gray/Portland, ME (14,3,4,5)
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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 numerious 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.