Wednesday, November14, 2018 L-36.com


Marine Weather and Tides
Dover, NH

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:34AMSunset 4:21PM Wednesday November 14, 2018 3:01 PM EST (20:01 UTC) Moonrise 1:23PMMoonset 11:21PM Illumination 42% 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- 936 Am Est Wed Nov 14 2018
.gale warning in effect through this evening...
This afternoon..NW winds 25 to 30 kt with gusts up to 40 kt. Seas 6 to 9 ft.
Tonight..NW winds 15 to 25 kt, diminishing to 10 to 20 kt after midnight. Gusts up to 35 kt. Seas 4 to 7 ft, subsiding to 3 to 5 ft after midnight.
Thu..N winds 5 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 4 ft, subsiding to 1 to 2 ft in the afternoon.
Thu night..E winds 5 to 15 kt with gusts up to 20 kt, increasing to 10 to 20 kt with gusts up to 30 kt after midnight. Seas around 2 ft, building to 3 to 5 ft after midnight. Rain or snow likely. Vsby 1 to 3 nm in the evening.
Fri..NE winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft, building to 7 to 10 ft in the afternoon. Rain.
Fri night..NW winds 10 to 20 kt. Gusts up to 30 kt in the evening. Seas 7 to 10 ft, subsiding to 5 to 8 ft after midnight.
Sat..W winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft.
Sat night..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Sun..NW winds 5 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Sun night..W winds 5 to 10 kt. Seas 2 to 4 ft. A chance of rain or snow showers.
ANZ100 936 Am Est Wed Nov 14 2018
Synopsis for stonington me to merrimack river ma out to 25 nm.. Low pressure rapidly exits northeast into the maritimes, with strong northwest winds in its wake today. The next potential coastal storm will arrive late Thursday night or Friday. &&


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 141947
afdgyx
area forecast discussion
national weather service gray me
247 pm est Wed nov 14 2018

Synopsis
Arctic high pressure will remain overhead new england tonight,
bringing potentially record cold temperatures to the region.

The next coastal storm will arrive late Thursday night continuing
into Friday bringing snowfall to maine and new hampshire. An
upper level disturbance will remain over the region Saturday
before canadian high pressure builds into the region Sunday. An
arctic front will cross the region Monday, followed by another
weak disturbance midweek.

Near term through tonight
A deep dome of arctic high pres settles over the region tonight
allowing winds to diminish and become near calm by later
this evening. With clear skies and winds becoming calm, a good
3-6 hour window of radiational cooling expected later tonight.

With fresh snow cover the mountains temps should plummet to
below zero in many spots. Elsewhere in areas where there is no
snow cover, single numbers to lower teens can be expected. This
should set some new record low temps for the date.

Short term Thursday through Thursday night
A sunny start to Thursday but overunning WAA clouds will
overspread the area from south to north in the afternoon and
thicken by early evening. Models all agree on an initial shot of
stg WAA overrunning the deep cold dome over the region. This
will allow an initial band of moderate to hvy snow to develop by
evening over southern areas of nh and quickly spread north and
east into northern nh and all of SRN central me. Considering the
depth of the arctic air mass and very dry air mass allowing
substantial evapo cooling, all snow will be forecast with no
mixing. A winter storm watch will be issued for these southern
areas beginning in the evening with the watch extended to the
north over all other areas after midnight. After the initial
shot of WAA snow there may be a brief break in the pcpn toward
morning until the low-mid level low with its pcpn shield tracks
northeast to off the me nh coast thu.

Overall going with the record cold temps tonight with most
guidance being warmer. Used a blend of model guid for temps
thu Thu night. If anything temps will tend to be lowered
further Thu night.

Long term Friday through Wednesday
12z models in relatively good agreement with the overall track
of the upcoming coastal system with near record cold in place at
the beginning portion of the long range forecast.

Arctic air initially in place Friday morning over northern new
england will allow for a classic nor'easter track along or near
the CAPE cold canal around daybreak. A slow commute is expected.

Dynamic cooling aloft will continue as the h5 upper low shift
north and east. H7 low to remain along or just south of our
forecast area, keeping southern area in locally heavy
precipitation. Several sites across our region will remain in a
favorable dendritic growth zone.

Snow may mix with sleet and rain along and near the coastline
during the midday and afternoon hours. However, this will be
after the majority of the precipitation has already fallen and
accumulated.

System exits to our east Friday night with mountain snow showers
continuing, especially over the west, northwest facing high
terrain.

The atmosphere will be allow to modify on Saturday ahead of the
next approaching strong cold front with h8 readings near around
-4c. Snow showers may cross the region with the passage of this front
Saturday night leadings to a seasonably cool day with sunshine
and canadian high pressure on Sunday.

Much more cold air will be building to our northwest on Monday
as an arctic front crosses the region during the afternoon
hours. Snow squalls may accompany this system as low pressure
develops over our region and shifts east. A weak weather
disturbance will then shift east from the great lakes region
midweek next week as below normal temperatures continue.

Aviation 19z Wednesday through Monday
Short term...VFR tonight and thu. Conds lowering to ifr in snow over
srn nh Thu evening overspreading the rest of the region by
03-06z.

Long term... Ifr with areas of lifr in ra, pl, sn and fog. Sfc
wind gusts to 25 kt on Friday.

Marine
Short term... Gales will continue into the evening due to the stg
grad winds combined with stg CAA over the relatively warm ocean
waters, winds should diminish later tonight allowing the gales
to be dropped. Light winds for Thu but gales will likely be
needed Thu night once again.

Long term... Gale warnings will likely be needed once again for
Thursday night into Friday as low pressure passes through the
gulf of maine.

Gyx watches warnings advisories
Me... Winter storm watch from late Thursday night through Friday
afternoon for mez007>009-012>014-019>022-025>028.

Winter storm watch from Thursday evening through Friday
afternoon for mez018-023-024.

Nh... Winter storm watch from late Thursday night through Friday
afternoon for nhz001>006.

Winter storm watch from Thursday evening through Friday
afternoon for nhz007>015.

Marine... Gale warning until midnight est tonight for anz150>154.

Ram jc


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGXN3 - Great Bay Reserve, NH 10 mi76 min W 11 34°F 11°F
WELM1 - 8419317 - Wells, ME 18 mi31 min NNW 16 G 24 29°F 49°F1026.2 hPa
WEXM1 - Wells Reserve, ME 19 mi61 min WNW 11 29°F 4°F
IOSN3 - Isle of Shoals, NH 21 mi61 min WNW 26 G 28 31°F 1024.5 hPa (+0.9)7°F
44030 - Buoy B0102 - Western Maine Shelf 24 mi57 min NW 23 G 31 31°F 49°F5 ft1025.3 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 45 mi71 min NW 21 G 27 29°F 49°F4 ft1024 hPa (+1.4)11°F
CASM1 - 8418150 - Portland, ME 46 mi31 min 26°F 48°F1026.3 hPa
44029 - Buoy A0102 - Mass. Bay/Stellwagen 49 mi57 min WNW 33 G 39 34°F 50°F4 ft1024.9 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rochester - Skyhaven Airport, NH6 mi70 minWNW 16 G 2910.00 miPartly Cloudy30°F6°F36%1025 hPa
Pease Air Force Base / Portsmouth, NH8 mi2.1 hrsWNW 17 G 2810.00 miA Few Clouds33°F4°F29%1024.7 hPa
Sanford, Sanford Regional Airport, ME16 mi65 minWNW 14 G 3410.00 miPartly Cloudy29°F7°F39%1025.9 hPa

Wind History from DAW (wind in knots)
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Last 24hrN7NW7W8
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1 day agoS4CalmCalmCalmCalmCalmNW3CalmCalmCalmCalmCalmNW4NW3E3E35E5CalmNW5NW7N10N8NW14
2 days agoW7NW733CalmCalm44W33NW3W4NW3CalmNW5Calm3453553Calm

Tide / Current Tables for Salmon Falls River entrance, Piscataqua River, New Hampshire
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Salmon Falls River entrance
Click for Map
Wed -- 05:11 AM EST     6.11 feet High Tide
Wed -- 06:34 AM EST     Sunrise
Wed -- 11:20 AM EST     1.43 feet Low Tide
Wed -- 12:22 PM EST     Moonrise
Wed -- 04:20 PM EST     Sunset
Wed -- 05:14 PM EST     6.54 feet High Tide
Wed -- 10:20 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.91.83.24.65.76.15.95.24.12.91.91.51.62.33.54.966.56.45.74.63.21.91.1

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
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Portsmouth Harbor Entrance
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Wed -- 01:17 AM EST     0.89 knots Max Flood
Wed -- 05:18 AM EST     -0.00 knots Slack
Wed -- 06:34 AM EST     Sunrise
Wed -- 07:47 AM EST     -1.36 knots Max Ebb
Wed -- 11:46 AM EST     0.00 knots Slack
Wed -- 12:21 PM EST     Moonrise
Wed -- 01:34 PM EST     0.90 knots Max Flood
Wed -- 04:19 PM EST     Sunset
Wed -- 05:14 PM EST     -0.00 knots Slack
Wed -- 08:13 PM EST     -1.66 knots Max Ebb
Wed -- 10:20 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.90.80.50.40.2-0.5-1.2-1.3-1.1-0.9-0.50.20.80.80.50.30.1-0.4-1.2-1.6-1.5-1.3-1

Weather Map and Satellite Images
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wmap_A
GOES 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.
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Wind Forecast for Gray/Portland, ME (15,3,4,5)
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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.