Tuesday, February18, 2020
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Marine Weather and Tides
Newport, ME

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 6:29AMSunset 5:08PM Tuesday February 18, 2020 11:24 AM EST (16:24 UTC) Moonrise 4:20AMMoonset 1:19PM Illumination 26% Phase: Waning Crescent; Moon at 25 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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ANZ151 Penobscot Bay- 642 Am Est Tue Feb 18 2020
.small craft advisory in effect from 1 pm est this afternoon through this evening...
Today..E winds 5 to 15 kt with gusts up to 20 kt, becoming se 15 to 20 kt with gusts up to 30 kt this afternoon. Seas 1 to 2 ft, building to 2 to 4 ft this afternoon. Snow this afternoon. Vsby variable to less than one quarter nm this afternoon.
Tonight..SE winds 10 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Rain and snow in the evening, then a chance of rain after midnight. Vsby variable to less than one quarter nm, increasing to 1 to 3 nm after midnight.
Wed..W winds 10 to 20 kt, becoming 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft.
Wed night..NW winds 10 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. Light freezing spray.
Thu..NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Light freezing spray.
Thu night..NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft in the evening, then 1 foot or less. Light freezing spray.
Fri..W winds 5 to 10 kt. Seas around 2 ft. Light freezing spray.
Fri night..W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Sat..W winds 5 to 10 kt. Seas 1 to 2 ft.
Sat night..W winds 5 to 10 kt. Seas 1 foot or less.
ANZ100 642 Am Est Tue Feb 18 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. An area of low pressure crosses the region this afternoon and evening with a brief period of gales outside of the bays. Another period of gales is possible Wednesday under cool, dry northwest flow. High pressure will gradually build east into the region for the second half of the work week. &&


7 Day Forecast for Marine Location Near Newport, ME
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location: 44.86, -69.26     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 181610 AAA AFDGYX

Area Forecast Discussion . UPDATED National Weather Service Gray ME 1110 AM EST Tue Feb 18 2020

SYNOPSIS. A quick hitting low pressure system will bring accumulating snow this afternoon and evening, impacting the evening commute. Snow will transition to a brief mix and then to rain across the southern half of the forecast area before ending tonight. A cold front crosses the area Wednesday bringing snow showers to the mountains followed by breezy northwest winds. Quiet weather will prevail the second half of the week as high pressure settles over the eastern third of the US.

NEAR TERM /UNTIL 6 PM THIS EVENING/. Update . Forcing starting to take shape this morning . with areas of frontogenesis beginning to consolidate into a broader precip shield. Early burst of frontogenesis around H7 led to a narrow band of light snow . with corresponding light accumulation. Plenty of heavy snow reports are beginning to show up across the ALY forecast area . so I fully expect snow intensity to continue to ramp up as the strongest forcing just now moves into SWrn NH. Dry slot is already moving across Wrn NY . so it will be a narrow window for accumulation but snow should be moderate to heavy when it is coming down. The window for most likley heavy snow will be mid to late afternoon . especially over Wrn ME.

Previously . Today, an area of low pressure over Michigan will shift down the St Lawrence Valley, occluding as it does so, driven by a trough digging from central Canada down into the northeast CONUS. Regional radar and satellite shows cooling cloud tops and banded precipitation in isentropic upglide ahead of the low presently over western PA and NY. This broad shield of snow will cross into the Connecticut Valley later this morning and spread northeastward into Maine during the afternoon. As has been observed upstream this morning, the initial band of snow will struggle to reach the surface with very dry mid-levels (<5% on 00Z soundings out of KALB and KGYX). Subsequent bands will be well forced with snow picking up in intensity quickly as the column saturates. As has been well advertised, the time frame for impacts and accumulations will be fairly narrow, about 6-9 hours over any one location, as dry air is quick to intrude behind the occlusion/cold front.

Although precipitation starts initially as snow, surface temperatures gradually rise just above freezing over southern New Hampshire and extreme southwest Maine with a change over to rain before drying out late this evening. As precipitation overspreads the area later in the afternoon, mid-level flow picks up as a SSWerly h850 jet of 50-60kts approaches. While a strong inversion will keep temperatures from warming as strongly at the surface (and thus limit wind gusts inland), a warm nose develops aloft, which leaves the possibility of sleet and freezing rain at the rain/snow transition in time and space south of the Whites. North of a line between Portland and Lebanon NH, temperatures remain mostly below freezing with 2-4 inches of snow by 7 PM, then dry slotting starts to cut in from the west.

After about 7 PM, the forecast grows somewhat more complex as the triple point reaches the coast and amplifies along the southern shore of Maine. Onshore flow brings temperatures above freezing along the MidCoast of Maine with a transition to sleet and rain there. Amplification also enhances forcing over interior western Maine, which will hurl more moisture and force more QPF around the Rt 2 corridor and into the south-facing upslopes of western Maine. Although a wintry mix and rain is forecast over the 95 corridor between Portland and the capital region, higher elevations will pick up another 1-3" out of this. This pushes storm totals into the 3-6" range with locally higher amounts over peaks and ridges.

For headlines . although some locations in the western Maine mountains and the Whites may reach warning level snow (6+"), current thinking is that higher accumulations would be relegated to upslope areas and not necessarily be widespread enough to warrant upgrades. In New Hampshire, a messy period of sleet and freezing rain on top of slushy roadways during the evening commute led to the expansion of the advisory into Merrimack county. Otherwise, advisory-level snow, light icing, and impacts to the evening commute justify winter weather advisories over much of the area.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM WEDNESDAY/. Tonight, dry slotting is quick to filter in behind the occlusion and main shield of precipitation. This cuts PoPs off quickly from west to east late in the evening with most areas dry by midnight. Patchy fog and drizzle may develop for a brief period behind the departing system, then cold advection helps northwest flow pick up and scour out fog up by daybreak Wednesday as temperatures gradually cool into the 20s to near freezing. Troughing continues into Wednesday with breezy northwest winds leading to upslope clouds and a few snow showers over the north.

LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/. The ensemble and deterministic model solutions are in decent agreement on the long wave pattern through the upcoming weekend into early next week. The forecast period begins with a west coast ridge and a broad trough across much of the remainder of the CONUS. Pacific energy quickly breaks down the ridge and downstream trough with low amplitude split flow for the much of the forecast period By early next week. digging Pacific energy carves out a deep trough over the western CONUS with rising heights downstream across the east. With the exception of a quick shot of arctic air and below normal temperatures to begin the period . we should see above normal temperatures as the arctic air is largely contained to our north and west In the dailies. a few clouds and maybe a flurry for mountain sections Wednesday night with a passing surface trough. Otherwise it'll be cold and dry Thursday and Friday ahead of a building surface high. A milder return flow around the high will allow temperatures to rebound to above average values for the upcoming weekend and the start of the new work week. The next disturbance approaches by Tuesday with thermal profiles hinting at yet another mixed snow and rain event.

AVIATION /16Z TUESDAY THROUGH SATURDAY/. Short Term . Widespread IFR or worse restrictions today as snow breaks out over the region from SW to NE roughly 15-20Z under increasing southeasterly flow. A change over to rain over the coast and southern NH may improve VIS however low ceilings will persist until the system passes and dry air intrudes from the west later this evening. Expect winds to gust 20-25 kts over the coast this afternoon and evening, become variable as the low crosses into the Gulf of Maine, and turn westerly later tonight. Conditions gradually improve to VFR by dawn Wednesday except for at HIE where upslope flow keeps -shsn and MVFR to IFR conditions into the Wednesday. A period of SE to SW LLWS is likely tonight with strong mid-level flow and variable surface winds. Northwest wind gusts 20-30 kts are likely tomorrow with decreasing clouds.

Long Term .

No significant weather related impacts expected.

MARINE. Short Term . Low pressure crossing the region into the Gulf of Maine this evening will lead to a period of gales and 5-10 ft seas. Northwest gusts gradually decline tonight as the system pulls away to the east, but ramp up again on Wednesday, perhaps to gale force once again.

Long Term .

Wed night - Thu . SCA's likely along with freezing spray.

Sat . SCA's possible outside the bays.

GYX WATCHES/WARNINGS/ADVISORIES. ME . Winter Weather Advisory until 7 PM EST this evening for MEZ018. Winter Weather Advisory until 10 PM EST this evening for MEZ007>009-012>014-019>021-024-025. NH . Winter Weather Advisory until 7 PM EST this evening for NHZ002- 004-006-008>010. Winter Weather Advisory until 10 PM EST this evening for NHZ001. MARINE . Small Craft Advisory until 10 PM EST this evening for ANZ151- 153. Gale Warning from 4 PM this afternoon to 10 PM EST this evening for ANZ150-152-154.



NEAR TERM . Legro


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44033 - Buoy F0103 - West Penobscot Bay 57 mi81 min SSE 9.7 G 14 30°F 1 ft1032.9 hPa
ATGM1 - 8413320 - Bar Harbor, ME 65 mi55 min E 2.9 G 4.1 19°F 34°F1034.8 hPa

Wind History for Bar Harbor, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bangor, Bangor International Airport, ME23 mi4.5 hrsN 010.00 miOvercast7°F-2°F66%1035.3 hPa

Link to 5 minute data for KBGR

Wind History from BGR (wind in knots)
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NW16N12N10NW8NW8NW9W6NW8NW5CalmNW5CalmCalmCalmN3Calm
1 day agoSW5SW8SW6S7SW6CalmSW5SW7W8W3S5S5SW4CalmS3CalmS4S3SW3CalmSW3S4CalmCalm
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Tide / Current Tables for Hampden, Penobscot River, Maine
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Hampden
Click for Map
Tue -- 12:30 AM EST     1.29 feet Low Tide
Tue -- 03:17 AM EST     Moonrise
Tue -- 06:31 AM EST     Sunrise
Tue -- 06:52 AM EST     13.45 feet High Tide
Tue -- 12:17 PM EST     Moonset
Tue -- 01:24 PM EST     0.21 feet Low Tide
Tue -- 05:07 PM EST     Sunset
Tue -- 07:40 PM EST     11.75 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.52.95.58.611.212.913.412.510.27.141.60.30.52.14.87.71011.511.710.58.25.4

Tide / Current Tables for South Orrington, Penobscot River, Maine
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South Orrington
Click for Map
Tue -- 12:28 AM EST     1.24 feet Low Tide
Tue -- 03:17 AM EST     Moonrise
Tue -- 06:31 AM EST     Sunrise
Tue -- 06:51 AM EST     12.88 feet High Tide
Tue -- 12:17 PM EST     Moonset
Tue -- 01:22 PM EST     0.20 feet Low Tide
Tue -- 05:07 PM EST     Sunset
Tue -- 07:39 PM EST     11.25 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.41.42.85.38.310.812.412.9129.76.73.71.50.30.52.14.77.49.61111.2107.75.1

Weather Map
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wmap_A
GEOS 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Gray/Portland, ME (11,2,3,4)
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Ground Weather Radar Station Portland, ME
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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.