Saturday, July22, 2017

Marine Weather and Tides
Presque Isle, ME

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:59AMSunset 9:20PM Saturday July 22, 2017 5:35 PM ADT (20:35 UTC) Moonrise 4:08AMMoonset 7:35PM Illumination 1% Phase: Waning Crescent; Moon at 29 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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7 Day Forecast for Marine Location Near Presque Isle, ME
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location: 46.62, -68     debug

Area Discussion for - Caribou, ME
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Fxus61 kcar 222028
area forecast discussion
national weather service caribou me
428 pm edt Sat jul 22 2017

High pressure will dominate the weather through Sunday with
below seasonal temperatures expected. Low pressure will track
south of the region Monday into Tuesday. High pressure will
build across the region Wednesday.

Near term through Sunday
A weak surface trough along the coast will move offshore this
evening and the high will build southeastward from the james bay
region of canada. This is a very cool and dry air mass with dew
points dropping to the 40s across the entire forecast area by
later tonight. H850 temps will be less than 5c for much of the
forecast area by Sunday morning. With light winds and clear
skies tonight, lows will dip into the upper 30s in some of the
normally colder valleys of aroostook county. Elsewhere in
northern zones, lows will be in the lower 40s. Further south,
the cold air won't be quite as firmly entrenched and some mid-
level clouds will move through late in the night. As a result,
lows will only drop to the upper 40s to lower 50s. The clear
skies continue Sunday and temperatures will be a bit cooler in
the southern half of the forecast area than today with high
temperatures forecast to reach the upper 70s. A slack pressure
gradient will permit a sea breeze circulation to develop along
the coast in the afternoon.

Short term Sunday night through Tuesday
Surface high pressure will be ridged north and east of the
region Sunday night through Monday night. At the same time,
surface low pressure will track to the south while an upper
level trof slowly crosses the region. Cloud cover will increase
across the region Sunday night through early Monday. The
surface high will impede and slow the progress of rain across
the forecast area, particularly northern areas. Uncertainty
still exists regarding the placement of precipitation and rain
totals Monday through Monday night. Showers will then diminish
Tuesday with high pressure building across the region during the
afternoon. Temperatures will be at below normal levels
Monday Tuesday.

Long term Tuesday night through Saturday
High pressure will allow for a clear, calm, and cool tues
night, with lows ranging from the lower 50s downeast to the
upper 40s in the north woods. Pleasant weather will continue
through wed. Clouds will begin to overspread the CWA Wed night
as an upper trough and surface cold front approach from the
west, but both the cmc and ECMWF have backed off onset of precip
until after 12z thu, bringing them more in line with the gfs.

There remains some disagreement between models on how much
moisture and thus precip will be associated with this front,
with the ECMWF and cmc both on the wet side, and the gfs
decidely on the dry side. For what it's worth, the GFS has been
much more consistent than the other two models on both frontal
timing speed and the QPF forecast. Between 12z Thu and 12z fri,
generally kept pops to chance levels under 50%, but did go for
likely pops around 60% for the western border and st. John
valley between 18z Thu and 00z fri, with chance pops elsewhere.

Also put in chance of thunder for those areas Thu afternoon and

There is a chance that the front could stall out near the coast
thu night into fri, and keep showers and a few storms possible
there, as per the 12z GFS and 00z ecmwf. Or as the 12z cmc and
12z ECMWF point toward, the front may be slower moving and
perhaps a stronger upper-level trough or even cut-off low could
cause increased pops to persist across a broader swath of the
cwa for Friday and even into the weekend. Given the uncertainty,
and the significant flip between the 00z and 12z ECMWF runs,
pops were kept low and the time frame later next week will need
to be monitored for possibly significant changes to the

Aviation 20z Saturday through Thursday
Near term:VFR conditions are expected through the period with
no CIGS and excellent vis. Winds will be light tonight through

Short term:VFR conditions are expected across the region
Sunday night. Generally expectVFR conditions Monday, though
occasional MVFR conditions are possible across central and
downeast areas during the afternoon. Occasional MVFR ifr
conditions are possible Monday night into early Tuesday mostly
across central and downeast areas. Conditions will improve to
vfr levels later Tuesday.VFR conditions are expected Tuesday
night through Wednesday night. Occasional MVFR conditions are
possible Thursday, particularly across northern areas.

Near term: no significant weather is expected under high
pressure. Seas will remain around 2 feet or less.

Short term: winds seas will remain below small craft advisory
levels Sunday night through Tuesday. Visibilities could be
reduced in rain later Monday into Monday night, with a chance of
showers Tuesday.

Car watches warnings advisories
Me... Beach hazards statement until 8 pm edt this evening for mez029-

Marine... None.

Near term... Mcw
short term... Norcross
long term... Kredensor
aviation... Mcw norcross
marine... Mcw norcross

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Presque Isle, ME6 mi39 minNW 13 G 1910.00 miFair68°F37°F33%1012.3 hPa
Caribou, Caribou Municipal Airport, ME18 mi41 minWNW 10 G 1910.00 miFair67°F39°F36%1008.1 hPa

Wind History from PQI (wind in knots)
Last 24hrW5CalmW4N15
1 day agoW7SW3W3CalmS3S4N6S5CalmS4SW4S3CalmSW6CalmW5W8W6W6NW7
2 days agoW6SW3SW5NW6W6W6SW3W5W5S3S3CalmCalmS3SW4W5436SW5NW7W83SW4

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of Northeast    EDIT

Wind Forecast for Caribou, ME (16,3,4,5)
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Ground Weather Radar Station Caribou, ME
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weather_mapweather_map weather_map

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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 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 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.