Sunday, September23, 2018 L-36.com


Marine Weather and Tides
Presque Isle, ME

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9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 7:21AMSunset 7:29PM Sunday September 23, 2018 8:52 AM ADT (11:52 UTC) Moonrise 6:15PMMoonset 4:28AM Illumination 98% Phase: Waxing Gibbous; Moon at 13 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 231027
afdcar
area forecast discussion
national weather service caribou me
627 am edt Sun sep 23 2018

Synopsis
A cold front will cross the region today. Cool canadian high
pressure will build in behind the front tonight and Monday then
move east Tuesday. Low pressure from the great lakes will
approach on Wednesday.

Near term through tonight
625 am update... Have cancelled the frost advisory at this
point as temperatures will begin rising shortly after daybreak.

Mid level clouds associated with the approaching cold front are
already moving into far northern areas at this hour. Only minor
tweaks to temps dew points at this time.

Previous discussion
a cold front approaching from southern quebec province will
cross northern areas through mid morning and move off the
downeast coast early tonight. This front marks the leading edge
of a cooler air mass. H850 temperatures will fall to around -5c
by daybreak Monday across the far north and to around 0c at the
downeast coast. At the same time, h925 temperatures fall to
around -2c across the north and around +2c at the coast.

Moisture is limited with the front but there is the chance of a
shower, mainly across the far north later this morning and
continuing into early afternoon. QPF amounts will only be a
couple hundreths on an inch at best. Highs today will range
from the low to mid 50s north and low to mid 60s downeast.

Skies will become mainly clear across the north this evening and
then late tonight across downeast, as a large canadian high
pressure system builds toward the region from quebec. Expect a
widespread hard freeze across the north as lows will fall into
the low to mid 20s. With the frost freeze program having ended
there, no headlines will be included for tonight, but we will
mention widespread frost in forecast products. Across interior
downeast areas, expect areas of frost late tonight, with lows
expected to fall into the low to mid 30s. Along the coast, lows
will range from the mid to upper 30s, with patchy frost
expected. The one mitigating factor for frost downeast tonight
may be that the high will still be centered well to our
northwest by early Monday morning. This may keep enough of a
gradient across that region for winds to completely decouple.

With current frost advisory headlines up through early this
morning, will not issue any frost freeze products for tonight
quite yet, and re-evaluate the need with subsequent forecast
updates later today.

Short term Monday through Tuesday night
Can hi pres will linger ovr the fa Mon thru Mon ngt providing
fair wx alg with one more cool day and ngt and more frost
potential by late Mon ngt. Low temps by erly Tue morn, however,
do not look quite as as low as Mon morn due to warmer temps at
the subsidence invsn lvl and the possibility of sct-bkn hi
cldnss.

Otherwise, Tue will begin fair, with increasing cldnss by aftn
with hi temps recovering to near 60 deg f. Warm advcn shwrs rn
will then advc into the fa from the wsw late in the day Tue and
tue ngt with much breezy srly winds and milder ovrngt lows.

Long term Wednesday through Saturday
Intermittent shwrs rn will cont Wed into Wed eve as the main low
from the great lks tracks NE across the st lawrence vly of qb
prov, bringing a cold front across the fa late Wed ngt and erly
thu morn. With pws reaching or just exceeding 1.50 inches, we
cannot rule out lcly hvy rnfl and even isold tstms prior to the
cold front Wed aftn eve, but these elements are a little early
to assign to the fcst attm. Total rnfl from this event will
generally range from 0.50 to 1.00 inch with locally hvy rnfl.

Max pops with this event are currently being shown to be arnd 90
percent.

Fair and drier conditions follow for Thu and Thu ngt with near
seasonable temps. Cldnss increases again for Fri as another cold
front and associated S WV alf apchs from the midwest. The next
chc of shwrs with this system will be late Fri into Sat morn,
with longer range models showing scenarios ranging from a quick
band of shwrs crossing the rgn alg a cold front, to more
organized rnfl associated with a WV of low pres forming alg the
front. Given uncertainties, we capped MAX pops t the hi chc
category for now.

Aviation 12z Sunday through Thursday
Near term:VFR through tonight.

Short to long term:VFR conditions are xpctd Mon thru Tue across
our TAF sites, with clgs and or vsbys lowering to MVFR ifr tue
ngt into Wed with shwrs rn patchy fog and then contg into wed
eve. Conditons then improve toVFR NW to SE across our TAF sites
late Wed ngt into Thu morn and cont thru the remainder of the
day.

Marine
Near term: winds seas will remain below SCA levels today and
then increase to SCA levels in the wake of a cold front.

Therefore, an SCA has been issued beginning late tonight and
continuing into early Monday morning.

Short to long term: marginal SCA winds and seas may linger into
the mid morn mon, then subside below SCA thresholds late mon
morn with no hdlns contg Mon ngt and tue. Winds and seas then
build back to SCA conditions with a srly wind fetch Tue ngt and
cont so Wed thru Wed ngt. Kept close to ww3 WV guidance for fcst
wv hts with short WV pds of 4 to 7 sec dominating thru these
ptns of the fcst.

Car watches warnings advisories
Me... None.

Marine... Small craft advisory from midnight tonight to 10 am edt Monday
for anz050>052.

Near term... Duda
short term... Vjn
long term... Vjn
aviation... Duda vjn
marine... Duda vjn


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Presque Isle, ME6 mi56 minSSW 710.00 miFair39°F39°F100%1026.1 hPa
Caribou, Caribou Municipal Airport, ME18 mi58 minSSW 310.00 miFair40°F36°F86%1021.3 hPa

Wind History from PQI (wind in knots)
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Last 24hrNW16
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W8SW34W3CalmCalmNE83CalmCalmCalmCalmSW4SW7
1 day ago3S6SE8SE9SE9S11S11
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2 days agoCalmCalmE35S9S7SW74SW4W4SW3CalmCalmCalmCalmCalmCalm3CalmCalmCalmCalmCalmCalm

Tide / Current Tables for
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Weather Map and Satellite Images
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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 Caribou, ME (7,2,3,4)
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Ground Weather Radar Station Caribou, 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.