Saturday, May27, 2017

Marine Weather and Tides
Chazy, NY

Version 3.4
What's New / NOTES
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 5:12AMSunset 8:30PM Saturday May 27, 2017 5:53 AM EDT (09:53 UTC) Moonrise 7:12AMMoonset 10:31PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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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SLZ024 Saint Lawrence River From Cape Vincent To Saint Regis 422 Am Edt Sat May 27 2017
Today..Light and variable winds. Patchy fog early.
Tonight..Light and variable winds. Partly to mostly cloudy.
Sunday..Light and variable winds. Mostly Sunny.
Sunday night..East winds 10 knots or less becoming southeast 10 to 15 knots. A chance of showers and Thunderstorms in the evening...then showers with a chance of Thunderstorms overnight.
Monday..South winds 5 to 15 knots. Showers with a chance of Thunderstorms during the day...then a chance of showers and Thunderstorms Monday night.
Tuesday..Southwest winds 5 to 15 knots. A chance of showers.
Wednesday..Southwest winds 10 to 15 knots. A chance of showers and Thunderstorms during the day...then a chance of showers Wednesday night. Winds and waves higher in and near Thunderstorms.

7 Day Forecast for Marine Location Near Chazy, NY
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location: 44.83, -73.39     debug

Area Discussion for - Burlington, VT
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Fxus61 kbtv 270737
area forecast discussion
national weather service burlington vt
337 am edt Sat may 27 2017

Memorial day weekend looks to start out great with dry weather
and fair conditions expected for Saturday and Sunday along with
a warming trend.The back end of the weekend will see showers
will return to the area late Sunday night into memorial day. A
pattern change will see slightly cooler temperatures and a
chance for showers almost each day this week.

Near term through Sunday
As of 333 am edt Saturday... High pressure builds into the region
for most of the memorial day weekend. This will lead to a
warming and drying trend for today into Sunday. Lingering clouds
will remain around through mid-afternoon today before more
discernible clearing happens overnight into Sunday morning. The
dry and warmer weather continues on Sunday as the high pressure
ridge crests over the area bringing another day of fair
conditions. High temperatures for Saturday will be in the upper
60s to low 70s while overnight lows will be in the mid 40s to
low 50s. With Sunday's decreased cloud cover and weak southerly
flow, high temperatures mid to upper 70s with some valley
locations possibly touching 80.

Short term Sunday night through Monday
As of 328 pm edt Friday... Will see another pattern change
beginning Sunday night as 700mb shortwave ridge translates ewd into
the gulf of maine and broad closed mid-tropospheric low shifts
slowly ewd across the great lakes region and ontario. Onset of
mid-level height falls and developing cyclonic flow aloft occurs
during Sunday night, though the 00z ECMWF is about 6 hrs slower
than 00z GFS with arrival of shortwave trough vorticity max
embedded in swly flow moving into the north country. Have gone
with more consistent GFS timing for now, which means likely pops
(70%) for showers into NRN ny during the pre-dawn hrs Monday,
with chance pops (30-50%) across vt. It appears that best
synoptic QG forcing will occur during Monday morning, with
widespread shower activity associated with strongest 850mb waa.

Overall QPF generally 0.25" - 0.50". Should see partial clearing
occurring later in the day Monday as 850mb warm front shifts
north and east of the region. Can't rule out a few additional
late day showers with weak surface based instability possible.

Have included slight chance of thunderstorms late in the
afternoon for the st. Lawrence valley area and s-central vt. 00z
gfs SBCAPE values reach 600 j kg at kmss at 21z mon. In terms
of temperatures, the increasing clouds will keep overnight lows
mild Sunday night, generally in the low-mid 50s (except upper
50s in the st. Lawrence valley). There is an increase in s-sw
gradient flow, reaching 10-20 mph after midnight in the
champlain and st. Lawrence valleys. This will also help with
low-level mixing, keeping temperatures from dropping
significantly. A lake wind advisory may ultimately be needed for
lake champlain later Sunday night into Monday morning
associated with this increase in southerly gradient winds. With
only partial clearing expected later Monday, high temperatures
will range from the low-mid 60s across central ERN vt, the upr
60s in the champlain valley, and mid 60s (adirondacks) to lower
70s (st. Lawrence valley) across northern ny.

Long term Monday night through Friday
As of 328 pm edt Friday... Large mid-upper level low pressure
system will be our controlling weather feature through much of
the long-term period. This vertically stacked system will
drift slowly ewd from the NRN great lakes ontario Monday night,
ewd into WRN quebec by Thursday. Northern ny and new england
will be embedded in associated cyclonic flow, with several
shortwave troughs crossing the region from wsw-ene Tuesday
through Friday. It appears the best chance for shower activity
will generally be during afternoon periods, with combination of
relatively steep mid-level lapse rates and surface heating
resulting in shallow instability and shower development. Have
indicated likely pops Tuesday afternoon, followed by 30-50%
chances for Wed Thu Fri afternoon. Temperatures will generally
reach the low-mid 70s on Tuesday, followed by upr 60s to lower
70s Wednesday, and mid-upr 60s on Thursday as thermal trough
aloft gradually shifts ewd into our region. Min temperatures
will range from the upr 40s to mid 50s... Close to seasonal
averages for late may.

Aviation 08z Saturday through Wednesday
Through 06z Sunday... .Mix of conditions around the area
overnight with stations ranging fromVFR down to lifr. Kmss is
on the bottom end with lifr vis cig lasting until about 13z
before improving toVFR. Kslk kmpv krut are currently MVFR but
could see periods of ifr through 13z before also improving to
vfr. Kbtv kpbg are both currentlyVFR but may experience some
brief MVFR conditions before sunrise.

Winds generally out of the NW but remaining light overnight.

Wind speeds will pick up to 5-10 knots during the day.


Sunday:VFR. No sig wx.

Sunday night:VFR. Breezy. Likely shra.

Memorial day: MVFR. Breezy. Likely shra... Tsra.

Monday night:VFR. Chance shra.

Tuesday:VFR. Likely shra... Tsra.

Tuesday night:VFR. Chance shra.

Wednesday:VFR. Chance shra... Tsra.

Btv watches warnings advisories
Vt... None.

Ny... None.

Synopsis... Mv
near term... Mv
short term... Banacos
long term... Banacos
aviation... Kgm mv

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45166 8 mi39 min N 3.9 G 5.8 53°F 53°F49°F

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Plattsburgh International Airport , NY13 mi61 minN 010.00 miPartly Cloudy49°F46°F93%1011.5 hPa
Franklin County State Airport, VT17 mi59 minN 010.00 miFair47°F46°F100%1011.5 hPa

Wind History from PBG (wind in knots)
Last 24hrN3NW6N7N8N9N10N10N9N13N12N11NW11NW10N9NW10NW5NW5W5NW5W4W5W5CalmCalm
1 day agoCalmCalmCalmSE4SE6SE6S5CalmSE9S6S7SE7E5SE4SE3CalmCalmCalmNE5NE6NW6N5N4NW4
2 days agoCalmCalmCalmCalmCalmE3NE4NE4E5E4NE4NE5NE5NE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

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 Burlington, VT (5,6,7,8)
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Ground Weather Radar Station Burlington, VT
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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.