Marine Weather and Tides
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen
|Sunrise 6:00AM||Sunset 7:53PM||Tuesday August 20, 2019 8:43 PM EDT (00:43 UTC)||Moonrise 10:27PM||Moonset 10:48AM||Illumination 71%|
7 Day Forecast for Marine Location Near Plattsburgh, NYHourly EDIT Help
Area Discussion for - Burlington, VT  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus61 kbtv 202351|
area forecast discussion
national weather service burlington vt
751 pm edt Tue aug 20 2019
Showers and thunderstorms return Wednesday afternoon with the
potential for some organized storms capable of gusty winds,
locally heavy rainfall, and frequent lightning. A cold front
will push through Thursday morning, followed by high pressure
building in and a return to cooler and drier weather for the end
of the week.
Near term through Wednesday night
As of 736 pm edt Tuesday... The forecast remains nearly spot on
as of early evening. I did blend current hourly temperatures and
dewpoints into our extant forecast later this evening, and
incorporated some newer model rh data to tweak arrival time of
mid upper level clouds later tonight. All and all these were
essentially noise-level adjustments. Have a great evening.
period of quiet weather continues tonight as high pressure
departs the region to the east. Light southerly winds will
continue overnight, which will keep overnight temperatures
relatively warm despite the initial clear skies. Clouds will
spread over the region after midnight as a warm front approaches
the area. Overnight lows will be in the upper 50s to mid 60s.
Interesting setup coming together for Wednesday with several
ingredients present for the development of some strong to severe
thunderstorms. However, as has been the case most of the summer
for the north country, several factors also working against the
threat... So challenging forecast to weigh out both sides with
the result being a conditional severe threat for tomorrow. In
the upper levels, synoptic picture features an upper-level low
digging upstream over the northern great lakes region during the
day Wednesday with southwesterly flow increasing over the btv
cwa ahead of the system. Models continue to indicate a shortwave
will move through eastern ny and into western new england
during the early afternoon hours on Wednesday... Which will be a
key player in deep convective initiation. Meanwhile, surface
temperatures and dewpoints will increase quickly on
strengthening southwesterly flow just ahead of the wave. A warm
front will lift through southern and central new england during
the morning hours, which will spread some cloud cover over much
of vermont and into eastern new york... Limiting development of
instability. Thus, greatest axis of instability is progged to
develop over the saint lawrence valley (1500+ j kg), with degree
of destabilization further east still in question. However if
vermont is able to destabilize after morning cloud cover,
showers and thunderstorms are likely to develop in the early
afternoon ahead of the upper wave and along a prefrontal trough.
Severe threat: best deep layer shear will be removed to the
northwest closer to the heart of the upper trough, but still
looking at 25-35 kts 0-6 km shear in our forecast area... Supportive
of organized strong to severe convection with organized
multicells being the primary convective mode. Forecast
hodographs indicating 0-3 km SRH values of over 250 m2 s2 over
southern vermont... So the potential for rotating sustained
updrafts will be relatively high with any storms that develop in
southern into central vermont. Low and mid-level shear and
helicity values decrease further north through the remainder of
the cwa. Lapse rates are not overly impressive, in fact latest
model runs have trended back on the amount of dry air available
in the mid- levels, instead indicating near moist adiabatic
lapse rates. This does work somewhat against the severe wind
threat, but overall after evaluating all the factors still
seeing enough signals for some storms with potentially damaging
gusty winds, so have included mention of this threats in the
Rainfall: with regards to rainfall amounts, storms will be
capable of locally heavy rainfall given pw values > 1.75 inches
and deep warm cloud layers of upwards of 12k ft. However,
corfidi vectors between 15 and 25 kts suggest storms will be
moving fast enough to not pose any widespread flooding threats.|
Total QPF between Wednesday morning and Thursday morning is
generally in the quarter to two thirds inch range, with locally
amounts around an inch possible within any thunderstorms.
Storms and showers will dissipate Wednesday night as a cold
front moves through closer to dawn. Could still get a rumble of
thunder or two overnight, but main show will be over shortly
after sunset. Wednesday night lows will be in the mid to upper
Short term Thursday through Thursday night
As of 430 pm edt Tuesday... Cold front will push east of our
region early Thursday and chance for showers will decrease
through the day lingering longest in eastern vt. Winds aloft
will turn out of the west advecting in lower dewpoints but
better cold air advection does not arrive until overnight
Thursday night. Maximum temperatures will range from the lower
70s to lower 80s Thursday afternoon. Timing of the front
unfavorable for thunderstorm development and not a lot of
moisture with this feature. Surface high pressure will begin to
ridge into the area Thursday night, temperatures will drop into
the upper 40s to upper 50s.
Long term Friday through Tuesday
As of 430 pm edt Tuesday... Still looks quiet for the extended
portion of the forecast, mainly surface high pressure dominating
the weather pattern from Friday through early next week.
Lingering upper level trough still pushing across the area
Friday into Saturday, though mainly just clouds expected with
the trough. Next real chance for showers not until Monday night
into Tuesday when next frontal system approaches. Temperatures
will trend warmer after upper trough finally pushes east of the
area Saturday night.
Aviation 00z Wednesday through Sunday
Through 00z Thursday...VFR through 12z as high pressure moves
east of the region. High clouds will overspread the region
after 06z as a warm front moves through, which should limit fog
potential overnight. Will see clouds lowering and some showers
develop after 12z especially kmss krut. Some thunderstorms
possible after 16z especially from kslk eastward across the
champlain valley including kbtv around 18z and the rest of vt
after 18z and may be out of the forecast region by 23z. Have
left mention of thunderstorms out until timing and location get
more specific. Any thunderstorms after 16z may be strong with
brief gusty winds, llws, and ifr possible.
Wednesday night:VFR. Chance shra, slight chance tsra early.
Thursday:VFR. Slight chance shra.
Thursday night:VFR. No sig wx.
Friday:VFR. No sig wx.
Friday night:VFR. No sig wx.
Saturday: mainlyVFR, with areas MVFR possible. No sig wx.
Saturday night:VFR. No sig wx.
Sunday:VFR. No sig wx.
Btv watches warnings advisories
near term... Duell jmg
short term... Neiles
long term... Neiles
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|45178||6 mi||43 min||71°F||73°F||1015.8 hPa (+0.0)|
|45166||12 mi||43 min||SW 5.8 G 7.8||77°F||75°F||1 ft||63°F|
|45188||41 mi||58 min||73°F|
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Plattsburgh International Airport , NY||3 mi||1.8 hrs||SSE 4||10.00 mi||Fair||77°F||60°F||56%||1014.8 hPa|
|Burlington, Burlington International Airport, VT||21 mi||1.8 hrs||S 5||10.00 mi||Fair||81°F||53°F||38%||1015.3 hPa|
Link to 5 minute data for KPBG
Wind History from PBG (wind in knots)
|1 day ago||E||Calm||Calm||SW||S||S||Calm||S||S||S||SE||S||SW||Calm|
|2 days ago||S||SW||Calm||Calm||Calm||S||Calm||W||SW||Calm||S|
EDIT Weekend mode (on/off) (on/off)  Help One Week of Data
EDIT (on/off)  Help
Weather Map and Satellite Images(on/off)  HelpWeather Map
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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Burlington, VT (20,4,5,8)(on/off)  Help
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