Marine Weather and Tides
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.
|Sunrise 5:40AM||Sunset 8:32PM||Sunday May 19, 2019 6:33 AM EDT (10:33 UTC)||Moonrise 8:31PM||Moonset 5:30AM||Illumination 100%|
7 Day Forecast for Marine Location Near Hamlin, NYHourly EDIT Help
Area Discussion for - Buffalo, NY  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus61 kbuf 190902|
area forecast discussion
national weather service buffalo ny
502 am edt Sun may 19 2019
A warm front will move northeast across the region early today.
Much warmer and more humid weather will move into the region
with temperatures rising into the lower 80s away from the
lakeshores. There will be scattered showers and thunderstorms
today and tonight, but plenty of rain free time as well. A cold
front will cross the area Monday with gusty winds and a few more
showers. Much cooler air will move back into the region Monday
night and Tuesday behind this cold front.
Near term until 6 pm this evening
Surface warm front currently accelerating northward into the area.
Coverage of showers and thunderstorms has increased north of the
boundary under continued low level jet theta-e advection. As the
warm front continues to push northward this morning ongoing
convection will also push north and east.
The area will be entrenched within the well-mixed warm sector by mid
day. Ahead of an approaching cold front, moisture will continue to
advect northward with surface dewpoints rising well into the 60s
with temperatures reaching the lower 80s. A ribbon of instability
will develop (ml capes values to near 2000 j kg) with thunderstorms
likely developing across interior areas during the afternoon into
the early evening. The stage will be set for possible strong-
severe storms as an incoming shortwave provides sufficient lift
and increased deep layer shear (30-35 knots). Given the shear
and stability profiles, along with dry air aloft, strong,
damaging winds and hail are certainly possible. SPC day 1
outlook has most of the area in a slight risk.
Tonight, evening convection should slowly wane and push eastward.
However, with the main cold front still expected to approach the
area from the west overnight, additional showers and thunderstorms
will remain in the forecast.
Short term 6 pm this evening through Tuesday night
A cold front will track across western and north central ny Monday.
Mild conditions will start the day with temperatures and dewpoints
in the low 60s. Showers and a few thunderstorms are possible across
western ny in the morning as the front moves through and interacts
with any lingering lake breezes. The eastward moving front will give
little time for the rest of western ny to destabilize so coverage
will be low. East of lake ontario will see the best shot for
thunderstorms to develop ahead and along the front as surface based
cape increases to 500-1000 j kg and a strong wind field persists
Monday afternoon. An isolated strong to severe storm cant be ruled
out across lewis and eastern oswego counties before moving east of
the area. Temperatures will range from the low to mid 60's across
the niagara frontier and near lake erie to the low to mid 70's
southeast of lake ontario. Breezy southwest winds are expected
through the afternoon.
The front will move through the region by Monday evening. A
shortwave trough will track across the region Monday night while
high pressure moves in from the great lakes. Low to mid level
moisture will be trapped under a strengthening subsidence inversion
making for a cloudy night. Low temperatures will fall into the low
to mid 40's overnight.
High pressure will continue to build into the region Tuesday and
Tuesday night. Moisture will depart the region by Tuesday afternoon
making for a mostly sunny day. Cooler temperatures expected with
highs in the upper 50s to low 60s. Radiational cooling will likely
occur Tuesday night as the center of the high moves overhead. Fog
development is possible especially in valley locations. Patchy frost
is also possible across the north country.
High pressure will move east but be in control on Wednesday. Another
dry and sunny day is expected with highs in the low to mid 60's.
Long term Wednesday through Saturday
Ridging will develop over the southeast u.S. Through the long term
period. A deepening trough over the west coast and intermountain
west will initiate active weather over the western half of the
country. Active weather from the western trough will trek northeast
over the ridge resulting in mostly weak waves of low pressure to
pass over near the western and north central ny area for most of|
this period. Showery conditions are expected late Wednesday through
Temperatures will warm from the low to mid 60s on Wednesday to the
upper 60s and 70s for the rest of this period through the weekend.
Aviation 09z Sunday through Thursday
Warm front in vicinty is resulting in widely scattered showers and
thunderstorms near kroc and to mainly just south of kart. Will
continue to see llws at all sites except kjhw through shortly after
daybreak this morning. Some more scattered showers and
thunderstorms will develop later today as a much warmer and
humid airmass builds in. Rain chances will occur especially in
the morning into early afternoon at terminals in western ny,
including kiag, kbuf and kjhw, while the rain chances will
linger through much of the day farther east at kroc and kart.
More widespread showers and possible thunderstorms should occur
at all the terminals Sunday evening into Sunday night as a cold
front approaches western ny. Overall,VFR conditions will
prevail early this morning through Sunday night, with any
MVFR ifr restrictions being spotty brief in the heavier showers
Monday...VFR MVFR with scattered showers and gusty winds. Tuesday
and Wednesday... MainlyVFR.
Thursday... MainlyVFR with a chance of showers and thunderstorms.
A warm front will move northeast across the eastern great lakes this
morning, with relatively light winds expected through this evening.
A few scattered thunderstorms will cross the area through tonight.
Low pressure will then move across southern ontario and quebec late
tonight and Monday, with a trailing cold front crossing the eastern
great lakes Monday. Southwest winds will increase as the low passes
by to our north, likely producing southwest-west winds to at least
20 knots. The moderate winds will last into Monday night before
diminishing by Tuesday as high pressure builds into the great lakes.
Tides coastal flooding
A cold front will move across the eastern great lakes Monday as
low pressure moves east across ontario and quebec. Southwest
winds will increase Monday morning across lake ontario, then
become more westerly during the afternoon and evening following
the cold frontal passage. The increase in westerly winds will
bring higher waves on lake ontario, combining with very high
lake levels to bring an increased risk of lakeshore flooding on
the east half of lake ontario.
For monroe, orleans, and niagara counties, the westerly winds
will be shore parallel Monday and Monday night, which will
likely not increase lakeshore flooding and erosion as much as
the eastern portion of the lake.
Winds will become more northwest late Monday night and Tuesday.
Model guidance shows some variation on wind speeds by Tuesday.
The GFS is strongest, and would bring lakeshore flood potential
to the entire south shore of the lake. The NAM and gem are
weaker, and would keep winds and wave action below the criteria
for an increase in lakeshore flooding. Given the uncertainty,
will continue to mention this period in the hwo for now.
Buf watches warnings advisories
Ny... Lakeshore flood watch from Monday morning through Tuesday
morning for nyz007.
Lakeshore flood watch from Monday afternoon through Tuesday
morning for nyz004>006.
near term... Tma
short term... Hsk
long term... Hsk levan
aviation... Ar hitchcock jla
marine... Hitchcock tma
tides coastal flooding... Hitchcock hsk
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|
|RCRN6 - 9052058 - Rochester, NY||23 mi||40 min||68°F||1009.4 hPa|
|RPRN6 - Rochester, NY||24 mi||34 min||SSW 12 G 17||69°F|
|OLCN6 - Olcott Harbor, NY||37 mi||34 min||W 5.1 G 7||47°F||1011.9 hPa (+0.4)|
|45012 - Lake Ontario Buoy - 20NM North Northeast of Rochester, NY||38 mi||34 min||SSE 7.8 G 12||45°F||37°F||1010.9 hPa||42°F|
Wind History for Buffalo, NY(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Rochester, Greater Rochester International Airport, NY||26 mi||40 min||SW 7||10.00 mi||Mostly Cloudy||65°F||59°F||81%||1011.5 hPa|
Wind History from ROC (wind in knots)
|1 day ago||W||W||W||NW||N||NW||NW||NW||NW|
|2 days ago||Calm||E||NE||E||SW||SW||NE||NE||NE||N||NE||E||E||SE||SE||SE||S||S||S||SW||SW||SW||SW||W |
EDIT Weekend mode (on/off) (on/off)  Help
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 Buffalo, NY (6,6,7,8)(on/off)  Help
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