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Upstate/Eastern New York


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23 minutes ago, wolfie09 said:

Hard to say at this juncture..

I'd prepare for at least scattered showers but probably not a total washout..

Gfs 12z for example has on and off showers from Sunday into tues morning but really doesn't add up to a whole lot..

qpf_acc.us_ne - 2021-06-23T121440.651.png

Showers and storms do return Thursday/Friday though..

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2 minutes ago, wolfie09 said:

On the other hand you have the Canadian which dumps 2"-6" over kbuf CWA, most of this in the Monday-wed time frame..Some scattered stuff over the weekend.. Still pretty far out..

qpf_acc.us_ne - 2021-06-23T131900.290.png

Those kinds of totals would require a stalled, multi-wave situation. I don't see that happening - especially over such a large area.

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Depends on the strength and positioning of the WAR.. Prevents it from moving much, actually some guidance has hinted at pushing the boundary back west..

Thenceforth, the forecast details will be heavily dictated by the
position of the frontal boundary, which in turn will be influenced
by the balance between a building ridge over the western Atlantic
and multiple additional waves of low pressure tracking across the
Great Lakes and southern Canada. At this point the medium range
guidance remains at least somewhat at odds as to which of these
features will have more influence, though there does seem to be at
least some semblance of a trend toward the western Atlantic ridge
eventually becoming more dominant over time 

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icon_mslp_pcpn_frzn_us_52 (2).png

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A nearly stalled frontal boundary across the central Great Lakes on
Friday will very slowly make its way east through the weekend. This
is due to the flow aloft, with an upper level trough forecast to dig
across the Upper Great Lakes. The result will be several waves of
low pressure which will track along the nearly stalled boundary.
These will remain to our west Friday and probably Friday night,
which will likely keep the region rain-free. After this, there will
be a persistent risk that a convectively driven wave will clip our
area and bring a chance of showers and possibly a thunderstorm. The
best chances will be across northern and western portions of the
cwa, however it`s important to note that there will be plenty of
rain-free time between any waves that clip the area. The forecast
leans on model consensus, since timing convectively driven waves
this far off is uncertain.

Otherwise, it will generally hot during the period, with high
temperatures mainly in the 80s. It will become more humid with time,
with dew points rising from the 50s on Friday to the 60s by Sunday
as the boundary gets progressively closer. A persistent southerly
breeze will result in downslope warming across the lake plains,
where overnight lows will only be around 70s, and where the warmest
daytime highs will be located.

 

A holding pattern in the mid-level pattern will keep the forecast
relatively similar from day to day for the first few days of the new
work week. The negatively tilted mid-level trough spanning across
the Upper Great Lakes to the Central Plains from earlier in the
weekend will have subtly weakened and shifted to the east by Sunday
night. The trough will then remain relatively in place through the
first half of the week. Meanwhile, multiple waves will rotate
through the overall trough which will support showers and afternoon
thunderstorms each day, though it is important to note that there
will be some dry periods from time to time. The best locations will
remain across the northern and western portions of the CWA. Due to
the uncertainty between the different model runs it is hard to pin
point the exact timing and locations of convection and therefore the
forecast resembles a consensus of the models.
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8 hours ago, BuffaloWeather said:

Freezing up here in the 30s

38° at my house this morning after 36° yesterday morning.  Saw a little frost on a roof that must be in a prime radiational cooling area. 

I’m taking advantage of this nice sunny and cooler weather to replace the last part of my house roof this afternoon, tomorrow, and probably into Saturday.  I also just got Sirius radio set up (Father’s Day gift) for the first time in +/-10 years!  That will make it much more enjoyable! 

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The majority of the near term forecast will be determined by the
evolution of the MCS and subsequent remnant MCV that is
currently advancing northeastward over western Lower Michigan.
The current hi-res models, especially the FV3, have the
convective complex well depicted, though a bit farther south
than radar and satellite currently are verifying. Given the
trajectory, this bring the MCS toward southern Lake Huron by the
end of day today with convective activity rapidly dying around
it by that time. The remnant vortex then should advance toward
Ottawa overnight, leaving the Niagara Frontier and southern
shore of Lake Ontario on the periphery of its rain shield. This
yields a rather stark PoP gradient between central Lake Ontario
and the Southern Tier with decidedly higher PoPs to the north.
In fact, there may not be much shower activity that really
manifests much south of I-90, however low end PoPs remain for
that area especially Saturday morning as low-level moisture in
convergent flow into the MCV will cross the area during that
time frame.
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Some people have the nerve to say global warming isn't real. The west coast is done for. The freezing level was higher than all the mountains out there. Glaciers are essentially completely gone in the southern US. The mountain tops with snow all year in the west are likely gone soon as well. Over 100 degrees in the northern cascades...literally insane. It would be like Buffalo hitting 110 degrees this summer when the highest we've hit is 99.

image.png.a251168f048f7a4c79ffb7882f27decc.png

 

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Clouds and showers should keep us on the"cooler" side today, I think forecast high is 80ish..

It will also allow
for a bit drier air to encroach from the south. This will mean
party sunny skies returning over the Southern Tier and possibly
as far north as I-90. Where the clouds linger east of Lake
Ontario, temperatures will be held back today, however as you
move progressively farther south in the area with increasing
sunshine, conditions will get increasingly sultry. Additionally,
decent southerly flow will result in efficient vertical mixing,
which should aide in making the mercury jump this afternoon
south of I-90. This will result in localized areas seeing heat
index values jump toward 90F with the residual humidity from
overnight showers.
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5 hours ago, BuffaloWeather said:

Some people have the nerve to say global warming isn't real. The west coast is done for. The freezing level was higher than all the mountains out there. Glaciers are essentially completely gone in the southern US. The mountain tops with snow all year in the west are likely gone soon as well. Over 100 degrees in the northern cascades...literally insane. It would be like Buffalo hitting 110 degrees this summer when the highest we've hit is 99.

image.png.a251168f048f7a4c79ffb7882f27decc.png

 

It's nuts, but then again we've been warned about this for decades now. Heading to Iceland next week for the 2nd time in 5 years. Should probably enjoy those glaciers before they're gone too. 

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This is what happens when the sun comes out lol 7° higher than forecasted..

Sizzlecuse hit 90°, well on its way to an official heat wave..

Heat advisories also issued..

.HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT SUNDAY...

* WHAT...Heat index values of 95 to 99 degrees expected.

* WHERE...Monroe, Wayne, Northern Cayuga, Oswego, Genesee,
  Livingston, and Ontario counties.

* WHEN...From 11 AM to 8 PM EDT Sunday.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

Screenshot_20210626-163935.png

 

Screenshot_20210626-163700.png

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Sunday night a negatively tilted trough placed over the Upper Great
Lakes and the Northern Plains will have its eastern most edge just
west of the state. All the while, high pressure will be anchored
over the Mid-Atlantic coast with its northwestern edge also aligned
over the area. This scenario will likely be the stagnant player
throughout the first half of the work week, before the trough
amplifies and and digs into the Central and Lower Great Lakes
Tuesday night. Therefore with this pattern, south/southwesterly
winds across the area will keep filtering in the Gulf of Mexico heat
and humidity, thus the heat from Sunday will linger into Monday with
highs mostly in the mid to upper 80s, with the exception of the
Northern Finger Lakes region where some low 90 degree readings are
expected. That being said, with the heat and humidity, heat indices
may meet heat advisory criteria Monday. Otherwise, temperatures will
begin to cool Tuesday as the trough aloft advances its associated
boundary slightly east, with highs ranging in the 80s and a few 90
degree readings possible in the Finger Lakes region.

Otherwise outside of the heat, chances for showers and thunderstorms
will mainly be diurnally driven each day, with the best chances
occuring inland on the lake breeze boundaries. Then Tuesday night, a
shortwave will ripple through the longwave trough, which will push
the stationary boundary (northwest of the region) across the state
which will increase PoPs from northwest to southeast.

&&

.LONG TERM /WEDNESDAY THROUGH SATURDAY/...
Broad upper level ridging centered off the Delmarva coastline at the
start of Wednesday will slowly weaken and settle a bit further
southeastward through Saturday...while modest upper level troughing
over Central Canada also digs southeastward. At the surface...this
will allow an ill-defined frontal boundary to gradually sag across
the Great Lakes and into our region...with one or more weak waves of
low pressure potentially rippling northeastward along this boundary.

As a result...our weather will generally become more unsettled with
time as we push through the latter half of the work week. This will
particularly be the case during each afternoon and evening as any
synoptic and mesoscale boundaries interact with burgeoning diurnal
instability and lead to the development of diurnally-driven
convection...though any passing weak surface waves (nearly
impossible to time this far out in advance) could also lead to
periods of increased precip coverage at night should these actually
materialize. Otherwise...we can expect fairly humid conditions to
remain in place out through at least Thursday...albeit with a
general downward day-to-day trend in temperatures as heights aloft
fall and our airmass cools.

Later on in the period...the medium range guidance continues to flop
around quite a bit regarding the exact evolution of the above
mentioned upper level trough...with solutions ranging from a much
more progressive and well-defined feature (ala the latest GFS) to
a much weaker feature that eventually cuts off into a closed low
well to our west next weekend. Given the resulting degree of
uncertainty in the large-scale pattern...really have no choice but
to maintain at least some semblance of chance PoPs into the start of
the Independence Day weekend...along with a blend of guidance
temps.
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7 hours ago, BuffaloWeather said:

Some people have the nerve to say global warming isn't real. The west coast is done for. The freezing level was higher than all the mountains out there. Glaciers are essentially completely gone in the southern US. The mountain tops with snow all year in the west are likely gone soon as well. Over 100 degrees in the northern cascades...literally insane. It would be like Buffalo hitting 110 degrees this summer when the highest we've hit is 99.

image.png.a251168f048f7a4c79ffb7882f27decc.png

 

It's boiling out here. I moved here to western Washington a bit over 5 years ago from NYC and I went for a brief 2 mile walk around noon today when it was 90f and I swear I haven't sweated that much since the last time I was in NYC lol. That said, I was at Mt. Rainier 2 days ago and still couldn't go on trails up in the Paradise area cause there was still too much snow. This whole week looks terrible in terms of temps but the next few days will be the worst of it. Just want it back into the 60s and 70s like normal already.

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