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January 4-6 Coastal Bomb Observations/Nowcast


Baroclinic Zone

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Take them up

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
10 AM Update...
Strong bombogenesis occurring currently with the low already at
957 mb. Thundersnow currently occurring over CT and NY. This
morning`s guidance and the character of the system on satellite
as well as wind profiles have supported upgrading the entire
coast to blizzard as well as as far west as the Nashua/
Manchester corridor and adjacent inland areas such as York
County. Visibilities will be at times a quarter mile with winds
AOA 35 mph over much of the two states...but it will be much
harder to satisfy the 3 hr requirement for a blizzard farther
inland. Storm force warnings over the waters were also upgraded
to hurricane force for all but the bays.

Snowfall totals were upped quite a bit and added more detail to
QPF with mountain effects...yielding snowfall totals could be
in the double digits for most of the area. This still may be
underdone for the western Maine mountains...but am not confident
on going higher with neighbors currently in good agreement.
Strong downsloping will cut off snow for western NH rather
quickly in some areas and this will limit snowfall totals there.
However very strong dynamics and kinematic profiles will
support 2 to maybe even 4" an hour snowfall totals for a few
hours. Blowing snow will be a hazard all the way to the Canadian
border.

 

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1 minute ago, wxsniss said:

Boston area to north shore has been in relative subsidence... in between fronto band now near I91 and CF in southeast in past hour, but looks like heavier echoes ticking north.

 

Yeah this has been meh so far but radar says it's about to be a lot more exciting here, hopefully we can keep the good stuff around for a while.

I moved in May so no longer have the panoramic view that makes it easy to guess visibilities, but probably somewhere in the SN range. 26f.

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1 minute ago, dryslot said:

Take them up


.NEAR TERM /UNTIL 6 PM THIS EVENING/...
10 AM Update...
Strong bombogenesis occurring currently with the low already at
957 mb. Thundersnow currently occurring over CT and NY. This
morning`s guidance and the character of the system on satellite
as well as wind profiles have supported upgrading the entire
coast to blizzard as well as as far west as the Nashua/
Manchester corridor and adjacent inland areas such as York
County. Visibilities will be at times a quarter mile with winds
AOA 35 mph over much of the two states...but it will be much
harder to satisfy the 3 hr requirement for a blizzard farther
inland. Storm force warnings over the waters were also upgraded
to hurricane force for all but the bays.

Snowfall totals were upped quite a bit and added more detail to
QPF with mountain effects...yielding snowfall totals could be
in the double digits for most of the area. This still may be
underdone for the western Maine mountains...but am not confident
on going higher with neighbors currently in good agreement.
Strong downsloping will cut off snow for western NH rather
quickly in some areas and this will limit snowfall totals there.
However very strong dynamics and kinematic profiles will
support 2 to maybe even 4" an hour snowfall totals for a few
hours. Blowing snow will be a hazard all the way to the Canadian
border.

 

Sweet!

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Blizzard warn expanded a little over eastern zones ... but again, it's semantics ...  Winter Storm warning with heavily worded blowing and drifting suffices entry level into blizzard criteria so ... whatever.

I've had 1/4 mi vis for ~ two hours and forty five minutes so ... if going by that metric I should achieve here in the next little bit. 

4.5"    ; 17F S+ 

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13 minutes ago, weatherwiz said:

Not sure how to do gif's but this is a beauty to watch

http://weather.cod.edu/satrad/exper/?parms=continental-conus-08-200-1-100

At the bottom there is a Save button and then you go from there.....problem I found on that high res GOES 16 stuff is the file is massive.....IDK maybe there is a way to embed it somehow

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34 minutes ago, nutmegfriar said:

To the reporters broadcasting live in the elements...there is no need to be absolutely breathless when you see a snow plow.  It borders on child-like.

I was watching WCVB this morning.  Some poor reporter on the Cape holding a Kestrel reporting the winds are ferocious, as high as 26 mph!!

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1 minute ago, ice1972 said:

At the bottom there is a Save button and then you go from there.....problem I found on that high res GOES 16 stuff is the file is massive.....IDK maybe there is a way to embed it somehow

hmm I'll play around with it sometime. If the file is massive probably just can't do a direct upload. 

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