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Convective Thread


weatherwiz

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4 hours ago, weatherwiz said:

yeah Thursday is intriguing.  Have to see if we do get that plume of steeper lapse rates to move overhead.  Even with meh lapse rates though dewpoints looks to be quite juicy with good moisture pooling and shear doesn't look too bad either.  Could see a few supercells Thursday afternoon

if we don't back door...  

that set up looks tenuous to me;  on-going and or residual convection happening through the N -side of that boundary and it will come south 

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11 minutes ago, Typhoon Tip said:

if we don't back door...  

that set up looks tenuous to me;  on-going and or residual convection happening through the N -side of that boundary and it will come south 

We might be effed up here. That warm front does not look like it wants to get back up this way after it sneaks south tonight. 

But I could see it getting back into central/southern NH before the cold front arrives.

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10 minutes ago, Typhoon Tip said:

if we don't back door...  

that set up looks tenuous to me;  on-going and or residual convection happening through the N -side of that boundary and it will come south 

it sure will be close.  Might actually have better potential down here in CT lol.  It will be quite the difference in air masses behind/ahead of the front lol.  The NAM also has a much stronger speed maxima moving overhead Thursday too while the GFS has nada.  NAMNEST has a nice what looks to be a broken line of storms pushing through southern MA and CT

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9 minutes ago, Damage In Tolland said:

You door . South of Pike doesn't 

it would be nice if the atmosphere worked by the physical laws of the world-according-to-Garp, yes...

no, if it starts moving, ...it doesn't stop. 

that's the rub of this geography east of ALB-RUT line...it's a natural "tuck" topography and it needs less momentum to "fill in" from the N/NE than just about anywhere else on the planet (sarcasm but true in way).  

can't tell you how many times fronts over-excel underneath support aloft because this geographical/atmospheric coupled factoring,.  you end up with fronts down over NYC with the support for the front aloft up near Manchester NH... 

 

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whatever happens ...it's probably gotta be d'day - 

Even NYC BD's on the NAM on Thursday ...all the way down to +15 in the T1 (probably mid 60s) on this FRH grid, with NE wind there.  

Meanwhile, SNE is steeped in GOM/southern Ontario mash-up misery air mass.   

In fact, it's deep enough in the sounding that the LI's over just about the whole region rise from -3 or so all the way to +5 or 6 on the regional scope.  B'bye warm and humid... 

On hi res sat loop you can see strata and fog already assuming a SW trajectory over western NS.  I also think that MCS desitined to dive S of us out of Michigan plays a role. As it does ... it'll truncate the environmental flow down some and that lowers resistance for the front to cut in...  Or not - this part is hypothetic

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3 minutes ago, metagraphica said:

Hmm....no one talking about that warned storm south of Worcester?  It had a hail core and now looks to have a hook echo and is turning right.  I only have crappy radar here at work so if anyone has any good radar screens of it...

weather.cod.edu and yea its interesting

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http://www.spc.noaa.gov/products/md/2017/md1295.html

 

SUMMARY...Strong thunderstorms are expected across southern New York
   and southern New England this afternoon. Gusty winds and marginally
   severe hail are the primary threats.

   DISCUSSION...Latest satellite/radar imagery suggest the remnants of
   a weak MCS have shifted into southern NY, centered over BGM CWA.
   Over the last hour or so convection has gradually increased ahead of
   an old MCV that is embedded within the left-over convective debris.
   Scattered thunderstorms are developing within a modestly buoyant air
   mass extending from the lower Hudson Valley east into southern New
   England. Deep-layer westerly flow favors multi-cell updrafts and
   gusty winds and marginally severe hail could accompany this
   activity. At this time it does not appear a severe thunderstorm
   watch will be warranted, though a few strong-severe storms will
   likely be evident along this corridor.
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