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New Year Storm Thread 12/29-01/01


dryslot
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8 minutes ago, Damage In Tolland said:

Well if you’re not then you’re thinking Rainer there. Because we have zero chance of snow or even much sleet .

Right now I'm fully expecting a 35F Rainer for most of the event...then maybe transitioning to ZR/IP later in the event and eventually some light snow. But if we see euro tick a little colder than it already is, then I'll start becoming concerned for bigger ice. 12z run was a sleet bomb for my area and prob ZR for you, but I'm expecting this to tick warmer again as we get closer with that monster ULL out to the west...so I want to see some colder trends first before it comes back warmer again....that leaves wiggle room. 

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28 minutes ago, ORH_wxman said:

Right now I'm fully expecting a 35F Rainer for most of the event...then maybe transitioning to ZR/IP later in the event and eventually some light snow. But if we see euro tick a little colder than it already is, then I'll start becoming concerned for bigger ice. 12z run was a sleet bomb for my area and prob ZR for you, but I'm expecting this to tick warmer again as we get closer with that monster ULL out to the west...so I want to see some colder trends first before it comes back warmer again....that leaves wiggle room. 

I’m not expecting that at all. Every run has gone colder. This is a very anomalous setup. The high keeps getting stronger each run. I recall the same was though with the 2008 storm right up until it started 

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Careful there with that idea Kev....last time you thought the high was gonna Press and deliver 3-6” before the ice, and that didn’t happen.  This could easily be just a cold rain for most in SNE.  
 

Take the cautious route on this one as of now...probably more Meh than anything for most south of pike the way it stands currently. It’s got more work to do to be a mostly frozen event. 

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Eckster's take early on for up here....

.LONG TERM /SATURDAY THROUGH THURSDAY/...
12z deterministic models and latest ensemble information have
come into better agreement today with regards to a potentially
significant winter storm for portions of our forecast area
Sunday night through Tuesday. However with that said, this is a
complex, potentially 2-part system which may spur further model
outcome changes going forward over the next couple of days.
Therefore, forecast confidence is precip type(s), timing, and
amounts remains low.

After a fair weather Saturday and probably much of Sunday, a
large an amplifying trough will approach from the west along
with a significant slug of moisture advection and forcing for
ascent. At the same time, mid and upper level confluence well to
the northeast of our region will reinforce cold dry low level
air over the forecast area. Multi-model and ensemble consensus
was followed here and shows a rather impressive slug of QPF
arriving across southwestern zones late Sunday, then gradually
progressing northeastward Sunday night. The emphasis is on
the word gradually as low level dry air and synoptic scale
downward motion will make for a slow go for the leading edge.

Precipitation type is very uncertain, but a mix of snow, sleet,
and freezing rain appears to be a good bet based on the latest
consensus thermodynamic profiles. Some rain will be possible
for a time in the far southeast as boundary layer temperatures
remain somewhat warm.

As previously mentioned, the pattern is complex with a lot of
amplification and "blockiness". Therefore, it doesn`t make much
sense at this time to try and pinpoint exact timing, dominant
precipitation types, amounts, and impacts this far out. More
suppression would lead to a farther south scenario as less
precipitation for our CWA as a whole. A farther north scenario
with less upstream blocking would result in a warmer scenario
for most. However, the main message here is that there is the
potential for a significant amount of snow, sleet, freezing rain
and possibly some rain for the forecast area centered around
Sunday night through Tuesday as a prolonged, 2-part system may
take shape. At this time, consensus for the location of the
heaviest amount of precipitation is across southern and coastal
zones, but this could easily change.

&&

 

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25 minutes ago, WinterWolf said:

Careful there with that idea Kev....last time you thought the high was gonna Press and deliver 3-6” before the ice, and that didn’t happen.  This could easily be just a cold rain for most in SNE.  
 

Take the cautious route on this one as of now...probably more Meh than anything for most south of pike the way it stands currently. It’s got more work to do to be a mostly frozen event. 

Not excited yet, but we have a chance, better than the last few days which have been boring.

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