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1/17/16 Winter Weather Threat


packfan98

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You almost always see a precip shield more expansive than what the models show.

It's a fairly fast mover, models often have too much qpf with fast moving systems and then inside 72 hours they often begin cutting back. We see this often in New York when a fast moving coastal comes up the coast with no blocking the qpf almost always drops off the last 2 days

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It kind of sucks living just SE of RIC in Va. We tend to get left out of the discussion. Not really considered the SE nor the MA. Kind of just stuck out in some misfit land.

I understand....  Right now though, you look better than us!  If you are cold enough that is.  This seems like a system where a NW trend is possible so we will see.

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The ukmet looks just like it did at 12z. It's precip only goes out to 72 hrs. It's a great model skill wise but you don't get all the bells and whistles like the globals unfortunately. Gonna be a fun week next week. Got a shot sun,we'd and next weekend. Probably get hit all 3 times and walk away with 1 to 2 inches total lol. Just enough to avoid the shutout. Seriously atleast we get to play the game and that's a win in itself.

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Euro trending towards GFS through hour 60. Energy is faster in southern stream, closer to neutral and PV further NW. All hail King GFS? Lol.

Hour 72 the Euro has the energy neutral tilt and some northern energy phasing in. It has the PV further NW closer to the GFS and the southern energy a tad faster. This tells me the GFS solution will be closer to reality and with CMC/Euro trending towards the GFS we should have a good consensus by this time tomorrow.

Here is a comparison between the current run and previous run. Nice jump north.

12z run

post-2321-0-65330700-1452752159_thumb.pn

00z run

post-2321-0-08152800-1452752138_thumb.pn

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Baby step for Euro.  Euro and CMC have similar look with gulf low passing thru FL, and just passing flurries from weak northern stream energy.  GFS and UKMet are turning the corner with the gulf low moving out off the GA coast.  WPC update tonight likes a weak low closer to the coast...more like GFS and UKMet, though closer to the coast.

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WPC Model Discussion...says Euro is a bit of an outlier

A QUICK-MOVING SYSTEM EMERGES ON THE MAP AS IT CROSSES THE OREGONCOAST BY 15/0000Z. DURING THE EARLY STAGES OF EVOLUTION...THE 12ZCMC IS SLOWER COMPARED TO OTHER SOLUTIONS. GENERAL MODEL AGREEMENTCARRIES THIS SYSTEM DOWNSTREAM TOWARD THE BIG BEND OF TX BYSATURDAY MORNING. MOST NOTABLY...THE 12Z ECMWF IS WELL OFF TO THESOUTHWEST WHICH IS EVEN AWAY FROM ITS ENSEMBLE MEAN. OTHER MODELSDO SHOW A RATHER PRONOUNCED SHORTWAVE RACING ACROSS THE LONE STARSTATE WITH A SURFACE LOW POSSIBLY CROSSING THE NORTHERN GULF OF MXON SATURDAY. THERE ARE QUITE A FEW ENSEMBLE MEMBERS AGREEING WITHSUCH DEVELOPMENT THIS WEEKEND. THE BIGGEST OUTLIER IS THE 12ZECMWF WHICH GENERALLY IS MORE DIFFUSE WITH THE INITIAL SYSTEMWHILE ALLOWING AN ELONGATED SHORTWAVE TO HANG BACK OVER THECENTRAL GULF OF MX EARLY SUNDAY. WILL PLAY THIS FEATURE MORECONSERVATIVELY GIVEN SUCH UNCERTAINTIES. AFTER COORDINATION WITHWPC MEDIUM RANGE...THE PREFERENCE WILL BE THE 18Z GEFS MEAN.
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