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1/17/16 Winter Weather Threat


packfan98

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People forget that just a few days ago the long range Euro showed this bomb off our coast, for the 17-18th, remarkably similar to the 12z GFS solution earlier today.

 

The energy needs to get captured more-so than the 00z Euro just said for that solution, correct?  I mean, maybe the energy is holding back a tad too long with the Euro bias.  I don't know if the bias is still there, I hear it's the resolution but never looked deep into it.

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looking like it wont quite get done, might be an improvement still.

 

big improvement.. 

 

definitely shows a chance at something better at h5 this go around... the model watching continues.

Euro solution would be better for us, correct?  Other than the placement of the Low currently.

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The energy needs to get captured more-so than the 00z Euro just said for that solution, correct?  I mean, maybe the energy is holding back a tad too long with the Euro bias.  I don't know if the bias is still there, I hear it's the resolution but never looked deep into it.

The main differences I see that are still holding the Euro back is it drops the PV into the Great Lakes much quicker than the GFS and UK which significantly suppresses the energy. It also was very positive tilt in previous runs, however the 00z had it neutral and phased in some northern stream energy for the first time in recent days. This is why you saw it move further north and stronger. No other model outside the Euro/CMC drop the PV as fast which is the main difference now keeping it from going up the coast. I expect that to change soon as the Euro made a nice jump NW with that energy in the first part of its run, it's catching on, albeit slowly. By 00z tomorrow night we should have a good track consensus. Imo this will be a blend of the 12z GFS and UK tracks/intensity.

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Euro solution would be better for us, correct?  Other than the placement of the Low currently.

 

It's gonna be hard to get Wintry weather out of the potential setup around Columbia as a whole.  40F and higher numbers aren't going to dewpoint down or anything like that.  The surface freezing line really won't be close enough like to our far Northern zones and NC.

 

Miracles can happen, but this is very very far (if there is even precipitation) from being an optimal Winter weather setup for us.

 

Here is the 00z GFS Bufkit output for the KCAE area (44.3F & light rain):

Date/hour FHr Wind SfcT Ptype SR |Snow||Sleet|| FZRA|| QPF CumSR|TotSN||TotPL||TotZR|| TQPF S%| I%| L%
============================================================================================================================
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---
160117/1500Z 87 02010KT 44.3F RAIN 0:1| 0.0|| 0.00|| 0.00|| 0.020 0:1| 0.0|| 0.00|| 0.00|| 0.02 0| 0|100
160117/1800Z 90 36014KT 47.0F 0:1| 0.0|| 0.00|| 0.00|| 0.000 0:1| 0.0|| 0.00|| 0.00|| 0.02 0| 0| 0
160117/2100Z 93 35009KT 47.2F 0:1| 0.0|| 0.00|| 0.00|| 0.000 0:1| 0.0|| 0.00|| 0.00|| 0.02 0| 0| 0
160118/0000Z 96 36003KT 44.9F 0:1| 0.0|| 0.00|| 0.00|| 0.000 0:1| 0.0|| 0.00|| 0.00|| 0.00 0| 0| 0
----------------------------------------------+----++-----+-------------++--------------++-------------++-----------+---+---

Here are the temps through the atmosphere based on 00z GFS: (you can see 15-18th too warm to not melt anything)

temp.png

 

 

 

NWS KCAE is sticking to their previous discussion in saying:

 

 

THE FORECAST SOUNDINGS DO NOT  

SUPPORT ANY PRECIP TYPE OTHER THAN RAIN ACROSS THE FORECAST AREA  

ALTHOUGH LATEST GFS BUFKIT TIME SECTION FOR CLT SHOWING SOME LIGHT  

SNOW ACCUMULATIONS FOR LATE SATURDAY NIGHT/EARLY SUNDAY MORNING.  

GIVEN CURRENT UNCERTAINTIES...WILL KEEP PRECIPITATION IN THE  

LIQUID FORM FOR THE ENTIRE FORECAST AREA.  

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Not good trends for the GFS/GEFS overnight, trending more south and towards the Euro. But...the Euro trended more north towards the GEFS. Also, the Euro/EPS are still not in complete agreement (Euro Op hangs s/w more south than the EPS)...still, not what you want to see for the GFS.

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Lol at folks saying Euro got the coup... It only moved the LP oh 400 miles or so. CMC even more laughable. While I'm not overly excited about snow for you guys I do think we're starting to see models honing in now. However how many times have we seen this? It focuses in on what to do with the energy and then the NW trends begin. Don't sleep on this one yet.

Sent from my LG-H811 using Tapatalk

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Lol at folks saying Euro got the coup... It only moved the LP oh 400 miles or so. CMC even more laughable. While I'm not overly excited about snow for you guys indo think we're starting to see models honing in. However how many times have we seen this? It focuses in on what to do with the energy and then the NW trends begin. Don't sleep on this one yet.

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agree. sw wont get over the conus until late tonight, this thing can and will change as we roll into the weekend.  even the 06z gfs gives a good bit of nc a trace.  lets see what the 12z and 00z runs do today before jumping off the cliff.

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Lol at folks saying Euro got the coup... It only moved the LP oh 400 miles or so. CMC even more laughable. While I'm not overly excited about snow for you guys I do think we're starting to see models honing in now. However how many times have we seen this? It focuses in on what to do with the energy and then the NW trends begin. Don't sleep on this one yet.

Sent from my LG-H811 using Tapatalk

Yeah not getting that at all. I don't think we "Know" any more than we did after yesterdays runs. We are not going to get hammered with a huge snowfall but this thing isn't settled quite yet.

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anyone looking to throw in the towel, read RAH afd.

 

"THE MODELS WILL LIKELY CONTINUE TO DIFFER UNTIL THE

SYSTEM MOVES ONTO THE WEST COAST AND IS SAMPLED BETTER...LATER
TONIGHT OR FRIDAY. AS A RESULT...CONFIDENCE REMAINS LOW...ESPECIALLY
WITH REGARD TO THE CHANCES...TIMING...AND TYPE OF PRECIP OVER THE
AREA."

 

models will continue to waver until tomorrow's 12z runs.  

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What about the upstate of sc should we cut the cord on anything

There was really no chance to start with for the upstate. The upstate mountains could see some flakes mixed in the rain but the mountains will block most of the cold air. Western NC will see snow showers while northern mountains will see more amounts of snow. Such as boon NC ect.

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agree. sw wont get over the conus until late tonight, this thing can and will change as we roll into the weekend. even the 06z gfs gives a good bit of nc a trace. lets see what the 12z and 00z runs do today before jumping off the cliff.

Honestly may have to wait until 12z tomorrow for that energy to be sampled correctly.

Edit: just saw your new post (on my cell)...yeah I agree with RAH the new OBS may not even be ingested into the 12z runs really, it may be 18z or 00z before we really get a good idea. I mentioned this yesterday maybe to you about 12z tomorrow? Don't recall, but sampling the s/w is huge.

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