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JAN 23-24 anyone ?


DTWXRISK

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 major changes at 114 hrs ... the 12z   EURO  has the   Low with 2  or 3 contours around it      and its   as far North as central GA .... a jump over  100  miles.. when comnpatred to the  0z  run at 126 hrs

 

  precip is now on the VA  NC  stgate line a t114  ... at 126  hr   on the 0z  run  precip was   JYSTA  as far north  as ILM and   NC  SC  state line 

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This is rapidly Changing situation. The TREND over the past 3 model cycles is for this low to come "Up the coast " BUT because of the Upper air pattern over Noth America it can only come so far North. This Low isnt going to Cape Cod or the benchmark ( 40N and 70 W).

2. this is NOT 10 days out or 7 days .. its 5 days and closing FAST. keep in Mind The forecasts have to be OUT there by JAN 23... today is the 19th... so do the math 

3 this event does have the support of MJO which is currently in Phase 8 (weak phase 8) which in JAN/ FEB / MAR is one of the east coast snowstorm phases

4 Low level temps over  CENTRAL VA are marginal . This means right near the ground it might be 33   or  34 and snow/ rain mix which does not accumulate....(     this appllies o  central NC   central  / eastern va) 

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it needs to be kept in mind that the snow storm climatology for central and Southern Virginia as well as North Carolina is substantially different than it is for the big cities of  I-95.  Of course sometimes you get one of these massive systems which affects everybody...  But most of the time  that is not the case.

 

In this setup we can see the European model has the southern shortwave  with a distinct positive TILT  at108 hours.  There is also a 50 / 50 Low  over southeastern Canada and the classic position but the   POLAR  branch of the Jetstream is not dropping in and phasing with the shortwave and the subtropical jet.  

 

Because the southern shortwave is already passed the lodge and two of the Mississippi delta   -- 90 West Long   -- it only has so much room before it can develop a neutral and then potentially negative tilt.  On the European and Canadian models  this southern shortwave eventually does develop a negative till but by that time the whole system is well off the coast. 

post-9415-0-55998100-1421693473_thumb.jp

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Oh wow, big changes on the euro ensembles compared to last night. A lot of spread but a substantial increase in members that get solid precip in here. Last night was virtually nothing for us. Now around 15 or so decent hits and plenty of grazes....

 

Mean precip is around .20-.25

Any SECS type hits?

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Any SECS type hits?

 

 

10 solids and another 5 lesser or very close by. Night and day compared to last night. MSLP track is from the FL panhandle to just off obx on up. A bit east but considering how different from last night, it's night and day.

 

Still not a good storm setup for us. We would have to luck into it in many ways in out area. 

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10 solids and another 5 lesser or very close by. Night and day compared to last night. MSLP track is from the FL panhandle to just off obx on up. A bit east but considering how different from last night, it's night and day.

 

Still not a good storm setup for us. We would have to luck into it in many ways in out area.

EPS is up the coast too, just outside BM.

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I pretty much have no stance on threats outside 72 hours and even then there are pretty significant fluctuations. Huge storm probably unlikely with the pattern. Otherwise have no clue

Pretty much the only way to go. 72 hrs. It has been frustrating to see the flip flop in the models, so much so that you don't want to look anymore.

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