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December 16th event


RaleighWx

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If I read it correct it gives me about .25 qpf all right at or below 32 degrees Now i'm not sure I looked at it right ? If you don't mind check it for me and see if i'm correct. TIA kmwk ?

.30, a few flakes, some sleet, and mostly zr. Temps look cold enough for snow at 7am Saturday for whenever any precip might move in.

TW

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The GFS seems to have more widespread QPF over at least northern NC, and at least the temps don't look any worse...

Temps went down a bit this run, and QPF up, especially along the NC VA boarder. Soundings this run keep PGV freezing at the surface till around 1pm Thursday, and after that most of the moisture is gone. 0z GFS is OTS looking at H5 maps through 84hrs, trough is still positive as it crosses the mississippi; so your saying there is a chance! :thumbsup:

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I liked this run. There doesn't appear to be a phase between the northern and southern jet so therefore it's OTS and does not move up the coast. It also appears to be a little slower allowing some colder temps to work its way in. Overall, if it worked out like the gfs showed tonight it could be a nice little event.

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Well I was wrong at 99 less QPF and can't get the SFC temps we need....RDU and I-40 special this run.

I like this better than the other runs. For once you and I are in the cold air. With that heavy precip. coming down that would bring our surface temperatures down and this isn't nailed in stone yet anyways. This looks to me like an I-- 85 special.

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I think everybody is in the game at this point. What we really need is for that piece of energy dropping down through the plains to be farther south and stronger. If we can get that to happen, the storm should crank up faster; pulling in more cold air, and throwing more moisture back this way.

The NAM at 84hrs has that piece of energy significantly farther west than the GFS. Also, the nogaps has been showing that energy much stronger as well as dropping it in farther south, hence the snowier southern solutions it has been spitting out...

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I like this better than the other runs. For once you and I are in the cold air. With that heavy precip. coming down that would bring our surface temperatures down and this isn't nailed in stone yet anyways. This looks to me like an I-- 85 special.

We still have a problem with low level cold getting over the mountains I think, we usually do. The cold bends from the north, and around to the southwest, especiall at the 925 to 950 mb level. Its a little bit of downlsoping right over our area literally, but the 850 low track could offset that. However, theres no sign of 850 low when its near us on this run, unlike the other run, plus we'd want to see it formed much further to the southwest to get the benefit from it along the 74 corridor. For us, its still really a race of moisture against cold air. The Euro was colder, we'll see if it can squeeze it a bit colder before the bulk of the moisture gets in.

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