Sunday, January 23, 2011

Sunday afternoon update on storm next week.

Well latest models are in from both the over night runs and morning runs and, sadly if your a snow lover this is NOT what we want to see. A more westward shift in the forecast storm track so this means more in the way of rain, with perhaps rain changing over to and ending as some snow (still not set in stone) but looking more likely.
Heres a few forecast model images to give you an idea of how things are looking.
First model is the GFS on Wed morning (after a mostly all rain event Tuesday and Tues night)
That dark blue line is the rain/snow line at about 5000ft. And mostly for us here in Central NC a rain event but if we go to 12 hrs later Wed evening on the GFS we can see this ending as some snow here.
Next is the ECMWF (European model) and its pretty much in line with the GFS on the storm track with maybe some snow to end the event.
Now I dont have a 6 or 12hr interval of the EC model only 24hrs and the next image would show the low up in New England but I do know the EC shows it ending as some snow for western/Central NC.
And the Canadian model is WAYYY to far west for any chance of snow.
and it shows an all rain event, and thats not out of the question either but most of us are leaning with the GFS/EC and so is the HPC and heres their forecast map for the track of the low Wed.

Its more of a blend of the GFS and EC. So snow is not totally out of the question YET but this will be watched for either way to go. Looking ahead after this storm we may get a quick warm up here in NC heres a forecast highs for Saturday around Central NC.
Maybe some upper 40s to low 50s not bad in my book, one last thing I want to show is the 8-10day mean of the upper air flow from the EC and GFS.

Still cold is looking to be the main thing for the next couple of weeks to come, at least the AO and NAO is going positive later on, and what that means is at least no major blocking over Greenland (at least the west side) to keep the cold locked in so it will be more cold in and then moderate after a few days.

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