Friday, February 5, 2010

Friday Morning Update...

Not much has changed from last night's update. A cold rain is expected today but will gradually change over to snow this afternoon and evening from north to south across our region. At 9:30am EST Bloomington, IN was reporting 1 mile and light snow, Cincinnati, OH was reporting a mix.
Colder air should continue to get pulled into the region as the day and evening hours wear on. Latest 12 RUC soundings suggest a change to wet snow in the metro between 21 and 00z (4 to 7pm) - of course earlier to the north - later to the south.


Wet snow expected to become dominant p-type tonight and this is when a bulk of the accumulations will occur (the exception being our northern counties due to the change over occurring earlier).


A quick glance at the new 12z NAM qpf's suggests our going forecast still looks pretty good for now.


Quick look at next week's system... like we talked sbout yesterday... more and more of the data coming in is suggesting more of a phasing occurring between the northern and southern stream with this system. This would suggest a stronger and slower system. Thsi is also telling me that the warmer solution is a difinite trend. May still start as snow - but it looks to change to rain - then back over to snow (flurries) as it ends. There's even a chance that this will be a mainly rain event for a good chunk of the area with just a few flurries on the back side in the colder air. We'll see what the 12z data suite comes in with...


Jay

1 comment:

Anonymous said...

Hi Jay. Belski mentions that precip totals might need to be upped based on the 700 and 850 mb lines being further south than they were yesterday. Do you foresee higher snow totals developing potentially?