After reviewing the 00z model guidance and noticing that QPF totals were cut down ..I decided to issue a revised map...
R.W.S has decided to issue a Winter Weather Advisory as of 2:30 AM effective the next 6-9 hours. This will apply to the counties of berks and lehigh in PA.
WAA snows have overspread the area and continue to move thru in the next 6-9 hours.
The culprit for this is a clipper vortex south of the Great Lakes region which is slowly moving to the East Northeast. This vortex will spin out other vortexes and keep the chance of light snow thru out the day today and possibly into monday morning.
With the extremely cold temperatures that have been in place the snow will quickly make roads difficult to travel.
Over all R.W.S is not expecting much more then 1-3 inches in Lehigh and Berks County.
Spotter reports indicate that around an inch of snow has fallen in the ABE area.
Stay tuned to later statements if they become necessary! Bundle up when heading outside overnight tonight.
A Winter Weather advisory means that light snow /sleet/Zr is occurring and expected till the advisory expires. This advisory is expected to expire by 10 AM Est January 18th 2009
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