…SLIPPERY COMMUTE POSSIBLE AS SNOW MOVES IN…

A quick moving but ill-timed weather system is causing havoc with Monday morning rush hour.  Snowfall will be under an inch and will melt off as temperatures rise to 40 today. 

A larger weather system will bring mainly rain late Tuesday into Wednesday, then much colder air for late week with a slight chance of snow.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
405 AM EST MON DEC 7 2009

…SLIPPERY COMMUTE POSSIBLE AS SNOW MOVES IN…

AN AREA OF LIGHT SNOW WILL SPREAD ACROSS MUCH OF THE AREA THIS MORNING…HITTING MOST LOCATIONS DURING THE PEAK COMMUTING TIME OF 5 AM TO 9 AM. WHILE SNOW ACCUMULATIONS ARE EXPECTED TO REMAIN LESS THAN AN INCH…PAVEMENT TEMPERATURES BELOW FREEZING WILL ALLOW AT LEAST SOME OF THE SNOW TO STICK TO ROAD SURFACES…WHICH WILL CREATE SLIPPERY TRAVEL. THIS WILL LIKELY BE THE FIRST BOUT OF WINTER TRAVEL CONDITIONS FOR MANY RESIDENTS SO FAR THIS SEASON…AND EXTRA CAUTION IS ADVISED. IN ADDITION…VISIBILITIES IN FALLING SNOW MAY DROP BELOW A MILE BRIEFLY THIS MORNING. TRAVEL CONDITIONS SHOULD IMPROVE RAPIDLY TOWARD MID TO LATE MORNING AS TEMPERATURES WARM INTO THE 30S AND THE LIGHT SNOW DIMINISHES AND SHIFTS EAST OF THE AREA.

Rainstorm wimps out

Wednesday rainfall as of 6 PM fell far short of expectations, about 0.20 inch, after a warm and dry November.  November rainfall was only 0.95 inch, or about 25% of normal.  It appears that the trajectory of the Wednesday system formed an Appalachian rain shadow to the north and northwest of the mountains in a straight south to north flow.  Heavy rains fell south of the mountains.  It is probably still a good idea to water evergreens one last time going into winter  unless of course the back side of the current weather system overachieves.

Meteorological winter cometh…

After a tranquil and mild November with little precipitation, things are about to change.  Colder air will work in for Thanksgiving, with non-accumulating snow flurries or light snow showers possible for the end of the week.

Conditions will improve a bit over the weekend, but this is ahead of a major weather system forming for the first week of December.  While it is too early to be too specific, be aware that much colder air will again invade next week and snow may develop.  It is not clear if this snow would target Cincinnati or other areas.  In fact, St. Louis and Memphis are even possible targets.

For now, just be aware that next week is the first week of December and the first week of meteorological winter and it will look and feel like it.