...Potentially Significant Winter Storm For Some Areas Of The - TopicsExpress



          

...Potentially Significant Winter Storm For Some Areas Of The Bi-State Region Late Tonight And Wednesday... A New Storm System Is Taking Shape Over Texas And Is Expected To Track Northeastward Into Northern Indiana By Nightfall Wednesday. Precipitation From This System Will Already Move Into Parts Of Our Region By This Afternoon And Evening And Will Strengthen And Expand Overnight And Wednesday Morning With The Precipitation Then Pulling Out Wednesday Afternoon. As It Looks Now...The Most Persistent Precipitation Will Be Over Southeast Missouri...The Saint Louis Metro Area...And Southwest Illinois. Temperatures Will Be Warm Enough When The Precipitation First Moves In Later Today To Result In Rain. But By Late Tonight... As Colder Air Filters In...Rain Will Change Over To A Wet Snow. This Changeover To Wet Snow Will Continue Through Wednesday Morning For The Rest Of The Area. Areas That Have The Highest Snowfall Potential Extend From Parts Of The Eastern Ozarks In Southeast Missouri Through The Saint Louis Metro Area And Extending Northeastward Up The Interstate 55 Corridor Towards Central Illinois. It Is Here Where The Most Likely Snowfall Amounts Look To Be 1 To 2 Inches Of Wet Snow That Will Primarily Accumulate On Grassy Surfaces. In Addition...There Also Appears A Reasonable Chance Of A Very Narrow Band Of Heavy Snow That Could Result In Much Higher Snowfall Amounts...However... Confidence On The Exact Location Of This Band Of Heavy Snow Is Not High At This Time. Areas To The North And West Of Saint Louis Metro Should Receive No More Than A Dusting Of Snow...If Any At All. For Most Locations...The Impacts Of This Snow Are Expected To Be Minimal To Roads Due To Temperatures Just Above Freezing And Warm Ground. But If The Very Narrow Band Of Heavy Snow Materializes... Snow Or Slush Covered Roads Will Likely Result And Will Overlap Morning Rush Hour Times For Some Locations. Those With Holiday Travel Plans On Wednesday Should Closely Monitor Developments With This Storm And Be Aware Of The Potential For Hazardous Driving Conditions For Some Locations. Some Parts Of This Forecast May Still Change As There Is Uncertainty With Respect To Changeover To Snow Times And Potential.
Posted on: Tue, 23 Dec 2014 14:20:46 +0000

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