8:09PM | posted by Brian Wilkes | February 24, 2010

GUSTY SNOW SHOWERS CONTINUE - A LAKE CONNECTION

LATE SEASON ARCTIC AIR HAS TURNED ON LAKE SNOWS THAT ARE STREAMING INTO CENTRAL INDIANA WEDNESDAY NIGHT.  SNOW WILL CONTINUE OVERNIGHT.

 

11 PM UPDATE

Heavy snow band moving into Marion Co.  Narrow band from Marion north to southwestern Hamilton extends north to eastern Clinton Co.

Snow of 2 to 3 inches reported

2" Frankfort

3.2" Forest

3" to 4" Scircleville

 

 

Cold northwest winds are running down the length of lake Michigan and sweeping vigorous snow squalls into central Indiana late Wednesday night.  Visibilities drop quickly and a quick accumulation will create travel hazards for the Thursday morning commute.  These lake effect snow bands are tricky to say the least - one or two miles either side of the band there may be little or no snow but locally some area will see snowfall of one or two inches. 

 

This stream line wind forecast - winds that are just above the earth's surface - shows the northwest flow of air transporting the snow bands south.  Early Thursday morning the winds will begin to shift slightly more west cutting off the warm lake water supply and allowing the bands to become shorter and weaker while shifting north east of the city.

 

Stream_lines.JPG Radar.JPG

 

Late season arctic air will ease through the week but this upper low will be stubborn to depart.  Its presence will be felt through the weekend - generating a few flurries Friday and keeping temperatures well below the normal high of 43 into early next week.  No major systems are expected in this time frame but there is a southern system that bears watching.  Indications are as of tonight that this could deliver another major storm over the southeast and Mid Atlantic states next week.

 

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