Sunday, February 10, 2019

UPDATE: Snowy Sunday

Just a couple hours before nightfall and we're looking at about an inch or more for most of Central Ohio. The assumption with yesterday's post wasn't that it wouldn't snow... but that it would be low impact since this would change to rain by tomorrow.

The impact today is productive snowfall sticking to cold surfaces. Even with the light snow we have, there are already some snow emergencies for the area:

Snow will continue through 8pm for most of the area. That could accumulate up to 2" for most areas. I think impact would be minimal by the morning commute as we would have all night to clear the roads. The problem will be precip returning from the south shortly before sunrise. Our biggest issue will be temperatures. We will be right on the boarder of freezing, meaning it'll be a hard forecast for rush hour. We could see snow, sleet, freezing rain or just plain rain. It'll be very hard to tell:


So what happens? I've illustrated 33 degrees on top of the HRRR radar simulation. That'll put us really close for a precip type. We could be above freezing above the surface, but just below on roadways. So I think we could see some icy conditions first thing tomorrow.

If this plays out, expect some school delays in the morning, and a tricky commute.

By 10am temperatures should jump and leave us with all rain. At that point we go from a tricky commute to a rainy 36 straight hours. 

Lastly, we could have another hit of snow Tuesday night. I didn't call for this yesterday as I thought moisture would move out before cold could wrap in, and I assumed warm air would return too quick. The NAM doesn't think so:


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