Monday late evening update

Get ready... the cold air is gathering across NW Canada and it will soon be heading in our direction...

In the short term, we will have several chances for light snow and flurries this week into the weekend - but none look to be a big storm for the Ohio Valley. Flurries will end overnight allowing for clearing skies and cold temperatures. The next 2 days will be quiet with high pressure both at the sfc and aloft building in.

However, late Wednesday night and Thursday will paint a different picture. We will be watching 2 systems during this time period. A weakening shortwave will work rapidly northeast from the southern plains towards the Ohio Valley. As a result, moisture will be pulled north into the region and will overrun the cold air in place.

Light snow is expected to develop late Wednesday night into Thursday morning... but then may gradually change over to light rain before ending Thursday afternoon as warmer air works into the Ohio Valley. So what about accumulations.... certainly a chance - but it looks to be quite light. No sfc low close to us, no H85 low close to us, no H7 low close to us... This is just some weak, broadscale lift caused by WAA (warm air advection) and the weakening H5 shortwave that is lifting through the area...

at this time I would put snow amounts at less than 1 inch for the NewsChannel 32 viewing area... actually another band of light snow and/or flurries will likely impact the region Thursday night as a cold front surges through the area.

The heavier snows will develop from Eastern NE, through Iowa, northeast into Southern MN and WI. 4 to 8 inches will be possible in these regions. This band of snow will occur with a strong upper level low and a developing low pressure at the surface as well - This will be the main/big storm system for this week.

Friday night, an arctic blast will rapidly surge south into the Ohio Valley.

Some of the coldest air of the season so far will accompany this front. Another band of light snow and flurries will be likely (NO big storm though). Temperatures behind this front will likely stay in the teens for highs Saturday with lows dropping to near the single digits by Saturday morning and well into the single digits by Sunday morning as H85 temps drop in the -20 to -25 range !

More moisture is then progged to work over the colder air from the south. This moisture will likely give us either some snow or possibly even some ice - as temperatures warm aloft.