The second round of accumulating snow arrives Thursday evening, lasting
through Friday morning. Most of the snow early Thursday evening has
been light, but should begin to pick up in intensity during the
overnight as low pressure moves into southern and central Illinois.
Copious amounts of moisture are streaming north ahead of low pressure
diving southeast from the central Plains. Temperatures in the low to
mid 30s across much of northern Illinois will allow some rain to mix in
with the snow, but mostly for areas east and southeast of Rockford.
An additional 1-2 inches of snow will be likely Friday morning with
light snow falling through mid-morning. Areas that see some rain will
have lower snow totals. After that, drier air gets wrapped in around
the low across central and northern Illinois. This will cause the
steady rain/snow mix to end for a little while during the afternoon
before picking back up Friday evening and overnight. It's that time
frame we may need to keep a close eye on for the potential for heavy
snowfall over parts of northern and northeast Illinois.
Low pressure will lift north into northeast Illinois and northwest
Indiana by Saturday morning. There is a little cooler air that gets
pulled south behind the low and this could allow for a quick transition
over to heavy snow Friday evening and night. If this were to happen the
snow would be heavy and wet, and would quickly accumulate on the roads,
possibly impacting the late evening commute. It's still yet to be seen
if enough warm air will remain Friday evening to keep the precipitation
as rain or allow for a changeover to snow. But if we do see the snow,
several inches could fall by Saturday morning.
No comments:
Post a Comment