Alerts in Effect
Winter Weather AdvisoryIssued at 12:05 Wednesday 26 April 2017
A series of low pressure systems lifting across the Upper Great
Lakes along with abundant moisture will result in widespread rain
across western Upper Michigan into Thursday morning. Since
surface temperatures will be around freezing there is an
increased chance of freezing rain with icing, briefly this
morning, then again tonight into Thursday morning. Eventually the
mix of rain and freezing rain will mix with and possibly change
to snow on Thursday morning. Depending on how much precipitation
occurs, some areas may see ice accumulations up to one-quarter of
an inch with higher amounts possible over some higher terrain
locations from Ironwood to Copper Harbor to Herman.
* Freezing rain is expected tonight into Thursday morning over
most of western Upper with ice accumulations of one-tenth to
one-quarter of an inch. Higher terrain locations from Ironwood
to Copper Harbor to Herman that will have temperatures below
freezing would see the greater ice amounts. In Iron county, the
most freezing rain and icing will occur later tonight into
Thursday over western portions of the county, including Iron
* Sleet and snow may mix with the rain and freezing rain late
tonight into Thursday morning, especially over far western
Upper Michigan. At this time, only minor snow accumulations are
expected on Thursday.
* Most of the ice accumulation into Thursday morning will occur
on elevated surfaces such as trees and power lines.
* Untreated roads still may develop a thin glaze on them, so
use caution if traveling especially where air temperatures
are at or below freezing.