Dangerous wind chills 20 to 30-degrees below zero are expected to hit the Chicago area later tonight into Wednesday morning as another surge of Arctic high pressure blasts into the Midwest.
Clear skies and the still-thick snow cover will with the frigid influx of air from the Arctic allow readings here Wednesday morning to drop to record low values – Chicago’s record low of -1 on this date was set back in 1963.
The sub-zero readings combined with 10 to 20 mile-per-hour winds will result in the forecast -20 to -30-degree wind chills.
Note on the National Watch/Warning map below (blue-shaded areas), the Wind Chill Advisories for later tonight into Wednesday morning extend back to the north and west through Wisconsin, Iowa and Minnesota into the Dakotas – all are expecting wind chills in the -20 to -35-degree range.
Stay tuned – with another cold frontal passage expected Wednesday, there could well be a repeat of these Wind Chill Advisories later Wednesday night into Thursday morning.