Værmelding for Brookdale School (historical)

Hydrologic Outlook issued January 19 at 9:13AM CST by NWS Chicago ILESFLOTFavorable conditions for river ice development and possible ice jamsare expected through Wednesday morning, impacting theRock, Fox, Des Plaines, and Kankakee river basins.Bitterly cold temperatures will persist through Wednesday morning.This will make conditions favorable for the rapid formation of riverice on area rivers and tributaries. River ice spotters and rivergauge data indicate that most area rivers already have some areas ofheavy river ice including a few minor ice jams. New ice jams will bepossible along the Rock, Fox, Des Plaines, and Kankakee rivers,including their tributaries. Any ice jam that develops will have thepotential to cause rises on area rivers with little warning andisolated areas of flooding are possible.This outlook means that elevated water levels and potential impactsare possible, but not yet certain. Persons along area rivers shouldcontinue to monitor the latest forecasts into next week.This product will be updated by Monday afternoon.

National Weather Service

Cold Weather Advisory issued January 20 at 2:02AM CST until January 21 at 12:00PM CST by NWS Chicago IL* WHAT...For the first Cold Weather Advisory, very cold wind chillsas low as 20 to 25 below. For the second Cold Weather Advisory,very cold wind chills as low as 25 to 29 below expected.* WHERE...Boone, De Kalb, Lee, Ogle, Winnebago, Kane, and McHenryCounties.* WHEN...For the first Cold Weather Advisory, until noon CST today.For the second Cold Weather Advisory, from 9 PM this evening tonoon CST Tuesday.* IMPACTS...The dangerously cold wind chills as low as 20 to 25below zero could cause frostbite on exposed skin in as little as30 minutes.* ADDITIONAL DETAILS...Wind chills will drop to around 20 below zerothis morning. After some recovery this afternoon, another round ofdangerously cold wind chills of 25 to 29 below is expected tonightinto Tuesday morning.Wear appropriate clothing outdoors, including a hat and mittens orgloves. Keep pets indoors as much as possible. Make frequent checkson older family, friends, and neighbors. Ensure portable heaters areused correctly.

National Weather Service