Hydrologic Outlook issued February 14 at 3:15PM CST by NWS Chicago IL
ESFLOT Favorable conditions for river ice development and possible ice jams will exist through today and then return early next week, impacting the Rock, Fox, Des Plaines, and Kankakee river basins. Very cold temperatures, favorable for rapid formation of river ice on most areas rivers, will continue through today. After a brief warm-up on Saturday, an additional period of very cold weather is expected to arrive early next week. Area river gauges indicate likely ice effects and a few minor ice jams, although no flooding appears imminent at this time. New and worsening river ice cover remains possible into tomorrow
Hydrologic Outlook issued February 13 at 3:06PM CST by NWS Chicago IL
ESFLOT Favorable conditions for river ice development and possible ice jams will arrive tonight into tomorrow and then continue into next week, impacting the Rock, Fox, Des Plaines, and Kankakee river basins. Very cold temperatures, favorable for rapid formation of river ice on most areas rivers, have moved into the region. An additional period of very cold weather is expected to arrive early next week. The formation of heavy river ice cover means that ice jams will be possible in isolated areas, especially along the Rock, Fox, Des Plaines, and Kankakee rivers. Ice jams may cause rises and fluctuations on
Winter Weather Advisory issued February 12 at 9:22PM CST until February 13 at 3:00AM CST by NWS Chicago IL
* WHAT...Snow. Additional snow accumulations up to one inch. * WHERE...Portions of north central and northeast Illinois. * WHEN...Until 3 AM CST Thursday. * IMPACTS...Plan on slippery road conditions.
Hydrologic Outlook issued February 12 at 12:32PM CST by NWS Chicago IL
ESFLOT Favorable conditions for river ice development and possible ice jams are expected beginning Friday and continuing into the weekend, impacting the Rock, Fox, Des Plaines, and Kankakee river basins. Very cold temperatures, favorable for rapid formation of river ice on most areas rivers, are expected Thursday through Friday and again early next week. The formation of heavy river ice cover means that ice jams will be possible in isolated areas, especially along the Rock, Fox, Des Plaines, and Kankakee rivers. Ice jams may cause rises and fluctuations on area rivers with little warning. This outlook means that elevated water
Small Craft Advisory issued February 11 at 9:57PM CST until February 13 at 9:00AM CST by NWS Chicago IL
* WHAT...Northeast winds to 25 kt and significant waves to 7 ft occasionally to 9 ft expected. * WHERE...Winthrop Harbor to Calumet Harbor, IL and Calumet Harbor, IL to Gary, IN. * WHEN...From 6 AM Wednesday to 9 AM CST Thursday. * IMPACTS...Conditions will be hazardous to small craft.
Hydrologic Outlook issued February 11 at 2:17PM CST by NWS Chicago IL
ESFLOT Favorable conditions for river ice development and possible ice jams are expected beginning Friday and continuing into the weekend, impacting the Rock, Fox, Des Plaines, and Kishwaukee river basins. Very cold temperatures are expected Thursday and Friday, with conditions becoming favorable for rapid formation of river ice on rivers and tributaries as early Thursday night into Friday. Ice jams will be possible in isolated areas along the Rock, Fox, Des Plaines, and Kishwaukee rivers. Despite a brief warm-up Saturday, most river ice will likely remain in place through early next week when another period of very cold temperatures arrives.
Winter Weather Advisory issued February 11 at 9:39PM CST until February 13 at 3:00AM CST by NWS Chicago IL
* WHAT...Snow, possibly heavy at times, expected. Total snow accumulations between 2 and 4 inches. Snow is expected to change to freezing drizzle or light freezing rain Wednesday evening. Total ice accumulation up to a tenth of an inch. * WHERE...Portions of central, east central, and northeast Illinois and northwest Indiana. * WHEN...From 9 AM CST /10 AM EST/ Wednesday to 3 AM CST /4 AM EST/ Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will likely impact the Wednesday evening commute.
Winter Storm Watch issued February 10 at 9:03PM CST until February 13 at 3:00AM CST by NWS Chicago IL
* WHAT...Heavy snow possible. Total snow accumulations of 6 or more inches possible. * WHERE...Portions of central, north central, and northeast Illinois and northwest Indiana. * WHEN...From Wednesday morning through late Wednesday night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Wednesday evening commute. * ADDITIONAL DETAILS...Snowfall rates of an inch per hour are possible, including during the Wednesday afternoon and evening commute.
Special Weather Statement issued February 7 at 2:58PM CST by NWS Chicago IL
A period of freezing drizzle is expected to spread across the area by mid to late Saturday morning and continue into Saturday afternoon. Any untreated surfaces may become slippery as temperatures hover at or below freezing.
Gale Warning issued February 6 at 9:15PM CST until February 7 at 3:00AM CST by NWS Chicago IL
* WHAT...Northwest gales to 45 kt and significant waves to 5 ft. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...Until 3 AM CST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.