2 products issued by NWS for: Arlington Heights IL
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 511 AM CST Fri Feb 14 2025 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-151115- Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford- Northern Cook-Central Cook-Southern Cook-Northern Will- Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton- 511 AM CST Fri Feb 14 2025 /611 AM EST Fri Feb 14 2025/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...Today and Tonight. Weather hazards expected... Limited Excessive Cold Risk this morning. Limited Snow Risk this evening and overnight. Limited Ice Accumulation Risk late tonight. DISCUSSION... A burst of accumulating snow is expected this evening, especially for areas near and north of I-88 where up to 1 to 3 inches of snow may fall within a short period. This combined with gusty winds could result in sharply reduced visibility and hazardous travel. An additional period of accumulating snow may redevelop across parts of the area late tonight and may mix with or change over to freezing rain and drizzle, especially south of a Pontiac, IL to Rensselaer, IN line. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Saturday... Limited Ice Accumulation Risk. Limited Snow and Sleet Risk. Sunday... Elevated Excessive Cold Risk. Limited Snow Risk. Monday and Tuesday... Elevated Excessive Cold Risk. Wednesday and Thursday... Limited Excessive Cold Risk. DISCUSSION... A wintry mix of precipitation, including rain, freezing rain, sleet, and snow, is possible on Saturday, though confidence in snow, sleet, and icing amounts remains low. Snow showers may then persist into Sunday. Bitterly cold temperatures are expected much of next week, with dangerous wind chills of 20 to 30 below zero possible during the early morning hours of Monday and Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. $$
Hydrologic Outlook
Hydrologic Outlook ILC007-031-037-043-053-063-075-089-091-093-097-099-103-105-111-141- 197-201-INC007-073-089-111-127-142100- Hydrologic Outlook National Weather Service Chicago IL 306 PM CST Thu Feb 13 2025 ...Risk for river ice formation and ice jams will continue into next week... Favorable conditions for river ice development and possible ice jams will arrive tonight into tomorrow and then continue into next week, impacting the Rock, Fox, Des Plaines, and Kankakee river basins. Very cold temperatures, favorable for rapid formation of river ice on most areas rivers, have moved into the region. An additional period of very cold weather is expected to arrive early next week. The formation of heavy river ice cover means that ice jams will be possible in isolated areas, especially along the Rock, Fox, Des Plaines, and Kankakee rivers. Ice jams may cause rises and fluctuations on area rivers with little warning. This outlook means that elevated water levels and potential impacts are possible, but not yet certain. Persons with interests along area rivers should closely monitor the latest forecasts. This product will be updated by tomorrow afternoon. $$ WSL