3 products issued by NWS for: De Kalb IL
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Chicago/Romeoville IL 1111 AM CST Mon Jan 20 2025 ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002- 010-011-019-211715- 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- 1111 AM CST Mon Jan 20 2025 /1211 PM EST Mon Jan 20 2025/ This Hazardous Weather Outlook is for portions of north central Illinois...northeast Illinois and northwest Indiana. .DAY ONE...This Afternoon and Tonight. Weather hazards expected... Elevated Excessive Cold Risk. DISCUSSION... An arctic cold air mass will result in wind chills of 5 to 15 below zero this afternoon. Bitterly cold wind chills of 20 to 30 below zero are expected to return tonight into Tuesday morning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Tuesday morning... Elevated Excessive Cold Risk. Wednesday... Limited Excessive Cold Risk. Limited Snow Risk. DISCUSSION... A stretch of bitterly cold weather through Tuesday morning will be accompanied by dangerously cold wind chills of 20 degrees below zero or colder at times. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be necessary through tonight. $$
Hydrologic Outlook
Hydrologic Outlook ILC007-031-037-043-053-063-075-089-091-093-097-099-103-105-111-141- 197-201-INC007-073-089-111-127-211800- Hydrologic Outlook National Weather Service Chicago IL 1154 AM CST Mon Jan 20 2025 ...Risk for ice jams and isolated flooding continues... Favorable conditions for river ice development and possible ice jams are expected through Wednesday morning, impacting the Rock, Fox, Des Plaines, and Kankakee river basins. Bitterly cold temperatures will persist through Wednesday morning. This will make conditions favorable for the rapid formation of river ice on area rivers and tributaries. River ice spotters and river gauge data indicate that most area rivers already have some areas of heavy river ice including a few minor ice jams. New ice jams will be possible along the Rock, Fox, Des Plaines, and Kankakee rivers, including their tributaries. Any ice jam that develops will have the potential to cause rises on area rivers with little warning and isolated areas of flooding are possible. This outlook means that elevated water levels and potential impacts are possible, but not yet certain. Persons along area rivers should continue to monitor the latest forecasts into next week. This product may be updated by Tuesday afternoon. $$
Cold Weather Advisory
URGENT - WEATHER MESSAGE National Weather Service Chicago IL 1055 AM CST Mon Jan 20 2025 ILZ003>005-008-010>012-210100- /O.CAN.KLOT.CW.Y.0001.000000T0000Z-250120T1800Z/ /O.CON.KLOT.CW.Y.0003.250121T0300Z-250121T1800Z/ Winnebago-Boone-McHenry-Ogle-Lee-De Kalb-Kane- Including the cities of Byron, McHenry, Aurora, Algonquin, Rockford, Crystal Lake, Woodstock, Dixon, DeKalb, Elgin, Sycamore, Belvidere, Oregon, and Rochelle 1055 AM CST Mon Jan 20 2025 ...COLD WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON CST TUESDAY... ...COLD WEATHER ADVISORY IS CANCELLED... * WHAT...Very cold wind chills as low as 25 to 29 below expected. * WHERE...Boone, De Kalb, Lee, Ogle, Winnebago, Kane, and McHenry Counties. * WHEN...From 9 PM this evening to noon CST Tuesday. * IMPACTS...The dangerously cold wind chills as low as 25 to 29 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$