2 products issued by NWS for: Arlington Heights IL
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
323 PM CST Thu Mar 5 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-062130-
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-
323 PM CST Thu Mar 5 2026 /423 PM EST Thu Mar 5 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk.
Significant Fog Risk, mainly near Lake Michigan.
DISCUSSION...
Dense fog is expected to persist near the Lake Michigan shore
tonight, and may expand farther inland across northeast Illinois.
An area of showers and thunderstorms may affect areas west of
I-39 late tonight.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...
Elevated Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk in the morning.
Limited Fog Risk in the morning.
Saturday...
Limited Thunderstorm Risk.
DISCUSSION...
A period of showers and embedded thunderstorms are expected
Friday morning and early afternoon. Heavy rain and localized
flooding is possible with these thunderstorms. Additional
isolated thunderstorms are possible late Friday afternoon and
evening, when any stronger thunderstorms may be capable of
producing hail. Another round of scattered strong to potentially
severe thunderstorms are then expected to gradually push across
the region late Friday through early Saturday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 35 mph.
$$
Dense Fog Advisory
URGENT - WEATHER MESSAGE National Weather Service Chicago IL 249 PM CST Thu Mar 5 2026 ILZ006-103-060700- /O.CON.KLOT.FG.Y.0007.000000T0000Z-260306T1200Z/ Lake IL-Northern Cook- Including the cities of Palatine, Gurnee, Des Plaines, Schaumburg, Mundelein, Northbrook, Buffalo Grove, Evanston, and Waukegan 249 PM CST Thu Mar 5 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST FRIDAY... * WHAT...Visibility one quarter mile or less in dense fog near Lake Michigan. * WHERE...Lake IL and Northern Cook Counties. * WHEN...Until 6 AM CST Friday. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Dense fog near the Lake Michigan shore is expected to persist through tonight and may expand farther inland after sunset. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ Kluber