Chicago

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Severe Weather Alerts

Explanation of how to stay informed about severe weather alerts or emergency weather conditions in Chicago.

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Comprehensive Guide to Severe Weather Alerts in Chicago, United States

Chicago, located in the Midwest region of the United States, experiences a wide range of weather conditions throughout the year, including severe weather events. Understanding the types of severe weather alerts, how to stay informed, and what to do during these events is crucial for both visitors and residents. Below is a detailed guide to help you navigate severe weather in Chicago.

1. Types of Severe Weather Alerts in Chicago

The National Weather Service (NWS) issues weather alerts for Chicago and the surrounding areas. These alerts are categorized based on the type and severity of the weather event. Below are the most common types of severe weather alerts you may encounter:

a. Winter Weather Alerts

  • Winter Storm Watch: Conditions are favorable for a winter storm (heavy snow, ice, or sleet) within the next 24-48 hours. Prepare for potential disruptions.
  • Winter Storm Warning: A winter storm is imminent or occurring. Expect hazardous travel conditions and possible power outages.
  • Blizzard Warning: Sustained winds of 35 mph or higher with significant snowfall and reduced visibility (less than 1/4 mile) for at least three hours.
  • Wind Chill Advisory/Warning: Dangerously low wind chills that can cause frostbite or hypothermia in minutes.

b. Severe Thunderstorm Alerts

  • Severe Thunderstorm Watch: Conditions are favorable for severe thunderstorms, which may include damaging winds, hail, and lightning.
  • Severe Thunderstorm Warning: A severe thunderstorm is occurring or imminent. Seek shelter immediately.

c. Tornado Alerts

  • Tornado Watch: Conditions are favorable for tornadoes to develop. Stay alert and be prepared to take shelter.
  • Tornado Warning: A tornado has been spotted or indicated by radar. Take shelter immediately in a safe location.

d. Flood Alerts

  • Flood Watch: Conditions are favorable for flooding. Monitor local updates and prepare to move to higher ground if necessary.
  • Flood Warning: Flooding is occurring or imminent. Take action to protect yourself and your property.
  • Flash Flood Warning: Rapid flooding is occurring or expected. This is a life-threatening situation; move to higher ground immediately.

e. Heat and Air Quality Alerts

  • Excessive Heat Watch/Warning: Dangerously high temperatures and humidity levels that can cause heat-related illnesses.
  • Air Quality Alert: Poor air quality due to pollution or wildfire smoke, which can affect sensitive groups (e.g., children, elderly, or those with respiratory conditions).

f. Lakefront Alerts

  • Lakeshore Flood Warning: High winds and waves on Lake Michigan can cause flooding along the shoreline.
  • Beach Hazard Statement: Dangerous swimming conditions due to rip currents or high waves.

2. How to Stay Notified of Severe Weather Alerts

Staying informed is critical during severe weather. Here are the best ways to receive timely updates:

a. Mobile Apps and Alerts

  • Wireless Emergency Alerts (WEA): Automatically sent to your smartphone for life-threatening weather events (e.g., tornado warnings).
  • Weather Apps: Download apps like the National Weather Service (NWS), AccuWeather, or The Weather Channel for real-time updates.
  • City of Chicago NotifyChicago: Sign up for free emergency alerts via text, email, or phone at NotifyChicago.

b. Local News and Radio

  • TV Stations: Local channels like ABC7 Chicago, NBC5 Chicago, and WGN provide live weather updates.
  • NOAA Weather Radio: A dedicated weather radio provides 24/7 updates directly from the National Weather Service.
  • AM/FM Radio: Tune in to local stations like WBBM Newsradio 780 AM for emergency updates.

c. Social Media

  • Follow the National Weather Service Chicago office on Twitter (@NWSChicago) for real-time updates.
  • Check the City of Chicago’s official social media accounts for emergency information.

d. Outdoor Warning Sirens

  • Chicago has a network of outdoor warning sirens that sound during tornado warnings or other life-threatening emergencies. These sirens are tested on the first Tuesday of every month at 10:00 AM.

3. Procedures to Follow During Severe Weather

a. Tornadoes

  • Before: Identify a safe shelter, such as a basement or an interior room on the lowest floor of a sturdy building. Avoid windows.
  • During: If indoors, go to your designated safe area. If outdoors, lie flat in a low-lying area and cover your head. Avoid vehicles and overpasses.
  • After: Stay tuned to local updates and avoid damaged areas.

b. Severe Thunderstorms

  • Before: Secure outdoor objects that could become projectiles.
  • During: Stay indoors and away from windows. Avoid using electrical appliances.
  • After: Watch for downed power lines and report outages to ComEd (1-800-334-7661).

c. Winter Storms

  • Before: Stock up on food, water, and emergency supplies. Keep your vehicle’s gas tank full.
  • During: Stay indoors and avoid unnecessary travel. If driving is essential, keep an emergency kit in your car.
  • After: Clear snow and ice from sidewalks (required by city ordinance) and check on neighbors.

d. Flooding

  • Before: Know your flood risk and have an evacuation plan.
  • During: Avoid walking or driving through floodwaters. Just six inches of moving water can knock you down, and one foot can sweep away a vehicle.
  • After: Avoid flood-damaged areas and be cautious of contaminated water.

e. Heatwaves

  • Before: Identify cooling centers in your area (e.g., libraries, community centers).
  • During: Stay hydrated, avoid strenuous activities, and check on vulnerable individuals.
  • After: Continue to monitor for heat-related illnesses.

4. Associated Costs of Severe Weather Preparedness

Most severe weather alerts and notifications are free of charge. However, there may be costs associated with preparedness and recovery:

  • Emergency Supplies: Flashlights, batteries, non-perishable food, bottled water, and first aid kits.
  • Weather Radios: NOAA weather radios cost $20-$50.
  • Home Repairs: Flooding or storm damage may require costly repairs. Consider renter’s or homeowner’s insurance with weather-related coverage.
  • Transportation: Evacuation or relocation may incur travel expenses.

5. Neighborhood and Local Considerations

a. Lakefront Areas

  • Neighborhoods near Lake Michigan (e.g., Edgewater, Rogers Park, South Shore) are more prone to lakeshore flooding and beach hazards. Pay attention to lakefront-specific alerts.

b. Downtown and High-Rise Buildings

  • High winds can be more dangerous in areas with tall buildings, such as the Loop or River North. Avoid walking near construction sites during wind advisories.

c. Suburban Areas

  • Suburbs like Naperville, Schaumburg, and Oak Lawn may experience more open exposure to tornadoes and severe thunderstorms. Ensure you have a safe shelter plan.

d. Public Transit

  • Severe weather can disrupt Chicago Transit Authority (CTA) buses and trains, as well as Metra commuter rail services. Check for service updates on the CTA website or Metra’s alert system.

6. Additional Resources

By staying informed and prepared, you can safely navigate Chicago’s severe weather events. Always prioritize safety and follow official guidance during emergencies.