The National Weather Service (NWS) and the Storm Prediction Center (SPC) have issued a severe thunderstorm watch for a large portion of southeastern Wisconsin, effective until 6 p.m. CDT on Monday. The watch encompasses ten counties, where residents are urged to prepare for potentially hazardous weather conditions, including heavy rain, frequent lightning, and damaging winds.
The affected counties are Dodge, Jefferson, Kenosha, Milwaukee, Ozaukee, Racine, Rock, Walworth, Washington, and Waukesha. According to a report from WISN 12 News, a line of scattered showers and thunderstorms is currently moving eastward across the state and extends into northern Illinois. Meteorologists are tracking this initial round of storms and anticipate a second, potentially more impactful, line of storms to develop and arrive during the evening commute.
While current storm activity is reported to be below severe limits, forecasters warn that conditions are ripe for intensification. The primary threats associated with these developing storms are heavy downpours, which could lead to localized flooding, frequent lightning, and the possibility of strong wind gusts. There is also a potential for isolated spin-up conditions.
Understanding the Difference: Watch vs. Warning
It is crucial for residents to understand the distinction between a weather watch and a warning. The National Weather Service uses these terms to communicate different levels of urgency.
- A Severe Thunderstorm Watch, like the one currently in effect, means that conditions are favorable for severe thunderstorms to develop in and near the watch area. It is a signal to “Be Prepared.” A watch typically covers a large area, such as multiple counties, and is issued hours before severe weather is expected.
- A Severe Thunderstorm Warning is more urgent and means that severe weather is imminent or already occurring, having been detected by radar or reported by storm spotters. This is a signal to “Take Action!” and seek shelter immediately. A warning covers a much smaller, specific area directly in the storm’s path.
A thunderstorm is officially classified as severe by the NWS if it produces wind gusts of at least 58 miles per hour, hail of one inch in diameter or larger, or a tornado. These conditions can cause significant damage to property, including roofs and vehicles, and can down trees and power lines.
Safety and Preparedness Recommendations
With severe weather possible, officials advise residents to take precautionary measures. During a watch, it is a good time to review your family’s emergency plan and ensure you have multiple ways to receive weather alerts, such as a NOAA Weather Radio or mobile phone notifications.
Residents should also secure any loose outdoor objects, such as patio furniture, trash cans, and decorations, as these can become dangerous projectiles in high winds. It is also recommended to bring pets indoors.
If a severe thunderstorm warning is issued for your specific location, you should take shelter immediately. The safest place is in a sturdy building, on the lowest floor, and in an interior room away from windows and doors. During a storm, avoid using corded phones, electrical equipment, and plumbing, as lightning can travel through these systems. Postpone any outdoor activities until the storms have safely passed.
Residents throughout southeastern Wisconsin should remain vigilant and monitor local weather forecasts throughout the afternoon and evening. Being prepared to act quickly if a warning is issued is key to staying safe during severe weather events.
