Union County (Ohio) Emergency Management Agency

07/21/2026

07/21/2026

Severe Thunderstorm Warning including Delaware OH, Marysville OH and Sunbury OH until 2:45 PM EDT

07/21/2026

[2:02 PM] Severe Thunderstorm Warning including Delaware OH, Marysville OH and Sunbury OH until 2:45 PM EDT

07/21/2026

[1:12 PM] Severe Thunderstorm Watch valid until 8 PM.

07/21/2026

We have a chance of some severe weather throughout the day today. Make sure you have multiple ways to receive weather alerts.

Thunderstorms will develop ahead of an approaching cold front today. While some storms will be possible this morning, the better chance for severe weather will be this afternoon into this evening. Damaging winds will be the main threat along with the potential for locally heavy rainfall.

07/17/2026

Sharing the wise words from our UCHD friends.

A statewide air quality alert is in effect today. Union County and much of central Ohio will be in the Unhealthy to Very Unhealthy range for much of today. This means there is a significant concentration of particulate matter (very, very tiny particles) in the air. These tiny particles can be inhaled deep into your lungs, and some may even get into your bloodstream. Numerous scientific studies have linked particle exposure to a variety of health problems, including decreased lung function and irregular heartbeats.
Here's what you can do today:
👉 Limit time outdoors. Consider rescheduling outdoor activities or moving them indoors.
👉 Avoid strenuous outdoor activities. especially those with heart disease and respiratory conditions like asthma. Watch for symptoms including wheezing, coughing, chest tightness, dizziness, or burning in the nose, throat, and eyes.
👉 Keep windows and doors closed.
👉 Run air conditioning on recirculate if possible.

Keep tabs on our air quality at https://www.airnow.gov/?city=Marysville&state=OH&country=USA

*Photo credit goes to our friend, Jason S... he snapped this pic this morning driving thru Marysville's Uptown.

07/17/2026

Wildfires to the northwest of Lake Superior have created a large plume of smoke that is bringing reduced air quality to parts of our area. The smoke will push southwest this morning, potentially reaching parts of the Tri-State Region, before retreating off to the east during the afternoon and evening.

07/15/2026

It's going to be hot again. Please take precautions if you are going to be outside. Please check on your neighbors.

It will be hot and humid for the next couple of days which will result in heat indices around 100. This could lead to heat exhaustion. The heat index will not be quite as high heading into the latter part of the week as clouds increase and the chance of showers and storms returns.

07/03/2026

We want to extend our sincere thanks to our Emergency Management volunteers who assisted with firefighter rehab services at a house fire last night.
Even at 9:00 p.m., the heat index remained above 90 degrees, making firefighter rehab especially critical. Providing a designated rehab area with seating, misting fans, and plenty of hydration helps firefighters cool down, recover, and safely return to service after working inside the structure or spending extended periods on scene.
We are incredibly grateful for the dedication of our volunteers, who are always ready to serve our county, day or night. Thank you for everything you do to support our firefighters and our community!