Denison hurricane guide¶

Denison is an inland city in Grayson County. The city's emergency management page says it works closely with the Grayson County Office of Emergency Management, which is the main link to the state and FEMA in a major event. The city sends alerts through Denison Alerts and the Grayson County CodeRED system. For county agencies, see the Grayson County page.

Official website: denisontx.gov

What to know in Denison¶

• Denison runs five outdoor warning sirens for tornado warnings, high winds, and large hail. The city says that if you hear them you should find shelter indoors away from windows, and not call 911 to ask why they sounded.

Emergency and information numbers¶

Official alerts and information¶

• Denison Alerts: Free city alerts by text and email, including street and water notices. Website.
• Grayson County CodeRED: Free county emergency calls, linked from the city's emergency notifications page. Website.
• Denison Emergency Management: The city's emergency management page. Website.

County services that cover Denison¶

Grayson County manages evacuation zones, evacuation centers, and emergency alerts for everyone who lives in Denison. The Grayson County guide has the full list of county numbers, radio stations, and recovery help.

• Grayson County CodeRED: Free alerts by phone call, text, or email from Grayson County and its sixteen cities. Sign up before a storm. Save caller ID 1-206-536-3695 to recognize alerts. Website.

Related guides¶

• Should I evacuate?
• What to expect at a hurricane shelter
• Hurricane supply list
• After a hurricane: the first 24 hours
• Insurance claims and disaster aid

Sources¶

Checked on October 10, 2026. If a number or address here is wrong, please tell us at Keith@KMyers.me.

• https://www.denisontx.gov/694/Emergency-Notifications
• https://www.denisontx.gov/
• https://www.denisontx.gov/446/Police-Department
• https://www.denisontx.gov/354/Streets
• https://www.denisontx.gov/136/Alerts-Notifications
• https://www.denisontx.gov/692/Emergency-Management