Melissa Weather Information Hub

Welcome to the City of Melissa’s official weather resource page. Bookmark this page and keep it handy during severe weather. All updates here are verified and come directly from City officials, Collin County partners, and trusted utilities.

Current Weather Situation

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Outdoor Warning Sirens

Melissa’s outdoor sirens are only activated for:

• Tornado warnings

• Sustained damaging winds inside a warning polygon

If you hear sirens, immediately move to shelter and check official sources for details.

Power & Utility Outages

• Grayson Collin Electric Cooperative (GCEC)
  • View the GCEC Outage Map
  • GCEC Report an Outage Map
• ONCOR Electric Delivery Company
  • View the ONCOR Outage Map
  • ONCOR Report an Outage Map

• Traffic Signal Out? Report it here: City of Melissa – Traffic Signal & Streetlight Reporting

Emergency Contacts

• Collin County Non-Emergency Dispatch: 972-547-5350

• For emergencies, always dial 911

Flood Safety

• Never drive into water-covered roadways — Turn Around, Don’t Drown.

• Just 6 inches of moving water can knock a person off their feet.

• Do not attempt to open storm drains or manhole covers.

Stay Connected

• CodeRED Emergency Alerts: Sign up here
  (or text "MELISSATEXAS" to 24639, and a registration link will be sent)

• City Facebook Page: facebook.com/cityofmelissatx

Good Neighbor Moves

• Charge phones and essential medical devices.

• Bring pets indoors.

• Secure trampolines, patio furniture, and trash bins.

• Check on neighbors, especially the elderly or those with mobility issues.

Rumor Control

If you see information elsewhere that doesn’t match official updates, always verify with:

• The City of Melissa website

• Official City of Melissa Facebook page

• CodeRED alerts