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:
If you hear sirens, immediately move to shelter and check official sources for details.
Power & Utility Outages
- Grayson Collin Electric Cooperative (GCEC)
- ONCOR Electric Delivery Company
Emergency Contacts
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
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: