ALERT Alarms

MHFD’s Email Subscription Service


Boulder CountySubscribeUnsubscribe
Douglas CountySubscribeUnsubscribe
Jefferson CountySubscribeUnsubscribe
Denver & PlainsSubscribeUnsubscribe
All StationsSubscribeUnsubscribe

Alarm notifications are sent whenever a gauge measurement exceeds one or more of the following rainfall rate thresholds:

  • 0.5” in 10-minutes
  • 1” in 1-hour
  • 3” in 2-hours
  • 5” in 6-hours
  • 5″ in 24-hours
  • 10″ in 72-hours
  • Additional lower thresholds apply to burn areas.


Douglas CountySubscribeUnsubscribe
Englewood & Holly DamsSubscribeUnsubscribe
Bear CreekSubscribeUnsubscribe
Boulder CreekSubscribeUnsubscribe
Cherry CreekSubscribeUnsubscribe
Lena GulchSubscribeUnsubscribe
Ralston CreekSubscribeUnsubscribe
Saint Vrain CreekSubscribeUnsubscribe
Westerly CreekSubscribeUnsubscribe



The above lists provide a convenient way for you to automatically receive alarms from the ALERT System. Click on the subscribe or unsubscribe link and your browser automatically creates a join or leave email request. Then just send the email without adding any additional content. You may subscribe to as many lists as you like.

IMPORTANT…Your email subscription request must be sent from the email address you wish to subscribe or unsubscribe. Smartphone users are encouraged to first try the Pushover app, or if you prefer to subscribe your cellphone to receive text messages, email the list administrator noting:

  1. List(s) you wish to subscribe to
  2. Your cell phone number
  3. Your service provider

Join the Front Range ALERT Users Group (FRAUG) email subscription list to receive information about system updates and new webpage features. After your request is approved you will begin receiving periodic information about the ALERT System. All replies will be moderated, so it may take some time before any reply is actually sent. Please do not use  ‘Reply All’ unless you intend everyone on the list to read your reply.

MHFD's Real-Time Flood Detection & Prediction