Frequently Asked Questions : Mapping


NEW - CoCoRaHS Interactive Map!

Learn about the features offered and tips on how to use the map, or watch the short video tutorial here.

Want to know more about all of the features we've added, bugs we've fixed, and what's still yet to come? Read about it here.


Additional Mapping FAQ's

How often are the precipitation maps generated?
All Daily Maps are regenerated every five minutes.

Where are the road names?The Classic ("Static") Maps are designed to be minimal.  If you desire interactive maps with more labels, try the Interactive Map.

Why doesn't my data doesn't show up on any of the maps?

  • Since maps are only created every five minutes, you may need to wait a few minutes and check again.
  • The maps also only include data where the time of observation is between 4:30am and 9:30am (data can be ENTERED at any time - but the "time of observation" is the time when you observed your gauge).
  • If your time of observation is outside of that window, then your data won't be on the daily map, however you can still view your data on the Interactive Map when selecting a date range instead of a single day.
  • It is also possible that we have incorrect longitude and latitude for your station. If that is the case, please contact the Help Desk ( 

If my station isn't showing up on any of the maps, is my data being lost?No, all data are saved in our database, regardless of the maps.