Showing posts with label stream flow. Show all posts
Showing posts with label stream flow. Show all posts

Tuesday, August 19, 2014

Maricopa county flood control rainfall and runoff links -- Phoenix area heavy ppt and runoff August 19, 2014

Dramatic weather today! Looks like as much as 4” rainfall in the last 24 hours in the northern part of Maricopa County drove lots of exciting runoff.


ABC 15 picture of flooded roads near New River AZ.

Here are a couple of links from the Maricopa County Flood Control District for a data-oriented view of rainfall and runoff:
http://www.fcd.maricopa.gov/Rainfall/rainfall.aspx -- main page.
http://www.fcd.maricopa.gov/Rainfall/Raininfo/raininfo.aspx -- links to tabular rainfall reports.
http://alert.fcd.maricopa.gov/alert/Google/v3/wx.html -- this is a good data page (Mobile version. Click on the Dataset tab and you can see some different maps (1 day rainfall or Streamflow data for example). Click on a station and a little window will popup and you can see various measures versus time. There is a “plot” link at the bottom of the popup and you can see a plot of precip or streamflow versus time at that sensor.
For example, I see the 5568 Skunk Creek at I-17 pressure transducer indicates more than 12,500 cubic feet per second today about 10 am (this link on the sensor suggests that 12,100 cfs is the 25 yr flood).

If you click on the layers tab, you can see a number of different data products including those from radar.

There is another page that makes maps: http://www.fcd.maricopa.gov/Rainfall/ALERT/rainMaps.aspx -- select a map and then click make map and you can then click on a gage to see some tabular data.

Both sites are a bit clunky but can be entertaining. The Flood Control District maintains a pretty impressive sensor network.

Other links:
rainlog -- community contributed rainfall data
Maricopa County Community collaborative rain, hail, and snow network

Sunday, August 28, 2011

USGS real time stream gages and Hurricane Irene effects of streamflow

The US Geological Survey real time stream gages are nicely reflecting the passage of high precipitation associated with Hurricane/Tropical storm/depression Irene: http://waterdata.usgs.gov/nwis/rt. The dots on the map show a general view of the state of flow and many black ones indicating high flow are in the northeast. (USGS Hurricane Irene resources).





If you click on a state (e.g., Pennsylvania) you can zoom in and then click on a particular gage to see the current flow state and its change with time (hydrograph) and build your own graphs, etc.

Here is the page for the Conestoga River at Lancaster, PA which at least right now (Sunday afternoon August 28, 2011) is on the steep rising limb of the hydrograph:





Location is here at this link

This is a critical USGS function that is under threat of severe reduction due to budget cuts.

I noticed that sometimes you have to reload a few times or just wait for the main map to appear. I don't know if they are getting heavy loads due to public interest or what is going on.

Hat tip to Michelle Cooke for this idea.