MADIS Surface Data (access from NOAA)
Attention: The National Oceanic and
does not own or operate mesonet sites and is not responsible for site
maintenance or data accuracy. Use this data at your own risk.
Data files of the observations plotted may be
obtained from ESRL/GSDs
Assimilation Data Ingest System (MADIS)
Latest change is 26-March-2010.
See the change
details page (in a new window) for further information.
Usage instructions below the display
- Click 'Select Data' if you wish to load a time period other
than the most recent two hours.
- Move the mouse over a station to see its data values.
- Zoom by clicking and dragging the mouse across the region of
- Click on a station to see a (textual for now) 12-h time series.
- Use the 'World' button to see stations beyond the Contiguous
- To show only some networks, use the 'Show/Hide Data'
window. Select or deselect the network(s) you
desire and click "Redisplay".
- (The minimum data spacing is preset to 10 pixels. If
close-together stations are not all showing, you can either
zoom in or adjust the station spacing (with the slider bar to
the lower right of the map).)
Select Data button to
Move the mouse over the map to see the
geographic coordinates, the station name and weather information.
- select a time range
- select the number of hours to check. (The
most recent report in the time range checked will be displayed.)
- the data will be loaded and displayed when you
Drag (move the mouse while holding
down button 1) to choose an area in which to zoom. (The zoom
will occur as soon as the mouse button is released.) Undo zooming by
reset map button.
Click on a station to display a 12-hour time series
for that station in a separate window. (Close the window in the
normal way when you are done, or use the
button to close all time history windows.
Choose to display counties, highways, rivers,
and/or airports by clicking the
(Image rendering is faster when fewer lines are displayed, so you may
wish to only display these after you have zoomed in.)
Drag the balls on the Temperature or Wind Speed bars
to hide all data except those in the range(s) you have selected.
Click on a bar to reset the range to its original value.
Drag the ball on the 'Spacing' bar to change the
minimum distance between stations shown, in pixels.
Show/Hide Data button to display or hide
individual mesonets after the data have been loaded.
Show Special button to show values, stations with
missing T (shown in green), and/or stations with bad T (shown in
Quality Control Codes used by
The quality control code shown after the temperature in the history
window that comes up when you click on a station is one of the
Z = "No QC applied"
Stage definitions are the following
C = "Passed QC stage 1"
S = "Passed QC stages 1 and 2"
V = "Passed QC stages 1, 2 and 3"
X = "Failed QC stage 1"
Q = "Passed QC stage 1, but failed stages 2 or 3 "
G = "Included in accept list"
B = "Included in reject list"
- observation validity checks
- temporal and internal consistency checks
- spatial consistency checks
Please address questions about the data on this page to
Patty Miller of the
Specific questions about the CWOP or ARPSWXNET program may be
addressed to Russ Chadwick.
Last modified: Thu Dec 4 21:03:20 GMT 2014