NOAA's Forecast Systems Laboratory Display of
METAR Data
- Weather data values are shown above the map
- Click on a station to see the raw METAR report in a separate window
- Zoom by clicking and dragging
- Non-reported temperatures show as > 999°
- Detailed instructions are below the applet
Latest code is 29-June-99. To update to this
version, simply restart Internet Explorer, or for Netscape, hold
down your shift key and click reload .
Warning: These data are experimental, and are not
always accurate. We update incorrect METAR locations based in part on
user input. So, if you notice a misplaced station
please notify
us. If you notice a
station that appears to be producing erroneous data, please notify the
ASOS Operations and Monitoring Center
(AOMC)
Instructions
Move the mouse over the map to see the
geographic coordinates, the station name and weather information.
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.) You can also
zoom and roam by using the
overview
window. Undo zooming and roaming by clicking the un-zoom
or reset button.
Choose to display weather information, counties
and/or rivers by clicking the appropriate buttons.
(Image rendering is faster when fewer lines are displayed, so you may
wish to only display these after you have zoomed in.)
Click on a station to display its raw METAR report in
a separate window.
Click on the color bar to hide all data except those
corresponding to the color you have selected. The other colors will
be x-ed out on the color bar. Or, click and drag on the color
bar to show only a range of data. Click on any non-x-ed out
color on the color bar to show all data again. (I think
the colors
are terrible. If you have a better color table, please send it to
me.)
The Refresh button reads new data. The data files
are created at the top of each hour and contain METARs having
observation times within a time window from 15 minutes before the
hour, to 44 minutes after the hour. This file is updated at 5, 10, 15,
20, 25, 30, and 45 minutes after the hour.
More information.
Prepared by Bill Moninger,
Bill.Moninger@noaa.gov,
303-497-6435
Last modified: Mon Nov 24 09:06:44 MST 2003