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The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'CW0666' marker) will display the latitude/longitude of that point.
If the displayed location (or elevation) of the weather observing location is incorrect, please drag the marker to the right location (or click in the right location), and then send the updated information. Please note that we are trying to spot either the Stevenson Screen (or equivalent) or the location where the barometric readings are taken.
NOTE: The Registered Location is the location that the station owner provided when they signed up with CWOP. Show location history.
Latitude: dummy (deg min sec), dummy (decimal), dummy (LORAN)
Longitude: dummy (deg min sec), dummy (decimal), dummy (LORAN)
Estimated elevation is dummy metres (dummy feet) from dummy.
Location is dummy (reverse geocoded).
Move marker to new address.
There are no photographs of the station. If you are the site operator and have pictures of this location, then please upload them to Flickr (detailed instructions) and add the two tags 'wxtagged' and 'wx:cwop=c0666'. If the picture is of the weather station itself, then please also add the 'wx:station' tag as well.
Once logged in, click on 'Upload Photos & Video'. Next click on 'Choose Photos and Videos', and walk through the process to upload your pictures. They will automatically be resized appropriately.
After the upload is complete, it will ask you to add titles, tags and descriptions. The key step is to add tags as follows:
If you had to create your account, then you must upload at least five pictures. It will also take longer for your pictures to appear (a week or so). Otherwise, the pictures should appear after 24-48 hours.
You can try to find photographs from the area surrounding the site marker by clicking on Find nearby photographs. (There are some) (There are none) (There may be some) (Automatically loaded if any)
Weather data was seen at findu.com around 1329 days ago on 2008-06-22.
A recently received report from this station was
CW0666>APRS,TCPXX*,qAX,CWOP-3:@201200z3859.46N/07719.96W_t071P000r000p...h97b10031a1w
This report was seems to be a valid APRS record, but not a valid weather record.
If this is not a weather report, then your station may not be transmitting weather reports, and this may be the problem. Check the recent reports at findu.com to see if any look like weather reports.
You can also subscribe to an RSS feed to tell you when new stations come online in this area. Choose either within
100 miles 
or
250 miles .
For stations covered by your Forecast Office: Baltimore/Washington (LWX) .
| Site | Distance | Location | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DW4699 | 1.1 miles | Southwest | Reston, VA US (lat 38.9847°, long -77.3508°, altitude 138 metres) (data present) | |||||||||||||||||||||||||||||||||||||||||
DW3839| 1.9 miles | Northeast | | Great Falls, VA US (lat 39.0131°, long -77.3121°, altitude 116 metres)
(data present)
| DW8601 | 2.0 miles | Northwest | | Herndon, VA US (lat 39.0033°, long -77.3675°, altitude 85 metres)
(data present)
| DW2968 | 2.1 miles | Southeast | | Reston, VA US (lat 38.9672°, long -77.3098°, altitude 89 metres)
(data present)
| DW5776 | 2.9 miles | South | | Reston, VA US (lat 38.9500°, long -77.3200°, altitude 122 metres)
(data present)
| K4AA | 3.1 miles | East | | Great Falls, VA US (lat 38.9970°, long -77.2758°, altitude 90 metres)
(data present)
| DW0851 | 3.3 miles | Northwest | | Great Falls, VA US (lat 39.0347°, long -77.3605°, altitude 98 metres)
(data present)
| CW3816 | 3.9 miles | South | | Reston, VA US (lat 38.9375°, long -77.3125°, altitude 91 metres)
(data present)
| W4MRW | 5.2 miles | Southwest | | Herndon, VA US (lat 38.9344°, long -77.3961°, altitude 119 metres)
(data present)
| DW7107 | 6.1 miles | South | | Oak Hill, VA US (lat 38.9070°, long -77.3651°, altitude 109 metres)
(data present)
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The sites marked above thus did not report continuously during the analysis period, so the offsets may (probably will) not be accurate.
Degrees Minutes Seconds: VWS/VWSAPRS, WeatherLink 5.5, WeatherLink (5.2-5.4), WeatherView (Linux)
Decimal degrees: FreeWX, WeatherView32 (PC application)
LORAN: WeatherDisplay, WUHU, Henriksen WServer
CWOP Guide (PDF): This is a guide to siting and operating a CWOP station. This is a must-read document.
APRS WX Message format: This describes the actual format of the messages transmitted that carry WX information.
WXQC Mailing List: This is a mailing list where data quality issues are discussed. Assistance with software configuration can often be found here.
Topo Map Reading Guide: How to read USGS topographic maps, with a good section on reading contours.
Geographically nearby web pages: Use Geourl to find web pages that deal with locations geographically close to this site.