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It is possible that this page will report a problem where no problem exists. If you believe that this has happened, then please contact me (address at the bottom of this page) and explain clearly why you think this page is in error. Note that any changes that you make may take a few days to show up here, so please give it a week before commenting.
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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 'DW4441' 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=d4441'. 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)
A recently received report from this station was
DW4441>APRS,TCPXX*,qAX,CWOP-3:@191223z0000.00N/00000.00E_306/000g000t062P001h97b10221ws31
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 | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DW9421 | 2.8 miles | Northwest | Silver Spring, MD US (lat 39.0060°, long -77.0328°, altitude 106 metres) (data present) | ||||||||||||||||||||||||||
| EW2391 | 3.1 miles | Southwest | Washington, DC US (lat 38.9497°, long -77.0382°, altitude 81 metres) (data present) | ||||||||||||||||||||||||||
| KM6LJ | 4.3 miles | Southwest | Washington, DC US (lat 38.9280°, long -77.0400°, altitude 49 metres) | ||||||||||||||||||||||||||
| EW2555 | 4.3 miles | Northwest | Wheaton, MD US (lat 39.0350°, long -77.0287°, altitude 105 metres) (data present) | ||||||||||||||||||||||||||
EW2809| 4.6 miles | North | | White Oak, MD US (lat 39.0450°, long -76.9950°, altitude 121 metres)
(data present)
| DW1357 | 4.6 miles | Northeast | | College Park, MD US (lat 39.0090°, long -76.9172°, altitude 29 metres)
(data present)
| DW1189 | 4.8 miles | South | | Washington, DC US (lat 38.9097°, long -77.0058°, altitude 22 metres)
(data present)
| DW2975 | 5.4 miles | Northeast | | Beltsville, MD US (lat 39.0452°, long -76.9425°, altitude 73 metres)
(data present)
| DW6279 | 5.5 miles | West | | Chevy Chase, MD US (lat 38.9662°, long -77.0947°, altitude 98 metres)
(data present)
| DW8056 | 5.9 miles | North | | Colesville, MD US (lat 39.0632°, long -77.0135°, altitude 99 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.