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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 'BSDW4' 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.
Can you help with location quality? Please indicate if the marker on the map points at the weather instrument cluster:
The location information for this site was gathered from 2 data sources. The source which most closely matches the consensus is chosen. Many of these sources only report the location to the nearest minute (or hundredth of degree). This can lead to the marker being placed noticeably incorrectly. Please see Discussion of Location Errors for more information. 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.
The station (or view from the station) is shown here. You can choose the view direction to see the surroundings. Other information (and somewhat larger images) can be found by clicking on the picture.
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)
All the means and standard deviations shown below are from the last 28 days. Change analysis period to Last 3 days Last 7 days Last 14 days Last 8 weeks Last 13 weeks Last 26 weeks Last 39 weeks Last 52 weeks
NOTE: If the error above is POSITIVE, then it means that the analysis temperature is HIGHER than the reported temperature. This means that your sensor is reading COLDER than expected. |
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Latest daily graph:
These values are within the acceptable range. This probably means that your sensor is sited correctly and is calibrated correctly.
You can look at those for comparison purposes. The average difference between your station and each station below is listed as well. This may allow you to detect local stations which are erroneous. You can also use these numbers to adjust your instruments -- especially if a number of ASOS stations have similar differences to your station. Also, try increasing the analysis period to more than the default 28 days. The difference is only given if both stations report reasonably often during each day. Some stations only report every 6 hours, and this makes the average of less interest. In this case, the average is not displayed. The values reported are the differences between this station and the neighboring station. I.e. if the difference is positive, then this station is reading higher than the neighboring station. Since this station has not been reporting continuously during the analysis period (it missed 24 days out of 28), the offsets below may not be accurate.
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: Riverton (RIW) .
| Site | Distance | Location | Barometer | Temperature | Dewpoint | ||||||||||||||||||||||||||
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| DW5092 | 31.1 miles | East | Sheridan, WY, US (lat 44.7575°, long -106.9580°, altitude 1173 metres) | ||||||||||||||||||||||||||||
| CW7283 | 31.1 miles | East | Sheridan, WY, US (lat 44.8122°, long -106.9763°, altitude 1174 metres) | ||||||||||||||||||||||||||||
| DW7699 | 33.4 miles | East | Story, WY, US (lat 44.5667°, long -106.9222°, altitude 1646 metres) | ||||||||||||||||||||||||||||
| FW6148 | 41.8 miles | East | Banner, WY, US (lat 44.6358°, long -106.7337°, altitude 1285 metres) | ||||||||||||||||||||||||||||
| GW2742 | 46.2 miles | West | Byron, WY, US (lat 44.7992°, long -108.5057°, altitude 1226 metres) | ||||||||||||||||||||||||||||
| GW1458 | 48.3 miles | Southeast | BUFFALO, WY, US (lat 44.3640°, long -106.7063°, altitude 1425 metres) | ||||||||||||||||||||||||||||
EW6294| 73.7 miles | West | | Fort Collins, CO, US (lat 44.5179°, long -109.0610°, altitude 1555 metres)
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| CW8386 | 78.5 miles | Southwest | | Thermopolis, WY, US (lat 43.6428°, long -108.2270°, altitude 1347 metres)
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| GW3664 | 94.0 miles | Northwest | | BILLINGS, MT, US (lat 45.8027°, long -108.6650°, altitude 1035 metres)
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| CW9321 | 98.8 miles | Northwest | | Columbus, MT, US (lat 45.6210°, long -109.1040°, altitude 1263 metres)
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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.
The 'MADIS rating' reports on the percentage of observations that pass the MADIS checks. You should aim for two thumbs up!
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 Siting Guide (PDF): This is a guide to siting and operating a CWOP station. This is a must-read document.
Another CWOP Guide (PDF): This is another guide to siting and operating a CWOP station. This is a must-read document.
Urban Siting and Operations (PDF): This is a guide to siting and operating a CWOP station in an urban environment.
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.
