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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 'CW7504' 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.
Latitude: dummy (deg min sec), dummy (decimal), dummy (LORAN)
Longitude: dummy (deg min sec), dummy (decimal), dummy (LORAN)
Estimated elevation is dummy meters (dummy feet) from dummy.
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=c7504'. If the picture is of the weather station itself, then please also add the 'wx:station' tag as well.
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)
Status: Status: None found.Clicking on the map above will redo the search centered on the clicked point.
Clicking on the map above will redo the search centered on the clicked point.
The last 24 hours of weather data can be viewed at Findu. This page also provides access to the raw APRS packets and various other APRS related tools.
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
By default, the longer analysis periods display graphs that show the long term performance of this station. The graphs show the mean error over time, and include error bars which are one standard deviation long. This provides an easy way to see if there are any underlying trends in the data. Note that a 'step' in your data does not (necessarily) mean that something happened to your station. It could mean that another station came online in the local area, and they are changing the analysis.
The analysis is performed by MADIS. This web page just provides visualization of the data that MADIS produces. There are a number of very knowledgeable people who participate on the WXQC Mailing List who do understand exactly how MADIS works and can resolve issues when the analysis seems to be broken. However, in most cases, the station readings are at fault, or the software that is transmitting the data to CWOP. Please check those paths first.
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Latest daily graph:
These values are within range, so your sensor is probably calibrated correctly.
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:
It appears that your station is sited in a location where cool air collects at night. This is often near the bottom of a valley. The cool nighttime readings are probably correct, and the analysis values are not taking into account the local topography.
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.
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: Atlanta (FFC) .
| Site | Distance | Location | Barometer | Temperature | Dewpoint | ||
|---|---|---|---|---|---|---|---|
| KDNN | 9.7 miles | Northeast | Dalton, GA, United States (lat 34.7229°, long -84.8702°, altitude 216 meters) | 0.1mb | 4.0°F | -0.0°F | |
| KRMG | 22.7 miles | South | Rome/russell, GA, United States (lat 34.3506°, long -85.1580°, altitude 196 meters) | 0.2mb | 4.0°F | 1.2°F | |
| CW9312 | 24.5 miles | Northwest | Rossville, GA US (lat 34.9119°, long -85.3243°, altitude 306 meters) | 1.1mb | 1.6°F | 1.4°F | |
| KCHA | 28.0 miles | North | Chattanooga/love, TN, United States (lat 35.0353°, long -85.2038°, altitude 210 meters) | 0.0mb | 2.4°F | 1.4°F | |
| KG4GJX | 32.6 miles | North | Harrison, TN US (lat 35.1237°, long -85.1155°, altitude 264 meters) | -0.4mb | 0.4°F | 1.3°F | |
| N4DRV | 34.3 miles | North | Hixson, TN US (lat 35.1332°, long -85.2003°, altitude 289 meters) | -0.6mb | 1.0°F | 2.4°F | |
| CW3732 | 35.0 miles | Northwest | Trenton, GA US (lat 34.8918°, long -85.5702°, altitude 485 meters) | 1.1mb | -0.2°F | 2.3°F | |
| CW9747 | 35.2 miles | East | Cherrylog, GA US (lat 34.7830°, long -84.4219°, altitude 467 meters) | 5.5mb | -1.2°F | 2.0°F | |
| KB4BSA-8 | 35.5 miles | West | Mentone, AL US (lat 34.5228°, long -85.6237°, altitude 538 meters) | 0.0°F | -3.4°F | ||
| CW6744 | 35.6 miles | East | Jasper, GA US (lat 34.5312°, long -84.4177°, altitude 504 meters) | -0.2mb | -1.5°F | 1.1°F |
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 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.
