METAR Information for KT82 (T82) in Fredericksburg, Gillespie County Airport, TX, United States (site inactive)

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	← Move left → Move right ↑ Move up ↓ Move down + Zoom in - Zoom out Home Jump left by 75% End Jump right by 75% Page Up Jump up by 75% Page Down Jump down by 75% For development purposes only Sorry, we have no imagery here. For development purposes only Sorry, we have no imagery here. For development purposes only Sorry, we have no imagery here. For development purposes only Sorry, we have no imagery here. For development purposes only Sorry, we have no imagery here. For development purposes only Sorry, we have no imagery here. KT82 EW8476 CW9790 DW9750 N5ZKK EW1067 FW9766 EW0158 FW8366 EW1979 DW0354 GW2822 FW4749 DW3766 FW7339 FW9364 FW7587 GW3868 W5MAI EW2327 N0PFE-1 FW0613 GW3533 FW3936 GW0683 FW2272 GW3984 GW2975 DW3765 FW5359 EW8332 GW0058 EW4824 FW3791 EW4650 FW1249 GW0483 CW1627 EW6466 FW6253 GW1288 CW3728 EW4792 DW7745 EW6460 FW7988 FW2996 KI5RAB W1MDM-13 FW2125 FW1542 FW9848 GW6021 AF5LA NQ9B FW8761 FW6098 GW1201 EW6623 FW7040 FW2312 DW7721 EW1440 EW4907 EW3675 FW8733 DW9852 EW1049 EW4538 GW3180 GW2259 N6ROE EW3767 GW4266 GW5789 EW3105 EW6170 W5HKR DW5690 KF5FGL W5WDV CW3468 DW9728 FW7473 GW3808 GW2126 GW2129 FW9212 FW6030 EW9273 FW7818 FW4466 CW4490 N7MLR CW0133 FW6832 FW0637 GW1907 GW3425 FW3748 EW5349 To navigate, press the arrow keys. Keyboard shortcuts Map DataImage may be subject to copyright 100 m  Click to toggle between metric and imperial units Terms Report a map error This page can't load Google Maps correctly. Do you own this website? OK
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Registered Location

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'KT82' 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: -- please choose Yes Almost -- can see instruments No -- no instruments to be seen No -- cannot zoom in to see Not sure what instruments look like

The location information for this site was gathered from 12 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.

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)

Data Status

Recent observations from this weather station can be downloaded as a CSV file suitable for importing into various spreadsheet programs: last 7 days, last 14 days, last 28 days, last 56 days. This data can also be linked directly from Excel using a Web Query. The main link goes to the page with the data on it, and the IQY link is the Web Query that will access it: last 7 days (IQY: last 7 days), last 14 days (IQY: last 14 days), last 28 days (IQY: last 28 days), last 56 days (IQY: last 56 days).

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.

You can also see how this station compares with other stations.

Barometer

Average barometer error: 0.1 milliBars Error standard deviation: 0.4 milliBars

MADIS rating

Latest daily graph:

These values are within range, so your sensor is probably calibrated correctly.

Temperature

24 hours   Day time   Night time Average temperature error 1.6 °F 0.4 °F 2.0 °F Error standard deviation 2.4 °F 1.7 °F 2.5 °F 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.

MADIS rating

Latest daily graph:

These values are within the acceptable range. This probably means that your sensor is sited correctly and is calibrated correctly.

Dewpoint -- or switch to Relative Humidity

24 hours   Day time   Night time Average dewpoint error 1.1 °F 2.3 °F 0.4 °F Error standard deviation 2.1 °F 2.0 °F 1.8 °F 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.

MADIS rating

Latest daily graph:

These values are within the acceptable range. This probably means that your sensor is sited correctly and is calibrated correctly.

Wind Vector

The wind vector is the average wind over the relevant period. Note that if the wind blows North for half the time at 2 knots, and then blows South for the other half of the time at 2 knots, then the result is zero -- i.e. North wind and South wind will cancel out. Over time, the direction of the wind and of the analysis should match pretty well. If the lengths of the vector are different, then it could mean either that your anemometer reads high or low, or that you are in a more shielded or more open space.

MADIS rating Sensor fails following checks: L3 Spatial Consistency

Today		Last 7 days

Neighboring Stations

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.

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: Austin/San Antonio (EWX) .

Quality Control Notes

The 'MADIS rating' reports on the percentage of observations that pass the MADIS checks. You should aim for two thumbs up!

Location Formats

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

Resources

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.