CWOP Information for KQ6DI-1 (AV268) in Groveland, CA, US (site inactive)

The following information is known about KQ6DI-1. If you think that any information is incorrect, then please follow the instructions for correcting that data item.

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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Registered Location

Latitude: 37° 52' 3" N (deg min sec), 37.8674° (decimal), 3752.04N (LORAN)
Longitude: 119° 52' 9" W (deg min sec), -119.8692° (decimal), 11952.15W (LORAN)
Elevation: 1384 metres (4541 feet) -- validated against 1382 metres (4534 feet) from Google
Location: Groveland, CA, US
County: Tuolumne, CA
Forecast Offices: San Joaquin Valley (HNX), Sacramento (STO)
Weather station Manager/Operator: Arnold
Station type/software: Kantronics KPC-3 Ver 9.1, PEET Ultimeter

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'KQ6DI-1' 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.

Date	Latitude	Longitude	Elevation	Name
2017-03-13	37.8647	-119.8647	1384	Groveland, CA, US
2017-03-14	37.8674	-119.8692	1384	Groveland, CA, US

The position of the clicked point on the map is:

The position of the 'KQ6DI-1' marker on the map is:

Latitude: dummy (deg min sec), dummy (decimal), dummy (LORAN)
Longitude: dummy (deg min sec), dummy (decimal), dummy (LORAN)

There are no photographs of the station. If you are the site operator and have pictures of this location, then please email them to av268@photo.gladstonefamily.net.

Picture Submission

There are two ways to submit pictures. If you are a flickr user, then see the flickr section below. Otherwise you can simply email the pictures as follows:

Email the pictures to av268@photo.gladstonefamily.net.
If you use a smartphone that embeds the GPS coordinates in the pictures, then you can send any picture of a weather station to gps@photo.gladstonefamily.net and it will be associated with the correct station automatically.

Flickr Upload

Uploading picktures to flickr.com is easy. If you do not have a free flickr account, then you need to create one. Just go to flickr and click the 'Create your account' button. You can use a google account if you have one.

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:

wxtagged -- this indicates that this picture is of a weather station or surrounding area
wx:cwop=av268 -- this indicates the site of which this is a picture
wxstation -- add this tag if the picture includes the weather station.

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)

Data Status

Over the last 7 days, no data was seen on the following dates: 2024-04-13 to 2024-04-18.

All the means and standard deviations shown below are from the last 7 days. Change analysis period to Last 3 days Last 14 days Last 4 weeks 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.

Neighboring Stations

This is a list of stations that are close to this station. 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 6 days out of 7), 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: San Joaquin Valley (HNX),Sacramento (STO) .

Site	Distance		Location
FW2000	16.4 miles	West	Groveland, CA, US (lat 37.8637°, long -120.1703°, altitude 866 metres)
CW3161	22.8 miles	West	Sonora, CA, US (lat 37.9163°, long -120.2832°, altitude 716 metres)
GW0871	27.1 miles	West	TWAIN HARTE, CA, US (lat 38.0027°, long -120.3355°, altitude 772 metres)
CW1522	30.4 miles	South	Mariposa, CA, US (lat 37.4292°, long -119.8290°, altitude 837 metres)
DW7171	36.7 miles	South	Oakhurst, CA, US (lat 37.3585°, long -119.6807°, altitude 769 metres)
DW2149	41.1 miles	Southeast	Bass Lake, CA, US (lat 37.3280°, long -119.5525°, altitude 1084 metres)
N6MDS	41.5 miles	Southeast	Bass Lake, CA, US (lat 37.3198°, long -119.5615°, altitude 1037 metres)
CW9085	44.6 miles	West	Angels Camp, CA, US (lat 38.0667°, long -120.6478°, altitude 435 metres)
KG5SWO	44.9 miles	West	Angels Camp, CA, US (lat 38.0638°, long -120.6532°, altitude 435 metres)
DW1155	47.3 miles	West	Knights Ferry, CA, US (lat 37.8255°, long -120.7337°, altitude 120 metres)

Location Formats

The location is shown in three different formats. Each of these is used in some software, and is shown on some websites.

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 Home: This describes the whole CWOP program and has a large amount of useful information.

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.

Overall website comments, problems etc to Philip Gladstone
Page layout last modified Sunday, 28 February 2016
Questions for this weather station owner/operator to Arnold
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