MesoWest Information for PG392 in Armstrong Road, CA, United States Of America

The following information is known about PG392. 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: 38° 14' 7" N (deg min sec), 38.2354° (decimal), 3814.12N (LORAN)
Longitude: 120° 26' 57" W (deg min sec), -120.4491° (decimal), 12026.95W (LORAN)
Elevation: 818 metres (2684 feet) -- validated against 819 metres (2687 feet) from Geonames
Location: Armstrong Road, CA, United States Of America
County: Calaveras, CA
Data provider: PGE
Forecast Offices: Sacramento (STO), Reno (REV)

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'PG392' 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 1 data source. 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.

There are no photographs of the station. If you have pictures of this location, then please email them to

You can try to find photographs from the area surrounding the site marker by clicking on Find nearby photographs.

Neighboring Stations

This is a list of stations that are close to this 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: Sacramento (STO),Reno (REV) .

EW98382.8 milesNorth Mountain Ranch, CA, US (lat 38.2735°, long -120.4663°, altitude 870 metres) (data present)
PG0934.2 milesSoutheast Avery Sheep Ranch Road, CA, United States Of America (lat 38.2054°, long -120.3816°, altitude 1090 metres) (data present)
PG1484.2 milesNorthwest Banner Road South, CA, United States Of America (lat 38.2909°, long -120.4824°, altitude 804 metres) (data present)
PG5175.9 milesWest Mountain Ranch Road, CA, United States Of America (lat 38.2164°, long -120.5545°, altitude 695 metres) (data present)
WA5KWK6.0 milesNorthwest Rail Road Flat, CA, US (lat 38.3060°, long -120.5145°, altitude 858 metres) (data present)
FW92266.5 milesEast Arnold, CA, US (lat 38.2579°, long -120.3329°, altitude 1269 metres) (data present)
PG1568.0 milesSouth Ponderosa Way, CA, United States Of America (lat 38.1235°, long -120.4142°, altitude 838 metres) (data present)
PG26610.8 milesSouthwest Murphy Grade Road, CA, United States Of America (lat 38.0933°, long -120.5334°, altitude 500 metres) (data present)
PG09511.1 milesNorthwest Upper Dorray Road, CA, United States Of America (lat 38.3559°, long -120.5851°, altitude 847 metres) (data present)
PG39311.4 milesWest Mills Ave, CA, United States Of America (lat 38.1960°, long -120.6524°, altitude 396 metres) (data present)

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


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
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