Site Information for 74704 in Ontario International Airport, CA, United States of America (site inactive)

The following information is known about 74704. 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.

Location Map: If this message persists, then your browser is not compatible with Google Maps.
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Registered Location

Latitude: 34° 3' 22" N (deg min sec), 34.0560° (decimal), 3403.36N (LORAN)
Longitude: 117° 36' 0" W (deg min sec), -117.6000° (decimal), 11736.00W (LORAN)
Elevation: 287 metres (942 feet) -- validated against 282 metres (924 feet) from Google
Location: Ontario International Airport, CA, United States of America
County: San Bernardino, CA
Forecast Offices: Las Vegas (VEF), San Diego (SGX), Phoenix (PSR)

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the '74704' 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 3 data sources. The possible locations for this site are up to 23.9 miles away. This makes it possible that the location chosen is incorrect. 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.

There are no photographs of the station. If you have pictures of this location, then please email them to 74704@photo.gladstonefamily.net.

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: Las Vegas (VEF),San Diego (SGX),Phoenix (PSR) .

SiteDistanceLocation
EW72393.4 milesSoutheast Eastvale, CA, US (lat 34.0268°, long -117.5532°, altitude 251 metres) (data present)
AF6TT5.1 milesNorthwest Montclair, CA, US (lat 34.0857°, long -117.6822°, altitude 347 metres) (data present)
K6FW5.8 milesSouthwest Chino, CA, US (lat 34.0095°, long -117.6848°, altitude 219 metres) (data present)
EW26076.7 milesNorthwest Upland, CA, US (lat 34.1442°, long -117.6488°, altitude 541 metres) (data present)
DW72596.8 milesNorth Rancho Cucamonga, CA, US (lat 34.1510°, long -117.6333°, altitude 596 metres) (data present)
FW57287.1 milesWest Claremont, CA, US (lat 34.0833°, long -117.7200°, altitude 319 metres) (data present)
DW62858.3 milesWest Pomona, CA, US (lat 34.0712°, long -117.7437°, altitude 283 metres) (data present)
FW66139.5 milesSoutheast Jurupa Valley, CA, US (lat 33.9853°, long -117.4575°, altitude 261 metres) (data present)
KJ6HT9.5 milesSoutheast Riverside, CA, US (lat 33.9503°, long -117.4928°, altitude 262 metres) (data present)
FW431910.6 milesNortheast Fontana, CA, US (lat 34.1677°, long -117.4723°, altitude 518 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

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
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