AIRNow Information for AN021 in Blue Point Sheriff Sub-station, AZ, United States of America

The following information is known about AN021. 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: 33° 32' 44" N (deg min sec), 33.5455° (decimal), 3332.73N (LORAN)
Longitude: 111° 36' 33" W (deg min sec), -111.6093° (decimal), 11136.56W (LORAN)
Elevation: 436 metres (1431 feet) -- validated against 433 metres (1422 feet) from NED 1/3rd arc-second: Western United States
Location: Blue Point Sheriff Sub-station, AZ, United States of America
County: Maricopa, AZ
Data provider: MARICOPA
Forecast Office: Phoenix (PSR)

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'AN021' 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. Show location history.

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: Phoenix (PSR) .

SRP384.1 milesEast Stewart Mountain Dam, AZ, United States Of America (lat 33.5600°, long -111.5400°, altitude 443 metres) (data present)
MAUP4.4 milesSouth Usery Park WS, AZ, United States Of America (lat 33.4817°, long -111.6159°, altitude 629 metres) (data present)
MAGU4.6 milesNortheast Saguaro Lake, AZ, United States Of America (lat 33.5750°, long -111.5375°, altitude 472 metres) (data present)
DW47987.3 milesSouth East Mesa, AZ, US (lat 33.4423°, long -111.6322°, altitude 520 metres) (data present)
FW32458.0 milesNorthwest Fountain Hills, AZ, US (lat 33.6238°, long -111.7113°, altitude 491 metres) (data present)
EW59238.0 milesSouth Apache Junction, AZ, US (lat 33.4328°, long -111.5783°, altitude 514 metres) (data present)
MAFH8.1 milesNorthwest Fountain Hills Fire Dept., AZ, United States Of America (lat 33.6111°, long -111.7251°, altitude 507 metres) (data present)
DW60638.2 milesNorthwest Sappington, MO, US (lat 33.6070°, long -111.7317°, altitude 529 metres) (data present)
FW71318.8 milesSouthwest Mesa, AZ, US (lat 33.4393°, long -111.6945°, altitude 442 metres) (data present)
EW16899.0 milesNorthwest Fountain Hills, AZ, US (lat 33.6075°, long -111.7463°, altitude 592 metres) (data present)

The sites marked above thus did not report continuously during the analysis period, so the offsets may (probably will) not be accurate.

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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