CWOP Information for EW8284 (E8284) in Mill Valley, CA, US

The following information is known about EW8284. 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° 53' 31" N (deg min sec), 37.8920° (decimal), 3753.52N (LORAN)
Longitude: 122° 34' 10" W (deg min sec), -122.5693° (decimal), 12234.16W (LORAN)
Elevation: 170 metres (558 feet)
Location: Mill Valley, CA, US
County: Marin, CA
Forecast Office: San Francisco Bay Area (MTR)
Weather station Manager/Operator: Michael
Station type/software: Davis Vantage Pro 2/Vue with Weatherlink-IP

The elevation does not correspond with the estimated elevation (52 metres (171 feet) -- source Google) at that point. It seems probable that the elevation was entered as feet rather than as metres. Please use the 'send the updated information' link below to update the location or elevation.

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'EW8284' 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.

The best way to get elevation is to consult a topographic map. Make sure that you know whether the contours are marked in feet or metres. Note that handheld GPS receivers do not provide readings of elevation accurate to better than 10-20 metres (technical discussion). If you do not have access to a topographic map, then a GPS receiver is acceptable, but make sure that it is operating in 3D mode and let it average the position for at least five minutes.

For more information on reading maps, please see the Topo Map Reading Guide -- in particular it discusses how to read contours.

NOTE: The Registered Location is the location that the station owner provided when they signed up with CWOP. Show location history.

There are no photographs of the station. If you are the site operator and have pictures of this location, then please email them to e8284@photo.gladstonefamily.net.

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

APRS Status

No data has been seen recently. Please check at findu.com to see if your data is being seen there.

Weather data was seen at findu.com around 96 days ago on 2017-03-22.

A recently received report from this station was

EW8284>APRS,TCPXX*,qAX,CWOP-5:@221056z3753.52N/12234.16W_.../...g...t...r000p071P000h..b10142L....DsIP

This report was seems to be a valid APRS record, but not a valid weather record.

If this is not a weather report, then your station may not be transmitting weather reports, and this may be the problem. Check the recent reports at findu.com to see if any look like weather reports.

A reasonably recent weather report (97 days ago) received from this station was
EW8284>APRS,TCPXX*,qAX,CWOP-5:@221056z3753.52N/12234.16W_.../...g...t...r000p071P000h..b10142L....DsIP

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: San Francisco Bay Area (MTR) .

SiteDistanceLocation
DW70941.9 milesNortheast Mill Valley, CA, US (lat 37.9133°, long -122.5483°, altitude 58 metres) (data present)
EW99392.2 milesNorthwest Mill Valley, CA, US (lat 37.9168°, long -122.5938°, altitude 556 metres) (data present)
MDEC12.7 milesNorth Middle Peak Raws Near Kentfield 2sw, CA, United States of America (lat 37.9278°, long -122.5872°, altitude 366 metres) (data present)
WB6TTB6.1 milesEast Tiburon, CA, US (lat 37.8880°, long -122.4577°, altitude 163 metres) (data present)
AD6QC6.4 milesNorth Fairfax, CA, US (lat 37.9830°, long -122.5948°, altitude 51 metres) (data present)
EW84186.8 milesNorth San Rafael, CA, US (lat 37.9892°, long -122.5483°, altitude 145 metres) (data present)
WDAC18.0 milesNorthwest Woodacre 1s Raws, CA, United States of America (lat 37.9906°, long -122.6447°, altitude 273 metres) (data present)
DW54228.9 milesSouth San Francisco, CA, US (lat 37.7717°, long -122.5105°, altitude 10 metres) (data present)
DW80089.3 milesSoutheast San Francisco, CA, US (lat 37.7822°, long -122.4713°, altitude 61 metres) (data present)
A11429.3 milesNortheast Pt. San Pablo, CA, United States of America (lat 37.9619°, long -122.4233°, altitude 69 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

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 Michael
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