Site Information for K3B1 (3B1) in Greenville, Greenville Municipal Airport, ME, United States

The following information is known about K3B1. 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: 45° 27' 47" N (deg min sec), 45.4630° (decimal), 4527.78N (LORAN)
Longitude: 69° 33' 6" W (deg min sec), -69.5516° (decimal), 06933.10W (LORAN)
Elevation: 427 metres (1401 feet) -- validated against 425 metres (1393 feet) from NED Contiguous U. S. 1/3E arc second elevation data
WMO Id: 72619
Location: Greenville, Greenville Municipal Airport, ME, United States
County: Piscataquis, ME
Forecast Office: Caribou (CAR)

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'K3B1' 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 14 data sources. The possible locations for this site are up to 2.1 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

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: Caribou (CAR) .

3B190.0 milesSouth Greenville, ME, United States Of America (lat 45.4628°, long -69.5516°, altitude 427 metres) (data present)
KGNR0.1 milesNorthwest Greenville, ME, United States (lat 45.4646°, long -69.5538°, altitude 427 metres) (data present)
CW14046.6 milesNorth Beaver Cove, ME, US (lat 45.5575°, long -69.5642°, altitude 315 metres) (data present)
KKJM115.3 milesNorth Nepp Site At Kokadjo, ME, United States of America (lat 45.6711°, long -69.4469°, altitude 379 metres) (data present)
FRKM121.7 milesSouthwest Kennebec River At The Forks, ME, United States of America (lat 45.3397°, long -69.9619°, altitude 173 metres) (data present)
DOVM123.0 milesSoutheast Piscataquis River Near Dover-fox, ME, United States Of America (lat 45.1750°, long -69.3147°, altitude 109 metres) (data present)
RIPM133.4 milesNortheast Nepp Site At Ripogenois Dam, ME, United States of America (lat 45.8806°, long -69.2050°, altitude 313 metres) (data present)
SPEM135.1 milesWest Spencer Stream At Mouth Near Gra, ME, United States Of America (lat 45.3136°, long -70.2417°, altitude 304 metres) (data present)
59B935.8 milesWest Jackman, ME, United States Of America (lat 45.6328°, long -70.2488°, altitude 359 metres) (data present)
PSFM135.9 milesNorthwest Nepp Site At Pittston Farm Near Rockwood 20nw, ME, United States of America (lat 45.8944°, long -69.9647°, altitude 335 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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