CWOP Information for FW6654 (F6654) in Dixmont, ME, US

The following information is known about FW6654. 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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FW6654
EW4347
N0BGS
GW1289
GW2819
EW7425
GW0502
FW2882
KD1KE
GW0780
K1JO
FW6428
GW1279
FW3968
FW5230
CW0730
AB1AU
DW6000
GW0202
EW1474
FW9580
GW3175
GW0085
EW4351
EW5854
EW1465
CW6342
DW4513
DW6033
KC1RCJ
CW6770
WA1DLZ
GW0053
EW8142
K1KSR
CW6596
FW9836
EW0294
FW3015
CW6014
K1ADM
FW9031
GW1328
WA1UHF
KC1NKL-13
EW7164
DW7670
CW8440
GW1377
GW3853
DW2258
EW5739
EW4941
WY1P
FW1283
CW1404
N1LJK-13
CW1852
DW5979
FW9827
GW0704
DW1920
EW5256
FW0871
EW0941
EW0924
FW5829
GW4192
GW4190
EW2546
EW9943
GW4186
EW3411
FW0797
N1ADJ
EW7605
GW1392
FW5989
GW4118
GW4513
GW5544
FW0323
W1LH-12
CW1259
EW6662
FW6394
EW4279
GW5290
DW8542
GW2620
CW2026
GW5686
FW6531
FW7903
FW6014
FW9451
W1BKW
FW4657
GW4309
CW2414
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Registered Location

Latitude: 44° 44' 5" N (deg min sec), 44.7348° (decimal), 4444.09N (LORAN)
Longitude: 69° 6' 42" W (deg min sec), -69.1117° (decimal), 06906.70W (LORAN)
Elevation: 109 metres (357 feet) -- validated against 112 metres (367 feet) from Geonames
Location: Dixmont, ME, US
County: Penobscot, ME
Forecast Office: Caribou (CAR)
Station type/software: Rainwise MK-III/Net

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'FW6654' 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.

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

There are no photographs of the station. If you are the site operator and have pictures of this location, then please email them to f6654@photo.gladstonefamily.net.

You can try to find photographs from the area surrounding the site marker by clicking on Find nearby photographs. (There are none)

Data Status

Data has been seen on each of the last 26 analyzed days.

The last 24 hours of weather data can be viewed at Findu. This page also provides access to the raw APRS packets and various other APRS related tools.

Recent observations from this weather station can be downloaded as a CSV file suitable for importing into various spreadsheet programs: last 7 days, last 14 days, last 28 days, last 56 days. This data can also be linked directly from Excel using a Web Query. The main link goes to the page with the data on it, and the IQY link is the Web Query that will access it: last 7 days (IQY: last 7 days), last 14 days (IQY: last 14 days), last 28 days (IQY: last 28 days), last 56 days (IQY: last 56 days).

All the means and standard deviations shown below are from the last 28 days. Change analysis period to Last 3 days  Last 7 days  Last 14 days  Last 8 weeks  Last 13 weeks  Last 26 weeks  Last 39 weeks  Last 52 weeks  

By default, the longer analysis periods display graphs that show the long term performance of this station. The graphs show the mean error over time, and include error bars which are one standard deviation long. This provides an easy way to see if there are any underlying trends in the data. Note that a 'step' in your data does not (necessarily) mean that something happened to your station. It could mean that another station came online in the local area, and they are changing the analysis.

The analysis is performed by MADIS. This web page just provides visualization of the data that MADIS produces. There are a number of very knowledgeable people who participate on the WXQC Mailing List who do understand exactly how MADIS works and can resolve issues when the analysis seems to be broken. However, in most cases, the station readings are at fault, or the software that is transmitting the data to CWOP. Please check those paths first.

You can also see how this station compares with other stations.

Barometer

Average barometer error: -0.4 milliBars
Error standard deviation: 0.5 milliBars

 
MADIS
rating
MADIS rating 99% QC OK
 

Latest daily graph:

Latest daily graph

These values are within range, so your sensor is probably calibrated correctly.

Temperature

  24 hours  Day time  Night time
Average temperature error0.8 °F0.2 °F1.1 °F
Error standard deviation2.9 °F2.3 °F3.2 °F

NOTE: If the error above is POSITIVE, then it means that the analysis temperature is HIGHER than the reported temperature. This means that your sensor is reading COLDER than expected.

 
 
MADIS
rating
MADIS rating 92% QC OK
 

Latest daily graph:

Latest daily graph

These values are within the acceptable range. This probably means that your sensor is sited correctly and is calibrated correctly.

Dewpoint -- or switch to Relative Humidity

  24 hours  Day time  Night time
Average dewpoint error1.0 °F1.0 °F1.0 °F
Error standard deviation2.8 °F2.6 °F3.0 °F

NOTE: If the error above is POSITIVE, then it means that the analysis temperature is HIGHER than the reported temperature. This means that your sensor is reading COLDER than expected.

 
 
MADIS
rating
MADIS rating 94% QC OK
 

Latest daily graph:

Latest daily graph

These values are within the acceptable range. This probably means that your sensor is sited correctly and is calibrated correctly.

Wind Vector

The wind vector is the average wind over the relevant period. Note that if the wind blows North for half the time at 2 knots, and then blows South for the other half of the time at 2 knots, then the result is zero -- i.e. North wind and South wind will cancel out. Over time, the direction of the wind and of the analysis should match pretty well. If the lengths of the vector are different, then it could mean either that your anemometer reads high or low, or that you are in a more shielded or more open space.
MADIS
rating
MADIS rating 98% QC OK
TodayLast 7 days
Wind vector chartWind vector chart for last 7 days

Neighboring Stations

This is a list of stations that are close to this station. Note that this is not the list of stations that are used in the data analysis. That list of stations is known only to MADIS. You can see all the stations at MADIS Data Display. Your station should be in the middle of the display. If you think that the analysis is incorrect, then maybe one of the close stations has failed.

You can look at those for comparison purposes. The average difference between your station and each station below is listed as well. This may allow you to detect local stations which are erroneous. You can also use these numbers to adjust your instruments -- especially if a number of ASOS stations have similar differences to your station. Also, try increasing the analysis period to more than the default 28 days. The difference is only given if both stations report reasonably often during each day. Some stations only report every 6 hours, and this makes the average of less interest. In this case, the average is not displayed. The values reported are the differences between this station and the neighboring station. I.e. if the difference is positive, then this station is reading higher than the neighboring 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) .

SiteDistanceLocationBarometerTemperatureDewpoint
EW43478.4 milesNorthwest Plymouth, ME, US (lat 44.7955°, long -69.2588°, altitude 93 metres) 0.0mb-0.4°F-0.5°F
N0BGS10.9 milesNortheast Hermon, ME, US (lat 44.8080°, long -68.9142°, altitude 40 metres) 0.4mb0.5°F-0.9°F
GW128916.0 milesNortheast KENDUSKEAG, ME, US (lat 44.9228°, long -68.9225°, altitude 43 metres) 0.8mb1.0°F-0.7°F
GW281917.4 milesNorthwest Palmyra, ME, US (lat 44.8450°, long -69.4308°, altitude 91 metres) 0.4mb0.2°F0.3°F
EW742517.7 milesEast Bangor, ME, US (lat 44.8217°, long -68.7728°, altitude 58 metres) 0.7mb-1.8°F-2.3°F
GW050218.3 milesSouth Waldo, ME, US (lat 44.4703°, long -69.1202°, altitude 89 metres) -0.4mb-2.3°F-3.4°F
KD1KE20.7 milesSouthwest Freedom, ME, US (lat 44.4887°, long -69.3500°, altitude 238 metres) 2.1mb-4.4°F-2.9°F
GW127923.8 milesSouth BELMONT, ME, US (lat 44.3910°, long -69.1425°, altitude 120 metres) 1.3mb-2.3°F-2.9°F
FW958031.4 milesSoutheast Brooksville - 3.5 ESE, ME, US (lat 44.3617°, long -68.7488°, altitude 61 metres) 0.6mb-3.8°F-4.3°F
EW585435.1 milesWest Belgrade, ME, US (lat 44.5455°, long -69.7742°, altitude 104 metres) -0.6mb-0.1°F-0.8°F

Quality Control Notes

This page reports on the quality control checks performed by MADIS. The green check mark and red cross are chosen based on the average performance during the analysis period (which is selectable above). The red cross can appear even if MADIS reports that all observations pass the MADIS QC checks.

The 'MADIS rating' reports on the percentage of observations that pass the MADIS checks. You should aim for two thumbs up!

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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