HADS Information for CRLC3 in Colebrook River Lake At Robertsv, CT, United States Of America (site inactive)

The following information is known about CRLC3. 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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For development purposes only
Sorry, we have no imagery here.
For development purposes only
Sorry, we have no imagery here.
For development purposes only
Sorry, we have no imagery here.
CRLC3
N1QVE
FW9241
N1ZLE
EW2996
CW3094
GW5867
EW0767
DW5918
EW8589
DW8353
CW0506
DW9759
GW5388
FW5461
CW2522
FW6415
DW4847
N1DNE
KA1STV
EW3197
EW3846
EW5401
EW6122
GW0639
N1PSJ
FW4499
DW8851
CW0811
FW9017
KC1OEK-13
KB2UZY
CW0845
GW2867
DW3637
FW2825
GW4013
EW1325
EW6187
CW8680
EW1742
FW6610
DW0929
FW7924
FW9875
N1PRS-9
GW2586
CW9809
KB1MIM
EW4867
GW4302
FW8443
EW4525
K1TTT
FW2222
W1ERB-13
CW2340
CW2621
EW8295
EW6940
EW7155
GW3147
EW4107
GW2278
KC1DMA
GW0614
FW3821
FW2187
GW4410
WY1U-1
EW8484
CW0465
GW2327
DW1035
GW1653
EW5291
DW8398
EW4354
FW7979
FW4256
CW5324
KB1JL-13
FW1093
EW7506
FW5480
CW2434
GW1524
EW0704
EW3394
DW2428
KA1BMF-13
FW5323
EW5186
GW3762
DW7061
GW6020
DW7731
GW5884
FW8921
GW3043
GW5818
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Registered Location

Latitude: 42° 0' 22" N (deg min sec), 42.0061° (decimal), 4200.37N (LORAN)
Longitude: 73° 2' 12" W (deg min sec), -73.0367° (decimal), 07302.20W (LORAN)
Elevation: 225 metres (737 feet)
Location: Colebrook River Lake At Robertsv, CT, United States Of America
County: Litchfield, CT
Data provider: USARMY-CO
Forecast Office: Albany (ALY)

The elevation does not correspond with the estimated elevation (175 metres (575 feet) -- source NED 1/3rd arc-second: Eastern United States) at that point. Either the location or the elevation (or both) are almost certain to be incorrect. 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 'CRLC3' 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 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.

The location information for this site was gathered from 2 data sources. 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 crlc3@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

Over the last 28 days, no data was seen on the following dates: 2025-02-17 to 2025-02-18, 2025-02-20.

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.

The inconsistency noted above in your location information means that the analyzed readings for your location may be incorrect. For example, if your location is incorrect, then the analysis values will be for a location other than your station. This will give different analysis results, probably leading to errors being shown below. If the elevation is incorrect, then the comparison of temperature readings will be in error.

Temperature

  24 hours  Day time  Night time
Average temperature error1.1 °F1.8 °F0.6 °F
Error standard deviation2.3 °F2.0 °F2.4 °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 98% 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.

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. Since this station has not been reporting continuously during the analysis period (it missed 3 days out of 28), the offsets below may not be accurate.

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: Albany (ALY) .

SiteDistanceLocationBarometerTemperatureDewpoint
FW92414.1 milesNorth Tolland, MA, US (lat 42.0631°, long -73.0121°, altitude 420 metres) 2.1°F
CW30949.3 milesSouth New Hartford, CT, US (lat 41.8720°, long -73.0147°, altitude 324 metres) 0.4°F
GW586710.0 milesWest NORFOLK, CT, US (lat 41.9680°, long -73.2247°, altitude 428 metres) 1.0°F
EW076710.0 milesSouth Torrington, CT, US (lat 41.8637°, long -73.0735°, altitude 270 metres) 1.7°F
EW858911.2 milesEast North Granby, CT, US (lat 42.0247°, long -72.8198°, altitude 136 metres) 3.8°F
CW050613.9 milesSoutheast Canton, CT, US (lat 41.8288°, long -72.9092°, altitude 112 metres) 2.4°F
FW641516.4 milesEast Westfield, MA, US (lat 42.0877°, long -72.7367°, altitude 49 metres) 3.8°F
EW540121.1 milesNorthwest Great Barrington, MA, US (lat 42.2000°, long -73.3550°, altitude 216 metres) 2.9°F
DW885122.8 milesEast Springfield, MA, US (lat 42.1180°, long -72.6183°, altitude 18 metres) 3.8°F
FW901723.9 milesSoutheast Plainville, CT, US (lat 41.6887°, long -72.8555°, altitude 55 metres) 3.0°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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