MesoWest Information for J57AX in J57A Williamstown, NY, United States Of America (site inactive)

The following information is known about J57AX. 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.

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.
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.
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.
J57AX
GW3633
FW0743
EW5907
FW3743
EW9310
CW8614
FW6537
K2MST
GW3758
W2PJ
DW6725
GW3170
AB2TC-1
EW6659
EW5543
FW0805
CW2352
FW9412
EW1042
EW5043
N2ADK
GW1917
EW6220
GW4208
DW8599
EW5134
EW6140
KC2HGK-4
GW3804
CW6427
CW5084
GW0518
FW7743
EW1272
KE7WWT-1
GW4669
FW7889
GW5087
GW0547
FW7783
FW9870
FW0087
GW5159
CW9723
DW4596
GW1009
EW3774
FW8347
EW3719
AD2TM
FW2101
K1YMI
EW6438
FW1825
DW2745
VA3BOO
CW9192
DW5513
GW5055
EW3272
KC4QLP
CW9871
EW1379
VA3JLF-1
GW3119
GW4275
FW6085
EW2485
EW3775
GW2385
CW5530
GW5899
FW7386
WA2NAN-4
GW2276
EW8371
GW3182
N2QDK-2
DW0110
NC2C
KC2WGU
GW0268
N2PUI
FW7705
FW1369
GW3397
FW5947
FW3092
CW1631
CW9540
EW3349
FW6364
FW3795
AA2YS
EW5586
FW4479
EW8599
GW4488
EW8409
GW2652
This page can't load Google Maps correctly.
Do you own this website?
  Larger  Smaller  Google Earth.

Registered Location

Latitude: 43° 24' 36" N (deg min sec), 43.4099° (decimal), 4324.59N (LORAN)
Longitude: 75° 59' 48" W (deg min sec), -75.9968° (decimal), 07559.81W (LORAN)
Elevation: 191 metres (626 feet) -- validated against 191 metres (627 feet) from NED 1/3rd arc-second: Eastern United States
Location: J57A Williamstown, NY, United States Of America
County: Oswego, NY
Data provider: USARRAY
Forecast Office: Buffalo (BUF)

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'J57AX' 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 j57ax@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: 2025-02-14 to 2025-02-26, 2025-03-03 to 2025-03-11.

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: -2.4 milliBars
Error standard deviation: 0.4 milliBars
Worst daily average barometer error: -2.5 milliBars
Mean error value of -2.4 exceeds limit of 2.0
 
MADIS
rating
MADIS rating 10% QC OK
Sensor fails following checks:
L3 Spatial Consistency
 

Latest daily graph:

Latest daily graph

There is a significant mean error in your barometer readings. You may need to calibrate your barometer.

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 22 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: Buffalo (BUF) .

SiteDistanceLocationBarometerTemperatureDewpoint
FW07438.9 milesWest Hastings, NY, US (lat 43.3687°, long -76.1652°, altitude 150 metres) -4.2mb
EW590717.2 milesSouth Cicero, NY, US (lat 43.1692°, long -76.0806°, altitude 122 metres) -4.4mb
FW374318.8 milesSouthwest Clay, NY, US (lat 43.1642°, long -76.1573°, altitude 118 metres) -5.1mb
EW931021.0 milesSouthwest Phoenix, NY, US (lat 43.2273°, long -76.3302°, altitude 118 metres) -4.4mb
CW861422.7 milesSouth Minoa, NY, US (lat 43.0822°, long -76.0193°, altitude 125 metres) -4.7mb
FW653726.0 milesSouth Dewitt, NY, US (lat 43.0370°, long -76.0630°, altitude 144 metres) -4.6mb
GW317029.2 milesSouthwest Cato, NY, US (lat 43.1787°, long -76.4820°, altitude 131 metres) -4.1mb
AB2TC-129.9 milesSouthwest Camillus, NY, US (lat 43.0303°, long -76.2820°, altitude 223 metres) -3.6mb
FW080530.7 milesSouth Jamesville, KY, US (lat 42.9720°, long -76.1010°, altitude 270 metres) -3.7mb
FW941233.9 milesSouthwest Marcellus, NY, US (lat 42.9952°, long -76.3550°, altitude 306 metres) -3.2mb

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
This page is one of 106224 similar pages. This one was generated in 0.24 seconds.
BESbswy
BESbswy