CWOP Information for FW2430 (F2430) in Harpersfield, OH, US

The following information is known about FW2430. 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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FW2430
EW0380
DW3607
EW0427
CW7309
DW8246
DW4139
FW0030
DW1174
EW5319
EW7294
N8WJW
K8GLX
GW2028
EW0520
FW8088
CW2334
GW0229
DW9372
GW0200
EW8077
GW5800
FW8501
EW5004
GW3602
GW1080
GW4057
EW2974
EW5246
CW8332
EW2441
DW4078
FW5633
EW5647
FW6228
DW7394
CW4558
CW4629
FW5810
FW5715
EW8830
GW0915
DW8932
EW8697
GW2445
GW2728
EW2960
CW6401
FW6647
FW5469
KC3DGM
EW1802
EW1710
DW5616
DW8136
GW4442
EW0765
KA8OAD-1
GW5190
GW5896
FW3046
KD8UYA
DW9608
EW2482
GW2451
FW8255
EW0182
KC8MCA
GW5974
FW4686
GW3797
FW3218
DW8454
GW3676
EW9290
GW3459
EW5374
FW2245
FW4294
FW7122
GW4634
KE8ZZR
GW4774
DW8155
KN6WGU
GW0206
N8AMF
AA3CS-1
GW4912
FW7530
DW7187
CW5539
FW7362
GW5225
W8WFD
FW1508
KB3KBR-WX
DW5160
GW5507
GW5522
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Registered Location

Latitude: 41° 43' 34" N (deg min sec), 41.7260° (decimal), 4143.56N (LORAN)
Longitude: 80° 59' 28" W (deg min sec), -80.9910° (decimal), 08059.46W (LORAN)
Elevation: 282 metres (924 feet) -- validated against 282 metres (924 feet) from Google
Location: Harpersfield, OH, US
County: Ashtabula, OH
Forecast Office: Cleveland (CLE)
Weather station Manager/Operator: Christopher
Station type/software: Davis Vantage Pro 2/Vue with Weatherlink-IP

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'FW2430' 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 f2430@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 27 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.

A recently received weather report from this station was

Analyze: FW2430>APRS,TCPXX*,qAX,CWOP-6:@072245z4143.56N/08059.46W_304/002g010t034r000p001P001h86b10092L....DsIP

Barometer

Average barometer error: -0.8 milliBars
Error standard deviation: 0.7 milliBars

 
MADIS
rating
MADIS rating 98% 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 error0.1 °F-0.4 °F0.2 °F
Error standard deviation1.3 °F1.0 °F1.4 °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 100% 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 error-0.1 °F-0.6 °F0.1 °F
Error standard deviation1.3 °F1.2 °F1.3 °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 100% 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 88% 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: Cleveland (CLE) .

SiteDistanceLocationBarometerTemperatureDewpoint
EW03809.8 milesNortheast Ashtabula, OH, US (lat 41.7837°, long -80.8183°, altitude 260 metres) 0.4mb0.5°F1.4°F
EW042710.7 milesSouthwest Montville, OH, US (lat 41.5830°, long -81.0717°, altitude 382 metres) 1.1mb-0.5°F0.9°F
DW824615.9 milesWest Mentor, OH, US (lat 41.6915°, long -81.2958°, altitude 205 metres) 0.9mb0.1°F-0.9°F
K8GLX25.2 milesWest Wickliffe, OH, US (lat 41.6207°, long -81.4582°, altitude 189 metres) 0.5mb-0.8°F-0.4°F
EW052029.1 milesSouthwest Auburn, OH, US (lat 41.3605°, long -81.2700°, altitude 353 metres) 2.2mb-0.5°F1.0°F
GW580032.7 milesSouth WINDHAM, OH, US (lat 41.2548°, long -81.0445°, altitude 290 metres) 0.2mb-0.4°F0.7°F
FW850133.5 milesSouthwest Reminderville, OH, US (lat 41.3468°, long -81.3933°, altitude 310 metres) 1.3mb-0.6°F-1.5°F
GW360235.3 milesSouthwest TWINSBURG, OH, US (lat 41.3428°, long -81.4417°, altitude 334 metres) 1.1mb-1.1°F1.3°F
GW108035.6 milesSouthwest Aurora, OH, US (lat 41.2970°, long -81.3693°, altitude 1053 metres) 1.2mb-12.9°F0.6°F
GW405735.8 milesSouthwest BEDFORD HEIGHTS, OH, US (lat 41.3764°, long -81.5019°, altitude 300 metres) 0.8mb-1.1°F-0.6°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
Questions for this weather station owner/operator to Christopher
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