CWOP Information for CW9503 (C9503) in Stambolijski, BG

The following information is known about CW9503. If you think that any information is incorrect, then please follow the instructions for correcting that data item.

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Registered Location

Latitude: 42° 7' 38" N (deg min sec), 42.1272° (decimal), 4207.63N (LORAN)
Longitude: 24° 31' 26" E (deg min sec), 24.5238° (decimal), 02431.43E (LORAN)
Elevation: 189 metres (620 feet) -- validated against 189 metres (620 feet) from SRTM.C_1TO19_3
Location: Stambolijski, BG
Weather station Manager/Operator: Radmil
Station type/software: Weather Display / LaCrosse 2310/2315

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'CW9503' 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. Show location history.

The station (or view from the station) is shown here. You can choose the view direction to see the surroundings. Other information (and somewhat larger images) can be found by clicking on the picture.

You can try to find photographs from the area surrounding the site marker by clicking on Find nearby photographs.

Data Status

Over the last 28 days, no data was seen on the following dates: 2018-01-24 to 2018-01-28.

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  

A recently received weather report from this station was


Latest daily graph:

Latest daily graph


Latest daily graph:

Latest daily graph

Dewpoint -- or switch to Relative Humidity

Latest daily graph:

Latest daily graph

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.
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. 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 5 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 .

LBPG14.9 milesNortheast Graf Ignatievo Air Base, 16, Bulgaria (lat 42.2904°, long 24.7140°, altitude 58 metres) -1.0mb10.1°F3.7°F
LBPD17.8 milesEast Plovdiv, Bulgaria (lat 42.0638°, long 24.8604°, altitude 182 metres) -3.4mb8.9°F5.0°F
DW152141.9 milesNorthwest Ihtiman, BG (lat 42.4328°, long 23.8170°, altitude 630 metres) 0.1mb6.8°F7.3°F
1561548.4 milesWest Mussala (top/sommet), Bulgaria (lat 42.1833°, long 23.5833°, altitude 2927 metres)
1573055.2 milesSoutheast Kurdjali Kardzali, 26, Bulgaria (lat 41.6500°, long 25.3833°, altitude 331 metres)
1560065.5 milesNorthwest Mourgash Mountain, -, Bulgaria (lat 42.8329°, long 23.6688°, altitude 1692 metres)
LBSF68.7 milesNorthwest Sofia Observ. , Bulgaria (lat 42.6537°, long 23.3829°, altitude 595 metres) -2.8mb6.5°F7.5°F
1552571.3 milesNorth Lovetch, 11, Bulgaria (lat 43.1500°, long 24.7000°, altitude 221 metres)
1571276.1 milesSouthwest Sandanski, -, Bulgaria (lat 41.5500°, long 23.2667°, altitude 207 metres)
LGKV84.0 milesSouth Chrysoupoli Airport , Greece (lat 40.9151°, long 24.6222°, altitude 5 metres) -2.9mb6.8°F0.1°F

The sites marked above thus did not report continuously during the analysis period, so the offsets may (probably will) not be accurate.

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
Questions for this weather station owner/operator to Radmil
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