METAR Information for KMVN in Mount Vernon, Mount Vernon Airport, IL, United States METAR Information for KMVN (MVN) in Mount Vernon, Mount Vernon Airport, IL, United States The following information is known about KMVN. 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. Location Map: If this message persists, then your browser is not compatible with Google Maps. Larger Smaller Google Earth. Show 0 no-data sites. Show/hide streetview Registered Location Latitude: 38° 19' 42" N (deg min sec), 38.3284° (decimal), 3819.71N (LORAN) Longitude: 88° 51' 11" W (deg min sec), -88.8529° (decimal), 08851.18W (LORAN) Elevation: 146 metres (479 feet) -- validated against 143 metres (469 feet) from Google Location: Mount Vernon, Mount Vernon Airport, IL, United States County: Jefferson, IL Forecast Office: Paducah (PAH) Airport diagram: PDF from FAA Automated weather phone (AWOS-3): 618-242-7933 Observing program(s): AWOS The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'KMVN' 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: -- please choose Yes Almost -- can see instruments No -- no instruments to be seen No -- cannot zoom in to see Not sure what instruments look like Email address: Comments, including how you know the location of this weather station. Press Cancel if you do not know where the weather station is located. The latitude and longitude of the marker will be automatically transmitted. This message may be published on the site page. Note that your email address will not appear anywhere. Cancel The location information for this site was gathered from 15 data sources. This position has been modified based on user feedback. Show location history. Date Latitude Longitude Elevation Name 2007-11-28 38.3234 -88.8585 146 Mount Vernon, US 2007-11-29 38.3234 -88.8585 146 Mt Vernon/outlnd, IL 2007-12-03 38.3234 -88.8588 146 Mount Vernon 2007-12-09 38.3234 -88.8585 146 Mt Vernon/outlnd, IL 2007-12-09 38.3234 -88.8588 146 Mt Vernon/outlnd, IL 2009-01-29 38.3234 -88.8588 146 Mt Vernon/outlnd, IL, United States 2009-04-17 38.3234 -88.8588 146 Mt Vernon/outlnd, IL, United States 2009-10-14 38.3234 -88.8588 146 Mount Vernon, US 2009-12-30 38.3234 -88.8588 146 Mount Vernon Airport, United States of America 2009-12-31 38.3234 -88.8588 146 Mount Vernon (awos), IL, United States of America 2010-08-29 38.3234 -88.8588 146 Mount Vernon, IL, United States, United States of America 2010-09-01 38.3234 -88.8585 146 Mount Vernon Outland Airport, IL, United States of America 2010-10-08 38.3233 -88.8583 146 Mount Vernon (awos), IL, United States of America 2010-10-22 38.3233 -88.8583 146 Mount Vernon Outland Airport, IL, United States of America 2011-12-01 38.3234 -88.8585 146 Mount Vernon, Mount Vernon Airport, IL, United States 2011-12-02 38.3233 -88.8583 146 Mount Vernon, Mount Vernon Airport, IL, United States 2017-01-06 38.3284 -88.8529 146 Mount Vernon, Mount Vernon Airport, IL, United States The position of the clicked point on the map is: The position of the 'KMVN' marker on the map is: Latitude: dummy (deg min sec), dummy (decimal), dummy (LORAN) Longitude: dummy (deg min sec), dummy (decimal), dummy (LORAN) Estimated elevation is dummy metres (dummy feet) from dummy. Location is dummy (reverse geocoded). Move marker to new address. New address: The address above cannot be found, please try again. Cancel There are no photographs of the station. If you have pictures of this location, then please email them to kmvn@photo.gladstonefamily.net. Picture Submission There are two ways to submit pictures. If you are a flickr user, then see the flickr section below. Otherwise you can simply email the pictures as follows: Email the pictures to kmvn@photo.gladstonefamily.net. If you use a smartphone that embeds the GPS coordinates in the pictures, then you can send any picture of a weather station to gps@photo.gladstonefamily.net and it will be associated with the correct station automatically. Flickr Upload Uploading picktures to flickr.com is easy. If you do not have a free flickr account, then you need to create one. Just go to flickr and click the 'Create your account' button. You can use a google account if you have one. Once logged in, click on 'Upload Photos & Video'. Next click on 'Choose Photos and Videos', and walk through the process to upload your pictures. They will automatically be resized appropriately. After the upload is complete, it will ask you to add titles, tags and descriptions. The key step is to add tags as follows: wxtagged -- this indicates that this picture is of a weather station or surrounding area wx:metar=kmvn -- this indicates the site of which this is a picture wxstation -- add this tag if the picture includes the weather station. If you had to create your account, then you must upload at least five pictures. It will also take longer for your pictures to appear (a week or so). Otherwise, the pictures should appear after 24-48 hours. You can try to find photographs from the area surrounding the site marker by clicking on Find nearby photographs. (There are some) (There are none) (There may be some) (Automatically loaded if any) Status: Searching... Status: None found. Clicking on the map above will redo the search centered on the clicked point. Status: 3 found. If any images are of the weather station, then please click on those images, and add the 'wxtagged' and 'wx:metar=kmvn' tags to those images. For the station itself, please add the 'wx:station' tag as well. Some users do not permit other users to add tags to their images. In these cases, just add a comment to the picture asking the photographer to add the tags themselves. Clicking on the map above will redo the search centered on the clicked point. You can try to find photographs from the area surrounding the selected point by clicking on Find nearby photographs. Data Status Data has been seen on each of the last 27 analyzed days. 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 Barometer Average barometer error: -0.4 milliBars Error standard deviation: 0.2 milliBars MADIS rating Latest daily graph: These values are within range, so your sensor is probably calibrated correctly. Temperature 24 hours Day time Night time Average temperature error 1.9 °F 0.1 °F 2.0 °F Error standard deviation 1.8 °F 1.2 °F 1.8 °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 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 °F 0.2 °F Error standard deviation 1.5 °F 1.1 °F 1.5 °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 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 Sensor fails following checks: L3 Spatial Consistency Today 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: Paducah (PAH) . Site Distance Location Barometer Temperature Dewpoint EW6608 9.5 miles Northwest Dix, IL, US (lat 38.4478°, long -88.9403°, altitude 176 metres) 0.6mb -2.2°F 0.7°F KA9CBS 15.7 miles Southwest Scheller, IL, US (lat 38.1862°, long -89.0783°, altitude 155 metres) 0.9mb -2.7°F -0.5°F KENL 17.9 miles Northwest Centralia, Centralia Municipal Airport, IL, United States (lat 38.5095°, long -89.0900°, altitude 163 metres) 0.1mb -1.5°F -0.7°F EW6320 19.5 miles Northwest Centralia, IL, US (lat 38.5150°, long -89.1217°, altitude 160 metres) 0.6mb -3.5°F -0.2°F DW4351 21.1 miles West DuBois, IL, US (lat 38.2243°, long -89.2173°, altitude 226 metres) 0.9mb -4.1°F -0.7°F KSLO 22.6 miles North Salem, Salem-Leckrone Airport, IL, United States (lat 38.6446°, long -88.9612°, altitude 175 metres) -0.1mb -3.5°F -1.4°F KFWC 24.1 miles East Fairfield, Fairfield Municipal Airport, IL, United States (lat 38.3796°, long -88.4135°, altitude 133 metres) 0.2mb -1.2°F 0.4°F EW9367 26.9 miles East Fairfield, IL, US (lat 38.3782°, long -88.3607°, altitude 134 metres) 0.2mb -3.1°F -0.3°F KFOA 31.9 miles Northeast Flora, Flora Municipal Airport, IL, United States (lat 38.6673°, long -88.4527°, altitude 144 metres) -0.1mb -1.2°F 0.5°F KHSB 39.4 miles Southeast Harrisburg, Harrisburg-Raleigh Airport, IL, United States (lat 37.8128°, long -88.5449°, altitude 121 metres) -0.0mb -1.6°F -2.1°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 This page is one of 102474 similar pages. This one was generated in 0.17 seconds. 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