MesoWest Information for MD065 in Bay Bridge N-13 W/B, MD, United States Of America (site inactive)

The following information is known about MD065. 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
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For development purposes only
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MD065
DW2030
FW7211
FW8525
EW5391
FW0596
EW5728
WH7F
GW4300
K3TXT-1
DW7859
EW0642
FW4773
FW4495
CW0454
GW3211
EW1011
FW8079
GW3133
GW1306
CW9454
FW8736
CW9692
GW4223
CW2157
KC3BAN-13
EW6378
GW3347
FW8749
GW1299
FW4365
GW2027
FW2488
N3YVY
GW2141
DW2537
FW6819
GW0884
FW3162
DW7875
FW4228
N3UJJ-1
GW5836
FW4457
EW3221
N3WKE
EW5058
FW6277
GW0280
GW1083
CW1550
FW2837
CW3783
GW6061
GW3591
CW5307
EW4458
DW0501
FW7982
GW4014
DW1590
N3DOU-1
EW9415
EW3247
DW6747
CW7109
EW1762
CW0608
GW2295
GW0807
GW2721
kc3bcs
GW2838
FW9340
EW4629
FW3609
KB3PHD
DW1546
EW8292
FW9615
CW1706
FW2862
FW5836
CW1032
FW6860
FW7035
K2EJ-13
FW8531
EW2809
FW1341
FW7745
CW1676
FW9050
DW8795
EW7287
FW6064
EW5055
EW8787
DW9421
FW9110
GW1129
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Registered Location

Latitude: 38° 59' 31" N (deg min sec), 38.9920° (decimal), 3859.52N (LORAN)
Longitude: 76° 20' 37" W (deg min sec), -76.3437° (decimal), 07620.62W (LORAN)
Elevation: -3 metres (-13 feet) -- validated against 0 metres (0 feet) from Geonames
Location: Bay Bridge N-13 W/B, MD, United States Of America
Data provider: MDDOT

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'MD065' 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.

There are no photographs of the station. If you have pictures of this location, then please email them to md065@photo.gladstonefamily.net.

You can try to find photographs from the area surrounding the site marker by clicking on Find nearby photographs. (There may be some)

Data Status

Over the last 28 days, no data was seen on the following dates: 2025-02-19 to 2025-02-20, 2025-03-03 to 2025-03-17.

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  

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 82% 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. Since this station has not been reporting continuously during the analysis period (it missed 17 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 .

SiteDistanceLocationBarometerTemperatureDewpoint
EW53915.6 milesNorthwest Annapolis, MD, US (lat 39.0440°, long -76.4240°, altitude 0 metres)
FW05968.1 milesWest Annapolis, MD, US (lat 38.9683°, long -76.4903°, altitude 6 metres)
GW43009.8 milesNorthwest PASADENA, MD, US (lat 39.0970°, long -76.4672°, altitude 12 metres)
K3TXT-111.8 milesWest Edgewater, MD, US (lat 38.9480°, long -76.5563°, altitude 7 metres)
EW064212.8 milesNorthwest Severna Park, MD, US (lat 39.0947°, long -76.5408°, altitude 11 metres)
FW449513.4 milesSouthwest Edgewater, MD, US (lat 38.9177°, long -76.5728°, altitude 35 metres)
CW045413.6 milesNorthwest Pasadena, MD, US (lat 39.1418°, long -76.5075°, altitude 13 metres)
GW313314.4 milesSoutheast Claiborne, MD, US (lat 38.8167°, long -76.2000°, altitude 5 metres)
CW969215.1 milesSouthwest Birdsville, MD, US (lat 38.8978°, long -76.5965°, altitude 44 metres)
GW422315.2 milesNorthwest PASADENA, MD, US (lat 39.1453°, long -76.5472°, altitude 7 metres)

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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