MesoWest Information for ODT12 in Zoo Bridge (US 26 MP 72), OR, United States Of America (site inactive)

The following information is known about ODT12. 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.
For development purposes only
Sorry, we have no imagery here.
ODT12
EW4831
EW6890
EW5093
KF7HDR
DW3557
FW8831
FW2157
DW6123
EW1914
FW8409
GW2905
EW2235
FW2189
CW5646
GW1777
KM6ZMV
DW4360
FW5278
KF7IOR
DW4881
KC7CDD
EW1617
EW1133
GW3760
GW5597
FW7314
DW3762
GW4449
EW2024
EW1829
EW7517
FW0232
DW6016
KI7RM-1
EW4932
CW3453
FW9318
KD7RJ
DW2050
FW4655
GW2185
EW5295
FW4628
FW4829
KA7IKB-2
GW3771
FW9116
FW8005
DW2889
DW4839
FW4242
FW4241
CW7563
EW4438
GW0282
KI7MOQ
KK7DS
EW9917
EW8380
FW0553
FW8857
GW0244
DW5310
GW2516
CW3999
FW6402
KD7CTY
EW9430
GW5460
DW2058
FW6494
N7BTW-13
DW8151
EW6055
GW3100
FW2305
GW5324
GW2496
DW0677
DW7980
DW1830
GW4652
EW9240
FW2116
FW6934
EW2839
EW0159
N7OFW
GW3210
DW4130
CW5416
FW6341
FW0409
FW3327
AA0PB
FW1632
KK7N
K5VP
K2PO
CW8164
Google
Image may be subject to copyright
This page can't load Google Maps correctly.
Do you own this website?
  Larger  Smaller  Google Earth.

Registered Location

Latitude: 45° 30' 25" N (deg min sec), 45.5069° (decimal), 4530.41N (LORAN)
Longitude: 122° 43' 8" W (deg min sec), -122.7190° (decimal), 12243.14W (LORAN)
Elevation: 183 metres (600 feet) -- validated against 188 metres (618 feet) from Google
Location: Zoo Bridge (US 26 MP 72), OR, United States Of America
County: Multnomah, OR
Data provider: ODOT
Forecast Office: Portland (PQR)

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'ODT12' 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 odt12@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 91 days, no data was seen on the following dates: 2024-12-14 to 2024-12-22, 2024-12-26 to 2024-12-30, 2025-01-27 to 2025-02-20, 2025-03-03 to 2025-03-13.

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 91 days. Change analysis period to Last 3 days  Last 7 days  Last 14 days  Last 4 weeks  Last 8 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.

Temperature

  24 hours  Day time  Night time
Average temperature error0.6 °F0.5 °F0.6 °F
Error standard deviation1.6 °F2.1 °F1.2 °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 98% QC OK
 

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-0.2 °F0.2 °F-0.5 °F
Error standard deviation2.1 °F2.4 °F1.8 °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
MADIS rating 100% QC OK
 

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 100% 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 50 days out of 91), 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: Portland (PQR) .

SiteDistanceLocationBarometerTemperatureDewpoint
EW48311.0 milesSouth Portland, OR, US (lat 45.4933°, long -122.7238°, altitude 126 metres) 0.7°F0.8°F
EW50931.8 milesNortheast Portland, OR, US (lat 45.5302°, long -122.7014°, altitude 41 metres) 1.4°F0.7°F
GW29054.0 milesNorthwest Portland, OR, US (lat 45.5463°, long -122.7800°, altitude 182 metres) 0.7°F1.6°F
DW43604.8 milesEast Portland, OR, US (lat 45.4958°, long -122.6205°, altitude 53 metres) 1.5°F-0.4°F
FW52784.9 milesEast Portland, OR, US (lat 45.5117°, long -122.6175°, altitude 51 metres) 1.8°F0.3°F
KF7IOR5.0 milesNortheast PORTLAND, OR, US (lat 45.5438°, long -122.6295°, altitude 50 metres) 2.4°F1.4°F
KC7CDD5.2 milesNorth Portland, OR, US (lat 45.5810°, long -122.7310°, altitude 46 metres) 2.1°F-0.4°F
EW11335.4 milesSouth Lake Oswego, OR, US (lat 45.4295°, long -122.7375°, altitude 102 metres) 0.8°F1.1°F
GW37605.5 milesSouth LAKE OSWEGO, OR, US (lat 45.4285°, long -122.7377°, altitude 97 metres) 1.3°F1.1°F
DW37625.9 milesEast Portland, OR, US (lat 45.4915°, long -122.5987°, altitude 70 metres) 1.4°F-0.1°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 106224 similar pages. This one was generated in 0.45 seconds.
BESbswy
BESbswy