METAR Information for KPSC (PSC) in TRI-CITIES AIRPORT, WA, United States (site inactive)

The following information is known about KPSC. 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.
KPSC
AD7CQ
GW5454
GW3765
GW3448
DW6561
EW8494
DW9686
K7KOG
DW9572
CW6988
DW9004
KF7FMI-13
DW9931
DW0462
NB7O
EW4849
EW4185
EW5035
EW4492
DW9695
EW6266
CW0682
N7QNM-13
DW6278
EW5837
DW9612
GW5817
CW2444
K7KLA-2
CW0988
CW1075
K7DTF
GW5567
EW7176
K7KLA
EW1881
DW2789
WB7CYS
EW2270
WA7V
EW8735
EW3836
GW2790
EW4908
EW7293
CW2313
DW5444
FW4346
EW3064
EW4205
DW6232
DW0310
EW4092
CW6302
FW2477
GW5519
GW4512
CW9803
DW5434
KK7GO-7
EW2072
EW1076
DW9732
W7BL
K7RMR
EW2137
DW8374
EW4750
WD6CGF
GW0235
DW1028
GW2282
DW3138
CW1102
DW3793
DW7538
EW0859
DW6879
DW6220
EW2755
EW3937
GW5886
FW5403
FW9819
DW8222
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Registered Location

Latitude: 46° 16' 10" N (deg min sec), 46.2696° (decimal), 4616.17N (LORAN)
Longitude: 119° 7' 5" W (deg min sec), -119.1181° (decimal), 11907.09W (LORAN)
Elevation: 124 metres (407 feet) -- validated against 121 metres (398 feet) from Google
Location: TRI-CITIES AIRPORT, WA, United States
County: Franklin, WA
Forecast Office: Pendleton (PDT)
Airport diagram: PDF from FAA
Automated weather phone (ASOS): 509-547-7379
Observing program(s): AIRWAYS COOP

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'KPSC' 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 13 data sources. This position has been modified based on user feedback.

Show location history.

There are no photographs of the station. If you have pictures of this location, then please email them to kpsc@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 5 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 7 days. Change analysis period to Last 3 days  Last 14 days  Last 4 weeks  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.

Barometer

Average barometer error: -0.3 milliBars
Error standard deviation: 0.7 milliBars

 
MADIS
rating
MADIS rating 95% 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 error2.5 °F1.3 °F2.6 °F
Error standard deviation2.2 °F1.2 °F2.2 °F
Worst average temperature error-1.0 °F-1.0 °F-1.0 °F
Worst standard deviation0.0 °F0.0 °F0.0 °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.

  Daytime mean error (1.3) and night time mean error (2.6) both large and positive
 
MADIS
rating
MADIS rating 96% QC OK
 

You can choose the graph to be displayed by choosing one of the underlined 'worst' readings above. This will show you the graph for the day when this event happened.

Comparison graph for day marked in bold above:

Comparison graph for 2025-03-01

Your readings are not within an acceptable error range. The automated problem analysis cannot identify the problem. You can signup on the wxqc mailing list and post information about this situation there. This is may be caused by poor siting of the sensor (e.g. under eves, in screen porch, or in thick tree coverage). For information on siting, see CWOP Station Guide.

Relative Humidity -- or switch to Dewpoint

  24 hours
Average humidity error-5.0 %
Error standard deviation7.1 %
Worst average humidity error-10.9 %
Worst standard deviation6.2 %

NOTE: If the error above is POSITIVE, then it means that the analysis humidity is HIGHER than the reported humidity. This means that your sensor is reading DRYER than expected.

  QC only available for Dewpoint.

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. 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 0% QC OK
Sensor fails following checks:
L3 Spatial Consistency
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: Pendleton (PDT) .

SiteDistanceLocationBarometerTemperatureDewpoint
AD7CQ2.7 milesWest Kennewick, WA, US (lat 46.2730°, long -119.1743°, altitude 159 metres) 2.3mb-3.0°F-0.6°F
GW54543.4 milesSouthwest PASCO, WA, US (lat 46.2342°, long -119.1672°, altitude 106 metres) 0.8mb-1.7°F-1.2°F
GW37654.6 milesSouth KENNEWICK, WA, US (lat 46.2030°, long -119.1280°, altitude 125 metres) 1.0mb-2.8°F-0.9°F
GW34485.5 milesSouth KENNEWICK, WA, US (lat 46.1937°, long -119.1510°, altitude 161 metres) 1.2mb-3.9°F-2.0°F
DW65617.4 milesSouth Kennewick, WA, US (lat 46.1707°, long -119.1762°, altitude 267 metres) -0.0mb-4.2°F0.0°F
EW84948.6 milesNorthwest Pasco, WA, US (lat 46.3760°, long -119.2100°, altitude 216 metres) 1.8mb-2.6°F5.7°F
DW968610.2 milesNorth Pasco, WA, US (lat 46.4162°, long -119.1408°, altitude 247 metres) 0.5mb-2.0°F0.8°F
K7KOG11.0 milesSoutheast KENNEWICK, WA, US (lat 46.1250°, long -119.0207°, altitude 145 metres) -1.6mb-2.1°F-2.8°F
DW957217.4 milesWest Benton City, WA, US (lat 46.3583°, long -119.4595°, altitude 166 metres) 0.5mb-4.4°F-0.3°F
KF7FMI-1319.6 milesWest PROSSER, WA, US (lat 46.2130°, long -119.5190°, altitude 455 metres) -2.1mb-2.9°F-1.3°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
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