MesoWest Information for UP633 in Mecca, CA, United States Of America (site inactive)

The following information is known about UP633. 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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UP633
GW4045
EW0772
EW3298
GW4393
DW0742
GW2765
GW4696
DW9108
FW7082
CW2285
GW4109
EW1631
AA6HF
EW3393
FW8322
GW0998
FW3842
DW3583
EW9911
EW7734
EW9981
CW1828
FW6882
FW6883
EW3443
FW6884
GW0500
CW7929
EW9979
KF6ILA
EW3204
GW3928
DW6178
KF6ILA-10
EW4618
FW8651
FW9926
CW7802
CW2900
FW0019
EW1401
CW4086
DW7835
N6GIW
FW6122
FW1419
FW8858
KG6SIB
FW0527
EW7004
CW9939
FW4660
K7FLA
FW6209
FW2736
EW1292
FW0132
GW2350
CW4141
GW3126
FW0381
EW6547
KG6YVD-10
WB6EDK-1
GW0974
DW9888
EW3263
W6NWF
CW1772
DW3590
DW8313
GW2085
EW3043
N6BWX
GW5281
EW3236
CW2462
EW9437
FW8806
GW0544
FW0145
FW0664
EW9887
FW0958
KI6AOK
EW3759
FW8337
EW9965
EW3241
DW1910
GW2375
FW8084
EW4542
FW9876
EW9869
GW5788
EW6473
EW5843
DW4064
EW2652
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Registered Location

Latitude: 33° 32' 40" N (deg min sec), 33.5445° (decimal), 3332.67N (LORAN)
Longitude: 116° 2' 20" W (deg min sec), -116.0388° (decimal), 11602.33W (LORAN)
Elevation: -56 metres (-186 feet) -- validated against -57 metres (-187 feet) from NED 1/9th arc-second: Salton Sea California
Location: Mecca, CA, United States Of America
County: Riverside, CA
Data provider: UPR
Forecast Offices: San Diego (SGX), Phoenix (PSR)

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'UP633' 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 up633@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 28 days, no data was seen on the following dates: 2025-02-18 to 2025-02-20, 2025-03-03 to 2025-03-16.

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  

Temperature

  24 hours  Day time  Night time
Average temperature error107.0 °F114.5 °F100.6 °F
Error standard deviation13.0 °F11.5 °F10.6 °F
Worst average temperature error112.3 °F123.7 °F108.1 °F
Worst standard deviation14.5 °F12.8 °F11.3 °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.

  Both day (mean error 114.5, sd 11.5) and night (mean error 100.6, sd 10.6) values out of range
 
MADIS
rating
MADIS rating 0% QC OK
Sensor fails following checks:
L3 Spatial Consistency
 

Latest daily graph:

Latest daily graph

The values returned by your sensor indicate a system problem. This can be caused by a 'stuck' sensor that always reports the same value. Please check your station for proper operation.

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 97% 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 . For stations covered by your Forecast Office: San Diego (SGX),Phoenix (PSR) .

SiteDistanceLocationBarometerTemperatureDewpoint
EW077210.8 milesNorthwest Coachella, CA, US (lat 33.6688°, long -116.1535°, altitude -27 metres) -108.0°F
EW329814.7 milesNorthwest Indio, CA, US (lat 33.6968°, long -116.2165°, altitude -5 metres) -103.7°F
GW276523.5 milesNorthwest Palm Desert, CA, US (lat 33.7223°, long -116.3868°, altitude 239 metres) -105.7°F
GW469625.1 milesNorthwest PALM DESERT, CA, US (lat 33.7772°, long -116.3730°, altitude 92 metres) -104.4°F
DW910827.8 milesSouthwest Borrego Springs, CA, US (lat 33.2713°, long -116.3917°, altitude 199 metres) -103.3°F
EW339330.9 milesNorthwest Sky Valley, CA, US (lat 33.8942°, long -116.3720°, altitude 324 metres) -105.2°F
CW182841.5 milesNorthwest Joshua Tree, CA, US (lat 34.0975°, long -116.3175°, altitude 1036 metres) -110.7°F
EW344342.8 milesNorth Twentynine Palms, CA, US (lat 34.1617°, long -116.0972°, altitude 649 metres) -113.8°F
FW688442.9 milesWest Pine Cove Water Office, CA, US (lat 33.7612°, long -116.7373°, altitude 1890 metres) -113.5°F
GW392846.3 milesNorthwest YUCCA VALLEY, CA, US (lat 34.1615°, long -116.3535°, altitude 968 metres) -107.5°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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