MesoWest Information for SE415 in SCE Vernon Rd, CA, United States Of America (site inactive)

The following information is known about SE415. 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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SE415
FW3842
FW8322
AA6HF
EW3393
FW6883
CW2285
FW6884
EW9981
FW6882
FW8858
CW7929
GW4696
GW2765
K7FLA
CW1828
EW6547
DW0742
CW4086
CW2900
GW3928
FW1419
GW0998
N6GIW
EW7004
DW8313
CW1772
EW3043
N6BWX
EW9887
FW2736
FW0664
FW4660
EW3298
GW2375
EW9869
DW7835
EW6473
EW1292
FW9733
EW0772
EW3443
EW3172
DW0394
FW6602
DW3590
EW9911
EW9931
CW4141
FW1313
GW3218
FW9244
N6AMM
GW4839
FW0025
FW4845
FW0145
GW4045
EW9934
N6GPM
DW4438
GW3126
FW0823
EW9930
GW2350
KF6ILA-10
WA6TJQ
FW9926
W6FL
GW5965
EW9929
FW8806
FW8651
FW0494
W3SN-13
DW6178
EW1401
KB6HGN
EW3127
KG6YVD-10
DW9108
FW0132
GW4109
EW4050
FW6613
DW7531
DW3973
CW7445
EW3060
KJ6HT
GW4544
FW9698
EW4542
FW4319
FW6209
WX6YYZ
EW5843
CW9939
KI6KEP
FW9876
EW7239
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Registered Location

Latitude: 33° 55' 56" N (deg min sec), 33.9322° (decimal), 3355.93N (LORAN)
Longitude: 116° 36' 9" W (deg min sec), -116.6025° (decimal), 11636.15W (LORAN)
Elevation: 361 metres (1185 feet) -- validated against 359 metres (1178 feet) from Geonames
Location: SCE Vernon Rd, CA, United States Of America
County: Riverside, CA
Data provider: SC-EDISON
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 'SE415' 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 se415@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 182 days, no data was seen on the following dates: 2024-09-13 to 2024-09-30, 2024-10-28 to 2024-11-03, 2024-11-26 to 2024-12-22, 2024-12-26 to 2024-12-30, 2025-01-27 to 2025-02-20, 2025-03-03 to 2025-03-12.

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 182 days. Change analysis period to Last 3 days  Last 7 days  Last 14 days  Last 4 weeks  Last 8 weeks  Last 13 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 error-0.4 °F-0.1 °F-0.6 °F
Error standard deviation1.7 °F1.5 °F1.7 °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 99% 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-0.0 °F-0.1 °F-0.0 °F
Error standard deviation1.6 °F1.6 °F1.5 °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
MADIS rating 99% 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 80% 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 92 days out of 182), 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
FW688414.1 milesSouthwest Pine Cove Water Office, CA, US (lat 33.7612°, long -116.7373°, altitude 1890 metres) -6.6°F6.5°F
GW469617.0 milesSoutheast PALM DESERT, CA, US (lat 33.7772°, long -116.3730°, altitude 92 metres) 7.4°F-10.7°F
GW276519.1 milesSoutheast Palm Desert, CA, US (lat 33.7223°, long -116.3868°, altitude 239 metres) 6.6°F-11.0°F
CW290021.1 milesNortheast Yucca Valley, CA, US (lat 34.1900°, long -116.4067°, altitude 1078 metres) 0.8°F2.9°F
GW392821.3 milesNortheast YUCCA VALLEY, CA, US (lat 34.1615°, long -116.3535°, altitude 968 metres) 2.9°F3.9°F
FW141922.1 milesSouthwest Hemet, CA, US (lat 33.7530°, long -116.9203°, altitude 516 metres) 10.1°F-7.6°F
EW700423.4 milesSouthwest San Jacinto, CA, US (lat 33.7962°, long -116.9762°, altitude 464 metres) 9.3°F-8.6°F
DW831324.9 milesWest Yucaipa, CA, US (lat 34.0420°, long -117.0162°, altitude 948 metres) 3.2°F-3.7°F
FW273626.6 milesWest San Jacinto, CA, US (lat 33.7983°, long -117.0370°, altitude 461 metres) 9.8°F-8.6°F
FW466027.3 milesSouthwest Hemet, CA, US (lat 33.7315°, long -117.0107°, altitude 464 metres) 10.1°F-8.8°F

The sites marked above thus did not report continuously during the analysis period, so the offsets may (probably will) not be accurate.

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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