MesoWest Information for SE245 in SCE Snowball Foothills, CA, United States Of America (site inactive)

The following information is known about SE245. 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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SE245
GW2421
GW4178
GW4982
FW2368
FW4250
K6BPM
K6ERN
GW5968
FW7638
DW9923
K6LCM-13
CW9548
W0JFB
KC6OYN
FW1035
FW9504
EW3531
EW2046
FW6609
KK6HO
N6TVE-11
EW6431
FW8729
GW4448
FW7879
GW5094
FW8694
DW7412
EW8411
CW7664
FW4689
CW4488
FW8695
WA6ZSN
DW4415
K5KHP
GW0869
DW2070
EW3855
GW5599
EW7577
DW0328
DW1941
DW0912
EW9395
DW9395
FW8698
KB6OQJ
FW8697
DW0915
EW1625
CW9443
FW0112
DW5145
GW3329
EW0673
CW9206
DW7457
EW4921
GW4144
EW1856
EW0094
KE6RLG
FW1972
FW9489
FW6046
EW8196
EW1734
DW0345
GW1981
DW5544
CW0623
DW4390
FW0577
FW7887
DW2363
FW2132
GW0054
FW4236
K7AZ
CW1909
DW4531
GW1098
EW2805
GW2835
DW0529
EW8682
FW8202
GW0783
FW3101
KB6LA
GW3385
CW5551
GW5491
FW9262
DW4674
W6KL
CW6335
N6WT
K6LOT-13
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Registered Location

Latitude: 34° 24' 40" N (deg min sec), 34.4111° (decimal), 3424.67N (LORAN)
Longitude: 119° 30' 9" W (deg min sec), -119.5024° (decimal), 11930.14W (LORAN)
Elevation: 30 metres (97 feet) -- validated against 32 metres (105 feet) from Geonames
Location: SCE Snowball Foothills, CA, United States Of America
County: Santa Barbara, CA
Data provider: SC-EDISON
Forecast Office: Los Angeles (LOX)

The site location should be at the mark shown -- or very close. Clicking within the map area (or you can drag the 'SE245' 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 se245@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 error0.7 °F-0.1 °F1.3 °F
Error standard deviation2.2 °F2.1 °F2.0 °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.

 
 
MADIS
rating
MADIS rating 99% QC OK
 

Latest daily graph:

Latest daily graph

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-2.7 °F-1.8 °F-3.3 °F
Error standard deviation2.4 °F2.6 °F2.1 °F
Worst average dewpoint error-3.7 °F-3.4 °F-4.8 °F
Worst standard deviation3.9 °F4.7 °F2.6 °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.

  Mean error (-2.7) out of range, but low standard deviation (2.4)
 
MADIS
rating
MADIS rating 98% QC OK
 

Latest daily graph:

Latest daily graph

There is a significant mean error in your dewpoint readings. You may need to calibrate your dewpoint sensor. 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.

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 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: Los Angeles (LOX) .

SiteDistanceLocationBarometerTemperatureDewpoint
GW24211.5 milesSouth Carpinteria, CA, US (lat 34.3900°, long -119.5100°, altitude 15 metres) 5.8°F2.3°F
K6LCM-1312.5 milesWest SANTA BARBARA, CA, US (lat 34.4012°, long -119.7203°, altitude 61 metres) 2.8°F1.3°F
W0JFB13.8 milesWest Santa Barbara, CA, US (lat 34.4378°, long -119.7425°, altitude 65 metres) 4.1°F4.3°F
EW353117.8 milesSoutheast Ventura, CA, US (lat 34.2695°, long -119.2412°, altitude 45 metres) 4.9°F2.8°F
EW204617.9 milesWest Santa Barbara, CA, US (lat 34.4572°, long -119.8107°, altitude 37 metres) 3.2°F3.8°F
FW660918.2 milesSoutheast Ventura, CA, US (lat 34.2738°, long -119.2315°, altitude 91 metres) 3.4°F2.7°F
FW872920.5 milesSoutheast Ventura, CA, US (lat 34.2788°, long -119.1813°, altitude 84 metres) 3.3°F4.3°F
FW787920.6 milesSoutheast Ventura, CA, US (lat 34.2717°, long -119.1833°, altitude 90 metres) 2.3°F4.8°F
GW509421.1 milesSoutheast VENTURA, CA, US (lat 34.2718°, long -119.1743°, altitude 17 metres) 4.6°F4.9°F
FW869422.1 milesEast Santa Paula, CA, US (lat 34.3165°, long -119.1328°, altitude 76 metres) 6.5°F7.0°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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