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San Diego Mesonet (SDM) |
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| What is the SDM and how will it help? |
The San Diego Mesonet (SDM) is a network designed to
obtain vital weather information that will increase the accuracy of
forecasts and warnings from the National Weather Service (NWS) in San
Diego. It is a growing network of weather stations across our
region that report hourly weather information directly to our office and
augments the weather network already established in
our region. How will it help us? The mission of the NWS in San Diego is
to protect lives and property from the adverse affects of weather
throughout a portion of Southern California replete with unique climates
and countless microclimates. Many weather phenomena are very small in
scale, things like thunderstorms or strong winds, which can miss our
equipment and our detection. Southern California’s dense population
increases the impact whenever threatening weather occurs. With the SDM, forecasters will know better exactly what is going on, where, and
when. With this added information, more accurate forecasts and warnings
are on the way.
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| Where do we need it the most? |
Orange County:
- Northern (Yorba Linda, Anaheim, Orange, Santa Ana, etc...)
- Southern Coastal (Newport Beach, Laguna Beach, etc...)
San Bernardino County:
- Desert (Helendale, Phelan, Lucerne Valley, Johnson Valley, etc...)
- Mountain (Crestline, Lake Arrowhead, Big Bear Lake, Forest Falls, etc...)
- Valley (Upland, San Bernardino, Redlands, Yucaipa, etc...)
Riverside County:
- Desert (Desert Hot Springs, Indio, etc...)
- Mountain (Idyllwild, Garner Valley, Mount San Jacinto, etc...)
- Valley (Riverside, Lake Elsinore, Hemet, Sage, Aguanga, etc...)
San Diego County:
- Desert (Ocotillo Wells, Canebrake, Shelter Valley, etc...)
- Mountain (Warner Springs, Pine Valley, Jacumba, etc...)
- Valley (El Cajon, Encanto, Jamul, Dulzura, etc...)
- Coast (Vista, Rancho Santa Fe, National City, Chula Vista, etc...)
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| Can I help? |
We invite you to be part of the network. To be considered, you will need to meet the following requirements:
- Provide a broad-band Internet connection (DSL or Cable Modem) and weather software that will automatically report hourly weather (we can help to configure your weather software) to us via ftp at your expense.
- Provide and maintain your weather station that includes at least temperature, wind speed and direction and a rain gauge that measures 0.01 inch increments at your expense.
- Agree to comply with the terms of the Terms of Agreement.
If your site is considered, we will ask you to send us digital photos to further assess the proper placement and location of the equipment. We may suggest adjustments to ensure accuracy and reliability of the data. Once confidence is attained in the suitability of your site, we will arrange to visit your site to make the final approval of the equipment siting. A technician will make the necessary computer hook-ups to transmit the data directly to the NWS office.
By helping us in this way, you can gain the satisfaction of contributing to better weather safety and awareness in our region and add to the accuracy of forecasts. Your data will also appear on our web site as part of our observation and forecast pages.
We know there are many weather enthusiasts among you who have installed weather equipment on your property. If you are one of these, and would like to assist the NWS fulfill our mission, please click here to submit a request application. We will consider all the applicants, but will consider most seriously those who are located in areas where we have no equipment currently (see list above). We’ll respond whether you are considered or not. Thanks for your interest.
If you have any questions or concerns, please email Webmaster.
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| Current SDM Map, Sample Reports, and Other Information |
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www.weather.gov 
