![]() Precipitation is measured in millimeters, but you can change the unit to inches for the U.S.Here you see a simple color scale from blue and green (little precipitation) to red and magenta (a lot of precipitation).It is more convenient to get a forecast of accumulated precipitation in the form of a weather map. How to read an accumulated precipitation map? So, the accumulated precipitation gives a general idea of precipitation in a particular region for a period of time up to 10 days in the future or in the part. Let's say there was a severe drought somewhere, but you see that it's going to rain a lot in the next few days. Perhaps for certain sports or types of travel, heavy rainfall can also be an advantage. If you're hiking or biking, you may also want to change your route or go around that area to avoid discomfort or difficulty while doing various sports and outdoor activities. Or, for example, heavy rainfall in general always indicates that some area has become very wet - land, forest, rocks, roads - it can be problematic to move around in this area.Crossing even a small and weak river can be dangerous, you can easily be carried away by the current. Usually, the heavier and longer the rainfall, the more flooded the rivers become. For example, it may be necessary for those who are going to hike, let's say, in the canyons of Zion National Park in the United States, in order to know how much the rivers are flooded after the rain and whether it will be possible to cross them.Knowing the accumulated precipitation can be useful in many cases for various sports and outdoor activities: Photo: M-h / Unsplash Why do you need to know about accumulated precipitation Yes, you can check cumulative precipitation not only as a forecast for the future but also as a statistic of past weather data or weather history. Or: how much rain has fallen or will fall in total. Sometimes you may see longer weather forecasts, but they are less accurate.Īccumulated precipitation is the sum of precipitation over a certain period of time in a certain place. (In case you missed our lesson in the Meteorological Textbook on what precipitation is, read it on the website.)ĭepending on the weather model, like ECMWF for example, the precipitation forecast is made every three hours for today, tomorrow, the day after, and the next 10 days. Precipitation is moisture in the atmosphere that falls to the ground in the form of rain, snow, or hail. In this article, we'll explain what cumulative precipitation is, how it differs from normal precipitation, and how to read the accumulated precipitation map. We plan to make that information available here for our community too.In addition to the precipitation forecast you already know, sometimes it is useful to check accumulated precipitation for various sports. The data will allow the SRFD to identify potential wildfire threats within the city limits and be better prepared. During the September 2022 heat event, the RAWS was placed in the upper elevations of Fountaingrove and firefighters were able to monitor the drastic differences in temperature, wind and humidity in the hills of Santa Rosa versus our valley floor. The sixth RAWS is a portable station and can be deployed around the city as needed. The information will provide the Fire Department and our Emergency Management team better situational awareness year-round, including fire season and winter storms. Five of stations have been strategically placed around the city on Fire and Water Department properties and will monitor local weather conditions. The Santa Rosa Fire Department (SRFD) received grant funding through FEMA and CAL OES to purchase six Remote Automatic Weather Stations (RAWS). Coming Soon to This Page: Fire Remote Automatic Weather Stations (RAWS) Information:
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