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Real-Time Rainfall Totals
Real Time Data
Near real time rainfall accumulations. The data provided by the ALERT telemetry system is automatically updated every 8 to 12 minutes. The rainfall maps show individual rain gage accumulations overlaid on a map of Orange County. The upper left hand corner of each map display shows the date, ending time, and time period for the data displayed on the map.
Provides current rainfall accumulations for the previous one, two, and three days ending at 8:00 AM. The rainfall maps show individual rain gage accumulations overlaid on a map of Orange County. The data is automatically updated by the ALERT System between 8:00 and 9:00 AM daily.
Current real time data can also be found on our Arc GIS web app below, or by clicking here. (For best performance- use Google Chrome or Mozilla Firefox browser. Right click the link and select copy shortcut.)
Accuracy of Information - Use of Information: Although the data found using the County of Orange, OC Public Works Department access systems have been produced and processed from sources believed to be reliable, no warranty expressed or implied is made regarding accuracy, adequacy, completeness, legality, reliability or usefulness of any information. This disclaimer applies to both isolated and aggregate uses of the information.
The County of Orange, OC Public Works Department provide this information on an "as is" basis. All warranties of any kind, express or implied, including but not limited the implied warranties of merchantability, fitness for a particular purpose, freedom from contamination by computer viruses and non-infringement of proprietary rights ARE DISCLAIMED.
Changes may be periodically added to the information herein; these changes may or may not be incorporated in any new version of the publication. If you have obtained information from County of Orange, OC Public Works Department or from a source other than County of Orange, OC Public Works Department, be aware that electronic data can be altered subsequent to original distribution. Data can also quickly become out-of-date. It is recommended that careful attention be paid to the contents of any metadata associated with a file, and that the originator of the data or information be contacted with any questions regarding appropriate use. If you find any errors or omissions, we encourage you to report them to the County of Orange, OC Public Works Department.
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