Users can create search criteria for specific conditions and receive observations or custom messages when matches are found. Performing data checks and quality control on real-time data are integrated into this service. Preventing false matches from flowing through a notification system is challenging; we use a combination of basic range and rate change data checks against all observations, as well as more advanced climatological and spatial tests for key weather variables. Applying a combination of these tests can be built into each notification search criteria. These criteria, or data filters, include specifying region or domain and combinations of weather variables with specific thresholds for each variable. Once triggered, users can be notified when the event is over or if the event continues to persist for the time period provided. Examples of use cases will be provided including fire weather monitoring, micro-scale events such as convective outflows that affect public safety, and hobbyist activities.