An aviation weather control system comprising: a processing unit configured to receive weather information (a) of an area to be overseen and specify a weather phenomenon affecting an airplane (f) based on the received weather information (a), wherein the weather information (a) includes a vertically integrated liquid water content, and wherein the processing unit includes: means for storing map information of the area to be overseen; means for determining a heavy rain core (j) based on the vertically integrated liquid water content, approximating the determined core (j) to a spherical shape; means for determining, using the map information, a range as a hazardous area (d) when the weather phenomenon is specified as the range which is inside tangent lines (r1, r2) drawn to the core (j) from an end of a runway on a side where the airplane (f) either takes off or lands and within a certain distance from an airport provided with the runway; means for selecting an airplane (f) when present in the hazardous area (d) as the airplane (f) affected by the weather phenomenon based on the determined hazardous area (d) and previously stored airplane takeoff/landing information of airplanes, which includes a position, an altitude, and a call sign of the airplane (f); means for predicting the weather phenomenon and the hazardous area (d) after a certain period of time based on current and past versions of the weather information (a); means for predicting a future flight route (g) of the airplane (f) after a certain period of time based on flight plan information of the airplane (f); and means for selecting an airplane (f) predicted to be affected by the weather phenomenon after a certain period of time based on the predicted hazardous area and the predicted future flight route of the airplane (f); and a notification unit configured to notify to a controller by displaying on a display screen the weather phenomenon specified by the processing unit, the hazardous area (d) determined by the processing unit and the selected airplane (f). means for storing map information of the area to be overseen; means for determining a heavy rain core (j) based on the vertically integrated liquid water content, approximating the determined core (j) to a spherical shape; means for determining, using the map information, a range as a hazardous area (d) when the weather phenomenon is specified as the range which is inside tangent lines (r1, r2) drawn to the core (j) from an end of a runway on a side where the airplane (f) either takes off or lands and within a certain distance from an airport provided with the runway; means for selecting an airplane (f) when present in the hazardous area (d) as the airplane (f) affected by the weather phenomenon based on the determined hazardous area (d) and previously stored airplane takeoff/landing information of airplanes, which includes a position, an altitude, and a call sign of the airplane (f); means for predicting the weather phenomenon and the hazardous area (d) after a certain period of time based on current and past versions of the weather information (a); means for predicting a future flight route (g) of the airplane (f) after a certain period of time based on flight plan information of the airplane (f); and means for selecting an airplane (f) predicted to be affected by the weather phenomenon after a certain period of time based on the predicted hazardous area and the predicted future flight route of the airplane (f); and a notification unit configured to notify to a controller by displaying on a display screen the weather phenomenon specified by the processing unit, the hazardous area (d) determined by the processing unit and the selected airplane (f).