Controllers must advise pilots of hazardous weather within how many nautical miles of their sector?

Controllers are required to advise pilots of hazardous weather that is occurring within 150 nautical miles of their sector to ensure safety and enhance situational awareness. This distance is critical because hazardous weather, such as thunderstorms, turbulence, or other significant meteorological conditions, can impact flight safety even if the aircraft is not directly in the affected area. By providing this information, controllers help pilots make informed decisions regarding route adjustments, altitude changes, or avoidance tactics, thus reducing the risk of accidents associated with encountering severe weather. This practice is part of the overall responsibility of air traffic controllers to ensure the safety and efficiency of air navigation in their respective sectors.