What type of information can pilots not get from SIGMET reports?

Pilots cannot obtain scheduled weather updates from SIGMET reports. SIGMETs, or Significant Meteorological Information, are specifically designed to provide timely warnings about hazardous weather conditions that may affect the safety of flight operations. These reports focus on significant weather phenomena, such as severe thunderstorms, turbulence, icing, and volcanic ash, primarily serving as real-time alerts rather than regular updates.

The nature of SIGMET reports is to alert pilots to immediate and potentially dangerous weather conditions that are currently occurring or anticipated. Scheduled weather updates, on the other hand, are generally provided through different means, such as METARs and TAFs, which offer routine weather information and forecasts over specific periods.

By understanding the purpose of SIGMET reports, pilots can comprehend that while they are critical for immediate safety concerns, they do not serve as a source for consistently scheduled weather updates like other types of weather reporting systems do.