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The Ins and Outs of Pilot Weather Reports

PIREPs are those rare commodities that GA pilots yearn for during preflight planning or while en route.

Pilot weather reports, or PIREPs, are those rare commodities that GA pilots yearn for during preflight planning or while en route. [iStock]
Gemini Sparkle

Key Takeaways:

  • Pilot Weather Reports (PIREPs) are vital for all aviation stakeholders, including pilots, meteorologists, and air traffic controllers, providing essential real-time "ground truth" for preflight planning, en route decision-making, and the issuance/cancellation of critical advisories like SIGMETs.
  • PIREPs are incorporated into automated weather guidance products, such as the Current Icing Product (CIP) and Graphical Turbulence Guidance (GTG), enhancing their accuracy; consequently, precise and timely reports (e.g., specific altitudes, conditions) are crucial for their effectiveness and have a short shelf life.
  • Despite challenges in busy airspace, pilots can file PIREPs via Flight Service, ATC (for urgent conditions), or dedicated online apps, and are encouraged to do so, prioritizing the overall safety benefits and acknowledging that the primary goal is not self-incrimination.
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Every January 1, I tend to have the same New Year’s resolutions that involve losing at least 5 pounds by year’s end, exercising daily, and making at least one pilot weather report on every flight. I do a fair job with the weight and exercise goals but seem to find myself falling short on making those pilot reports. Somehow, I manage to dream up a bunch of lame excuses not to make them.

Pilot weather reports, more simply known as PIREPs, are those rare commodities that general aviation pilots yearn for during preflight planning or while en route using datalink weather. They are vital since they answer these basic questions: At what altitude will I likely encounter ice? What is the severity of those icing conditions? What is the severity of turbulence at my planned altitude? And the most frequently asked question: What altitude will I find the cloud tops?

Scott Dennstaedt, Ph.D

Scott resides in Charlotte, North Carolina, and flies regularly throughout the Mid-Atlantic and Southeast U.S. He is a CFI and former NWS meteorologist. Scott is the author of "The Skew-T log (p) and Me: A Primer for Pilots" and the founder of EZWxBrief.

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