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Negotiating the Great Lakes Ice Maker

Ice on plane
Gemini Sparkle

Key Takeaways:

  • Thorough preflight planning is crucial for icing avoidance, focusing on understanding synoptic weather patterns, selecting optimal routes/altitudes, and identifying clear alternate destinations.
  • Continuous in-flight weather monitoring using all available resources (satellite, ATC, Flight Watch, PIREPs) is essential for adapting to evolving icing conditions.
  • Pilots must be proactive in communicating with ATC (e.g., requesting block altitudes, PIREPs) and prepared to make flexible decisions like diverting or switching flight rules to ensure safety.
  • Even without certified ice protection, utilizing modern tools and resources allows pilots to navigate potential icing environments safely by minimizing exposure and always having an "out."
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It seems as though our most vivid memories come from some of our worst experiences in life. While many pilots don’t remember their first exposure to structural icing, they probably will never forget their worst. For many, it remains etched in their brain forever. But, we can avoid making painful lasting memories if we do some careful preflight planning and use some street smarts to negotiate the system to our advantage during this icing season.

The icing environment in and around the Great Lakes region is not a place where you want to cut your teeth with respect to icing. Any instrument pilot that has experience flying in this region during the early winter is probably nodding his or her head right about now. Three years ago I helped one of my former instrument students avoid making any bad memories for a cross-country flight from Springfield, Illinois (KSPI) to Williamsport, Pennsylvania (KIPT).

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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