Ryan Maue

Extreme cold in the mid-levels of the atmosphere (500 mb) below -42°C centered on Chicago at 06z Monday morning (November 10, 2025)

Very rare / epic event unexpected (not normal) for so early in the fall/winter season.

-40°C contour typically found in Arctic or Siberia in Dec/Jan

10.11.2025 15:29 — 👍 1    🔁 0    💬 0    📌 0

Temperatures across the Lower 48 were chilly Thursday morning, almost 6°F below normal for October 30th.

30.10.2025 17:11 — 👍 1    🔁 0    💬 0    📌 0