Mmastodon WorldEU Politics first seen 3 h ago, last 3 h ago, peak #8
October snow signal for winter forecasts has shifted, analysis finds
Original: I tested the famous October snow winter signal over the past 47 winters, and it shows the signal has shifted. Here is wh
A weather analyst examined the well-known October snow cover index across the past 47 winters and concluded the signal has weakened or shifted, prompting a reassessment of what actually drives winter patterns. The analysis points instead to factors like ENSO and the polar vortex in shaping expectations for Winter 2026/2027 across the United States, Canada, and Europe.
Why now: Winter forecast season is under way and people are debating how reliable traditional snow-cover indicators still are.
United StatesCanadaEuropeENSOpolar vortex
Evidence
- I tested the famous October snow winter signal over the past 47 winters, and it shows the signal has shifted. Here is what really matters for Winter 2026/2027 across the United States, Canada, and Europe # ENSO # europe # forecast # PolarVortex # snow # unitedstates # winter… · severeweathereu@friendica.helvetet.eu · 2
API: https://socialmediatrends-api.osmike.com/v1/trends/1646915