Entity dossier

polar vortex

16 recorded attention episodes across CA, US, GB.

At a glance

The dossier

Episodes: 16
Verified stories: 1
Regions: CA, GB, US
Coverage signals: 58

Tracked from Sep 16, 2026 through Nov 11, 2026.

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Interactive attention record

Latest episode

WITT Attention Index for polar vortex in CA. It combines a public traffic bucket, change in that bucket, attached coverage and cross-region presence.

View accessible data table

Observed	Traffic bucket	Attention Index
Nov 11, 03:30 UTC	1000+	56.0
Nov 11, 03:34 UTC	1000+	55.0
Nov 11, 03:40 UTC	1000+	55.0
Nov 11, 03:50 UTC	1000+	55.0
Nov 11, 03:54 UTC	1000+	55.0
Nov 11, 04:00 UTC	1000+	55.0
Nov 11, 04:10 UTC	2000+	67.6
Nov 11, 04:14 UTC	2000+	58.6
Nov 11, 04:20 UTC	2000+	58.6
Nov 11, 04:30 UTC	2000+	58.6
Nov 11, 04:34 UTC	2000+	58.6
Nov 11, 04:40 UTC	2000+	58.6
Nov 11, 04:50 UTC	2000+	58.6
Nov 11, 04:54 UTC	2000+	58.6
Nov 11, 05:00 UTC	2000+	58.6
Nov 11, 05:10 UTC	2000+	58.6
Nov 11, 05:14 UTC	2000+	58.6
Nov 11, 05:20 UTC	2000+	58.6
Nov 11, 05:50 UTC	5000+	72.4
Nov 11, 05:54 UTC	5000+	63.4

Episode history

igniting CA

November 11, 2026

Peak index: 72
Detected: 03:30 UTC
Status: active

Read the verified explanation →

ended US

November 7, 2026

Peak index: 80
Detected: 02:50 UTC
Status: ended

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ended GB

November 3, 2026

Peak index: 52
Detected: 18:30 UTC
Status: ended

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ended US

October 31, 2026

Peak index: 44
Detected: 11:34 UTC
Status: ended

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ended US

October 28, 2026

Peak index: 48
Detected: 04:10 UTC
Status: ended

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ended GB

October 27, 2026

Peak index: 44
Detected: 06:10 UTC
Status: ended

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ended US

October 26, 2026

Peak index: 44
Detected: 11:30 UTC
Status: ended

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ended CA

October 25, 2026

Peak index: 48
Detected: 19:50 UTC
Status: ended

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ended GB

September 28, 2026

Peak index: 68
Detected: 04:10 UTC
Status: ended

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ended GB

September 27, 2026

Peak index: 64
Detected: 00:50 UTC
Status: ended

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ended CA

September 23, 2026

Peak index: 68
Detected: 13:50 UTC
Status: ended

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ended GB

September 23, 2026

Peak index: 64
Detected: 05:50 UTC
Status: ended

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ended US

September 19, 2026

Peak index: 52
Detected: 03:54 UTC
Status: ended

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ended CA

September 18, 2026

Peak index: 56
Detected: 17:00 UTC
Status: ended

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ended GB

September 18, 2026

Peak index: 48
Detected: 13:30 UTC
Status: ended

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ended US

September 16, 2026

Peak index: 52
Detected: 16:54 UTC
Status: ended

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Verified explanations

igniting Weather 30 minutes ago

Why an Unprecedented November Polar Vortex Collapse Has Meteorologists on Edge

The Arctic polar vortex is undergoing a sudden and unusually early collapse, with stratospheric winds dropping toward zero and reversing weeks ahead of historical schedules. This unexpected disruption conflicts directly with typical Super El Niño expectations, leaving forecasters grappling with high uncertainty regarding how winter weather will actually play out in North America and Europe.

Index 63 CA WITT Editorial Desk