Auroras (northern lights) in Thunder bay — Aug 12, 2025
Probability of northern lights in Thunder bay
Information as of 2025-08-12 23:52 (end of day) local time in Thunder bay
5 %
Thunder bay
Aurora intensity index
Auroral intensity index and the theoretically possible latitude of observations for nighttime in the Western Hemisphere as of 2025-08-12 23:52 (end of day) local time
Northern lights (auroras) over North America
Changes from 2025-08-12 to 2025-08-13 UTC
Northern lights (auroras) in the northern hemisphere
Changes from 2025-08-12 to 2025-08-13 UTC
Probability of northern lights (auroras) in cities of Canada
Information as of 2025-08-12 23:52 (end of day) local time in Thunder bay
1 %
Ottawa
1 %
Toronto
2 %
Montreal
1 %
Vancouver
3 %
Calgary
9 %
Edmonton
0 %
Hamilton (Canada)
2 %
Quebec
7 %
Winnipeg
1 %
Kitchener
8 %
Saskatoon
5 %
Red deer
20 %
Salluit
27 %
Arviat
24 %
Yellowknife
9 %
Whitehorse
25 %
Thompson
4 %
Prince george
21 %
Rankin Inlet
14 %
Iqaluit
19 %
Inuvik
5 %
Cambridge Bay
Polar auroras over the past 2 days
Changes in the auroral intensity index from 2025-08-11 to 2025-08-12 local time
