Auroras (northern lights) in Thunder bay — Apr 30, 2025
Probability of northern lights in Thunder bay
Information as of 2025-04-30 23:54 (end of day) local time in Thunder bay
4 %
Thunder bay
Aurora intensity index
Auroral intensity index and the theoretically possible latitude of observations for nighttime in the Western Hemisphere as of 2025-04-30 23:54 (end of day) local time
Northern lights (auroras) over North America
Changes from 2025-04-30 to 2025-05-01 UTC
Northern lights (auroras) in the northern hemisphere
Changes from 2025-04-30 to 2025-05-01 UTC
Probability of northern lights (auroras) in cities of Canada
Information as of 2025-04-30 23:54 (end of day) local time in Thunder bay
1 %
Ottawa
1 %
Toronto
1 %
Montreal
1 %
Vancouver
3 %
Calgary
7 %
Edmonton
0 %
Hamilton (Canada)
2 %
Quebec
6 %
Winnipeg
0 %
Kitchener
7 %
Saskatoon
4 %
Red deer
20 %
Salluit
23 %
Arviat
21 %
Yellowknife
7 %
Whitehorse
22 %
Thompson
3 %
Prince george
17 %
Rankin Inlet
14 %
Iqaluit
17 %
Inuvik
5 %
Cambridge Bay
Polar auroras over the past 2 days
Changes in the auroral intensity index from 2025-04-29 to 2025-04-30 local time
