Auroras (northern lights) in Thunder bay
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Probability of northern lights in Thunder bay
Forecast for 2026-01-20 21:20 local time in Thunder bay
35 %
Thunder bay
Aurora intensity index
Auroral intensity index and theoretically possible latitude of observations for nighttime in the Western Hemisphere
Northern lights (auroras) over North America
Forecast for 2026-01-20 21:20 local time in Thunder bay
[ Click on the image to see changes over the past 24 hours ]
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Northern lights (auroras) in the northern hemisphere
Forecast for 2026-01-20 21:20 local time in Thunder bay
[ Click on the image to see changes over the past 24 hours ]
| API: JSON | TXT | HTML | high resolution |
Probability of northern lights (auroras) in cities of Canada
Forecast for 2026-01-20 21:20 local time in Thunder bay
9 %
Ottawa
7 %
Toronto
12 %
Montreal
4 %
Vancouver
22 %
Calgary
52 %
Edmonton
4 %
Hamilton (Canada)
16 %
Quebec
48 %
Winnipeg
5 %
Kitchener
48 %
Saskatoon
34 %
Red deer
100 %
Salluit
100 %
Arviat
100 %
Yellowknife
40 %
Whitehorse
100 %
Thompson
27 %
Prince george
100 %
Rankin Inlet
100 %
Iqaluit
50 %
Inuvik
13 %
Cambridge Bay
Polar auroras over the past 2 days
Changes and hourly forecast of the auroral intensity index from 2026-01-19 to 2026-01-20
