Environment ❯ Natural Phenomena

Auroras

Northern Lights Solar Activity Geomagnetic Storms Geomagnetic Activity Aurora Borealis Viewing Conditions Polar Lights Visibility Conditions Solar Wind Geomagnetic Effects Coronal Mass Ejections Light Pollution Impact of Solar Activity Visibility Factors Solar Influence Solar Effects Solar Flares Solar Eruptions Atmospheric Effects Atmospheric Gases Auroras Borealis Solar Events Charged Particles Causes of Auroras Atmospheric Interactions Electromagnetic Interactions Impact on Technology Color Variations Seasonal Effects Geophysical Events Magnetosphere Effects on Weather Light Displays Effects of Solar Activity Aurora Australis Auroral Ovals Effects on Wildlife Auroras Boreales Effects on Technology Observation Conditions Effects of Solar Winds Solar Cycles Auroras Australes Electromagnetic Effects Impact on Earth Auroral Activity Solar Cycle Viewing Tips Polar Auroras Electromagnetic Events Light Emission Ions Impact on Atmosphere Solar Activity Effects Impact of Solar Flares Northern Lights Visibility Solar Winds Solar Maximum Visibility Predictions Impact on Sky Cosmic Rays Weather Conditions Geographic Distribution Solar Storms

Northern Lights Reach Into Mid-U.S. As G2 Storm Peaks

A coronal hole’s fast solar wind triggered a G2 storm that pushed auroras unusually far south.

Medieval Records and Tree Rings Pinpoint a 1200–1201 Solar Proton Event

Late CME Arrival Lowers Aurora Forecast to G1–G2 Tonight

NOAA Issues Geomagnetic Storm Watch as Aurora Chances Rise Near U.S.–Canada Border

Northern Lights Possible Over Northern UK Tonight as Geomagnetic Activity Persists

NOAA Issues G2 Geomagnetic Storm Watch as March 16 CME Arrives, Expanding Aurora Potential

NOAA Issues Geomagnetic Storm Watch as Auroras Likely Reach 11 U.S. States

Severe Solar Storm Triggers Widespread Auroras as NOAA Confirms G4 Conditions

NOAA Warns of Strong Geomagnetic Storm Tonight as Auroras May Reach Unusually Far South

Geomagnetic Storms To Expand Aurora Visibility Across Northern U.S. This Weekend

NOAA Forecasts New Year’s Eve G1 Geomagnetic Storm, Boosting Aurora Odds Across Northern U.S. and U.K.

Aurora Outlook Tightens for Dec. 23 After Minor Storm, With Northern U.S. Still in Play

Northern Lights Possible Across Northern U.S. This Weekend, With Best Odds Friday Night

NOAA: Northern Lights Possible in 10 States on Thanksgiving Night

Severe Solar Storm Ignites Auroras as Forecasters Track Third, Stronger CME

NOAA Issues Strong Geomagnetic Storm Watches as CMEs Near Earth, Raising Aurora Odds

Strong Geomagnetic Storm Triggers Widespread Aurora With More Possible Tonight

NOAA Forecasts Kp 4 Tonight, Putting Northern Lights Within Reach of Northern U.S. States

Aurora Watch: Minor Geomagnetic Storms Could Bring Northern Lights Tonight

Northern Lights Possible Across Northern U.S. Tonight as NOAA Issues G1–G2 Storm Watch