Key Highlights
- Auroras may be visible in 21 US states tonight as a result of two incoming coronal mass ejections (CMEs).
- The first CME is forecast to reach Earth late tonight, closely followed by a second CME that erupted yesterday.
- NOAA has issued a G4 storm watch for Nov. 12 due to the impact from these CMEs.
- Best viewing times are expected between 4 p.m. – 10 p.m. EST (2100-0300 GMT), with strong (G3) storm levels possible during this period.
The Northern Lights Dance: A Spectacular Show in the Sky
Stargazers and aurora chasers are in for a thrilling night as the northern lights, or auroras, may be visible in 21 US states tonight. This phenomenon is set to unfold due to two incoming coronal mass ejections (CMEs) that are expected to spark geomagnetic storm conditions overnight.
Aurora Forecast and Viewing Conditions
The National Oceanic and Atmospheric Administration (NOAA) has issued a G4 storm watch for Nov. 12, indicating the potential intensity of the upcoming space weather event. According to the latest NOAA aurora forecast map, the following states could see auroras tonight:
- Alaska
- North Dakota
- Minnesota
- Montana
- Wisconsin
- Maine
- South Dakota
- Idaho
- Vermont
- Washington
- New Hampshire
- Wyoming
- New York
- Iowa
- Massachusetts
- Pennsylvania
- Nebraska
- Ohio
- Illinois
- Indiana
Viewing conditions are expected to be best between 4 p.m. – 10 p.m. EST (2100-0300 GMT), with minor (G1) to moderate (G2) storm levels possible from 4 p.m. – 10 p.m. and strong (G3) storm levels from 10 p.m. – 1 a.m. EST.
How to See the Northern Lights
To maximize your chances of seeing the northern lights, experts recommend finding a north-facing vantage point with clear views of the horizon free from light pollution. Using your phone camera can help you spot faint auroras before they become visible to the naked eye. Allow at least 30 minutes for your eyes to adapt to the darkness, and prepare for potentially long periods of observation.
Understanding the Space Weather Behind the Lights
The northern lights are a result of solar flares and CMEs interacting with Earth’s magnetic field. Two significant CMEs are expected to hit Earth tonight. The first is forecast to reach Earth late tonight, while the second erupted yesterday.
A third CME from a colossal X5.1 solar flare, which is currently hurtling toward Earth, could also impact on Nov. 12 around 7 a.m. EST (1200 GMT).
NOAA’s Space Weather Prediction Center is closely monitoring these events and has issued alerts to prepare for the potential geomagnetic storm activity.
The Promise of Aurora Chasing
Aurora chasing, or stargazing, is a popular hobby among enthusiasts. Whether you’re an experienced chaser or new to the experience, tonight presents a unique opportunity to witness this natural wonder in 21 states across the United States.
With proper preparation and clear skies, the northern lights may put on a spectacular show for those willing to brave the cold and darkness. While auroras are notoriously unpredictable, following these guidelines can significantly enhance your chances of witnessing one of nature’s most breathtaking displays.
