Aurora Borealis in Union Hill-Novelty Hill
United States · 47.68°, -122.03° · geomagnetic 53.2° · needs Kp 7
Tonight's aurora forecast for Union Hill-Novelty Hill
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. Union Hill-Novelty Hill needs Kp 7 to see anything at all, and tonight the forecast peaks at Kp 4.7. Short of the threshold, which is what most nights look like here.
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Updated 2026-09-08 10:36 UTC
Local aurora guide for Union Hill-Novelty Hill
Auroras are typically visible when the planetary geomagnetic activity reaches Kp 7 or higher. Union Hill-Novelty Hill is located at 53.2° geomagnetic latitude, which is favorable for aurora viewing.
On average, there are about 3.2 nights per year when conditions are suitable for aurora viewing in this region. Patience and persistence are key for observing this phenomenon.
The best months for aurora viewing in Union Hill-Novelty Hill are May, September, and August. These months often provide a good balance of darkness and clear skies.
Union Hill-Novelty Hill experiences a Bortle 6 sky, indicating moderate light pollution. For darker skies, areas like King County, approximately 22 km east-north-east, offer Bortle 4 conditions.
The horizon to the north-north-west is marked by the ridge at Redmond Watershed, 3.6 km away. To the west-north-west, Farrel McWhirter Park, a park, is situated 4.3 km away.
Further east, Sikes Lake, a lake, is located 5.3 km away. Novelty Hill, a mountain, lies 5.5 km to the east-north-east, and Duvall Park, another park, is 5.6 km to the north-north-east.
The terrain around Union Hill-Novelty Hill includes notable features such as the ridge at Redmond Watershed to the north-north-west and Farrel McWhirter Park to the west-north-west.
Sikes Lake is situated to the east, while Novelty Hill, a mountain, is located to the east-north-east. Duvall Park is also nearby to the north-north-east.
Historical data from 2016 shows 60 verified aurora reports within a 300 km radius of Union Hill-Novelty Hill. The period of record for aurora viability in this region spans from April 2, 2016, to March 30, 2026.
Notable qualifying nights with high geomagnetic activity (Kp 7.0 and above) include March 20, 2026 (Kp 7.0), January 20, 2026 (Kp 7.67), and January 19, 2026 (Kp 8.67).
Additional qualifying nights occurred on November 12, 2025 (Kp 7.33) and November 11, 2025 (Kp 8.67).
Sources: Revon analysis of NOAA planetary Kp · Revon location dataset · Falchi 2016 World Atlas of artificial night sky brightness · GeoNames (CC BY 4.0) · Aurorasaurus verified positive reports
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