Tag: SWPC

via the ARRL: Moderate (G2) Geomagnetic Storm Watch Issued for August 4

NOAA’s Space Weather Prediction Center (SWPC) has issued a G2 (moderate) geomagnetic storm watch for August 4, and a G1 (minor) watch for August 5. “A coronal hole high-speed stream, originating from a recurrent, positive polarity coronal hole…is likely to cause geomagnetic storming at the G2 level on 4 August 2017, and at the G1 […]

Solar Flare Activity Goes High Order

Following months of quiet and negligible solar flares, new sunspot 2644 unleashed a series of M-class explosions on April 1 and 2. Each blast produced a shortwave radio blackout over different parts of the planet. The powerful explosions also sent beams of radio energy toward Earth. The Space Weather Prediction Center (SWPC) reports that moderate […]

Moderate (G2) Geomagnetic Storm In Progress, G2 Warning Extended

NOAA’s Space Weather Prediction Center (SWPC) reports a moderate (G2) level geomagnetic storm is in progress. The G2 threshold was reached on March 27 at 1948 UTC. SWPC forecasters have extended the G2 Geomagnetic Storm Warning until March 28 at 0300 UTC, as coronal hole high-speed stream effects continue to influence Earth. A large, Earth-facing […]

This Week in Amateur Radio © 2017 Community Video Associates, Inc.