NOAA SWPC Space-Weather Alerts Explained for Ham Operators

NOAA SWPC Space-Weather Alerts Explained for Ham OperatorsHow to read NOAA SWPC alerts — geomag warnings, flare summaries, CME observations, radiation events. What each category means for HF propagation.NOAA's Space Weather Prediction Center (SWPC) issues real-time alerts when space weather thresholds are crossed.Categories

GEOMAG — K-index warnings, G-storm watches/warnings (Kp >= 5)

FLARE — X-ray flare summaries (M-class and X-class)

CME — Coronal mass ejection alerts

RADIATION — Solar proton events (S-scale)

SWPC — Other product summaries, watches, cancellations

Reading the tickerEach alert shows category tag, headline, time-ago. Click any alert to open the BloomWX Solar tab in a new window — your QTH county is auto-selected.Part of the BloomWX learn library — beginner-friendly explainers covering every surface of the BloomWX weather dashboard. Open BloomWX to see live data for any U.S. county.