official data (NOAA SWPC alerts and NOAA scales)
SWPC keeps a K4 geomagnetic warning running for a second day; no storm in progress
SPACE WEATHER // NOAA SCALES
G0now
K4 warning ran to 8 AM ET Oct 14; R0 and S0 at 12:48 UTC (NOAA SWPC)
The magnetic field has been restless, not stormy. NOAA kept a K4 warning running through 8 AM ET Wednesday.
Key facts
- Warning
- K4, extended to 1200 UTC (8 AM ET) Oct 14, persistence
- Now (12:48 UTC Oct 14)
- R0, S0, G0
- Today odds
- R1 to R2: 10%; R3+: 1%; S1+: 5%
Note
NOAA SWPC issued a Geomagnetic K-index of 4 warning at 0115 UTC October 13 and extended it twice, most recently at 2058 UTC, to 1200 UTC (8 AM ET) October 14, citing persistence. SWPC lists possible weak power grid fluctuations and aurora at high latitudes such as Canada and Alaska.
As of 12:48 UTC October 14, NOAA's scales show no radio blackout, radiation storm or geomagnetic storm activity, with 10% odds of minor and 1% odds of major radio blackouts and 5% odds of a solar radiation storm today.
Quiet with a hum. ECDO readers: this is ordinary solar weather.
Why it matters
K4 is below storm level. Aurora may reach Canada and Alaska; grids see only weak fluctuations, SWPC says.
Sources
- NOAA SWPC: alerts and warnings
- Hero data: NOAA SWPC
Primary + secondary attribution as listed.
More: Space weather
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