NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, September 25, 2017 09:57:38

Main menu

NOAA Scales mini

minimize icon
Space Weather Conditions
24-Hour Observed Maximums
R
no data
S
no data
G
no data
Latest Observed
R
no data
S
no data
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
R1-R2 --
R3-R5 --
S1 or greater --
G
no data
maximize icon
R
no data
S
no data
G
no data
Current Space Weather Conditions
R1 (Minor) Radio Blackout Impacts
close
HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact.
Navigation: Low-frequency navigation signals degraded for brief intervals.
More about the NOAA Space Weather Scales

X8.2 (R3-Strong) X-Ray Event Observed at 10/1606 UTC.

R3 text
X8.2 (R3-Strong) X-Ray Event Observed at 10/1606 UTC.
published: Wednesday, September 13, 2017 21:15 UTC

An X8.2 X-Ray flare (R3-Strong radio blackout) occurred on 10 September at 1606 UTC (12:06 ET). The source region was Region 2673, now located just around the visible disk. This R3 event produced a rapid increase in relativistic proton levels which are currently above the S3 (Strong) threshold. There was also an associated CME from this event. While a fast event, the CME was off the Sun-Earth line and is not expected to produce notable geoeffective impacts. Keep checking our SWPC webpage for the latest information and updates.