NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, November 30, 2021 12:36:42

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

(UPDATE) G1 (Minor) and G2 (Moderate) Storm Watches for 3 - 4 November, 2021

(UPDATED) G1 & G2 Watches 3-4 Nov 2021
(UPDATE) G1 (Minor) and G2 (Moderate) Storm Watches for 3 - 4 November, 2021
published: Friday, November 05, 2021 01:56 UTC

**(UPDATE):The G1 (Minor) Geomagnetic Storm Watch for 04 Nov has been upgraded to a G2 (Moderate) Geomagnetic Storm Watch. The G1 (Minor) Geomagnetic Storm Watch for 03 November remains in effect.**

Several CMEs (coronal mass ejections) erupted from the Sun on 01 - 02 Nov and analysis and model consensus indicate likely Earth-directed components to a few of them. CMEs took place from the southwest area of the Sun to include one associated with a C4 flare from NOAA/SWPC Region 2887 at 01/2133 UTC (02/1:33am EDT). This was followed by a full halo CME related to an M1 flare (R1-Minor Radio Blackout) from Region 2891 at 02/0301 UTC (02/7:01am EDT) near center disk. Confidence in a measure of Earth-directed components to these CMEs is moderate; while there is less confidence in timing and intensity. Please continue to visit https://swpc.noaa.gov for the latest information and forecasts.