NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, April 20, 2026 22:18:46

Main menu

NOAA Scales mini

minimize icon
Space Weather Conditions
on NOAA Scales
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
on NOAA Scales
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

News Archive

Previous SWPC news items.

DAP - temp Head Section

News Archive

Originally Postedsort ascending
G2 Storm Alert explanation with current Ovation model G2 - Moderate geomagnetic storm levels reached Sunday, April 19, 2026 - 09:43
G2 (Moderate) geomagnetic storm watches for 17-18 April. Thursday, April 16, 2026 - 02:25
CCOR-1 Captures Comet C/2026 A1 CCOR-1 Captures Comet C/2026 A1 Tuesday, April 7, 2026 - 13:31
Aurora Timeline Viewer Product Unavailable Until Further Notice Aurora Timeline Viewer Product Unavailable Until Further Notice Friday, April 3, 2026 - 16:23
SDO/AIA 193 image and Event, Expectation, and Effects explanations G2 (Moderate) geomagnetic storm watch Thursday, April 2, 2026 - 20:00

Pages