NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Wednesday, November 30, 2022 01:28:21

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

G3 (Strong) Geomagnetic Storm Watch now in effect for 31 March, 2022

G3 Watch for 31 March, 2022
G3 (Strong) Geomagnetic Storm Watch now in effect for 31 March, 2022
published: Friday, April 01, 2022 14:44 UTC

A G3 (Strong) geomagnetic storm watch is now in effect for 31 March, 2022. A second, faster Coronal Mass Ejection (CME) erupted later on 28 March associated with an M1 flare at 3:23 pm EDT (1923 UTC). Analyses indicated the CME speed as approximately 841 km/s, and model guidance suggests this CME will overtake the day’s earlier CME and arrive during the early evening of 30 March into early morning of 31 March (EDT). Forecast confidence of an Earth-directed component is good, with moderate confidence of timing and intensity. Additionally, a G1 (Minor) watch is in effect for 30 March, 2022, for likely effects of initial CME shock arrival and a G2 (Moderate) watch is in effect for 1 April, 2022, in anticipation of continuing, but weakening, CME influences. When the CME approaches Earth, NOAA’s DSCOVR satellite will detect the real-time solar wind changes and SWPC forecasters will issue any appropriate warnings. Impacts to technology from a G3 storm generally remain small, but it can drive the aurora further equatorward of its polar home. Aurora may be visible over the northern tier states if the conditions are favorable. For additional information, visit our phenomena pages at space weathergeomagnetic stormsCMEs, and aurora and viewing tips. NOAA's Space Weather Prediction Center is the official source for space weather forecasts, watches, warnings and alerts. Visit www.spaceweather.gov for updates. Learn about Solar Cycle 25.