NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Sunday, April 28, 2024 21:04:14

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

MODERATE Geomagnetic Storm WATCH for 08 Aug UTC-Day

G2 (Moderate geomagnetic storm) watch slide with illustration of aurora.
MODERATE Geomagnetic Storm WATCH for 08 Aug UTC-Day
published: Wednesday, August 09, 2023 02:38 UTC

A geomagnetic storm whatch is in effect.

What is it?

An eruption from the sun on August 5th is likely to come to Earth and cause a moderate (G2) disturbance in Earth’s magnetic field, a geomagnetic storm.

When will it get here?

Tuesday, August 8th after midnight EDT or around 6 a.m. UTC  

NOTE: There is always some uncertainty surrounding the expected arrival times 

Why do I care?

Geomagnetic storms produce aurora.  Monitor it in real-time on the Aurora Watchers Dashboard where you’ll find links to

Tips on viewing the aurora and to an Aurora Tutorial.