NOAA Logo

NWS Logo

Organizations

Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, August 21, 2017 16:11:03

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

Auroral Activity - WMO Product Portal

Aurora - 30 Minute Forecast
Thumbnail of Ovation Auroral Map
Product Description:
The OVATION Aurora Forecast Model shows the intensity and location of the aurora predicted for the time
shown at the top of the map. This probability forecast is based on current solar wind conditions measured
at L1, but using a fixed 30-minute delay time between L1 and Earth. A 30-minute delay corresponds to
approximately 800 km/s solar wind speed as might be encountered during geomagnetic storming conditions.
In reality, delay times vary from less than 30 minutes to an hour or so for average solar wind conditions.


Target Users: Aurora Watchers
Map of the Aurora
Cadence: 5 Minutes
Data Source: L1 Solar Wind