Homepage | NOAA / NWS Space Weather Prediction Center
Source: http://www.swpc.noaa.gov
Archived: 2026-04-23 14:55
Homepage | NOAA / NWS Space Weather Prediction Center
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https://services.swpc.noaa.gov
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
R
no data
S
no data
G
no data
Current Space Weather Conditions
on
NOAA Scales
R1 (Minor) Radio Blackout Impacts
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
Solar Wind Speed:
km/sec
Solar Wind Magnetic Fields:
Bt
nT, Bz
nT
Noon 10.7cm Radio Flux:
sfu
CCOR-1 Captures Comet C/2026 A1
published:
Tuesday, April 07, 2026 13:31 UTC
Comet C/2026 A1 (MAPS) entered the NOAA CCOR-1 instrument field of view over the weekend. The comet does not appear to have survived its close approach to the Sun and likely disintegrated into dust an...
Aurora Timeline Viewer Product Unavailable Until Further Notice
published:
Friday, April 03, 2026 17:58 UTC
While the Aurora Timeline Viewer Product is unavailable, please refer to the official and operational 3-Day Forecast.
...
Registration Open for 2026 Space Weather Workshop
published:
Wednesday, March 18, 2026 13:32 UTC
The 2026 Space Weather Workshop will be held in person along with a virtual component, April 27th - May 1st, 2026 in Boulder, CO at the Embassy Suites by Hilton Boulder.
...
Eclipse Season for GOES Satellites is Here
published:
Tuesday, March 10, 2026 14:54 UTC
It's that time of year known as eclipse season for NOAA GOES satellites. The Earth will have more visual impacts on imagery, especially for GOES-19 CCOR-1 during this time of year.
...
Serving Essential Space Weather Communities
Aurora
Aviation
Electric Power
Emergency Management
Global Positioning System (GPS)
Radio Communications
Satellites
Space Weather Enthusiasts
The Sun (EUV)
The Aurora
Coronal Mass Ejections
GOES X-Ray Flux
GOES Proton Flux
Planetary K Index
https://services.swpc.noaa.gov
Updated Time:
NOAA Scales Geomagnetic Storms
Kp < 5
Kp = 5 (G1)
Kp = 6 (G2)
Kp = 7 (G3)
Kp = 8, 9- (G4)
Kp = 9o (G5)
Skip to main content
https://services.swpc.noaa.gov
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
R
no data
S
no data
G
no data
Current Space Weather Conditions
on
NOAA Scales
R1 (Minor) Radio Blackout Impacts
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
Solar Wind Speed:
km/sec
Solar Wind Magnetic Fields:
Bt
nT, Bz
nT
Noon 10.7cm Radio Flux:
sfu
CCOR-1 Captures Comet C/2026 A1
published:
Tuesday, April 07, 2026 13:31 UTC
Comet C/2026 A1 (MAPS) entered the NOAA CCOR-1 instrument field of view over the weekend. The comet does not appear to have survived its close approach to the Sun and likely disintegrated into dust an...
Aurora Timeline Viewer Product Unavailable Until Further Notice
published:
Friday, April 03, 2026 17:58 UTC
While the Aurora Timeline Viewer Product is unavailable, please refer to the official and operational 3-Day Forecast.
...
Registration Open for 2026 Space Weather Workshop
published:
Wednesday, March 18, 2026 13:32 UTC
The 2026 Space Weather Workshop will be held in person along with a virtual component, April 27th - May 1st, 2026 in Boulder, CO at the Embassy Suites by Hilton Boulder.
...
Eclipse Season for GOES Satellites is Here
published:
Tuesday, March 10, 2026 14:54 UTC
It's that time of year known as eclipse season for NOAA GOES satellites. The Earth will have more visual impacts on imagery, especially for GOES-19 CCOR-1 during this time of year.
...
Serving Essential Space Weather Communities
Aurora
Aviation
Electric Power
Emergency Management
Global Positioning System (GPS)
Radio Communications
Satellites
Space Weather Enthusiasts
The Sun (EUV)
The Aurora
Coronal Mass Ejections
GOES X-Ray Flux
GOES Proton Flux
Planetary K Index
https://services.swpc.noaa.gov
Updated Time:
NOAA Scales Geomagnetic Storms
Kp < 5
Kp = 5 (G1)
Kp = 6 (G2)
Kp = 7 (G3)
Kp = 8, 9- (G4)
Kp = 9o (G5)