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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Tuesday, February 21, 2017 12:03:31

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NOAA Scales

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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
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R
no data
S
no data
G
no data
Current Space Weather Conditions
R1 (Minor) Radio Blackout Impacts
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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

Space Weather Summary

  • Solar Wind Speed: km/sec
  • Solar Wind Magnetic Fields: Bt nT, Bz nT
  • Noon 10.7cm Radio Flux: sfu

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G1 Storm Watch for 23 February
Brief Outages 21-22 February
GOES-R Re-designated GOES-16
Winter Weather Safety
Monday, February 20, 2017 21:01 UTC

A G1 (Minor) geomagnetic storm watch is in effect for 23 February, 2017 due to likely effects from an isolated, positive polarity coronal hole high

Wednesday, February 15, 2017 17:41 UTC

On Tuesday, February 21, 2017, SWPC will transfer its operations to its off-site backup system to support building maintenance.  Users will see int

Thursday, December 01, 2016 21:47 UTC

On November 29, 2016, the newest GOES satellite was successfully placed into geostationary orbit (approximately 22,000 miles away from Earth) and h

Thursday, December 01, 2016 05:18 UTC

Winter can bring with it a wide variety of potentially dangerous weather that can impact roadways, outdoor activities, infrastructure, and more. Be

Serving Essential Space Weather Communities

The Sun's X-Rays

Solar X-Ray Imager Image

Coronal Mass Ejections

LASCO C3 Coronagraph Image

The Aurora

Aurora ovation plot

GOES X-Ray Flux

GOES X-Ray flux plot

GOES Proton Flux

GOES Proton Flux plot

Estimated Planetary K-Index

Planetary K Index plot