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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Monday, March 27, 2017 22:12:09

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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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OVATION-Prime Aurora Forecast Model
Aurora Visibility Map
Monday, March 27, 2017 21:26 UTC

The G2 (Moderate) geomagnetic storm threshold was reached once again on 27 March at 3:48 pm ET (27/1948 UTC).

Monday, March 27, 2017 15:56 UTC

The G2 (Moderate) geomagnetic storm warning has been extended to 27 March at 2100 UTC (5:00 pm ET) and the G1 (Minor) geomagnetic storm warning has

Monday, March 27, 2017 10:55 UTC

G2 (Moderate) geomagnetic storm levels were observed at 10:24 UTC on 27 March 2017 (06:24 AM ET) due to coronal hole high speed stream activity.

Sunday, March 26, 2017 19:08 UTC

SWPC Forecasters have issued a G1 (Minor) geomagnetic storm watch for 27 March and a G2 (Moderate) geomagnetic storm watch for 28 and 29 March due

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