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Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Thursday, March 21, 2019 16:39:07

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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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G2 Watch 23 March, 2019
C4 Flare 20 March
NWS Spring Safety Campaign
Clinton Wallace is sworn in as new Space Weather Prediction Center Director
Wednesday, March 20, 2019 22:03 UTC

A G2 (Moderate) geomagnetic storm watch is in effect for the 23 March, 2019 UTC-day due to anticipated CME arrival.

Wednesday, March 20, 2019 14:35 UTC

A C4 flare occurred today, 20 March at 1118 UTC (0718 EDT). The flare erupted from a recently emerged sunspot group (Region 2736).

Thursday, March 07, 2019 20:06 UTC

Get ready for spring weather hazards by visiting our Spring Safety website at https://www.weath

Monday, March 04, 2019 20:39 UTC

Clinton Wallace became the new SWPC Director today.

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