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UPDATE: JUNE 22

Radiation Storm: Low energy proton levels continue to gradually climb higher and is approaching the moderate (S2) radiation storm threshold. This could have somewhat of an impact on HF radio propagation through the polar regions. Further enhancement will be possible as an expected CME shock front approaches our planet. http://www.solarham.net/

S2 (Moderate) Solar Radiation Storm Impacts

Biological: Passengers and crew in high-flying aircraft at high latitudes may be exposed to elevated radiation risk.

Satellite operations: Infrequent single-event upsets possible.

Other systems: Small effects on HF propagation through the polar regions and navigation at polar cap locations possibly affected. http://www.swpc.noaa.gov/

http://www.swpc.noaa.gov/noaa-scales-explanation



STRIKE 3! A THIRD CME RAISES WATCH TO G3 LEVEL FOR 22 JUNE

A third, much faster coronal mass ejection (CME) is expected to catch up with the two observed on 18 and 19 June bringing them all to Earth in close succession by the UTC day of 22 June 2015.

The CME was associated with an R1-Minor flare event observed at 0142 UTC (9:21 pm ET) from Sunspot Region 12371 located near center disk.

A G3-Strong Geomagnetic Storm Watch has been issued for 22 June as well as a G2-Moderate Watch for 23 June as the CMEs make their way past Earth.

These Watches supersede all prior forecasts.

Stay tuned!!!

http://www.swpc.noaa.gov/news/strike-3-third-cme-raises-watch-g3-level-22-june

G3 (Strong) Geomagnetic Storm Impacts

Power systems: Voltage corrections may be required, false alarms triggered on some protection devices.

Spacecraft operations: Surface charging may occur on satellite components, drag may increase on low-Earth-orbit satellites, and corrections may be needed for orientation problems.

Other systems: Intermittent satellite navigation and low-frequency radio navigation problems may occur, HF radio may be intermittent, and aurora has been seen as low as Illinois and Oregon (typically 50° geomagnetic lat.).

http://www.solarham.net/



http://spaceweather.com/

Video Update: June 23, 2015 - ANOTHER STORM FORECAST FOR WEDNESDAY NIGHT/THURSDAY

Solar Storm Update: Severe Geomagnetic Storming / Aurora Warning – June 23, 2015

GEOMAGNETIC STORMING REACHES G4 (SEVERE) LEVELS

On Tuesday Morning

The geomagnetic storm that began on 22 June has reached G4 (Severe) levels once again as of 0513 UTC (0113 EDT) on 23 June.

Solar wind conditions remain highly favorable for continued Strong Geomagnetic storming, with both fast solar wind and strong magnetic fields. Solar Wind Speed: 664 km/sec

Aurora watchers in North America, especially northern tier states of the US, should stay alert.

http://www.swpc.noaa.gov/news/geomagnetic-storming-reaches-g4-severe-levels

ANOTHER STORM FORECAST FOR WEDNESDAY NIGHT/THURSDAY

The coronal mass ejection that erupted June 22 in conjunction with the R2 solar flare has been modeled and arrival is expected June 24 at 2300 UT (7 pm EDT). This timing bodes well for aurora watchers in North America. As for the expected intensity, SWPC is continuing to analyze the event and will update the forecast when this analysis is complete. http://www.swpc.noaa.gov/news/another-storm-forecast-wednesday-nightthursday http://www.swpc.noaa.gov/news/another-storm-forecast-wednesday-nightthursday