Moscow, ID Severe Weather Alertstar_ratehome

...EXTREME GEOMAGNETIC CONDITIONS OBSERVED AND SEVERE GEOMAGNETIC
STORMS EXPECTED TO CONTINUE THROUGH THE WEEKEND...

The NOAA Space Weather Prediction Center has observed extreme (G5)
geomagnetic conditions early Saturday morning and expects severe
(G4) conditions to continue through the weekend.

* A Geomagnetic Storm of this strength can cause multiple and
widespread issues with various power and communication systems.

* Widespread voltage control problems may occur; some power grid
systems may experience component failures, disruption of service
and protective device trips. This could result in blackouts.

* Pipeline currents can reach hundreds of amps.

* GPS and other satellite navigation may be degraded or
unavailable for days.

* High Frequency (HF) radio propagation may be impossible in many
areas for one or two days.

* Low-frequency radio navigation can be out for hours.

* Aurora may be visible at much lower latitudes.

For Space Weather Information visit...www.swpc.noaa.gov
For Weather Information visit...www.weather.gov