Potential Amped Up Auroras This Week in our Skies

aurora

 

As it stands now, the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center is forecasting a possible G1 (minor) geomagnetic storm for Oct 13 and 14.

 

A geomagnetic storm is a major disturbance of Earth’s magnetosphere that occurs when there is a very efficient exchange of energy from the solar wind into the space environment surrounding Earth. These storms result from variations in the solar wind that produces major changes in the currents, plasmas, and fields in Earth’s magnetosphere. The solar wind conditions that are effective for creating geomagnetic storms are sustained (for several to many hours) periods of high-speed solar wind, and most importantly, a southward directed solar wind magnetic field (opposite the direction of Earth’s field) at the dayside of the magnetosphere. This condition is effective for transferring energy from the solar wind into Earth’s magnetosphere.

 

The largest storms that result from these conditions are associated with solar coronal mass ejections (CMEs) where a billion tons or so of plasma from the sun, with its embedded magnetic field, arrives at Earth.

 

This string of space weather occurrences this week may lead to some beautiful aurora displays.

 

g1_watch-13-14oct16

 

Source: http://www.swpc.noaa.gov/phenomena/geomagnetic-storms

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3 Day Forcast

partlycloudySaturday
Sun and clouds mixed. A stray shower or thunderstorm is possible. High around 20C. Winds NW at 10 to 15 km/h.
POP:20
chancetstormsSunday
Variable clouds with scattered thunderstorms. High 17C. Winds W at 10 to 15 km/h. Chance of rain 60%.
POP:60

chancerainSunday
Partly cloudy in the morning. Increasing clouds with periods of showers later in the day. High 17C. Winds light and variable. Chance of rain 60%.
POP:60