Saturday, August 25, 2012

August 25th, Aurorae at High Latitudes!

The above image, taken August 25th at 02:13 UTC, shows the auroral ovals for Earth's northern hemisphere (left) and southern hemisphere (right). The image is extrapolated from measurements taken during the most recent polar pass of the NOAA POES satellite. Image Credit: NOAA Space Weather Prediction Center

For the end of August 23rd and most of the 24th, the solar activity was very low. Some coronal mass ejections (CMEs) were seen, but none that are expected to affect Earth. Keeping track of things, a new active region was designated, AR 1554. Forecast through the 27th: the solar activity is expected to be very low with a chance of C-class flares.

Earth's geophysical activity has ranged from quiet to unsettled, with storms ranging from active to minor at high latitudes. Forecast through the 27th: the geomagnetic activity is expected to range from quiet to unsettled with isolated periods of active storms. There is a chance for storms at high latitudes ranging from minor to major, due to a recurring high-speed stream from the coronal hole. Stay tuned...

To monitor solar flare activity minute by minute, visit the "Today's Space Weather" page of NOAA's Space Weather Prediction Center (

To learn more about the sun and to stay current on solar activity, visit the mission home pages of the Solar Dynamics Observatory (SDO) (, the Solar and Heliospheric Observatory (SOHO) (, the Advanced Composition Explorer (ACE) (, and the Solar Terrestrial Relations Observatory (STEREO) (


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