FORECAST SOL: Normal green MAG: Normal green ION: Moderate yellow
SDO solar image - 335 angstroms - Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams.
radio propagation
Today's Space Weather
Wednesday 14 November
last updated 13/2309 UT
Solar activity was Very Low today (UT day 13 November). Solar activity is expected to be Very Low for the next three UT days (14 to 16 November). Mostly quiet geomagnetic conditions were observed in the Australia/Antarctic regions with some unsettled periods in the Antarctic region today. Quiet global geomagnetic conditions may be expected for the next three UT days. MUFs were near predicted monthly values to depressed by 30% today. Minor to moderate MUF depressions may continue to be observed for the next three UT days.
What is Space Weather ?

Impacts on Critical Infrastructure.

Space weather refers to changes in the space environment, particularly the region between the Earth and Sun. The "solar wind" from the Sun stream past the Earth and is mostly deflected by the Earth's magnetic field, but variations in the solar wind cause changes in the Earth's magnetic field.

solar prominence

Occasionally, a huge release of magnetic energy, called a solar flare, occurs on the Sun. Flares can produce large quantities of x-rays which affect the Earth's atmosphere. They can also accelerate atomic particles (mostly protons) to very high speeds (a substantial fraction of the speed of light!). These high energy particles are dangerous to man and can reach the stratosphere where jetliners fly.

Most aspects of space weather affect us to some extent. The more our society becomes dependent on technology and the more we utilise space, the more we are affected by space weather. Some aspects of space weather are benevolent, and allow activities not otherwise possible such as long range radio communications. Some aspects are benign but fascinating such as the Aurora, and some are malevolent. Like terrestrial weather, it sometimes depends on the situation and the event.

The image below is an artists impression of the solar wind interacting with the Earth's magnetic field.

Solar wind
Type II solar radio spectrograph event 17 Dec 2014
What's Inside