Space weather can have significant effects on satellites, power grids, global positioning systems, and commuter air and space travel.
The sun is the main source of space weather. Sudden bursts of plasma and magnetic field structures from the sun’s atmosphere, together with sudden radiation bursts, all cause space weather effects on Earth.
Power outages due to space weather are rare events, but significant power outages could occur.
TERMS USED FOR SPACE WEATHER
Space weather prediction in the United States is provided by NOAA’s Space Weather Prediction Center and the U.S. Air Force’s 557 Weather Wing. The space weather scales are similar to the Enhanced Fujita Tornado Scale and correlates space weather events with their likely effects on technology.
SPACE WEATHER WATCH
A watch is issued when the risk of a potentially hazardous space weather event has increased significantly, but its occurrence or timing is still uncertain. A Watch is to give enough notification of possible space weather activity with a lead-time of hours todays
SPACE WEATHER WARNING
A warning is issued when a significant space weather event is occurring, imminent, or likely. The purpose of a Warning is notification of impending space weather activity, with a lead-time of minutes to a few hours.
SPACE WEATHER ALERT
Alerts indicate that the observed conditions, highlighted by warnings, have crossed a preset threshold or that a space weather event has already started.