One of two general types of solar flares. Impulsive flares accelerate mostly electrons, with some protons. They last for minutes or hours, and most occur near the solar equator. They happen at a rate of about 1000 per year during solar maximum.
<AUR>.Sunspots
| Regions with Sunspots | |||
| Region | # of Spots | Mag Type | |
| 2718 | 02 | Beta | |
| H-alpha Plages without Spots | |||
| Region | |||
| None | |||
| Regions Due to Return 17 Aug to 19 Aug | |||
| Region | |||
| None | |||
<AUR>.Alert
<AUR>.Alert.Subscriberlast message issued over 14hrs ago
Space Weather Message Code: ALTK04
Serial Number: 2068
Issue Time: 2018 Aug 17 0413 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Aug 17 0412 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.
Forecast Discussion
Weekly Highlights and Forecasts
Solar Weather Overview
Latest Space Weather Storm
<AUR>.DX-Cluster Statistics
Knowledge Database
Source: http://www.noaa.gov
