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 | |
| 2882 | 01 | Alpha | |
| H-alpha Plages without Spots | |||
| Region | |||
| 2885 | |||
| Regions Due to Return 16 Oct to 18 Oct | |||
| Region | |||
| 2877 | |||
<AUR>.Alert
<AUR>.Alert.Subscriberlast message issued over 78hrs ago
Space Weather Message Code: WARK04
Serial Number: 3946
Issue Time: 2021 Oct 12 2109 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3945
Valid From: 2021 Oct 12 0003 UTC
Now Valid Until: 2021 Oct 13 0600 UTC
Warning Condition: Persistence
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
