NOAA STI
:Product: Geophysical Alert Message wwv.txt
:Issued: 2022 Apr 26 0310 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 25 April follow.
Solar flux 157 and estimated planetary A-index 5.
The estimated planetary K-index at 0300 UTC on 26 April was 0.
Space weather for the past 24 hours has been minor.
Radio blackouts reaching the R1 level occurred.
No space weather storms are predicted for the next 24 hours.
NOAA Alerts
Space Weather Message Code: ALTK04
Serial Number: 2291
Issue Time: 2022 Apr 24 0003 UTC
ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 Apr 23 2359 UTC
Synoptic Period: 2100-0000 UTC
Active Warning: Yes
NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation
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.
CHANCE OF FLARES TODAY: The sun has quieted following some minor decay in sunspot complex AR2993-94. Nevertheless, there is still a chance of flares: a 40% chance of M-flares and a 10% chance of X-flares on April 26th, according to NOAA.