Propagation….

NOAA STI

:Product: Geophysical Alert Message wwv.txt
:Issued: 2022 May 15 0905 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 14 May follow.
Solar flux 153 and estimated planetary A-index 7.
The estimated planetary K-index at 0900 UTC on 15 May was 3.

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: 2295
Issue Time: 2022 May 15 0253 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2022 May 15 0247 UTC
Synoptic Period: 0000-0300 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.