Propagation….

NOAA STI

:Product: Geophysical Alert Message wwv.txt
:Issued: 2022 May 17 0905 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 16 May follow.
Solar flux 162 and estimated planetary A-index 10.
The estimated planetary K-index at 0900 UTC on 17 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: WARK04
Serial Number: 4102
Issue Time: 2022 May 16 0500 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 May 16 0500 UTC
Valid To: 2022 May 16 0900 UTC
Warning Condition: Onset

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.