NOAA STI
:Product: Geophysical Alert Message wwv.txt
:Issued: 2022 May 22 0905 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 21 May follow.
Solar flux 167 and estimated planetary A-index 10.
The estimated planetary K-index at 0900 UTC on 22 May was 3.
No space weather storms were observed for the past 24 hours.
No space weather storms are predicted for the next 24 hours.
NOAA Alerts
Space Weather Message Code: WARK04
Serial Number: 4106
Issue Time: 2022 May 22 0840 UTC
EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4105
Valid From: 2022 May 22 0120 UTC
Now Valid Until: 2022 May 22 1500 UTC
Warning Condition: Persistence
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.
