NOAA STI
:Product: Geophysical Alert Message wwv.txt
:Issued: 2022 May 18 0905 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
# Geophysical Alert Message
#
Solar-terrestrial indices for 17 May follow.
Solar flux 171 and estimated planetary A-index 12.
The estimated planetary K-index at 0900 UTC on 18 May was 1.
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: 4103
Issue Time: 2022 May 17 1358 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From: 2022 May 17 1358 UTC
Valid To: 2022 May 17 2100 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.
