[Ips-geo-warning] SWS GEOMAGNETIC WARNING issued 1202 UT on 23 May 2021

[rwc]

SUBJ: SWS GEOMAGNETIC DISTURBANCE WARNING 21/20
ISSUED AT 1201UT/23 MAY 2021
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

There have been two weak M-class flares and several C-class flares 
during the last 36 hours (UT day 22-23 May), all from active 
region 2824. AR 2824 is currently located near the solar central 
meridian. These events have so far generated four CMEs. Our model 
runs indicate these CMEs will impact Earth on UT day 25 May at 
around 11 UT +/- 12 hours. The solar wind speed is expected to 
enhance to moderate to high levels through UT days 25-26 May. 
Geomagnetic activity is expected to be between minor to moderate 
storms (G1-G2). There is also a small chance of strong and severe 
storms (G3-G4). Auroras may be visible on the local night of 
25 May from Tasmania, the coastline of Victoria and Southwest 
Coast of Western Australia. There is a chance aurora may also 
be visible on the local night of 26 May.

INCREASED GEOMAGNETIC ACTIVITY EXPECTED 
DUE TO CORONAL MASS EJECTION
FROM 25-26 MAY 2021
_____________________________________________________________

GEOMAGNETIC ACTIVITY FORECAST
25 May:  Minor-Moderate Storm
26 May:  Active to Minor Storms

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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