[ips-sf] SWS Summary Forecast for 07 September - issued 0040UT/07-Sep-2017 [SEC=UNCLASSIFIED]

rwc rwc at ips.gov.au
Thu Sep 7 10:40:31 EST 2017

Solar activity reached Very High levels during the last 24 hours with
multiple M-class flares and two X-Class flares, an X2.2 and X9.3
peaking at 0910UT and 1202UTrespectively with associated Type II and
IV radio sweeps and CMEs. Region 2673 continued increasing in area and
magnetic complexity. It is a Beta-Gamma-Delta magnetic class, and
maintains high flare potential, with High to Very High solar activity
expected over the next three days. Region 2673 is in a geoeffective
position and any CME will likely have an earth directed component. As
predicted the 4 September CME arrived at 23:08UT, when the solar wind
speed jumped to over 550km/s, along with a solar wind shock. Expect
Strong to very strong solar wind over the next 24 hours. Geomagnetic
activity should increase over the early part of the UT day (07 Sep).
Short-wave radio fadeouts likely. High-frequency radio communications
fair to normal. Reasonable chance for aurora sightings from southern
Australian regions tonight, 7th of September (AEST).

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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