[Ips-wsgr] SWS Weekly Solar and Geophysical Report (14 May 21) issued 0155 UT on 14 May 2021

[rwc]

SUBJ: SWS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 14 MAY 2021, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (07 MAY - 13 MAY)
Date     07    08    09    10    11    12    13
10cm     75    76    76    77    76    75    75
AFr       3     4     6     8     4    25  (  7)
Aaus      0     1     1     5     0    25  (  5)
T         2     3     1     8    14    10    27

Solar:        Solar flare activity
Geomagnetic:  Geomagnetic activity observed for Australian region.
Frequencies:  Australian ionospheric F2 critical frequencies

07 May 
Solar:        Moderate, with an M3.9 at 1904UT
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Depressed by 25% during local day.
      Depressed by 25% during local night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 20% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

08 May 
Solar:        Low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      No data available .
   Niue Island Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

09 May 
Solar:        Low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 15% during local night.
   Southern Australian Region:
      Depressed by 20% during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

10 May 
Solar:        Very low
Geomagnetic:  Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Enhanced by 30% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

11 May 
Solar:        Very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Mostly near predicted monthly values.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

12 May 
Solar:        Low
Geomagnetic:  Quiet to Major Storm
In the SWS magnetometer data for 12 May, a weak (25nT) impulse 
was observed at 0638UT and a weak (14nT) impulse was observed 
at 0949UT.
Frequencies:  
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Enhanced by 30% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 30% over the UT day.

13 May 
Solar:        Very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 30% over the UT day.

 
2. FORECAST (14 MAY - 20 MAY)
Solar: Low

Geomagnetic:  
Possibly unsettled to active on 16-17 May if 13 May CME arrives. 
Mostly quiet with possible unsettled periods on other days.

Frequencies:  
MUFs near predicted monthly values.

For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

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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