[Ips-wsgr] ASWFC Weekly Solar and Geophysical Report (14 April 23) issued 0201 UT on 14 Apr 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 14 APRIL 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (07 APRIL - 13 APRIL)
Date     07    08    09    10    11    12    13
10cm    136   136   140   140   143   154   160
AFr       7     5     5    11     6     4  (  5)
Aaus      4     2     2     8     5     2  (  4)
T       122   125   122   132   119   114   122

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

07 Apr 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 30% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 30% during local night.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 35% during local night.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 20% during local night and after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

08 Apr 
Solar:        R1, with an M2.9 at 0146UT
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      Enhanced by 30% during local day.
      Enhanced by 45% during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Enhanced by 25% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 20-25% during local night and after local dawn.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 20-25% during local night and after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

09 Apr 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      Enhanced by 45% during local day.
      Enhanced by 65% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 15-30% during local night and after local dawn.
   Southern Australian Region:
      Enhanced by 25% during local day.
      Enhanced by 15-20% during local night and after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

10 Apr 
Solar:        R1, with an M2.7 at 0521UT
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      Enhanced by 20-35%. 
   Niue Island Region:
      Enhanced by 25% during local day.
      Enhanced by 40% during local night.
   Northern Australian Region:
      Enhanced by 15-35%.
   Southern Australian Region:
      Enhanced by 20-25%.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

11 Apr 
Solar:        R1, with an M1.3 at 1016UT
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      Enhanced by 40-80% during local day.
   Niue Island Region:
      Enhanced by 15% 
   Northern Australian Region:
      Enhanced by 15-60% 
   Southern Australian Region:
      Enhanced by 15-25% 
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

12 Apr 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 55% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 25% during local night.
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

13 Apr 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      Enhanced by 35% during local day.
      Enhanced by 85% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 45% during local night.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 20-25% during local night and after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

 
2. FORECAST (14 APRIL - 20 APRIL)
Solar: 
Solar activity is expected to be at R0-R1 levels, with a chance of
isolated R2 events. 

Geomagnetic:  
G0 geomagnetic conditions are expected throughout the week. 

Frequencies:  
MUFs are expected to be near predicted monthly values to 25% enhanced.
Shortwave fadeouts are possible. 

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

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au