[Ips-whfpr] SWS Weekly Prop. Report (18 May 22) issued 0054 UT on 18 May 2022 [SEC=OFFICIAL]

[rwc]

SUBJ: SWS WEEKLY HF PROPAGATION REPORT
ISSUED ON 18 MAY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (11 MAY - 17 MAY)
Date   T index   Conditions        
11 May   73      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
      Enhanced by 20% after local dawn.
   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.
      Near predicted monthly values during local night.
      Enhanced by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

12 May   80      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

13 May   75      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
      Enhanced by 40% after local dawn.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
      Enhanced by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 30% over the UT day.

14 May   81      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 30% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
      Enhanced by 30% after local dawn.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

15 May   94      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 40% during local day.
      Enhanced by 25% during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Enhanced by 45% during local night.
      Enhanced by 25% after local dawn.
   Northern Australian Region:
      Enhanced by 30% during local day.
      Enhanced by 50% during local night.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 25% during local night.
      Enhanced by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

16 May   84      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
      Enhanced by 20% after local dawn.
   Niue Island Region:
      Enhanced by 35% during local day.
      Near predicted monthly values during local night.
      Enhanced by 35% after local dawn.
   Northern Australian Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
      Enhanced by 30% after local dawn.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
      Enhanced by 35% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 30% over the UT day.

17 May   92      Normal            
MUFS:
   Cocos Island Region:
      Enhanced by 45% during local day.
      Near predicted monthly values during local night.
      Enhanced by 25% after local dawn.
   Niue Island Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
      Enhanced by 70% after local dawn.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 35% during local night.
      Enhanced by 30% after local dawn.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 30% during local night.
      Enhanced by 30% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 30% over the UT day.

Predicted Monthly T index for May:  51

2. FORECAST (18 MAY - 24 MAY) 
MUFs: near predicted monthly values to slightly enhanced on other days.
Slight chance of brief depressions after local dawn on 24-25 May.

Propagation conditions: Normal-Fair on 24-25 May. Otherwise Normal-Good.
SWFs are possible.

T index: 85
SWS SWF HF Communications Warning 44 was issued on 17 May and 
is current for 17-19 May.

3. OUTLOOK (25 MAY - 24 JUNE)
Degraded HF propagation conditions possible:
25-26 May.

PLEASE NOTE:
Space weather conditions can frequently be determined by short 
timescale events that cannot be forecast a week in advance,
particularly at solar maximum.

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.

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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