[Ips-dhfpr] SWS Daily HF Prop Report - 22 March 17 issued 2330 UT on 22 Mar 2017 [SEC=UNCLASSIFIED]

Regional Warning Centre rwc at sws.bom.gov.au
Thu Mar 23 10:30:27 EST 2017


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/22 MARCH 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 MARCH) 
Date   T index  Conditions    
22 Mar    14    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Depressed by 15% during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Depressed 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.

PCA Event : No event.

Monthly T index:
Month  T index
Feb      10
Mar      16
Apr      15


2. FORECAST (23 MARCH - 25 MARCH)
Date   T index  Conditions       MUFs                              
23 Mar    10    Normal-fair      10 to 30% below predicted monthly 
                                 values
24 Mar    12    Normal-fair      Depressed 5 to 15%/near predicted 
                                 monthly values    
25 Mar    15    Normal           Near predicted monthly values   

COMMENT: SWS HF Communications Warning 20 was issued on 21 March 
and is current for 22-23 Mar. MUFs across the Australian/NZ region 
were mostly near predicted monthly values today (22 March, UT) 
with some periods of minor depressions in some northern and southern 
regions. Minor MUF enhancements were also observed at times in 
the northern regions. Minor to moderate MUF depressions and degradations 
in HF conditions are expected in the Australian/NZ regions on 
23 and 24 March due to expected continued rise in geomagnetic 
activity levels on these days. HF conditions are expected to 
return to mostly normal levels by 25 March.

----------------------------------------------------------
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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