[Ips-dhfpr] SWS Daily HF Prop Report - 24 September 21 issued 2331 UT on 24 Sep 2021

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/24 SEPTEMBER 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 SEPTEMBER) 
Date   T index  Conditions    
24 Sep    31    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Niue Island Region:
      No data available.
   Northern Australian Region:
      Depressed by 15% during local day.
      Enhanced by 20% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Aug      14
Sep      27
Oct      30


2. FORECAST (25 SEPTEMBER - 27 SEPTEMBER)
Date   T index  Conditions       MUFs                              
25 Sep    25    Normal           Near predicted monthly values
26 Sep    20    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%    
27 Sep    15    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%   

COMMENT: SWS SWF HF Communications Warning 24 was issued on 23 
September and is current for 23-25 Sep. MUFs in the Australian 
region on UT day 24 September were mostly near predicted monthly 
values, with some enhancements during the local night. There 
were also some mild MUF depressions during the local day in the 
Northern Australian region. MUFs in the Australian region are 
expected to be near predicted monthly values on UT day 25 September. 
Some mild MUF depressions are possible on UT days 26-27 September 
due to the expected increase in geomagnetic activity.

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

IMPORTANT: This e-mail, including any attachments, may contain,
confidential or copyright information.  The views expressed in 
this message are those of the individual sender, unless 
specifically stated to be the views of SWS.  If you are not 
the intended recipient, please contact the sender immediately 
and delete all copies of this e-mail and attachments. 
To unsubscribe from an IPS mail list either send an email to 
"MAIL_LIST"-leave at ips.gov.au or go to
http://www.sws.bom.gov.au/mailman/listinfo/"MAIL_LIST".
Information about training can be obtained from
http://www.sws.bom.gov.au/mailman/listinfo/ips-training.
General information is available from
http://www.sws.bom.gov.au/mailman/listinfo/ips-info.