[Ips-dhfpr] SWS Daily HF Prop Report - 31 December 19 issued 2331 UT on 31 Dec 2019

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/31 DECEMBER 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (31 DECEMBER) 
Date   T index  Conditions    
31 Dec   -25    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% 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
Nov      -30
Dec      -16
Jan      -17


2. FORECAST (01 JANUARY - 03 JANUARY)
Date   T index  Conditions       MUFs                              
01 Jan   -25    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%
02 Jan   -22    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 25%    
03 Jan   -22    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 25%   

COMMENT: Maximum usable frequencies (MUFs) were mostly from near 
predicted monthly to moderated depressed levels for the Australian 
region on UT day 31 December. Sporadic-E occurrences were seen 
over most Australian ionosonde sites. Nearly similar MUF conditions 
may be expected for the next three UT days, 01-03 January in 
the Australian regions.

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

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.