[Ips-dhfpr] ASWFC Daily HF Prop Report - 03 December 22 issued 2331 UT on 03 Dec 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/03 DECEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (03 DECEMBER) 
Date   T index  Conditions    
03 Dec    76    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.3    1741UT  possible   lower  South American/
                                    Atlantic

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Enhanced by 35% during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   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      77
Dec      70
Jan      70


2. FORECAST (04 DECEMBER - 06 DECEMBER)
Date   T index  Conditions       MUFs                              
04 Dec    70    Normal           Near predicted monthly values
05 Dec    75    Normal           Near predicted monthly values    
06 Dec    75    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 95 was issued on 
2 December and is current for 2-4 Dec. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 3-Dec were near predicted 
monthly values with some mild depressions in the southern Australian 
region at the start of the UT day. Significant amounts of sporadic 
E were observed across the Australian region during local night. 
MUFs are expected to be near predicted monthly values over 4-6 
Dec, with a chance of mild depressions on 4-Dec and 6-Dec due 
to a possible glancing blow from a CME on 4-Dec and high speed 
wind stream effects from an equatorial coronal hole on 6-Dec.

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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