[Ips-dhfpr] ASWFC Daily HF Prop Report - 13 January 23 issued 2331 UT on 13 Jan 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/13 JANUARY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 JANUARY) 
Date   T index  Conditions    
13 Jan   105    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.4    0259UT  possible   lower  E. Asia/Aust.
  M4.0    1015UT  possible   lower  European

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Niue Island Region:
      Enhanced by 15-20%.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Enhanced by 20% 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
Dec      84
Jan      71
Feb      72


2. FORECAST (14 JANUARY - 16 JANUARY)
Date   T index  Conditions       MUFs                              
14 Jan   100    Normal           Near to 15% above predicted 
                                 monthly values
15 Jan   100    Normal           Near to 15% above predicted 
                                 monthly values    
16 Jan   100    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 6 was issued on 
13 January and is current for 13-15 Jan. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 13-Jan were near predicted 
monthly values to 20% enhanced in the northern Australian region 
and depressed 15% for the first half of the local day then becoming 
enhanced during the local night hours in the southern Australian 
region. Some southern Australian region sites are mildly depressed 
around 13/22-23UT this morning, however the mild depression is 
not expected to persist. MUFs are expected to be near predicted 
monthly values to 15% enhanced over 13-15 Jan. Shortwave fadeouts 
are probable.

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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