[Ips-dhfpr] ASWFC Daily HF Prop Report - 11 January 24 issued 2330 UT on 11 Jan 2024 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/11 JANUARY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (11 JANUARY) 
Date   T index  Conditions    
11 Jan   138    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.9 10/2328UT  possible   lower  West Pacific
  M1.3    1251UT  possible   lower  European
  M1.5    1752UT  possible   lower  South American/
                                    Atlantic
  M1.2    1924UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values 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/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Dec      110
Jan      106
Feb      105


2. FORECAST (12 JANUARY - 14 JANUARY)
Date   T index  Conditions       MUFs                              
12 Jan   145    Normal           Near to 15% above predicted 
                                 monthly values
13 Jan   145    Normal           Near to 15% above predicted 
                                 monthly values    
14 Jan   145    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 3 was issued on 
10 January and is current for 10-12 Jan. Maximum usable frequencies 
(MUFs) on UT day 11-Jan in the northern Australian region were 
20% enhanced. MUFs in the southern Australian region were near 
predicted monthly values during local day, with enhancements 
of up to 15% observed during local night. Sporadic E was observed 
at Brisbane, Canberra and Hobart, although weaker than previous 
days. MUFs are expected to be near predicted monthly values to 
15% enhanced over 12-14 Jan. Further sporadic E in the south 
east of the Australian region is likely. Shortwave fadeouts are 
possible.

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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