[Ips-dhfpr] ASWFC Daily HF Prop Report - 19 January 24 issued 2330 UT on 19 Jan 2024 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 JANUARY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 JANUARY) 
Date   T index  Conditions    
19 Jan   157    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
      Enhanced by 35% after local dawn.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 25% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 35% during local night.
      Enhanced by 25% after local dawn.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
      Enhanced by 30% after local dawn.
   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 (20 JANUARY - 22 JANUARY)
Date   T index  Conditions       MUFs                              
20 Jan   160    Normal           15-40% above monthly predicted 
                                 values
21 Jan   160    Normal           15-40% above monthly predicted 
                                 values    
22 Jan   160    Normal           15-40% above monthly predicted 
                                 values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 19-Jan were 
enhanced by 15-35% in the Australian region. Brief sporadic-E 
was observed at Hobart, Niue Island and Norfolk Island Canberra 
during local dawn hours. MUFs are expected to be enhanced 15-40% 
over 20-22 Jan.

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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