[Ips-dhfpr] ASWFC Daily HF Prop Report - 29 January 24 issued 2331 UT on 29 Jan 2024 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/29 JANUARY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (29 JANUARY) 
Date   T index  Conditions    
29 Jan   128    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.2    0140UT  possible   lower  West Pacific
  M6.8    0438UT  probable   lower  E. Asia/Aust.

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 35% during local night.
      Enhanced by 35% after local dawn.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.
      Proton event in progress, increased absorption observed.

PCA Event : 10MeV Proton/PCA Event Began 29 01 2024 0605UT and is in progress

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


2. FORECAST (30 JANUARY - 01 FEBRUARY)
Date   T index  Conditions       MUFs                              
30 Jan   130    Normal           Near to 15% above predicted 
                                 monthly values
31 Jan   130    Fair             Near to 15% above predicted 
                                 monthly values    
01 Feb   125    Normal           Near to 10% below predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 11 was issued on 
29 January and is current for 29-30 Jan. Maximum usable frequencies 
(MUFs) on UT day 29-Jan were near predicted values in the Australian 
region. Sporadic E was observed at Hobart during local night 
hours. MUFs are expected to be near predicted values over 30-Jan 
to 1-Feb. Depressions are possible from the second half of 31-Jan 
to 1-Feb due to anticipated geomagnetic activity on 31-Jan. 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