[Ips-dhfpr] ASWFC Daily HF Prop Report - 30 January 24 issued 2330 UT on 30 Jan 2024 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 JANUARY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 JANUARY) 
Date   T index  Conditions    
30 Jan   137    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Mostly near predicted monthly values.
      Enhanced by 30% after local dawn.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 25% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : 10MeV Proton/PCA Event Began at 0605UT 29/01, Ended at 0405UT 30/01

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


2. FORECAST (31 JANUARY - 02 FEBRUARY)
Date   T index  Conditions       MUFs                              
31 Jan   132    Normal-fair      Near to 15% above predicted 
                                 monthly values
01 Feb   123    Normal           Near to 15% above predicted 
                                 monthly values    
02 Feb   132    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 30-Jan were 
near predicted monthly values in the northern Australian region 
and were 20-25% enhanced in the southern Australian region, with 
the strongest enhancements observed during local night. Significant 
sporadic E was observed at Hobart during local night and dawn 
hours. MUFs are expected to be near predicted monthly values 
over 31-Jan to 2-Feb. Mild depressions in the southern Australian 
region are possible from the second half of 31-Jan to 1-Feb, 
due to anticipated geomagnetic activity on 31-Jan. Isolated 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