[Ips-dhfpr] ASWFC Daily HF Prop Report - 04 December 24 issued 2330 UT on 04 Dec 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/04 DECEMBER 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (04 DECEMBER) 
Date   T index  Conditions    
04 Dec   124    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M2.3    1000UT  possible   lower  European
  M1.3    2046UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Depressed by 25% during local day.
      Depressed by 15% during local night.
   Niue Island Region:
      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.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Nov      127
Dec      117
Jan      114


2. FORECAST (05 DECEMBER - 07 DECEMBER)
Date   T index  Conditions       MUFs                              
05 Dec   130    Normal           Near predicted monthly values
06 Dec   130    Normal           Near predicted monthly values    
07 Dec   130    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region on UT day 04-Dec were near predicted monthly values, with 
enhancements of up to 20% observed in the northern Australian 
region. Sporadic E was observed at several Australian sites during 
local night hours. Spread F was observed at Hobart during local 
night hours. MUFs are expected to be near predicted monthly values 
over 05-07 Dec. 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