[Ips-dhfpr] ASWFC Daily HF Prop Report - 20 October 24 issued 2331 UT on 20 Oct 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 OCTOBER 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 OCTOBER) 
Date   T index  Conditions    
20 Oct   123    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
      Enhanced by 20% 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
Sep      147
Oct      116
Nov      115


2. FORECAST (21 OCTOBER - 23 OCTOBER)
Date   T index  Conditions       MUFs                              
21 Oct   135    Normal           Near predicted monthly values 
                                 to 15% enhanced
22 Oct   140    Normal-fair      Near predicted monthly values 
                                 to 15% enhanced    
23 Oct   130    Normal           Near predicted monthly values 
                                 to 15% depressed   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region on UT day 20-Oct were mostly near predicted values, with 
15% depressions during early local day and 20% enhanced during 
local night. MUFs are expected to be near predicted values on 
21 and 22 Oct, with possible 15% enhancements. Depressions up 
to 15% are possible by 23-Oct.

----------------------------------------------------------
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