[Ips-dhfpr] ASWFC Daily HF Prop Report - 17 October 22 issued 2330 UT on 17 Oct 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 OCTOBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 OCTOBER) 
Date   T index  Conditions    
17 Oct    68    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Enhanced by 30% 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/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Sep      74
Oct      69
Nov      69


2. FORECAST (18 OCTOBER - 20 OCTOBER)
Date   T index  Conditions       MUFs                              
18 Oct    75    Normal           Near predicted monthly values
19 Oct    75    Normal           Near predicted monthly values    
20 Oct    75    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 17-Oct were 
mostly near predicted monthly values. Strong enhancements were 
observed at Niue. Spread F was observed at Perth and Hobart during 
local night hours. MUFs were depressed 15-25% at Learmonth and 
Perth (WA) during the interval 17/00-05UT. MUFs are expected 
to be near predicted monthly values over 18-20 Oct.

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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