[Ips-dhfpr] ASWFC Daily HF Prop Report - 09 October 22 issued 2330 UT on 09 Oct 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/09 OCTOBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (09 OCTOBER) 
Date   T index  Conditions    
09 Oct   101    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 20-45%.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
      Enhanced by 30% after local dawn.
   Northern Australian Region:
      Enhanced by 15%.
   Southern Australian Region:
      Enhanced by 15-20%.
   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 (10 OCTOBER - 12 OCTOBER)
Date   T index  Conditions       MUFs                              
10 Oct    80    Fair-normal      10 to 15% above predicted monthly 
                                 values northern Australian region. 
                                 15% depressed to near normal 
                                 southern Australian region.
11 Oct    95    Normal           10 to 20% above predicted monthly 
                                 values    
12 Oct    95    Normal           10 to 20% above predicted monthly 
                                 values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 09-Oct were 
mostly near predicted monthly values to 15-45% enhanced. Strong 
daytime enhancements were observed at Cocos Island. Strong spread 
F was observed during local night hours at Hobart 09/15-19UT. 
Mild depressions of 15% were observed after local dawn at Hobart, 
Canberra and Brisbane following mild overnight geomagnetic activity. 
These depressions are not expected to continue and generally 
enhanced MUFs are expected in the Australian region for today 
with HF conditions improving for the southern Australian region.

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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