[Ips-dhfpr] ASWFC Daily HF Prop Report - 07 October 22 issued 2331 UT on 07 Oct 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/07 OCTOBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (07 OCTOBER) 
Date   T index  Conditions    
07 Oct    90    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.0    1445UT  possible   lower  South American/
                                    Atlantic

MUFs:
   Cocos Island Region:
      Enhanced by 20-50%.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 15-20%.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      No data available over the UT day.

PCA Event : No event.

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


2. FORECAST (08 OCTOBER - 10 OCTOBER)
Date   T index  Conditions       MUFs                              
08 Oct    90    Normal           10 to 15% above predicted monthly 
                                 values
09 Oct    90    Normal-fair      10 to 15% above predicted monthly 
                                 values    
10 Oct    90    Normal           10 to 15% above predicted monthly 
                                 values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 07-Oct were 
near predicted monthly values to 15-20% enhanced, with strongly 
enhanced MUFs observed at Cocos Island. Spread F was observed 
at Perth and Hobart during local night hours. Degraded HF conditions 
are possible during local night hours 09-Oct, southern Australian 
region only. Very mildly depressed MUFs were observed after local 
dawn at Hobart but are not expected to persist. MUFs are expected 
to be 10-15% above predicted monthly values on 08-10-Oct. 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