[Ips-dhfpr] ASWFC Daily HF Prop Report - 15 September 22 issued 2331 UT on 15 Sep 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/15 SEPTEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (15 SEPTEMBER) 
Date   T index  Conditions    
15 Sep    91    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Niue Island Region:
      Enhanced by 40%-50%.
   Northern Australian Region:
      Enhanced by 15-20%.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   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
Aug      53
Sep      68
Oct      69


2. FORECAST (16 SEPTEMBER - 18 SEPTEMBER)
Date   T index  Conditions       MUFs                              
16 Sep    80    Normal-fair      About 15% above predicted monthly 
                                 values
17 Sep    80    Normal-fair      About 15% above predicted monthly 
                                 values    
18 Sep    80    Normal           About 15% above predicted monthly 
                                 values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 15-Sep were 
more enhanced than expected. Regional MUFs are expected to be 
mostly near to 15% above predicted monthly values during 16-18 
Sep, with mildly degraded HF conditions possible during local 
night hours and briefly after local dawn for southern region 
Australia only, in association with an anticipated mild increase 
in geomagnetic activity from a coronal hole wind stream.

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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