[Ips-dhfpr] ASWFC Daily HF Prop Report - 10 September 22 issued 2330 UT on 10 Sep 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/10 SEPTEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (10 SEPTEMBER) 
Date   T index  Conditions    
10 Sep    63    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Depressed by 25% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed 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 (11 SEPTEMBER - 13 SEPTEMBER)
Date   T index  Conditions       MUFs                              
11 Sep    60    Normal           Near predicted monthly values
12 Sep    60    Normal           Near predicted monthly values    
13 Sep    60    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 10-Sep were 
mostly near predicted monthly values for the Australian region, 
with mild depressions observed in the southern Australian region 
during local night. Spread-F was observed in Hobart, during local 
night, and sporadic E was observed at Brisbane, Townsville and 
Learmonth, during local night. Regional MUFs are expected to 
be near predicted monthly values over 11-13 Sep, with mild depressions 
possible due to coronal hole high speed wind stream effects, 
particularly at high latitudes during local night.

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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