[Ips-dhfpr] ASWFC Daily HF Prop Report - 11 October 23 issued 2331 UT on 11 Oct 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/11 OCTOBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (11 OCTOBER) 
Date   T index  Conditions    
11 Oct   141    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 50% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 30% during local night.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 25-30% during local night and after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Enhanced by 30% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Sep      104
Oct      98
Nov      96


2. FORECAST (12 OCTOBER - 14 OCTOBER)
Date   T index  Conditions       MUFs                              
12 Oct   140    Normal           15 to 25% above predicted monthly 
                                 values
13 Oct   140    Normal           15 to 25% above predicted monthly 
                                 values    
14 Oct   140    Normal           15 to 25% above predicted monthly 
                                 values   

COMMENT: ASWFC SWF HF Communications Warning 104 was issued on 
10 October and is current for 11-12 Oct. Maximum usable frequencies 
(MUFs) on UT day 11-Oct were enhanced by 15-30% in the Australian 
region. MUFs are expected to be 15-25% enhanced over 12-14 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