[Ips-dhfpr] ASWFC Daily HF Prop Report - 14 August 23 issued 2333 UT on 14 Aug 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/14 AUGUST 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (14 AUGUST) 
Date   T index  Conditions    
14 Aug   109    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 65% during local night.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jul      103
Aug      88
Sep      84


2. FORECAST (15 AUGUST - 17 AUGUST)
Date   T index  Conditions       MUFs                              
15 Aug   110    Normal           Near to 15% above predicted 
                                 monthly values
16 Aug   110    Normal           Near to 15% above predicted 
                                 monthly values    
17 Aug   110    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 14-Aug were 
near predicted values to 15% enhanced in the Australian region. 
Strong enhancements were observed at Niue during local night 
hours. Ionospheric amplitude scintillation was observed 14/0759-1012UT 
at Niue. Depressions of 20% were observed at Cocos Island during 
local night hours. Mild spread-F was observed at Hobart during 
local night hours. MUFs are expected to be near predicted monthly 
values to 15% enhanced over 15-17 Aug.

----------------------------------------------------------
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