[Ips-dhfpr] ASWFC Daily HF Prop Report - 15 August 24 issued 2330 UT on 15 Aug 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/15 AUGUST 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (15 AUGUST) 
Date   T index  Conditions    
15 Aug   179    Normal         

Flares    Max     Fadeout    Freq.  Sectors
 M1.1    0348UT  possible   lower  E. Asia/Aust.

MUFs:
   Cocos Island Region:
      Enhanced by 40% during local day.
      Enhanced by 115% during local night.
   Niue Island Region:
      Enhanced by 50% during local day.
      Enhanced by 95% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 75% during local night.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 30% during local night.
      Enhanced by 25% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Enhanced by 20% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jul      131
Aug      119
Sep      119


2. FORECAST (16 AUGUST - 18 AUGUST)
Date   T index  Conditions       MUFs                              
16 Aug   170    Normal           15 to 35% above predicted monthly 
                                 values
17 Aug   170    Normal           15 to 35% above predicted monthly 
                                 values    
18 Aug   150    Normal-fair      15 to 25% above predicted monthly 
                                 values   

COMMENT: ASWFC SWF HF Communications Warning 92 was issued on 
15 August and is current for 15-17 Aug. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 15-Aug were enhanced 
by 15-75%. Enhancements were particularly strong in northern 
Australian regions. Ionospheric scintillation was observed at 
Niue, Darwin and Weipa during the interval 15/0741-1434UT. MUFs 
are expected to be 15-35% enhanced over 16-18 Aug. Shortwave 
fadeouts are probable.

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