[Ips-dhfpr] ASWFC Daily HF Prop Report - 23 August 24 issued 2330 UT on 23 Aug 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 AUGUST 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 AUGUST) 
Date   T index  Conditions    
23 Aug   158    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M3.4    0341UT  possible   lower  E. Asia/Aust.
  M1.0    0418UT  possible   lower  E. Asia/Aust.
  M1.7    1357UT  possible   lower  European
  M1.7    1505UT  possible   lower  South American/
                                    Atlantic
  M1.1    1642UT  possible   lower  South American/
                                    Atlantic
  M1.1    1933UT  possible   lower  East Pacific/
                                    North American
  M3.4    1944UT  possible   lower  East Pacific/
                                    North American
  M5.1    2012UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Enhanced by 45% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 30% during local night.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 15% during local night.
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

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


2. FORECAST (24 AUGUST - 26 AUGUST)
Date   T index  Conditions       MUFs                              
24 Aug   155    Normal           15 to 25% above predicted monthly 
                                 values
25 Aug   155    Normal           15 to 25% above predicted monthly 
                                 values    
26 Aug   155    Normal           15 to 25% above predicted monthly 
                                 values   

COMMENT: ASWFC SWF HF Communications Warning 94 was issued on 
22 August and is current for 22-24 Aug. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 23-Aug were 15-30% 
enhanced. Spread F was observed at Hobart during local night 
hours. MUFs are expected to be 15-25% enhanced over 24-26 Aug. 
Shortwave fadeouts are probable.

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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