[Ips-dhfpr] ASWFC Daily HF Prop Report - 19 July 24 issued 2330 UT on 19 Jul 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 JULY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 JULY) 
Date   T index  Conditions    
19 Jul   139    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M3.2    0823UT  possible   lower  Mid East/Indian
  M2.0    1806UT  possible   lower  East Pacific/
                                    North American
  M1.0    2252UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Enhanced by 90% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 35% during local night.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Enhanced by 25% 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
Jun      120
Jul      118
Aug      117


2. FORECAST (20 JULY - 22 JULY)
Date   T index  Conditions       MUFs                              
20 Jul   135    Normal           Near predicted monthly values
21 Jul   135    Normal           Near predicted monthly values    
22 Jul   135    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 19-Jul were 
near predicted monthly values to 35% enhanced in the Australian 
region. Spread F was observed at Hobart and Brisbane during local 
night hours. MUFs are expected to be near predicted monthly values 
over 20-22 Jul. Isolated 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