[Ips-dhfpr] SWS Daily HF Prop Report - 29 July 22 issued 2330 UT on 29 Jul 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/29 JULY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (29 JULY) 
Date   T index  Conditions    
29 Jul    42    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 35% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 35% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jun      60
Jul      65
Aug      67


2. FORECAST (30 JULY - 01 AUGUST)
Date   T index  Conditions       MUFs                              
30 Jul    45    Normal           Depressed 15%/near predicted 
                                 monthly values
31 Jul    50    Normal           Near predicted monthly values    
01 Aug    50    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 29-Jul were 
mostly near monthly values to 25% depressed in the Australian 
region. The cause of this mild depression is unknown. Spread-F 
was observed in Darwin, Townsville, Brisbane and Hobart during 
local night hours. Sporadic E was observed at Cocos Islands and 
Learmonth. MUFs are expected to be near predicted monthly values 
to 15% depressed over 30-Jul to 01-Aug.

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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
Level 2 Bice Building, Lot Fourteen Precinct, North Terrace, Adelaide SA 5000
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au