[Ips-dhfpr] ASWFC Daily HF Prop Report - 30 June 23 issued 2330 UT on 30 Jun 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 JUNE 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 JUNE) 
Date   T index  Conditions    
30 Jun    92    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   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
May      98
Jun      88
Jul      87


2. FORECAST (01 JULY - 03 JULY)
Date   T index  Conditions       MUFs                              
01 Jul    90    Normal-fair      Near predicted monthly values
02 Jul    90    Normal           Near predicted monthly values    
03 Jul    90    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 60 was issued on 
29 June and is current for 29 Jun to 1 Jul. Maximum usable frequencies 
(MUFs) on UT day 30-Jun in the Australian region were generally 
near predicted monthly values. Depressions of 15% were observed 
in Northern Australian regions during local night hours. Spread 
F was observed during local night hours at Hobart. MUFs are expected 
to be near predicted values over 01-03 Jul. Mildly degraded HF 
conditions may be experienced during local night hours. 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