[Ips-dhfpr] ASWFC Daily HF Prop Report - 26 April 23 issued 2331 UT on 26 Apr 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 APRIL 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 APRIL) 
Date   T index  Conditions    
26 Apr    99    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 50% during local day.
      Enhanced by 20% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Near predicted monthly values 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
Mar      132
Apr      84
May      84


2. FORECAST (27 APRIL - 29 APRIL)
Date   T index  Conditions       MUFs                              
27 Apr    90    Fair             Near predicted monthly values 
                                 to 15% depressed
28 Apr    85    Fair             Near predicted monthly values 
                                 to 15% depressed    
29 Apr    85    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 26-Apr in 
the Australian region were enhanced by 20% in the northern region 
in local day time, and near predicted monthly values otherwise. 
Sporadic-E was observed at most sites during local night hours. 
Spread F was observed at Hobart. MUFs are expected to be near 
predicted monthly values to 15% depressed over 27-28 Apr due 
to anticipated geomagnetic activity. MUFs are expected to be 
near predicted values on 29-Apr.

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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