[Ips-dhfpr] ASWFC Daily HF Prop Report - 26 May 24 issued 2330 UT on 26 May 2024 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 MAY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 MAY) 
Date   T index  Conditions    
26 May   115    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Enhanced by 15% during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values to 30% enhanced during local day.
      Depressed by 15-20% at times during local night.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      125
May      114
Jun      116


2. FORECAST (27 MAY - 29 MAY)
Date   T index  Conditions       MUFs                              
27 May   125    Normal           Near to 15% above predicted 
                                 monthly values
28 May   125    Normal           Near to 15% above predicted 
                                 monthly values    
29 May   125    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 56 was issued on 
26 May and is current for 26-28 May. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 26-May were generally 
near predicted monthly values. Darwin MUFs were 30% enhanced 
during the local day. Spread F was observed at Hobart and Canberra 
during local night hours. Brief ionospheric equatorial scintillation 
was observed at Niue 26/0832-0850UT. MUFs are expected to be 
near predicted monthly values to 15% enhanced over 27-29 May. 
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