[Ips-dhfpr] ASWFC Daily HF Prop Report - 03 March 24 issued 2333 UT on 03 Mar 2024 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/03 MARCH 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (03 MARCH) 
Date   T index  Conditions    
03 Mar   113    Normal-poor    

Flares: none.

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

PCA Event : No event.

Monthly T index:
Month  T index
Feb      138
Mar      111
Apr      112


2. FORECAST (04 MARCH - 06 MARCH)
Date   T index  Conditions       MUFs                              
04 Mar    80    Poor-normal      Depressed 15 to 20%/near predicted 
                                 monthly values
05 Mar   110    Normal           Near predicted monthly values    
06 Mar   110    Normal           Near predicted monthly values   

COMMENT: ASWFC HF Communications Warning 25 was issued on 3 March 
and is current for 4 Mar only. Maximum usable frequencies (MUFs) 
on UT day 03-Mar were near predicted monthly values until local 
dawn this morning then depressed by 15-30% for the southern Australian 
region. Spread F was observed during local night hours at Perth 
and Hobart. Ionospheric scintillation was observed at Darwin 
and Weipa 03/1118-1420UT. Range spread was observed on Cocos 
Island and Darwin ionograms during local night hours. MUFs are 
expected to be depressed 15 to 20% for the southern Australian 
region on 04-Mar. Northern Australian region MUFs are expected 
to be 15% depressed to near normal. Isolated minor 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