[Ips-dhfpr] SWS Daily HF Prop Report - 23 February 19 issued 2330 UT on 23 Feb 2019 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 FEBRUARY 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 FEBRUARY) 
Date   T index  Conditions    
23 Feb   -13    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 25% during local night.
   Niue Island Region:
      No data available during local day.
      No data available during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Enhanced by 60% 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
Jan      -27
Feb      -12
Mar      -13


2. FORECAST (24 FEBRUARY - 26 FEBRUARY)
Date   T index  Conditions       MUFs                              
24 Feb   -15    Normal           Near predicted monthly values
25 Feb   -15    Normal           Near predicted monthly values    
26 Feb   -15    Normal           Near predicted monthly values   

COMMENT: On UT day 23 February, MUFs were mostly near monthly 
predicted levels over most of the Australian region. The Cocos 
Island region experienced mild to moderate enhancements during 
both the local day and local night. The Northern Australian region 
experienced mild depressions during the local day and enhancements 
during the local night. Some periods of sporadic E layers were 
seen across the region. During the next three UT days, 24-26 
February, MUFs are expected to be mostly near monthly predicted 
levels. However, mild to moderate depressions are possible due 
to continued very low levels of ionising radiation from the Sun.

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For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Space Weather Services              email: asfc at bom.gov.au
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