[Ips-dhfpr] SWS Daily HF Prop Report - 19 January 19 issued 2342 UT on 19 Jan 2019 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 JANUARY 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 JANUARY) 
Date   T index  Conditions    
19 Jan   -38    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 50% during local day.
      Depressed by 25% during local night.
   Niue Island Region:
      Depressed by 35% during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Depressed by 35% during local day.
      Depressed by 30% during local night.
   Southern Australian Region:
      Depressed by 25% during local day.
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Dec      -32
Jan      -12
Feb      -13


2. FORECAST (20 JANUARY - 22 JANUARY)
Date   T index  Conditions       MUFs                              
20 Jan   -30    Normal-fair      Depressed 15 to 30%/near predicted 
                                 monthly values
21 Jan   -30    Normal-fair      Depressed 15 to 30%/near predicted 
                                 monthly values    
22 Jan   -30    Normal-fair      Depressed 15 to 30%/near predicted 
                                 monthly values   

COMMENT: On UT day 19 January, MUFs experienced Mild to Moderate 
depressions during the local night and Severe depressions during 
the local day across the Island and Northern Australian regions. 
Mild to Moderate MUF depressions were experienced in the Southern 
Australian region and Mild depressions in the Antarctic region 
over the UT day. Sporadic E layers were observed across all regions. 
Similar levels of ionospheric support are expected for the next 
3 days with MUFs either near predicted monthly values or mildly 
to moderately depressed due to continued low levels of ionising 
radiation from the Sun.

----------------------------------------------------------
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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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
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