[Ips-dhfpr] SWS Daily HF Prop Report - 23 January 18 issued 2343 UT on 23 Jan 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 JANUARY 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 JANUARY) 
Date   T index  Conditions    
23 Jan    -4    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 20% during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   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
Dec      -10
Jan      4
Feb      4


2. FORECAST (24 JANUARY - 26 JANUARY)
Date   T index  Conditions       MUFs                              
24 Jan    -5    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%
25 Jan    -5    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%    
26 Jan     0    Normal           Near predicted monthly values   

COMMENT: SWS HF Communications Warning 2 was issued on 23 January 
and is current for 23-24 Jan. Notable depressed MUFs observed 
for Northern AUS, Southern AUS/NZ regions and continued sporadic 
E conditions for SWS Canberra,Camden,Brisbane,Norfolk IS. and 
Townsville stations between 08UT-16UT. Normal ionospheric support 
for Antarctic regions. With Very Low solar activity, similar 
conditions are expected for 24Jan-25Jan. Chance of increased 
ionospheric support and MUFs near predicted monthly values for 
26Jan.

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