[Ips-dhfpr] SWS Daily HF Prop Report - 17 November 18 issued 2333 UT on 17 Nov 2018 [SEC=UNCLASSIFIED]

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SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 NOVEMBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 NOVEMBER) 
Date   T index  Conditions    
17 Nov   -40    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 35% during local night.
   Northern Australian Region:
      Depressed by 30% during local day.
      Depressed by 20% during local night.
      Depressed by 25% after local dawn.
   Southern Australian Region:
      Depressed by 20% during local day.
      Depressed by 15% 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
Oct      -17
Nov      -7
Dec      -7


2. FORECAST (18 NOVEMBER - 20 NOVEMBER)
Date   T index  Conditions       MUFs                              
18 Nov   -35    Normal           Depressed 10%-30%/near predicted 
                                 monthly values
19 Nov   -40    Normal           Depressed 10 to 30%/near predicted 
                                 monthly values    
20 Nov   -40    Normal           Depressed 10 to 30%/near predicted 
                                 monthly values   

COMMENT: SWS HF Communications Warning 16 was issued on 16 November 
and is current for 17-19 Nov. HF conditions for the AUS/NZ region 
during the last 24 hours saw MUFs depressions ranging between 
10%-30% during local day for all latitudes and an isolated enhanced 
period for Equatorial regions. MUFs ranged from minor depressions 
to near predicted monthly values during local night for Equatorial/Northern 
AUS regions with Southern AUS/NZ and Antarctic regions near predicted 
monthly values and isolated enhanced periods. Similar levels 
of depressed ionospheric support expected for the next 3 days 
with minor to moderate MUF depressions across all latitude bands 
due to continued very 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
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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