[Ips-dhfpr] SWS Daily HF Prop Report - 21 November 17 issued 2351 UT on 21 Nov 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/21 NOVEMBER 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 NOVEMBER) 
Date   T index  Conditions    
21 Nov    34    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Enhanced by 20% during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 25% after local dawn.
   Southern Australian Region:
      Enhanced 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
Oct      4
Nov      5
Dec      4


2. FORECAST (22 NOVEMBER - 24 NOVEMBER)
Date   T index  Conditions       MUFs                              
22 Nov     0    Normal-fair      Near predicted monthly values
23 Nov     5    Normal-fair      Near predicted monthly values    
24 Nov     5    Normal           Near predicted monthly values   

COMMENT: Variable HF conditions ranging from sustained enhancements 
to minor depressions for Equatorial/Northern AUS and Southern 
AUS/NZ regions observed over the last 24 hours. Similar conditions 
are expected for 22Nov with increased chance of depressed MUFs 
for Northern AUS and Southern AUS/NZ regions and poor ionospheric 
support for Antarctic regions. MUFs expected to be near predicted 
monthly values for 23Nov-24Nov.

----------------------------------------------------------
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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