[Ips-dhfpr] SWS Daily HF Prop Report - 21 September 18 issued 2352 UT on 21 Sep 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/21 SEPTEMBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 SEPTEMBER) 
Date   T index  Conditions    
21 Sep    -6    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Depressed by 20% during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Aug      1
Sep      -4
Oct      -4


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

COMMENT: Continued minor MUF depressions for Northern AUS/Equatorial 
regions observed over the last 24 hours. MUFs near predicted 
monthly values for Southern AUS/NZ and Antarctic regions. Similar 
HF conditions are expected over the next 3 days with chance of 
variable ionospheric support for Equatorial/Northern AUS to Southern 
AUS/NZ regions with possible enhancements and disturbed conditions 
for Antarctic regions due to anticipated increase in geomagnetic 
activity.

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