[Ips-dhfpr] SWS Daily HF Prop Report - 17 August 18 issued 2334 UT on 17 Aug 2018 [SEC=UNCLASSIFIED]

[rwc]

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

1. SUMMARY (17 AUGUST) 
Date   T index  Conditions    
17 Aug    10    Normal         

Flares: none.

MUFs:
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% 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
Jul      6
Aug      -3
Sep      -4


2. FORECAST (18 AUGUST - 20 AUGUST)
Date   T index  Conditions       MUFs                              
18 Aug     0    Normal           Near predicted monthly values
19 Aug     0    Normal           Near predicted monthly values    
20 Aug    10    Normal           20 to 30% above predicted monthly 
                                 values   

COMMENT: Mostly normal HF conditions were observed across the 
Aus/NZ regions on UT day 17 Aug. Moderately enhanced MUFs were 
observed over Australasia during local night. Incidents of Spread 
F and Sporadic E were observed at some Australian sites. The 
two days outlook, 18-19 Aug is for MUFs to be mostly near monthly 
predicted levels. MUFs are expected to be strongest on UT day 
20 Aug at the onset of expected geomagnetic disturbance.

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