[Ips-dhfpr] SWS Daily HF Prop Report - 31 July 16 issued 2350 UT on 31 Jul 2016 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/31 JULY 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (31 JULY) 
Date   T index  Conditions    
31 Jul    16    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 25% during local day.
      Depressed by 20% during local night.
      Depressed by 35% after local dawn.
   Niue Island Region:
      No data available.
   Northern Australian Region:
      Depressed by 30% during local day.
      Depressed by 25% during local night.
      Depressed by 20% after local dawn.
   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
Jun      31
Jul      42
Aug      40


2. FORECAST (01 AUGUST - 03 AUGUST)
Date   T index  Conditions       MUFs                              
01 Aug    20    Normal-fair      Near predicted monthly values
02 Aug     5    Fair-normal      15 to 30% below predicted monthly 
                                 values    
03 Aug     5    Fair-normal      15 to 30% below predicted monthly 
                                 values   

COMMENT: SWS HF Communications Warning 37 was issued on 31 July 
and is current for 31 Jul to 1 Aug. Depressed MUF's observed 
over all regions during the last 24 hours with isolated enhancements 
for some Northern AUS and Southern AUS/NZ regions. Disturbed 
ionospheric support for Antarctic regions. Continued MUF depressions 
are expected over the next 24 hours. Chance of disturbed ionospheric 
support for Southern AUS/NZ regions and overall MUF depressions 
of 15-30% for 02Aug-03Aug due to increased 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
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