[Ips-dhfpr] SWS Daily HF Prop Report - 26 July 16 issued 2352 UT on 26 Jul 2016 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 JULY 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 JULY) 
Date   T index  Conditions    
26 Jul    17    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
      Depressed by 35% after local dawn.
   Niue Island Region:
      No data available during local day.
      No data available during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 25% during local night.
      Depressed by 20% after local dawn.
   Southern Australian Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 30% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jun      31
Jul      42
Aug      40


2. FORECAST (27 JULY - 29 JULY)
Date   T index  Conditions       MUFs                              
27 Jul    20    Normal-fair      Depressed 15%/near predicted 
                                 monthly values
28 Jul    10    Normal-fair      15 to 20% below predicted monthly 
                                 values    
29 Jul    10    Normal-fair      15 to 20% below predicted monthly 
                                 values   

COMMENT: SWS HF Communications Warning 34 was issued on 26 July 
and is current for 26-27 Jul. Variable ionospheric support for 
Northern AUS and Equatorial regions over the last 24 hours with 
brief periods of enhancement and notable depressed MUF's. Similar 
conditions for Southern AUS and NZ regions with disturbed conditions 
for Antarctic regions. Only minor ionospheric recovery is to 
be expected over the next 24 hours due to low solar activity 
and anticipated arrival of further coronal hole driven geomagnetic 
activity over the next 3 days resulting in depressed MUF's of 
~~20% for 28-29Jul.

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