[Ips-dhfpr] SWS Daily HF Prop Report - 28 May 17 issued 2354 UT on 28 May 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/28 MAY 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (28 MAY) 
Date   T index  Conditions    
28 May    38    Fair           

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 30% during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Enhanced by 40% during local day.
      Enhanced by 30% during local night.
   Southern Australian Region:
      Near predicted monthly values.
      Periods over Hobart between 08-21UT showed no useable frequencies
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.
      Periods over Antarctica between 08-21UT showed no useable frequencies

PCA Event : No event.

Monthly T index:
Month  T index
Apr      14
May      12
Jun      12


2. FORECAST (29 MAY - 31 MAY)
Date   T index  Conditions       MUFs                              
29 May    12    Normal           Near predicted monthly values
30 May    12    Normal           Near predicted monthly values    
31 May    12    Normal           Near predicted monthly values   

COMMENT: SWS HF Communications Warning 30 was issued on 27 May 
and is current for 28-29 May. Northern Australia and Cocos Island 
had enhanced MUFs due to the timing of the geomagnetic storm. 
The Southern Australia region had near predicted MUFs, however 
ionograms from stations such as Antarctica and Hobart between 
28/08-21UT showed no foF2 layer. Expect a return to near predicted 
conditions as the geomagnetic storm wanes. Isolated periods of 
Sporadic E was observed over the Australian region.

----------------------------------------------------------
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
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

IMPORTANT: This e-mail, including any attachments, may contain,
confidential or copyright information.  The views expressed in 
this message are those of the individual sender, unless 
specifically stated to be the views of SWS.  If you are not 
the intended recipient, please contact the sender immediately 
and delete all copies of this e-mail and attachments. 
To unsubscribe from an IPS mail list either send an email to 
"MAIL_LIST"-leave at ips.gov.au or go to
http://www.sws.bom.gov.au/mailman/listinfo/"MAIL_LIST".
Information about training can be obtained from
http://www.sws.bom.gov.au/mailman/listinfo/ips-training.
General information is available from
http://www.sws.bom.gov.au/mailman/listinfo/ips-info.