[Ips-dhfpr] SWS Daily HF Prop Report - 28 May 17 issued 2354 UT on 28 May 2017 [SEC=UNCLASSIFIED]
rwc at ips.gov.au
Mon May 29 09:54:30 EST 2017
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
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
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
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