[Ips-dhfpr] SWS Daily HF Prop Report - 16 May 17 issued 2330 UT on 16 May 2017 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Wed May 17 09:30:22 EST 2017
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/16 MAY 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (16 MAY)
Date T index Conditions
16 May 15 Normal-fair
Flares: none.
MUFs:
Cocos Island Region:
Mostly near predicted monthly values.
Niue Island Region:
Mostly near predicted monthly values.
Northern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 30% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Apr 14
May 12
Jun 12
2. FORECAST (17 MAY - 19 MAY)
Date T index Conditions MUFs
17 May 0 Fair Depressed 20 to 40%/near predicted
monthly values
18 May 5 Fair Depressed 10 to 20%/near predicted
monthly values
19 May 10 Normal Near predicted monthly values
COMMENT: SWS HF Communications Warning 27 was issued on 15 May
and is current for 16-18 May. Minor to mild MUF depressions were
observed in the northern and central parts of Aus regions today
(16 May). Minor to mild MUF enhancements were observed in the
Southern Aus regions on this day. Minor to moderate MUF depressions
and degradations in HF conditions may be expected in this region
from 17 to 18 May due to expected continued rise in geomagnetic
activity levels on these days. MUFs and HF conditions are expected
to gradually recover to mostly normal levels in this region on
19 May.
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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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