[Ips-dhfpr] SWS Daily HF Prop Report - 26 December 16 issued 2336 UT on 26 Dec 2016 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Tue Dec 27 10:36:07 EST 2016
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 DECEMBER 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (26 DECEMBER)
Date T index Conditions
26 Dec 5 Normal-fair
Flares: none.
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Niue Island Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Depressed by 15% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Depressed by 25% during local day.
Near predicted monthly values during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 15% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Nov 3
Dec 24
Jan 23
2. FORECAST (27 DECEMBER - 29 DECEMBER)
Date T index Conditions MUFs
27 Dec -5 Normal-fair Depressed 15%/near predicted
monthly values
28 Dec 0 Normal Depressed 15%/near predicted
monthly values
29 Dec 5 Normal Near predicted monthly values
COMMENT: Minor to moderate depressions in MUFs occurred during
the local day over most Australian regions on UT day 26 December.
MUFs for the equatorial regions (for example at Cocos island)
were near monthly predicted levels throughout the UT day. The
two day outlook is for further degradation of MUFs due to loss
in ionisation levels associated with active conditions observed
on UT day 26 December. HF support are expected to return to near
monthly predicted levels from late 29 December. HF users are
advised to use lower than the monthly predicted frequencies today
and tomorrow, 27-28 December.
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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
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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