[Ips-dhfpr] SWS Daily HF Prop Report - 15 October 16 issued 2342 UT on 15 Oct 2016 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Sun Oct 16 10:42:23 EST 2016
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/15 OCTOBER 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (15 OCTOBER)
Date T index Conditions
15 Oct 3 Poor-fair
Flares: none.
MUFs:
Cocos Island Region:
Depressed by 25% during local day.
Depressed by 30% during local night.
Niue Island Region:
No data available.
Northern Australian Region:
Depressed by 45% during local day.
Depressed by 30% during local night.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 15% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Sep 30
Oct 30
Nov 30
2. FORECAST (16 OCTOBER - 18 OCTOBER)
Date T index Conditions MUFs
16 Oct 10 Poor-fair Near predicted monthly values/depressed
20 to 30%
17 Oct 15 Fair-normal Near predicted monthly values/depressed
10 to 20%
18 Oct 15 Fair-normal Near predicted monthly values/depressed
10 to 20%
COMMENT: SWS HF Communications Warning 45 was issued on 15 October
and is current for 15-16 Oct. Improved MUFs as the ionosphere
slowly replenishes from the severe storm associated with the
09 Oct CME. Conditions for HF radio propagation were depressed
throughout the Australian region during the early hours of 14
Oct UT. Real time T indices decreased to -53 at some low latitude
locations. As the day progressed, support for radio wave propagation
recovered at most mid-latitude stations. Ionospheric recovery
after recent sever geomagnetic storm is expected to continue
over the next three days. MUFs are expected to remain degraded
during the recovery phase in response to the forecasted Active
conditions.
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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.
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