[Ips-dhfpr] SWS Daily HF Prop Report - 18 August 18 issued 2330 UT on 18 Aug 2018 [SEC=UNCLASSIFIED]
Regional Warning Centre
rwc at ips.gov.au
Sun Aug 19 09:30:26 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/18 AUGUST 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (18 AUGUST)
Date T index Conditions
18 Aug 2 Normal-fair
Flares: none.
MUFs:
Niue Island Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Northern Australian Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Jul 6
Aug -3
Sep -4
2. FORECAST (19 AUGUST - 21 AUGUST)
Date T index Conditions MUFs
19 Aug 0 Normal Near predicted monthly values
20 Aug 10 Normal Near predicted monthly values
21 Aug -5 Normal-fair Depressed 10 to 20%/near predicted
monthly values
COMMENT: Mostly normal HF conditions were observed across the
Aus/NZ regions on UT day 18, with Minor MUF depressions in the
Northern Australian region during local day. Incidents of Spread
F and Sporadic E were observed at some Australian sites. Mostly
normal to moderately enhanced MUFs are expected in the Aus/NZ
regions for the next two UT days (19-20 Aug). Periods of moderately
degraded conditions are possible on 21 Aug due to expected increase
of geomagnetic activity.
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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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