[Ips-dhfpr] SWS Daily HF Prop Report - 29 May 19 issued 2330 UT on 29 May 2019
Regional Warning Centre
rwc at ips.gov.au
Thu May 30 09:30:22 EST 2019
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/29 MAY 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (29 MAY)
Date T index Conditions
29 May 4 Normal
Flares: none.
MUFs:
Cocos Island Region:
Near predicted monthly values during local day.
Enhanced by 30% during local night.
Niue Island Region:
Near predicted monthly values during local day.
Enhanced by 40% during local night.
Northern Australian Region:
Depressed by 15% during local day.
Enhanced by 35% during local night.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 35% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 15% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Apr 1
May -12
Jun -12
2. FORECAST (30 MAY - 01 JUNE)
Date T index Conditions MUFs
30 May -12 Normal Near predicted monthly values/depressed
10 to 30%
31 May -12 Normal Near predicted monthly values/depressed
10 to 30%
01 Jun -7 Normal Near predicted monthly values
COMMENT: Maximum usable frequencies (MUFs) ranged mostly from
near predicted monthly values to moderately enhanced ones for
Australian regions and Antarctica. Variable conditions with mild
enhancements and depressions were observed in Northern Australian
region. Notable periods of degraded ionospheric support for Antarctic
regions over the UT day. For 30-31 May, MUFs are expected to
range mostly from near predicted monthly levels to mildly depressed
ones; the depressions are a consequence of the recent increase
in geomagnetic activity. Mostly near predicted monthly levels
are expected for 1 June.
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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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