[Ips-dhfpr] IPS Daily HF Prop Report - 18 April 16 issued 2352 UT on 18 Apr 2016 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Tue Apr 19 09:52:51 EST 2016
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/18 APRIL 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (18 APRIL)
Date T index Conditions
18 Apr 11 Normal-fair
Flares Max Fadeout Freq. Sectors
M6.7 0029UT probable lower West Pacific
MUFs:
Cocos Island Region:
Near predicted monthly values.
Niue Island Region:
Depressed by 25% during local day.
Depressed by 35% during local night.
Northern Australian Region:
Depressed by 20% during local day.
Depressed by 40% during local night.
Depressed by 20% after local dawn.
Southern Australian Region:
Depressed by 30% during local day.
Depressed by 30% during local night.
Depressed by 20% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 25% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Mar 50
Apr 50
May 49
2. FORECAST (19 APRIL - 21 APRIL)
Date T index Conditions MUFs
19 Apr 5 Normal-fair 20 to 30% below predicted monthly
values
20 Apr 10 Normal-fair 15 to 20% below predicted monthly
values
21 Apr 15 Normal-fair 15 to 20% below predicted monthly
values
COMMENT: IPS HF Communications Warning 19 was issued on 16 April
and is current for 17-19 Apr. Depressed MUFs were observed across
the majority of Australian regions over the last 24 hours. Continued
MUF depressions of 20-40% are expected for all regions over the
next 3 days with disturbed ionospheric support for Antarctic
regions.
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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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