[Ips-dhfpr] SWS Daily HF Prop Report - 19 April 18 issued 2331 UT on 19 Apr 2018 [SEC=UNCLASSIFIED]
rwc at ips.gov.au
Fri Apr 20 09:31:29 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 APRIL 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (19 APRIL)
Date T index Conditions
19 Apr 6 Normal
Cocos Island Region:
No data available during local day.
No data available during local night.
Niue Island Region:
Depressed by 20% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 25% during local night.
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
2. FORECAST (20 APRIL - 22 APRIL)
Date T index Conditions MUFs
20 Apr 7 Normal Near predicted monthly values
21 Apr -5 Normal Near predicted monthly values/depressed
15 to 25%
22 Apr -5 Normal Near predicted monthly values/depressed
15 to 25%
COMMENT: On UT day 19 April, MUFs were near predicted monthly
values over most of the Aus/NZ region. There were minor depressions
in the Niue Island Region during the local day. There were a
few cases of Sporadic E blanketing. MUFs are expected to be mostly
near predicted monthly levels on 20 April, with minor to moderate
depressions possible on 21-22 April due to forecast geomagnetic
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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