[Ips-dhfpr] SWS Daily HF Prop Report - 17 December 18 issued 2335 UT on 17 Dec 2018 [SEC=UNCLASSIFIED]
rwc
rwc at ips.gov.au
Tue Dec 18 10:35:29 EST 2018
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 DECEMBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (17 DECEMBER)
Date T index Conditions
17 Dec -32 Normal
Flares: none.
MUFs:
Cocos Island Region:
No data available during local day.
No data available during local night.
Niue Island Region:
Depressed by 25% during local day.
Depressed by 20% 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 during local day.
Depressed by 20% during local night.
Depressed by 20% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Depressed by 15% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Nov -32
Dec -8
Jan -9
2. FORECAST (18 DECEMBER - 20 DECEMBER)
Date T index Conditions MUFs
18 Dec -30 Normal Depressed 10 to 20%/near predicted
monthly values
19 Dec -30 Normal Depressed 10 to 20%/near predicted
monthly values
20 Dec -30 Normal Depressed 10 to 20%/near predicted
monthly values
COMMENT: SWS HF Communications Warning 29 was issued on 17 December
and is current for 18-20 Dec. On UT day 17 December, there were
minor to moderate MUF depressions across the Australian region
as compared to the monthly predicted levels. Sporadic E layers
were seen across the Australian region and in Antarctica. Similar
conditions are expected for the next three days, as a consequence
of the continued very low levels of ionising radiation from the
Sun.
----------------------------------------------------------
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
IMPORTANT: This e-mail, including any attachments, may contain,
confidential or copyright information. The views expressed in
this message are those of the individual sender, unless
specifically stated to be the views of SWS. If you are not
the intended recipient, please contact the sender immediately
and delete all copies of this e-mail and attachments.
To unsubscribe from an IPS mail list either send an email to
"MAIL_LIST"-leave at ips.gov.au or go to
http://www.sws.bom.gov.au/mailman/listinfo/"MAIL_LIST".
Information about training can be obtained from
http://www.sws.bom.gov.au/mailman/listinfo/ips-training.
General information is available from
http://www.sws.bom.gov.au/mailman/listinfo/ips-info.
More information about the ips-dhfpr
mailing list