[Ips-dhfpr] SWS Daily HF Prop Report - 12 November 19 issued 2331 UT on 12 Nov 2019
Regional Warning Centre
rwc at ips.gov.au
Wed Nov 13 10:31:38 EST 2019
SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/12 NOVEMBER 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (12 NOVEMBER)
Date T index Conditions
12 Nov -48 Normal-fair
Flares: none.
MUFs:
Cocos Island Region:
Depressed by 30% during local day.
Depressed by 35% during local night.
Depressed by 20% after local dawn.
Niue Island Region:
Enhanced by 20% during local day.
Depressed by 15% during local night.
Depressed by 20% after local dawn.
Northern Australian Region:
Depressed by 35% during local day.
Depressed by 20% during local night.
Southern Australian Region:
Depressed by 30% during local day.
Depressed by 15% 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
Oct -20
Nov -16
Dec -17
2. FORECAST (13 NOVEMBER - 15 NOVEMBER)
Date T index Conditions MUFs
13 Nov -35 Normal Near predicted monthly values/depressed
15 to 30%
14 Nov -30 Normal Near predicted monthly values/depressed
15 to 30%
15 Nov -30 Normal Near predicted monthly values/depressed
15 to 30%
COMMENT: Variable HF propagation conditions were observed over
the Australian region during UT day 12 November. Maximum usable
frequencies (MUFs) varied between near predicted monthly values
to mildly and moderately depressed ones. Mild to moderate enhancements
were occasionally observed at local night. Sporadic-E occurrences
were seen over all the sites. For the next three UT days, 13-15
November, mildly depressed to near predicted monthly MUFs are
expected over the Australian region.
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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
Bureau of Meteorology
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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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