[Ips-dhfpr] ASWFC Daily HF Prop Report - 15 May 23 issued 2331 UT on 15 May 2023 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Tue May 16 09:31:05 EST 2023
SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/15 MAY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (15 MAY)
Date T index Conditions
15 May 104 Normal
Flares: none.
MUFs:
Cocos Island Region:
Enhanced by 15% during local day.
Near predicted monthly values during local night.
Niue Island Region:
Enhanced by 15% during local day.
Enhanced by 35% during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian Region:
Near predicted monthly values.
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
Apr 120
May 87
Jun 88
2. FORECAST (16 MAY - 18 MAY)
Date T index Conditions MUFs
16 May 105 Normal Near to 15% above predicted
monthly values
17 May 105 Normal Near to 15% above predicted
monthly values
18 May 105 Normal Near to 15% above predicted
monthly values
COMMENT: Maximum usable frequencies (MUFs) on UT day 15-May were
near predicted monthly values in the Australian region. Spread-F
was observed at Brisbane, Canberra and Hobart during local night
hours. MUFs are expected to be near predicted monthly values
to 15% enhanced over 16-18 May. Isolated shortwave fadeouts are
possible.
----------------------------------------------------------
For an explanation of some of the terms in this report, go to
https://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.
Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au
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