[Ips-dhfpr] ASWFC Daily HF Prop Report - 15 April 23 issued 2331 UT on 15 Apr 2023 [SEC=OFFICIAL]
Regional Warning Centre
rwc at ips.gov.au
Sun Apr 16 09:31:28 EST 2023
SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/15 APRIL 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (15 APRIL)
Date T index Conditions
15 Apr 123 Normal
Flares Max Fadeout Freq. Sectors
M1.5 14/2327UT possible lower West Pacific
MUFs:
Cocos Island Region:
Enhanced by 15% during local day.
Enhanced by 80% during local night.
Niue Island Region:
Near predicted monthly values during local day.
Enhanced by 15% during local night.
Northern Australian Region:
Enhanced by 15-25%.
Southern Australian Region:
Enhanced by 15-25%.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 25% over the UT day.
PCA Event : No event.
Monthly T index:
Month T index
Mar 132
Apr 84
May 84
2. FORECAST (16 APRIL - 18 APRIL)
Date T index Conditions MUFs
16 Apr 125 Normal 15-30% above predicted monthly
values
17 Apr 125 Normal 15-30% above predicted monthly
values
18 Apr 125 Normal 15-30% above predicted monthly
values
COMMENT: ASWFC SWF HF Communications Warning 36 was issued on
14 April and is current for 14-16 Apr. Maximum usable frequencies
(MUFs) on UT day 15-Apr in the Australian region were enhanced
by 15-80%. Strong enhancements were observed at Cocos Island.
MUFs are expected to be 15-30% enhanced over 16-18 Apr. Isolated
shortwave fadeouts are possible.
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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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