[Ips-whfpr] SWS Weekly Prop. Report (13 April 22) issued 2328 UT on 12 Apr 2022 [SEC=OFFICIAL]
rwc
rwc at ips.gov.au
Wed Apr 13 09:28:20 EST 2022
SUBJ: SWS WEEKLY HF PROPAGATION REPORT
ISSUED ON 13 APRIL 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (06 APRIL - 12 APRIL)
Date T index Conditions
06 Apr 89 Normal
MUFS:
Cocos Island Region:
Enhanced by 40% during local day.
Enhanced by 35% during local night.
Niue Island Region:
Enhanced by 30% during local day.
Enhanced by 20% during local night.
Northern Australian Region:
Enhanced by 25% during local day.
Enhanced by 25% during local night.
Enhanced by 25% after local dawn.
Southern Australian Region:
Enhanced by 25% during local day.
Enhanced by 20% during local night.
Enhanced by 35% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
07 Apr 94 Normal
MUFS:
Cocos Island Region:
Enhanced by 35% during local day.
Enhanced by 30% during local night.
Niue Island Region:
Enhanced by 15% during local day.
Enhanced by 25% during local night.
Enhanced by 30% after local dawn.
Northern Australian Region:
Enhanced by 25% during local day.
Enhanced by 25% during local night.
Enhanced by 50% after local dawn.
Southern Australian Region:
Enhanced by 25% during local day.
Enhanced by 30% during local night.
Enhanced by 20% after local dawn.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
08 Apr 74 Normal
MUFS:
Cocos Island Region:
Enhanced by 30% during local day.
Enhanced by 25% during local night.
Enhanced by 25% after local dawn.
Niue Island Region:
Mostly near predicted monthly values.
Northern Australian Region:
Enhanced by 20% during local day.
Enhanced by 15% during local night.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
09 Apr 83 Normal
MUFS:
Cocos Island Region:
Enhanced by 30% during local day.
Enhanced by 30% during local night.
Niue Island Region:
Enhanced by 30% during local day.
Enhanced by 45% during local night.
Enhanced by 25% after local dawn.
Northern Australian Region:
Enhanced by 15% during local day.
Enhanced by 15% during local night.
Southern Australian Region:
Near predicted monthly values during local day.
Enhanced by 40% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 25% over the UT day.
10 Apr 78 Normal
MUFS:
Cocos Island Region:
Enhanced by 25% during local day.
Near predicted monthly values during local night.
Niue Island Region:
Enhanced by 20% during local day.
Near predicted monthly values during local night.
Northern Australian Region:
Enhanced by 15% during local day.
Enhanced by 25% during local night.
Southern Australian Region:
Enhanced by 15% during local day.
Enhanced by 15% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
11 Apr 63 Normal
MUFS:
Cocos Island Region:
Enhanced by 50% during local day.
Near predicted monthly values during local night.
Enhanced by 25% after local dawn.
Niue Island Region:
Enhanced by 20% during local day.
Near predicted monthly values during local night.
Enhanced by 20% after local dawn.
Northern Australian Region:
Enhanced by 15% during local day.
Enhanced by 15% during local night.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
12 Apr 61 Normal
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.
Near predicted monthly values during local night.
Northern Australian Region:
Enhanced by 15% during local day.
Enhanced by 25% during local night.
Enhanced by 20% after local dawn.
Southern Australian Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
Predicted Monthly T index for April: 46
2. FORECAST (13 APRIL - 19 APRIL)
MUFS:
depressed 10 to 20% from late 13 Apr, and after local dawn on 14 Apr.
MUFs near predicted monthly values on other days.
Propagation conditions:
Fair-Poor on late 13 Apr. Fair on 14 Apr. Otherwise normal.
Initially no SWFs; increasing chance of SWFs later in the week.
T index: 46
SWS Preliminary HF Communications Warning 33 was issued on 12
April and is current for 13-15 Apr.
3. OUTLOOK (20 APRIL - 20 MAY)
Degraded HF propagation conditions possible:
16-17 Apr, 28 Apr, 4 May, 6-8 May
PLEASE NOTE:
Space weather conditions can frequently be determined by short
timescale events that cannot be forecast a week in advance,
particularly at solar maximum.
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.
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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