From aswfc at bom.gov.au  Fri May  1 09:30:47 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Fri, 01 May 2026 09:30:47 +1000
Subject: [Ips-dhfpr] ASWFC Daily HF Prop Report - 30 April 26 issued 2330 UT
 on 30 Apr 2026 [SEC=OFFICIAL]
Message-ID: <69f3e627.orDVDSu4RF+UWGwY%aswfc@bom.gov.au>

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 APRIL 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 APRIL) 
Date   T index  Conditions    
30 Apr    77    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Mar      92
Apr      83
May      81


2. FORECAST (01 MAY - 03 MAY)
Date   T index  Conditions       MUFs                              
01 May    80    Normal-fair      Near predicted monthly values
02 May    85    Normal           Near predicted monthly values    
03 May    85    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 44 was issued on 
30 April and is current for 30 Apr to 2 May. Maximum Usable Frequencies 
(MUFs) in the Australian region were near predicted monthly values 
on UT day 30-Apr. Spread F was observed at Hobart and Canberra 
during local night hours. MUFs are expected to be generally near 
predicted monthly values over 01-03 May, with mild depressions 
possible on 01-May. 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


From aswfc at bom.gov.au  Sat May  2 09:30:52 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Sat, 02 May 2026 09:30:52 +1000
Subject: [Ips-dhfpr] ASWFC Daily HF Prop Report - 01 May 26 issued 2330 UT
 on 01 May 2026 [SEC=OFFICIAL]
Message-ID: <69f537ac.UbXY0P+HrbjgIAP6%aswfc@bom.gov.au>

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/01 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (01 MAY) 
Date   T index  Conditions    
01 May    84    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 20% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68


2. FORECAST (02 MAY - 04 MAY)
Date   T index  Conditions       MUFs                              
02 May    85    Normal-fair      Near predicted monthly values
03 May    85    Normal-fair      Near predicted monthly values    
04 May    85    Normal-fair      Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 45 was issued on 
1 May and is current for 1-2 May. Maximum Usable Frequencies 
(MUFs) in the Australian region on 01-May were mostly near predicted 
monthly values, with some enhancements seen at Niue Island. Spread-F 
and sporadic-E were observed at Perth and Hobart, with sporadic-E 
also observed at Canberra. Depressions of 20% were observed in 
the Antarctic region. MUFs are expected to be near predicted 
monthly values over 02-04 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


From aswfc at bom.gov.au  Sun May  3 09:30:51 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Sun, 03 May 2026 09:30:51 +1000
Subject: [Ips-dhfpr] ASWFC Daily HF Prop Report - 02 May 26 issued 2330 UT
 on 02 May 2026 [SEC=OFFICIAL]
Message-ID: <69f6892b.lDpUQaSm7QodDWgM%aswfc@bom.gov.au>

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/02 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (02 MAY) 
Date   T index  Conditions    
02 May    86    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available 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.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68


2. FORECAST (03 MAY - 05 MAY)
Date   T index  Conditions       MUFs                              
03 May    85    Normal           Near predicted monthly values
04 May    85    Normal           Near predicted monthly values    
05 May    85    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were largely near predicted values, with some enhancements 
observed in the northern Australian region and at Niue Island 
during local daytime. Sporadic-E was observed during local night 
hours in southern Australian region, and spread-F was observed 
at Hobart. MUFs are expected to remain near predicted monthly 
values over 03-05 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


From aswfc at bom.gov.au  Mon May  4 09:30:50 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Mon, 04 May 2026 09:30:50 +1000
Subject: [Ips-dhfpr] ASWFC Daily HF Prop Report - 03 May 26 issued 2330 UT
 on 03 May 2026 [SEC=OFFICIAL]
Message-ID: <69f7daaa.pfG9N8b64/3Fm8e8%aswfc@bom.gov.au>

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/03 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (03 MAY) 
Date   T index  Conditions    
03 May    92    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 45% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68


2. FORECAST (04 MAY - 06 MAY)
Date   T index  Conditions       MUFs                              
04 May    85    Normal           Near predicted monthly values
05 May    85    Normal           Near predicted monthly values    
06 May    85    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region on UT day 03-May were largely near predicted values, with 
some enhancements observed during daylight hours, including up 
to 45% enhanced at Niue Island. Sporadic E and spread-F were 
observed at Hobart and Canberra. MUFs are forecast to be near 
predicted monthly values over 04-06 May, with some enhancements 
possible during daylight hours.

----------------------------------------------------------
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


From aswfc at bom.gov.au  Tue May  5 09:30:52 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Tue, 05 May 2026 09:30:52 +1000
Subject: [Ips-dhfpr] ASWFC Daily HF Prop Report - 04 May 26 issued 2330 UT
 on 04 May 2026 [SEC=OFFICIAL]
Message-ID: <69f92c2c.71SF3WNHh23y0Twe%aswfc@bom.gov.au>

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/04 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (04 MAY) 
Date   T index  Conditions    
04 May    84    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.8    0133UT  possible   lower  West Pacific

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Enhanced by 25% during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68


2. FORECAST (05 MAY - 07 MAY)
Date   T index  Conditions       MUFs                              
05 May    80    Normal-fair      Near predicted monthly values
06 May    85    Normal           Near predicted monthly values    
07 May    85    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region on UT day 04-May were largely near predicted monthly values, 
with 15-25% enhancements observed in northern Australia regions. 
Spread-F were observed at Hobart and Canberra during local night 
hours. MUFs are forecast to be near predicted monthly values 
over 05-07 May.

----------------------------------------------------------
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


From aswfc at bom.gov.au  Wed May  6 09:30:52 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Wed, 06 May 2026 09:30:52 +1000
Subject: [Ips-dhfpr] ASWFC Daily HF Prop Report - 05 May 26 issued 2330 UT
 on 05 May 2026 [SEC=OFFICIAL]
Message-ID: <69fa7dac.QYEyRuvne1CqKsbu%aswfc@bom.gov.au>

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/05 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (05 MAY) 
Date   T index  Conditions    
05 May    81    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available 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.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 25% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68


2. FORECAST (06 MAY - 08 MAY)
Date   T index  Conditions       MUFs                              
06 May    75    Normal           Near predicted monthly values
07 May    75    Normal           Near predicted monthly values    
08 May    75    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region on UT day 05-May were mostly near predicted monthly values, 
with 15% enhancements observed in northern Australia regions. 
Spread F was observed at Hobart and Canberra during local night 
hours. MUFs are forecast to be near predicted monthly values 
over 06-08 May.

----------------------------------------------------------
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


From aswfc at bom.gov.au  Thu May  7 09:30:52 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Thu, 07 May 2026 09:30:52 +1000
Subject: [Ips-dhfpr] ASWFC Daily HF Prop Report - 06 May 26 issued 2330 UT
 on 06 May 2026 [SEC=OFFICIAL]
Message-ID: <69fbcf2c.B1EnJPBseafiSJh3%aswfc@bom.gov.au>

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/06 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (06 MAY) 
Date   T index  Conditions    
06 May    61    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68


2. FORECAST (07 MAY - 09 MAY)
Date   T index  Conditions       MUFs                              
07 May    65    Normal           Near predicted monthly values
08 May    55    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 15%    
09 May    65    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were largely near predicted values during local daylight 
hours on UT day 06-May. Some depressions of 15% were observed 
in the southern Australian region as well as at Niue Island during 
local night hours. Spread-F was also observed during local night 
hours at Hobart and Learmonth. MUFs are expected to remain near 
predicted values for 07-May, with some depressions of 10-15% 
possible on 08-May due to forecast geomagnetic activity. These 
are forecast to begin recovering toward predicted values over 
09-May.

----------------------------------------------------------
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


From aswfc at bom.gov.au  Fri May  8 09:30:52 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Fri, 08 May 2026 09:30:52 +1000
Subject: [Ips-dhfpr] ASWFC Daily HF Prop Report - 07 May 26 issued 2330 UT
 on 07 May 2026 [SEC=OFFICIAL]
Message-ID: <69fd20ac.PnfAVVJYUN1ECPUd%aswfc@bom.gov.au>

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/07 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (07 MAY) 
Date   T index  Conditions    
07 May    58    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M2.6    1514UT  possible   lower  South American/
                                    Atlantic

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Enhanced by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68


2. FORECAST (08 MAY - 10 MAY)
Date   T index  Conditions       MUFs                              
08 May    55    Normal-fair      Depressed 10 to 15%/near predicted 
                                 monthly values
09 May    60    Normal           Near predicted monthly values    
10 May    65    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were largely near predicted values during daylight hours 
on UT day 07-May, with depressions of up to 15% reported during 
local night hours. MUFs are forecast to continue to have depressions 
of 10-15% on 08-May due to coronal hole high speed wind stream 
effects. MUFs are then expected to improve over 09-10 May as 
this geomagnetic activity subsides. Shortwave fadeouts are possible 
over 09-10 May.

----------------------------------------------------------
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


From aswfc at bom.gov.au  Sat May  9 09:30:54 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Sat, 09 May 2026 09:30:54 +1000
Subject: [Ips-dhfpr] ASWFC Daily HF Prop Report - 08 May 26 issued 2330 UT
 on 08 May 2026 [SEC=OFFICIAL]
Message-ID: <69fe722e.kauWTZApZxMJeNc3%aswfc@bom.gov.au>

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/08 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (08 MAY) 
Date   T index  Conditions    
08 May    75    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68


2. FORECAST (09 MAY - 11 MAY)
Date   T index  Conditions       MUFs                              
09 May    70    Normal           Near predicted monthly values
10 May    70    Normal           Near predicted monthly values    
11 May    70    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were mostly near predicted monthly values on UT day 08-May, 
with 15% depressions observed in northern Australia during local 
night hours. Spread F was observed at Hobart during local night 
hours. MUFs are expected to be near predicted monthly values 
over 09-11 May. 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


From aswfc at bom.gov.au  Sun May 10 09:30:46 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Sun, 10 May 2026 09:30:46 +1000
Subject: [Ips-dhfpr] ASWFC Daily HF Prop Report - 09 May 26 issued 2330 UT
 on 09 May 2026 [SEC=OFFICIAL]
Message-ID: <69ffc3a6.jwZryNCcRXRvn88y%aswfc@bom.gov.au>

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/09 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (09 MAY) 
Date   T index  Conditions    
09 May    69    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68


2. FORECAST (10 MAY - 12 MAY)
Date   T index  Conditions       MUFs                              
10 May    60    Normal           Near predicted monthly values
11 May    60    Normal           Near predicted monthly values    
12 May    60    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were near predicted monthly values on UT day 09-May. Spread 
F was observed at Hobart during local night hours. MUFs are expected 
to be near predicted monthly values over 10-12 May. 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


From aswfc at bom.gov.au  Mon May 11 09:30:51 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Mon, 11 May 2026 09:30:51 +1000
Subject: [Ips-dhfpr] ASWFC Daily HF Prop Report - 10 May 26 issued 2330 UT
 on 10 May 2026 [SEC=OFFICIAL]
Message-ID: <6a01152b.B5IVtj6YYePfkZ+A%aswfc@bom.gov.au>

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/10 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (10 MAY) 
Date   T index  Conditions    
10 May    59    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M5.7    1339UT  possible   lower  European

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 35% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68


2. FORECAST (11 MAY - 13 MAY)
Date   T index  Conditions       MUFs                              
11 May    55    Normal           Near predicted monthly values
12 May    60    Normal           Near predicted monthly values    
13 May    60    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 47 was issued on 
10 May and is current for 11-13 May. Maximum Usable Frequencies 
(MUFs) in the Australian region were mostly near predicted monthly 
values on UT day 10-May, with 35% depressions observed in northern 
Australia during local night hours. Spread F was observed at 
Hobart and Darwin during local night hours. MUFs are expected 
to be near predicted monthly values over 11-13 May. 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


From aswfc at bom.gov.au  Tue May 12 09:30:53 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Tue, 12 May 2026 09:30:53 +1000
Subject: [Ips-dhfpr] ASWFC Daily HF Prop Report - 11 May 26 issued 2330 UT
 on 11 May 2026 [SEC=OFFICIAL]
Message-ID: <6a0266ad.pjSGjuMZ2SawTF5m%aswfc@bom.gov.au>

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/11 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (11 MAY) 
Date   T index  Conditions    
11 May    52    Normal-fair    

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 30% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68


2. FORECAST (12 MAY - 14 MAY)
Date   T index  Conditions       MUFs                              
12 May    60    Normal           Near predicted monthly values
13 May    60    Normal           Near predicted monthly values    
14 May    60    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 47 was issued on 
10 May and is current for 11-13 May. Maximum Usable Frequencies 
(MUFs) in the Australian region were mostly near predicted monthly 
values during daylight hours, with depressions of 15-25% observed 
during local night hours. Some spread F was observed at Norfolk 
Island, and some sporadic E was observed at Darwin during local 
night hours. Depressions of 25-35%, and spread F was also observed 
at Niue Island. MUFs are expected to be near predicted values 
over 12-14 May, with some mild depressions possible during night 
hours. 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


From aswfc at bom.gov.au  Wed May 13 09:32:05 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Wed, 13 May 2026 09:32:05 +1000
Subject: [Ips-dhfpr] ASWFC Daily HF Prop Report - 12 May 26 issued 2332 UT
 on 12 May 2026 [SEC=OFFICIAL]
Message-ID: <6a03b875.FzyMnKYmNRFONgfv%aswfc@bom.gov.au>

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/12 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (12 MAY) 
Date   T index  Conditions    
12 May    53    Fair           

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68


2. FORECAST (13 MAY - 15 MAY)
Date   T index  Conditions       MUFs                              
13 May    60    Normal-fair      Near predicted monthly values
14 May    60    Normal-fair      Near predicted monthly values    
15 May    45    Fair-normal      Depressed 15 to 20%/near predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 47 was issued on 
10 May and is current for 11-13 May. Maximum Usable Frequencies 
(MUFs) were near predicted values during daylight hours in the 
Australian region during 12-May. Depressions of 15-25% were observed 
during local night hours. Spread-F was also observed across multiple 
sites in the Australian region during local night hours. MUFs 
are expected to be near predicted values over 13-14 May, with 
some depressions possible during night hours. Depressions of 
15-25% are possible during the second half of 15-May, due to 
forecast geomagnetic activity. 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


