[NZ4O Spaceweather] NZ4O "Daily" HF/6M Radiowave Propagation Forecast
Thomas F. Giella
thomasfgiella at tampabay.rr.com
Fri Jul 13 04:52:48 PDT 2012
The NZ4O "Daily" HF/6M Radiowave Propagation Forecast has been published on
Friday July 13, 2012 at 1200 UTC and is valid for the next 24 hours.
"An In Depth HF/6M Radiowave Propagation Forecast For Amateur Radio
Operators As Well As SWL's"
This daily condensed HF/6M radiowave propagation forecast can also be found
at http://www.wcflunatall.com/dailycondensedhfprop.htm ,
http://www.facebook.com/pages/SolarCycle24org/139198369462931 and
http://lists.contesting.com/mailman/listinfo/spaceweather .
The complete MF/HF/6M 7 day period radiowave propagation forecast can be
found at http://www.solarcycle24.org .
This radiowave propagation forecast is provided free of charge to the radio
hobby communities but donations are graciously accepted. You can donate by
going to http://www.paypal.com and clicking on the "Send Money" tab. My
Paypal ID/email address is thomasfgiella at tampabay.rr.com .
NOTE! This HF/6M radiowave propagation forecast covers all continents and
all hemispheres.
FORECASTED NORTHERN HEMISPHERE GLOBAL HF CONDITIONS BY BAND-
BAND: DAY -> NIGHT
80, 60 Meters: Poor -> Fair
40, 30 Meters: Fair-> Fair To Good
20, 17, 15 Meters: Good -> Fair To Poor
12, 10 Meters: Poor To Fair -> Poor
FORECASTED SOUTHERN HEMISPHERE GLOBAL HF CONDITIONS BY BAND-
BAND: DAY -> NIGHT
80, 60 Meters: Poor To Fair -> Good
40, 30 Meters: Fair -> Good
20, 17, 15 Meters: Good -> Good
12, 10 Meters: Fair To Good -> Poor
HF Propagation Forecast Scale-
Excellent S9+1 Or Better
Good S7-S9
Fair S4-S6
Poor S1-S3
None S0
FORECASTED NORTHERN HEMISPHERE GLOBAL HF CONDITIONS BY LATITUDE-
Low Latitude- Low Normal
Mid Latitude- Low Normal
High Latitude- Low Normal
FORECASTED SOUTHERN HEMISPHERE GLOBAL HF CONDITIONS BY LATITUDE-
Low Latitude- Low Normal
Mid Latitude- Low Normal
High Latitude- Low Normal
FORECASTED NORTHERN HEMISPHERE GREAT CIRCLE SHORT PATH 80, 60 METERS-
East -> West To 2000 Mi/3200 km- Fair To Good
West -> East To 2000 Mi/3200 km- Fair To Good
North -> South To 2000 Mi/3200 km- Fair To Good
South -> North To 2000 Mi/3200 km- Fair To Good
FORECASTED SOUTHERN HEMISPHERE GREAT CIRCLE SHORT PATH 80, 60 METERS-
East -> West To 2000 Mi/3200 km- Good
West -> East To 2000 Mi/3200 km- Good
South -> North To 2000 Mi/3200 km- Good
North -> South To 2000 Mi/3200 km- Good
FORECASTED NORTHERN HEMISPHERE GREAT CIRCLE SHORT PATH 40, 30 METERS-
East -> West To 2000 Mi/3200 km- Fair To Good
West -> East To 2000 Mi/3200 km- Fair To Good
North -> South To 2000 Mi/3200 km- Fair To Good
South -> North To 2000 Mi/3200 km- Fair To Good
FORECASTED SOUTHERN HEMISPHERE GREAT CIRCLE SHORT PATH 40, 30 METERS-
East -> West To 2000 Mi/3200 km- Good
West -> East To 2000 Mi/3200 km- Good
South -> North To 2000 Mi/3200 km- Good
North -> South To 2000 Mi/3200 km- Good
FORECASTED NORTHERN HEMISPHERE GREAT CIRCLE SHORT PATH 20, 17, 15 METERS-
East -> West To 2000 Mi/3200 km- Fair To Good
West -> East To 2000 Mi/3200 km- Fair To Good
North -> South To 2000 Mi/3200 km- Fair To Good
South -> North To 2000 Mi/3200 km- Fair To Good
FORECASTED SOUTHERN HEMISPHERE GREAT CIRCLE SHORT PATH 20, 17, 15 METERS-
East -> West To 2000 Mi/3200 km- Good
West -> East To 2000 Mi/3200 km- Good
South -> North To 2000 Mi/3200 km- Good
North -> South To 2000 Mi/3200 km- Good
FORECASTED NORTHERN HEMISPHERE GREAT CIRCLE SHORT PATH 12, 10 METERS-
East -> West To 2000 Mi/3200 km- Poor To Fair
West -> East To 2000 Mi/3200 km- Poor To Fair
North -> South To 2000 Mi/3200 km- Poor To Fair
South -> North To 2000 Mi/3200 km- Poor To Fair
FORECASTED SOUTHERN HEMISPHERE GREAT CIRCLE SHORT PATH 12, 10 METERS-
East -> West To 2000 Mi/3200 km- Fair To Good
West -> East To 2000 Mi/3200 km- Fair To Good
South -> North To 2000 Mi/3200 km- Fair To Good
North -> South To 2000 Mi/3200 km- Fair To Good
Note!!! At times propagation conditions on 10 meters will be Good, via the
less predictable Sporadic E (Es) and trans-equatorial (TE) propagation modes
which involve the F2/3 layer.
HF Propagation Forecast Scale-
Excellent S9+1 Or Better
Good S7-S9
Fair S4-S6
Poor S1-S3
None S0
FORECASTED NORTHERN HEMISPHERE GREAT CIRCLE VIA LONG PATH-
80, 60 meters
(TA) Trans Atlantic, (TI) Trans Indian, (TP) Trans Pacific and cross
Equatorial propagation conditions greater than
2000 mi/3200 km.
Low Latitude- Fair To Good
Mid Latitude- Fair To Good
High Latitude- Fair To Good
FORECASTED SOUTHERN HEMISPHERE GREAT CIRCLE VIA LONG PATH-
80, 60 meters
(TA) Trans Atlantic, (TI) Trans Indian, (TP) Trans Pacific propagation
conditions greater than 2000 mi/3200 km.
Low Latitude- Good
Mid Latitude- Good
High Latitude- Good
FORECASTED NORTHERN HEMISPHERE GREAT CIRCLE VIA LONG PATH-
40, 30 meters
(TA) Trans Atlantic, (TI) Trans Indian, (TP) Trans Pacific and cross
Equatorial propagation conditions greater than
2000 mi/3200 km.
Low Latitude- Fair To Good
Mid Latitude- Fair To Good
High Latitude- Fair To Good
FORECASTED SOUTHERN HEMISPHERE GREAT CIRCLE VIA LONG PATH-
40, 30 meters
(TA) Trans Atlantic, (TI) Trans Indian, (TP) Trans Pacific propagation
conditions greater than 2000 mi/3200 km.
Low Latitude- Good
Mid Latitude- Good
High Latitude- Good
HF Propagation Forecast Scale-
Excellent S9+1 Or Better
Good S7-S9
Fair S4-S6
Poor S1-S3
None S0
FORECASTED NORTHERN HEMISPHERE GREAT CIRCLE VIA LONG PATH-
20, 17, 15 meters
(TA) Trans Atlantic, (TI) Trans Indian, (TP) Trans Pacific and cross
Equatorial propagation conditions greater than
2000 mi/3200 km.
Low Latitude Fair To Good
Mid Latitude- Fair To Good
High Latitude- Fair To Good
FORECASTED SOUTHERN HEMISPHERE GREAT CIRCLE VIA LONG PATH-
20, 17, 15 meters
(TA) Trans Atlantic, (TI) Trans Indian, (TP) Trans Pacific and cross
Equatorial propagation conditions greater than
2000 mi/3200 km.
Low latitude- Good
Mid Latitude- Good
High latitude- Good
FORECASTED NORTHERN HEMISPHERE GREAT CIRCLE VIA LONG PATH-
12, 10 meters
(TA) Trans Atlantic, (TI) Trans Indian, (TP) Trans Pacific and cross
Equatorial propagation conditions greater than
2000 mi/3200 km.
Low Latitude- Poor To Fair
Mid Latitude- Poor To Fair
High Latitude- Poor To Fair
FORECASTED SOUTHERN HEMISPHERE GREAT CIRCLE VIA LONG PATH-
12, 10 meters
(TA) Trans Atlantic, (TI) Trans Indian, (TP) Trans Pacific and cross
Equatorial propagation conditions greater than
2000 mi/3200 km.
Low Latitude- Fair To Good
Mid Latitude- Fair To Good
High Latitude- Fair To Good
Note!!! At times propagation conditions on 10 meters will be Good, via the
less predictable Sporadic E (Es) and trans-equatorial (TE) propagation modes
which involve the F2/3 layer.
Magnetic Equator-
Low- 0-25 degrees
Mid- 25-60 degrees
High- 60-90 degrees
http://www.wcflunatall.com/geomagneticequator.gif
HF Propagation Forecast Scale-
Excellent S9+1 Or Better
Good S7-S9
Fair S4-S6
Poor S1-S3
None S0
GLOBAL 50000-54000 KC (6 METERS) PROPAGATION MODES EXPECTED FORECAST-
F2- None
Sporadic E (Es)- Yes, northern hemisphere Es season is underway
Aurora E High Latitude- Yes
Aurora E Mid Latitude- No
Troposphere Ducting- Yes
Trans Equatorial (TE) F2/F3- Yes
Meteor Scatter- No, excluding random meteors, lightning bolt plasma
channels, space junk and alien spacecraft
Meter Band Equivalents
Ham SWL
160 90
80 75
60 60
40 49, 41
30 31, 25
20 22, 19
17 16, 15
15 13
12, 10 11
FORECASTED GLOBAL LIGHTNING NOISE (QRN)-
Northern hemisphere low latitude regions can expect VERY HIGH thunderstorm
lightning induced QRN tied to summer season
proximity to the Inter-Tropical Convergence Zone (ITCZ) and tropical warm
core low pressure systems.
Northern hemisphere mid latitude regions can expect HIGH TO VERY HIGH
thunderstorm lightning induced QRN tied to summer
season cold/warm/occluded fronts and associated extra-tropical cold core low
pressure systems, as well as tropical warm core low pressure systems.
Northern hemisphere high latitude regions can expect HIGH thunderstorm
lightning induced QRN tied to summer
season cold/warm/occluded fronts and associated extra-tropical cold core low
pressure systems.
Southern hemisphere low latitude regions can expect HIGH thunderstorm
lightning induced QRN tied to winter season proximity
to the Inter-Tropical Convergence Zone (ITCZ) as well as cold/warm/occluded
fronts and associated extra-tropical cold core low
pressure systems.
Southern hemisphere mid latitude regions can expect MODERATE thunderstorm
lightning induced QRN tied to winter
season cold/warm/occluded fronts and associated extra-tropical cold core low
pressure systems.
Southern hemisphere high latitude regions can expect LOW thunderstorm
lightning induced QRN tied to winter
season cold/warm/occluded fronts and associated extra-tropical cold core low
pressure systems.
Lightning Induced Noise (QRN) Forecast Scale-
Very High >+1 db Over S9
High- S7-9
Moderate- S4-6
Low- S1-3
None- S0
Note! I use error prone RAW public domain data from the NOAA Space
Environment Center, as well as other U.S. government organizations, to
produce my radiowave propagation forecast. This data is gathered and made
public by the U.S. Government using taxpayer $$$. However the propagation
forecast that I produce from the RAW public domain data is my personal
intellectual property. Therefore this propagation forecast contained herein
is copyrighted © 1988-2012 by Thomas F. Giella, NZ4O. Reproduction of and
distribution of the propagation forecast herein is allowed without advanced
permission as long as proper credit is given.
Also space weather forecasting is still an inexact science. The forecasts
are not official but for hobby related purposes only and are subject to
human error and acts of God, therefore no guarantee or warranty implied.
73 & GUD DX,
Thomas F. Giella, NZ4O
Lakeland, FL, USA
thomasfgiella at tampabay.rr.com
NZ4O Amateur & SWL Radio Autobiography: http://www.nz4o.com
NZ4O MF/HF/6M (600-6 Meters) Radiowave Propagation Forecast:
http://www.solarcycle24.org
Harmful Man Induced (Anthropogenic) Climate Change (Global Warming) Refuted:
http://www.globalwarminglie.org
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