[NZ4O Spaceweather] NZ4O "Daily" Condensed HF/6M Radiowave Propagation Forecast

Fri May 25 07:15:35 PDT 2012

Note!!! The NZ4O "Daily" Condensed HF/6M Radiowave Propagation Forecast will 
not be published on Saturday through Monday May 26-28, 2012. It will return 
on Tuesday May 29, 2012.

The NZ4O "Daily" Condensed HF/6M Radiowave Propagation Forecast has been 
published on Friday May 25, 2012 at 1400 UTC and is valid for the next 24 
hours.
This daily condensed HF/6M radiowave propagation forecast can also be found 
at http://www.solarcycle24.org , 
http://www.facebook.com/pages/SolarCycle24org/139198369462931 and 
http://lists.contesting.com/mailman/listinfo/spaceweather .

FORECASTED NORTHERN HEMISPHERE GLOBAL HF CONDITIONS BY BAND-

BAND:                         DAY -> NIGHT

80, 60, 40, 30 Meters: Poor -> Fair To Good

20, 17, 15 Meters: Good -> Good

12, 10 Meters: Fair -> Poor

FORECASTED SOUTHERN HEMISPHERE GLOBAL HF CONDITIONS BY BAND-

BAND:                         DAY -> NIGHT

80, 60, 40, 30 Meters: Fair -> Good

20, 17, 15 Meters: Good -> Good

12, 10 Meters: Fair To Good -> Poor

FORECASTED NORTHERN HEMISPHERE GLOBAL HF CONDITIONS BY LATITUDE-

Low Latitude- Normal

Mid Latitude- Normal

High Latitude- Normal

FORECASTED SOUTHERN HEMISPHERE GLOBAL HF CONDITIONS BY LATITUDE-

Low Latitude- Normal

Mid Latitude- Normal

High Latitude- Normal

FORECASTED NORTHERN HEMISPHERE SHORT PATH 80, 60, 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 SHORT PATH 80, 60, 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 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 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 SHORT PATH 12, 10 METERS-

East -> West To 2000 Mi/3200 km- Fair

West -> East To 2000 Mi/3200 km- Fair

North -> South To 2000 Mi/3200 km- Fair

South -> North To 2000 Mi/3200 km- Fair

FORECASTED SOUTHERN HEMISPHERE SHORT PATH 12, 10 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 FROM THE NORTHERN HEMISPHERE LONG PATH-

 (TA) Trans Atlantic, (TI) Trans Indian, (TP) Trans Pacific and cross 
Equatorial HF propagation conditions greater than

2000 mi/3200 km will be FAIR TO GOOD on 80, 60, 40 and 30 meters, FAIR TO 
GOOD on 20, 17, 15 and FAIR on 12 and 10 meters.

FORECASTED FROM THE SOUTHERN HEMISPHERE LONG PATH-

(TA) Trans Atlantic, (TI) Trans Indian, (TP) Trans Pacific and cross 
Equatorial HF propagation conditions greater than

2000 mi/3200 km will be GOOD on 80, 60, 40 and 30 meters, GOOD on 20, 17, 15 
and GOOD on 12 and 10 meters.

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
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 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.

Northern hemisphere mid latitude regions can expect HIGH TO VERY HIGH 
thunderstorm lightning induced QRN tied to winter

season cold/warm/occluded fronts and associated extra-tropical cold core low 
pressure systems.

Northern hemisphere high latitude regions can expect MODERATE TO HIGH 
thunderstorm lightning induced QRN tied to winter

season cold/warm/occluded fronts and associated extra-tropical cold core low 
pressure systems.

Southern 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.

Southern 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.

Southern hemisphere high latitude regions can expect MODERATE TO HIGH 
thunderstorm lightning induced QRN tied to summer

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

Standard Disclaimer-

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 forecasts. 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 Radiowave Propagation Forecast: http://www.solarcycle24.org
Harmful Man Induced (Anthropogenic) Climate Change (Global Warming) Refuted: 
http://www.globalwarminglie.org

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