[HCDX] KN4LF Daily HF/MF Radio Propagation Outlook #2003-02
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[HCDX] KN4LF Daily HF/MF Radio Propagation Outlook #2003-02
KN4LF Daily HF/MF Radio Propagation Outlook #2003-02
http://www.kn4lf.com/kn4lf5.htm
Date Format is YY/MM/DD
Published 1400 UTC 03/08/23
-----
Past 24 Hour Period Geomagnetic Indices:
Coronal Hole #052 has been in a geo-effective (Earth facing) position since
03/08/21, the source of our ongoing geo-magnetic storm and will continue to do so
through 03/08/23.
The Ap index has been at major geomagnetic levels, with a peak at 70.
A previous 24 hour Ap index under 10 is good, under 7 for 72 hours
consecutively is best for good high and latitude MF propagation conditions.
The Kp index has been at strong geomagnetic levels, with a peak at 7.
A previous 3 hour Kp index under 3 is good for mid latitude paths, under 2
for high latitude paths, 0-1 for 72 hours consecutively is best.
-----
Global HF 3000-30000 KC Propagation Conditions Expected:
Low Latitude- Good
Mid Latitude- Good
High Latitude-Poor To Fair
-----
Global MF 300-3000 KC Propagation Conditions Expected:
Expect poor then becoming fair "Northern Hemisphere" domestic propagation
conditions on east-west paths.
Expect poor domestic conditions on north "TO" south paths in the "Northern
Hemisphere" out to approximately 1100 miles.
Expect good domestic conditions on south "TO" north paths in the "Northern
Hemisphere" out to approximately 1100 miles.
Expect fair then becoming good "Southern Hemisphere" domestic propagation
conditions on east-west paths.
Expect good domestic conditions on north "TO" south paths in the "Southern
Hemisphere" out to approximately 1100 miles+
Expect good poor then becoming fair conditions on south "TO" north paths in
the "Southern Hemisphere" out to approximately 1100 miles.
"High latitude" Northern Hemisphere (TA) Trans Atlantic, (TI) Trans Indian,
(TP) Trans Pacific and cross equatorial propagation conditions in excess of
approximately 3200 miles should be poor.
"High latitude" Southern Hemisphere (TA) Trans Atlantic, (TI) Trans Indian,
(TP) Trans Pacific and cross equatorial propagation conditions in excess of
approximately 3200 miles should be poor.
"Mid latitude" Northern Hemisphere (TA) Trans Atlantic, (TI) Trans Indian,
(TP) Trans Pacific and cross equatorial propagation conditions in excess of
approximately 3200 miles should be fair.
"Mid latitude" Southern Hemisphere (TA) Trans Atlantic, (TI) Trans Indian,
(TP) Trans Pacific and cross equatorial propagation conditions in excess of
approximately 3200 miles should be fair.
"Low latitude" Northern Hemisphere (TA) Trans Atlantic, (TI) Trans Indian,
(TP) Trans Pacific propagation conditions in excess of approximately 3200
miles should be good.
"Low latitude" Southern Hemisphere (TA) Trans Atlantic, (TI) Trans Indian,
(TP) Trans Pacific propagation conditions in excess of approximately 3200
miles should be good.
-----
Noise (QRN) OUTLOOK-
GLOBAL SATELLITE DERIVED LIGHTNING STRIKE DATA
(See Where Your QRN Is Coming From)
http://aviationweather.gov/gcd
During the 24 hour outlook period there will be "high" lightning induced QRN
levels in low latitude areas of the Northern Hemisphere due to the proximity
of the Inter Tropical Convergence Zone (ITCZ) and tropical cyclones.
Northern hemisphere mid latitude regions can expect "moderate to high"
lightning induced QRN tied to summer season thunderstorms,
cold/warm/occluded fronts and associated extra-tropical cold core low
pressure systems and tropical cyclones.
Northern hemisphere high latitude regions can expect "moderate" lightning
induced QRN tied to summer season thunderstorms, cold/warm/occluded fronts
and associated extra-tropical cold core low pressure systems.
-----
During the outlook period there will be "high" lightning induced QRN levels
in low latitude areas of the Southern Hemisphere due to the proximity of the
Inter Tropical Convergence Zone (ITCZ) and tropical cyclones.
Southern hemisphere mid latitude regions can expect "moderate" lightning
induced QRN, tied to winter season thunderstorms cold/warm/occluded fronts
and associated extra-tropical cold core low pressure systems.
Southern hemisphere high latitude regions can expect "low" lightning induced
QRN tied to winter season thunderstorms, cold/warm/occluded fronts and
associated extra-tropical cold core low pressure systems.
73 & GUD DX,
Thomas F. Giella, KN4LF
Plant City, FL, USA
Florida Space & Atmospheric Weather Institute
http://www.kn4lf.com/fsawi.htm
KN4LF Daily Solar Space Weather & Geomagnetic Data Archive
http://www.kn4lf.com/kn4lf5.htm
KN4LF HF/MF Radio Propagation Theory Notes
http://www.kn4lf.com/kn4lf8.htm
http://www.kn4lf.com/kn4lf5.htm
Date Format is YY/MM/DD
Published 1400 UTC 03/08/23
-----
Past 24 Hour Period Geomagnetic Indices:
Coronal Hole #052 has been in a geo-effective (Earth facing) position since
03/08/21, the source of our ongoing geo-magnetic storm and will continue to do so
through 03/08/23.
The Ap index has been at major geomagnetic levels, with a peak at 70.
A previous 24 hour Ap index under 10 is good, under 7 for 72 hours
consecutively is best for good high and latitude MF propagation conditions.
The Kp index has been at strong geomagnetic levels, with a peak at 7.
A previous 3 hour Kp index under 3 is good for mid latitude paths, under 2
for high latitude paths, 0-1 for 72 hours consecutively is best.
-----
Global HF 3000-30000 KC Propagation Conditions Expected:
Low Latitude- Good
Mid Latitude- Good
High Latitude-Poor To Fair
-----
Global MF 300-3000 KC Propagation Conditions Expected:
Expect poor then becoming fair "Northern Hemisphere" domestic propagation
conditions on east-west paths.
Expect poor domestic conditions on north "TO" south paths in the "Northern
Hemisphere" out to approximately 1100 miles.
Expect good domestic conditions on south "TO" north paths in the "Northern
Hemisphere" out to approximately 1100 miles.
Expect fair then becoming good "Southern Hemisphere" domestic propagation
conditions on east-west paths.
Expect good domestic conditions on north "TO" south paths in the "Southern
Hemisphere" out to approximately 1100 miles+
Expect good poor then becoming fair conditions on south "TO" north paths in
the "Southern Hemisphere" out to approximately 1100 miles.
"High latitude" Northern Hemisphere (TA) Trans Atlantic, (TI) Trans Indian,
(TP) Trans Pacific and cross equatorial propagation conditions in excess of
approximately 3200 miles should be poor.
"High latitude" Southern Hemisphere (TA) Trans Atlantic, (TI) Trans Indian,
(TP) Trans Pacific and cross equatorial propagation conditions in excess of
approximately 3200 miles should be poor.
"Mid latitude" Northern Hemisphere (TA) Trans Atlantic, (TI) Trans Indian,
(TP) Trans Pacific and cross equatorial propagation conditions in excess of
approximately 3200 miles should be fair.
"Mid latitude" Southern Hemisphere (TA) Trans Atlantic, (TI) Trans Indian,
(TP) Trans Pacific and cross equatorial propagation conditions in excess of
approximately 3200 miles should be fair.
"Low latitude" Northern Hemisphere (TA) Trans Atlantic, (TI) Trans Indian,
(TP) Trans Pacific propagation conditions in excess of approximately 3200
miles should be good.
"Low latitude" Southern Hemisphere (TA) Trans Atlantic, (TI) Trans Indian,
(TP) Trans Pacific propagation conditions in excess of approximately 3200
miles should be good.
-----
Noise (QRN) OUTLOOK-
GLOBAL SATELLITE DERIVED LIGHTNING STRIKE DATA
(See Where Your QRN Is Coming From)
http://aviationweather.gov/gcd
During the 24 hour outlook period there will be "high" lightning induced QRN
levels in low latitude areas of the Northern Hemisphere due to the proximity
of the Inter Tropical Convergence Zone (ITCZ) and tropical cyclones.
Northern hemisphere mid latitude regions can expect "moderate to high"
lightning induced QRN tied to summer season thunderstorms,
cold/warm/occluded fronts and associated extra-tropical cold core low
pressure systems and tropical cyclones.
Northern hemisphere high latitude regions can expect "moderate" lightning
induced QRN tied to summer season thunderstorms, cold/warm/occluded fronts
and associated extra-tropical cold core low pressure systems.
-----
During the outlook period there will be "high" lightning induced QRN levels
in low latitude areas of the Southern Hemisphere due to the proximity of the
Inter Tropical Convergence Zone (ITCZ) and tropical cyclones.
Southern hemisphere mid latitude regions can expect "moderate" lightning
induced QRN, tied to winter season thunderstorms cold/warm/occluded fronts
and associated extra-tropical cold core low pressure systems.
Southern hemisphere high latitude regions can expect "low" lightning induced
QRN tied to winter season thunderstorms, cold/warm/occluded fronts and
associated extra-tropical cold core low pressure systems.
73 & GUD DX,
Thomas F. Giella, KN4LF
Plant City, FL, USA
Florida Space & Atmospheric Weather Institute
http://www.kn4lf.com/fsawi.htm
KN4LF Daily Solar Space Weather & Geomagnetic Data Archive
http://www.kn4lf.com/kn4lf5.htm
KN4LF HF/MF Radio Propagation Theory Notes
http://www.kn4lf.com/kn4lf8.htm
---
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