Use the W6EL Propagation Program to check your conditions.
The Solar Flux Index (SFI) is a gauge of solar particles and magnetic fields reaching our atmosphere. Higher numbers mean more solar wind is reaching the earth thus better propagation.
The K-Index (or Boulder K)is a gauge of geomagnetic activity relative to an assumed quiet-day curve for Boulder,Colorado. Falling numbers mean improving conditions and better propagation particularly in northern latitudes and areas where aurora activity can occur. (The further you are from Boulder,Colorado, the less exact this information will be.)
The A-index is simply an index of geomagnetic activity derived from a scaled average of the previous 24 hours K-index readings. Use this as a reference for general conditions on the bands. Lower A index means better propagation.
Solar Flux Indexes
SFI= 131 and estimated planetary A-index 5.
The estimated planetary K-index at 2100 UTC on 19 May was 1.
No space weather storms were observed for the past 24 hours.
No space weather storms are predicted for the next 24 hours.
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