[IRCA] Bandscan Anomaly

[bill kral <jwkral@xxxxxxxx>]

01/27/12--1800 to 1930 PST--Victoria BC.
A quick bandscan revealed zero skip at 6PM PST on freqs from 540 to 1000 Khz while skip on freqs from 1000 to 1700
was normal or above pre LSS and post LSS. LSS today was 5:56 PM PST.  In the lower end of the band all of the high
all of the high powers on the clears were totally absent or near zero. Even KGO SF was faint at this time. Through the hour as the sky got dark the lower band was still almost dead with the odd signal beginning to appear on the higher freqs in the bottom half of the band. At 7PM 540 still had no signal. At 730 a faint signal from Sk is struggling to appear. After 7PM the clears were slowly catching up to their normal signal strength. 
At the upper end things were different and better than normal. Portland stations and others at that distance were booming at 6PM already.The Californians were good and most notable was XEPE 1700 in Tijuana Mex with a day signal readable until 6:11 when it disappeared but returned 5 minutes later presumably on night power slowly regaining its previous signal strength.
1310 brought in a super strong signal briefly from possibly either KIQQ Barstow Ca or some other unID with SS .
I wonder what caused this abnormal anomaly tonight. 
Bill in BC
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