There is a system coming ashore on the West Coast of North America I have been watching for a few days.

October 16, 2011
2330z
UNISYS North and West Water Vapor Satellite (click title to entry for 12 hour loop - thank you)

I was worse in intensity while at sea.  The system appeared to be a huge 'roll cloud.'  But, as it has approached the warmer continent it appears to be pushing the current 'straight winds' across the nation out of its dominance.  I believe it will yield more of the same winds as this system.  With straight wind systems it is always the 'endurance' of the winds that does the most damage.  I thought it was worth noting.

October 12, 2011
2316gmt
Pacific Ocean Satellite


When the system that is now off the West Coast of NA was over Alaska (the dark orange wind mass) it produced some stiff winds and gale warnings.  The appearance of the 'roll cloud' appearance sustained for some time after this image was snapped.  The second 'air mass' in this image is the current wind system across the USA today.  

October 13, 2011
1030:01z
UNISYS North and West Water Vapor Satellite

The more intense appearing air mass is seen in the very left upper corner over east Alaska.  It started to dissipate from its 'roll cloud' characteristics, but, was simply moving into position to follow the current system along the same path.

October 13, 2011
0816 gmt
Pacific Ocean Satellite


The noted unusual characteristic is starting to dissipate, but, as I had stated before it sustained that dynamic for some time.  The air density may have shifted as it came into lower latitudes, but, I am still concerned sustaining straight line winds may prove to be a problem.


This next system may prove to be strong than the first as well.

October 13, 2011
0000 gmt
WSI GOES West Satellite