View Single Post
Old 11-17-2009, 10:06 AM
stompk's Avatar
stompk stompk is offline
I work for God
Join Date: Jan 2008
Location: In the valley
Posts: 613
Default Re: Contrails cannot form into clouds (proof!)

This seeding modified the mid and low level temperature profiles, glaciated the low level clouds, and produced light snow for several hours in the foothills and northwest piedmont. Snowfall amounts were not large in RAH's CWFA, ranging from to 1 inch in the northwest piedmont, and were overshadowed by the larger scale icing event which evolved shortly thereafter. It is clear, however, that the seeder-feeder mechanism alone could easily produce an "advisory-scale" event, consisting of either frozen or freezing precipitation.
The feeder-seeder mechanism can be diagnosed by carefully examining the entire depth of the soundings. Very small changes in the vertical temperature profile can profoundly affect the p-type, and models often cannot resolve these details
Seeder - Feeder Mechanism during the February 12, 2001
Perform random acts of kindness on strangers who are in need.
Reply With Quote