Tuesday, July 24, 2012

It isn't easy to discern from this picture, but, from the torn branches the tree looks twisted.


A tree crashed through the roof of a home in Bridgeport this morning. No one was injured. (Chicago Fire Department photo / July 24, 2012)


It was probably a down blast similar to a brief tornado, if it wasn't actually a tornado. It was hot meeting cold. It occurred very spontaneously. It's the troposphere. It is unpredictable.


The airport was shutdown. Fine. It was a responsible decision. What happens to planes when struck with spontaneous weather events?
...The storm raced through (click title to entry - thank you) the northwest and north suburbs at around 55 mph, hitting downtown about 6:30 a.m. after hitting Kane and McHenry counties hard. Winds of 70 mph hit Naperville about 6:15 a.m. 61 mph hit Midway International Airport just after 6:30 , according to the National Weather Service.
A thunderstorm watch is in effect for Chicago-area counties until 9 a.m.
As of 7:30 a.m., about 175,000 ComEd customers had lost power, with that number likely to climb as storms continue to hit the area, a ComEd spokeswoman said....


If these are the clouds in a Chicago Sun Times report; these are heat transfer clouds. It is a familiar pattern to me.


Rippled appearance of clouds that extend in a single line for miles.


SUN-TIMES MEDIA WIRE 
July 24, 2012 7:08AM
The National Weather Service (click here) has issued a Severe Thunderstorm Watch Tuesday morning for the Chicago area.