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Thursday, June 2, 2011

EF-what?? The Answer....Tomorrow.

The National Weather Service is still surveying the damage in Massachusettes. There is so much to look at. Not only do they have to determine what damage was caused by a tornado and what damage was caused by gusty straight line winds, but they also have to classify the tornado damage according to the Enhanced Fujita scale.

I just got this e-mail from the weather service:

"Hi all,

FYI... We have 7 NWS Meteorologists on 2 surveys and it will be quite some time for them to complete them. We expect to have a face-to-face debriefing tomorrow at our office and our plan is to get a PNS out that explains everything sometime tomorrow afternoon. Sorry it can't be today. A lot to determine. Thanks for your patience...

-- Glenn"


These pics are not from MA. But I wanted to show you what the NWS will look for to determine what caused the damage from town to town.

Tornadoes will leave a path of damage in different directions within a given area.



Straight line damage will show debris falling in the same direction over a given area.


The Fujita scale is no longer used to estimate tornado damage. Now we use the EF scale which takes the structural integrity of buildings and objects while making wind estimates.

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