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Derechos (1 Viewer)


ARCC

Member
Messages
382
Location
Coosa county
Due to the fact of talking about Derechos I figured we could discuss this. In terms of Derechos, we know big ones such as the "Great Inland Hurricane", but I don't think the one that occurred early 4/27 is talked about enough. Not only did it create strong wind damage across the whole state, but it produced two strong EF3 tornadoes that were almost EF4 along with others.

It is the only Derechos to my knowledge that would have fulfilled requirements for High Risk in tornadoes. It also preceeded the worst tornado outbreak in the past 50 years. In truth was it ever classified as a derecho?

Any other thoughts?
 

akt1985

Member
Messages
461
Location
Madison, Alabama
I've always been mesmerized by the Derecho that hit Florida during the Blizzard of 1993. That has to be the farthest south a Derecho has traveled in the United States. A few hours after that Derecho hit, nor'easter like conditions hit the Big Bend region of Florida. The warm sector of the Blizzard of 1993 does not get mentioned much.
 

Peter Griffin

Member
Messages
16
Location
Newport, NC
I've always been mesmerized by the Derecho that hit Florida during the Blizzard of 1993. That has to be the farthest south a Derecho has traveled in the United States. A few hours after that Derecho hit, nor'easter like conditions hit the Big Bend region of Florida. The warm sector of the Blizzard of 1993 does not get mentioned much.
Yeah that Derecho streched all the way down to Cuba. Insanity.
 
Last edited:
Messages
398
Location
Niagara Falls, Ontario
Yeah that Derecho streched all the way down to Cuba. Insanity.
Yeah that definitely would be one for the history books. Another derecho that stands out to me is the April 4, 2011 derecho just in terms of its raw strength, apparently gusting to 132 mph.

I have to say though, one of the most fascinating of all would have to be the August 8, 2010 derecho in Estonia - a derecho that far north is not something many people were expecting.
 
Messages
398
Location
Niagara Falls, Ontario
I've done a fair bit of digging and from what I've been able to find here are the highest wind speeds ever recorded in derechos:

1. 2011 Midwest Derecho - July 11, 2011 - 132 mph

2. Corn Belt Derecho - June 29, 1998 - 123 mph

3. Omaha Derecho - June 27, 2008 - 119 mph

4. Sycaruse Labor Day Derecho - September 7, 1998 - 115 mph

5. Northeastern Ontario Derecho - July 17, 2006 - 111 mph

6. Memphis Summer Storm - July 22, 2003 - 108 mph

Most of these are well inside the Category 3 to Category 4 range on the Saffir-Simpson scale, and the severity of the wind damage aligns with the scale almost exactly, as well as with the fairly well with the Enhanced Fujita scale...what interests me is that we only begin to see inconsistencies between wind estimates on scales and the actual recorded winds in derechos, tornadoes, hurricanes etc. towards the higher end of the scales.
 

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