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Derecho Risk From Chicago to Columbus
accuweather.com ^ | 6/12/13 | Anthony Sagliani

Posted on 06/12/2013 3:22:19 AM PDT by Clint N. Suhks

Ingredients are coming together across parts of the Midwest and Ohio Valley that could potentially trigger a derecho on Wednesday into Wednesday night.

While it isn't exactly a certainty whether or not a derecho will form, some of the cities and towns most at risk include Chicago, Ill.; Columbus, Ohio; Fort Wayne, Ind.; Aurora, Ill.; Dayton, Ohio and Davenport, Iowa, to name a few.

Strictly speaking, a derecho is a widespread, long-lived wind storm that is associated with a band of rapidly moving showers or thunderstorms. These showers and thunderstorms produce wind damage over a large swath of land.

While wind gusts form derechos can sometimes reach speeds over 80 or even 100 mph, the vast majority of observed wind reports are usually between 60 and 70 mph.

Wind speeds of 60 or 70 mph can uproot trees, snap off large branches and bring down utility poles and wires. Due to the widespread nature of these wind gusts, power outages can also be far-reaching.

Additionally, these kinds of wind speeds can cause minor damage to structures, including roofs on houses, and they can easily blow around any unsecured objects left outside.

Even if a derecho does not evolve on Wednesday and Wednesday night, powerful thunderstorms will still be quite numerous across much of Illinois, Indiana and Ohio.

Thunderstorms will begin near Davenport, Iowa and northern Illinois. The thunderstorms that develop here will have the ability to take on some rotation, and a few tornadoes are possible, especially in and around Davenport, Rockford, Ill.; Sterling Ill.; Ottawa, Ill. and Chicago.

The thunderstorms will then begin to congeal into a bowing, or backward 'C' shaped line as they reach northern Indiana or Lake Michigan. How much of a bowing shape the thunderstorms can take on will play a role in determining how much wind the storms can produce, and ultimately, whether or not a "derecho" fully evolves.

The worst of the storms will likely be in the afternoon across western Iowa into northern Illinois and Indiana. In places such as Ohio, the most dangerous storms may hold out until the evening hours or even after dark. Still, there could still be a stray thunderstorm around even before the main line arrives.

If you will be out and about on Wednesday or have any plans Wednesday evening or night, you will need to pay special attention to the weather as this could be a particularly dangerous situation. Once thunderstorms develop, they will strengthen quickly, and dangerous conditions could follow soon after.

One added concern across the region will be very heavy, potentially flooding rain. This storm system will have the ability to produce a large area of 2-3 inches from Chicago into Detroit, Cleveland and Pittsburgh. Rain of this magnitude, on top of already saturated soil, will cause flash flooding and the possibility of renewed flooding or larger waterways.

Current technology has advanced enough over recent years to provide ample alert of the potential for severe weather and the approach of localized severe storms. Be sure to understand the difference between a watch and a warning. A watch means that an area is being monitored for dangerous weather. A warning means that dangerous weather is imminent. When a warning is issued, there may be too little time to travel across town or across a county to escape the storm. The time to have a plan of action and move to the general vicinity of a storm shelter or safe area is when a watch is issued.

Keep in mind that lightning is one of Mother Nature's most dangerous killers. If you can hear thunder, you are close enough to the storm to be struck by lightning, even if the sun is still shining.


TOPICS: Miscellaneous; US: Illinois; US: Indiana; US: Iowa; US: Michigan; US: Ohio; US: Pennsylvania; US: West Virginia; US: Wisconsin
KEYWORDS: derecho; flood; flooding; tornado
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To: Clint N. Suhks

MAXWELL SMART: “Oh no, Chief! - not Derecho! Anything but Derecho! We’re not prepared for Derecho! Derecho will mean total disaster! If Derecho hits, we’re doomed! Just one question, Chief: What is Derecho?”


41 posted on 06/12/2013 7:50:41 AM PDT by GreenHornet
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To: Clint N. Suhks

Heading for Washington...again.


42 posted on 06/12/2013 9:01:18 AM PDT by who knows what evil? (G-d saved more animals than people on the ark...www.siameserescue.org.)
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To: momincombatboots
If the dericho comes this time, now that we have some warning, I'll be more prepared than last. Though I got through that one OK in my narrow hollow, I did have to dip into the tank of my car to keep the generator running until the local gas stations were up, loaded and running. I felt for the snowbirds coming up I79. Gas stations, restaurants, grocery stores and motels closed for miles in all directions of the US 33 interchange. Those folks were just stranded.
That 2 foot of heavy, wet snow from Sandy however did a bit of damage with limbs coming down on the roof and gutters. I was prepared for hurricane type rain, NOT a blizzard. Had to shovel a path of more than 150’ over my lawn so I could haul wood for heat. Had I known it was gonna snow like that, there would have been more wood at the house. lol
All through the county there is STILL plenty of damage from Sandy to be seen...still plenty of widow-makers over and off the roads. I still have four brush piles from the tops of downed trees on the other side of the creek that runs through my property. At least those trees gave me a start on next winter's wood supply.:)
43 posted on 06/12/2013 9:41:51 AM PDT by Roccus
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To: Clint N. Suhks

If’n I were to die from flyin garden gnomes and that made the obit...I’d haunt the writer


44 posted on 06/12/2013 12:21:18 PM PDT by advertising guy (golf in june in Phoenix ? it's so dry, our gators use Gold Bond)
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To: fulltlt
What is the Waffle House rating of a Derecho?

Five Bert's


45 posted on 06/12/2013 12:32:18 PM PDT by COBOL2Java (Fighting Obama without Boehner & McConnell is like going deer hunting without your accordion)
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To: Ruy Dias de Bivar

and that storm in central fla caused by that white hispanic


46 posted on 06/12/2013 12:33:12 PM PDT by advertising guy (golf in june in Phoenix ? it's so dry, our gators use Gold Bond)
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To: advertising guy
and that storm in central fla caused by that white hispanic

Rubio?

47 posted on 06/12/2013 12:33:54 PM PDT by COBOL2Java (Fighting Obama without Boehner & McConnell is like going deer hunting without your accordion)
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To: COBOL2Java

Boom Boom Zimmerman


48 posted on 06/12/2013 12:35:19 PM PDT by advertising guy (golf in june in Phoenix ? it's so dry, our gators use Gold Bond)
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To: rightwingintelligentsia

Ever wonder why I watch the weather warning so closely? Here’s what we do to stay ahead of the storm for you:

1. Make sure our schedules are printed out for the next 72 hours in case of loss of power.

2. Send emails to all returning clients to be sure they have our mobile numbers to text any flight/travel delays to us.

3. Pre-load vehicles with an extra pet carrier in the event your pet needs to be evacuated post storm(s).

4. Confirm alternate pet kenneling locations for both cats or dogs

5. Contact back-up sitters to be prepared to assist if needed.

Never, never underestimate the value of a good pet sitting company....still quiet here, but time for me to get moving again for a doggy daycare pick-up, an evening feed & walk weather permitting, and a visit to an epileptic cat for her meds.... plus a last stop to top off gas.


49 posted on 06/12/2013 12:42:58 PM PDT by EBH (The government that sits in Washington, D.C. is not the United States government.)
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To: advertising guy

I thought it was good advice. She wouldn’t want her garden gnomes to go on walkabout and lose their way home.

Come to think of it she better put the pink flamingoes in their coop.


50 posted on 06/12/2013 2:34:43 PM PDT by Clint N. Suhks
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To: COBOL2Java
https://en.wikipedia.org/wiki/Waffle_House_Index

"The Waffle House Index is an informal metric used by the Federal Emergency Management Agency (FEMA) to determine the impact of a storm and the likely scale of assistance required for disaster recovery. The measure is based on the reputation of the Waffle House restaurant chain for staying open during extreme weather and for reopening quickly, albeit sometimes with a limited menu, after very severe weather events such as tornados or hurricanes. The term was coined by FEMA Administrator Craig Fugate in May 2011, following the Joplin tornado; the two Waffle House restaurants in Joplin remained open after the EF5 multiple-vortex tornado struck the city on May 22.[1][2] According to Fugate, "If you get there and the Waffle House is closed? That’s really bad. That’s where you go to work."[3]

The Index has three levels, based on the extent of operations and service at the restaurant following a storm:[3]
Green: the restaurant is serving a full menu, indicating the restaurant has power and damage is limited.
Yellow: the restaurant is serving a limited menu, indicating there may be no power or only power from a generator or food supplies may be low.
Red: the restaurant is closed, indicating severe damage. "

51 posted on 06/12/2013 3:02:04 PM PDT by fulltlt
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To: ViLaLuz
"Derecho is a Spanish word. It’s yet another effort to make our language comply with political correctness. A few years ago there was an effort to rename wind storms as a “haboob”... A boob-headed idea that failed."

Exactly, I hate these new PC names for American weather events. I don't care what they call them elsewhere. I thought the "haboob" thing was ridiculous and so is this. Call things what they are, in English, and quit making up new names for everything! Morons. Now get back to WORK!

52 posted on 06/13/2013 12:04:56 AM PDT by Spitzensparkin1 (Arrest and deport all illegal aliens. Americans demand those jobs back! Hoorah, Arizona!)
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To: Spitzensparkin1

Next up... Hurricane Lafawnduh.


53 posted on 06/13/2013 4:47:45 AM PDT by ViLaLuz (2 Chronicles 7:14)
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To: ViLaLuz
Derecho Risk From Chicago to Columbus

Um....Never mind

Image Hosted by ImageShack.us
54 posted on 06/13/2013 7:19:42 AM PDT by cripplecreek (REMEMBER THE RIVER RAISIN!)
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