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3/2-3/3 Damage Assessment Thread


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It might also just be the larger workload to get the PNS written up. Could be a couple reasons for it, but I think an increase in wind speed is definitely on the table.

I dont necessarily think it was an EF5 but it was way up there on the scale. That wording used by NWS in Louisville to describe the EF4 damage is very impressive.
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True, it seems like it went through some more populated areas in Clark county.

I just know that it is pretty common to not release any information until there is an accompanying PNS with more detailed information to explain the rating. Especially when they know that the final rating will garner a lot of media attention regardless of which side of 200 mph it falls.

I dont necessarily think it was an EF5 but it was way up there on the scale. That wording used by NWS in Louisville to describe the EF4 damage is very impressive.

From the damage I've seen, I think somewhere between 180 and 190 mph looks right.

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I just know that it is pretty common to not release any information until there is an accompanying PNS with more detailed information to explain the rating. Especially when they know that the final rating will garner a lot of media attention regardless of which side of 200 mph it falls.

From the damage I've seen, I think somewhere between 180 and 190 mph looks right.

I agree with you.

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Piecing together statements from JKL and RLX, it sounds like the West Liberty tornado was on the ground for 96mi.

Here is the PNS for that

PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE CHARLESTON WV

424 PM EST MON MAR 5 2012

...TORNADO CONFIRMED NEAR ALKOL IN LINCOLN COUNTY WEST VIRGINIA...

LOCATION...ALKOL IN EASTERN LINCOLN COUNTY WEST VIRGINIA

DATE...MARCH 2 2012

ESTIMATED TIME...715 PM EST

MAXIMUM EF-SCALE RATING...EF0

ESTIMATED MAXIMUM WIND SPEED...75 MPH

MAXIMUM PATH WIDTH...70 YARDS

PATH LENGTH...35 MILES FROM WEST VIRGINIA BORDER TO ALKOL

62 MILES FROM WESTERN LAWRENCE COUNTY KY TO ALKOL

BEGINNING LAT/LON...

ENDING LAT/LON...

* FATALITIES...0

* INJURIES...0

* THE INFORMATION IN THIS STATEMENT IS PRELIMINARY AND SUBJECT TO

CHANGE PENDING FINAL REVIEW OF THE EVENT(S) AND PUBLICATION IN

NWS STORM DATA.

...SUMMARY...

THE NATIONAL WEATHER SERVICE IN CHARLESTON WV HAS CONFIRMED A

TORNADO NEAR ALKOL IN EASTERN LINCOLN COUNTY WEST VIRGINIA ON

MARCH 2 2012.

THIS LOCATION WAS THE END OF A DAMAGE PATH OF THE TORNADO WHICH

STARTED NEAR WEST LIBERTY KENTUCKY. THIS WAS NOT A THIRD TORNADO

IN WEST VIRGINIA.

NUMEROUS TREES WERE BLOWN DOWN AND A FEW WERE ALSO BROKEN OFF

ABOVE THE GROUND. IN ADDITION...A MANUFACTURED HOME LOST PART OF

ITS ROOF AS WELL AS SUSTAINING OTHER DAMAGE.

THIS INFORMATION CAN ALSO BE FOUND ON OUR WEBSITE AT

WEATHER.GOV/RLX.

FOR REFERENCE...THE ENHANCED FUJITA SCALE CLASSIFIES TORNADOES

INTO THE FOLLOWING CATEGORIES:

EF0...WIND SPEEDS 65 TO 85 MPH.

EF1...WIND SPEEDS 86 TO 110 MPH.

EF2...WIND SPEEDS 111 TO 135 MPH.

EF3...WIND SPEEDS 136 TO 165 MPH.

EF4...WIND SPEEDS 166 TO 200 MPH.

EF5...WIND SPEEDS GREATER THAN 200 MPH.

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Did not see this posted from Marysville, before and after

I wish I could see what direction and how close the debris ended up. That could be simple case of the house being pushed off the foundation due to poor anchoring. I'm thinking that there is a pile of debris below the first floor level obscured by the hill the house is sitting on, just to the left of the foundation.

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PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE LOUISVILLE KY

558 PM EST MON MAR 05 2012

...A SECOND TORNADO WITH EF-1 DAMAGE CONFIRMED JUST SOUTH OF THE SOUTHERN INDIANA EF-4...

DAMAGE TYPE: TORNADO EF-1

DATE: MAR 02 2012

BEGIN TIME: 3:30 PM EST

END TIME: 3:36 PM EST

BEGIN POINT: 6 WSW HENRYVILLE

END POINT: 0.5 E HENRYVILLE

WIND SPEED: MAXIMUM 110 MPH

INJURIES: 0

FATALITIES: 0

NARRATIVE: PHOTOGRAPHS TAKEN DURING A CIVIL AIR PATROL FLIGHT CORROBORATE INTERVIEWS WITH RESIDENTS ALONG THE DAMAGE PATH INDICATE THAT THERE WERE INTERMITTENT TOUCHDOWNS OF A WEAKER TORNADO WITH THE SECOND SUPERCELL TO PASS OVER THE AREA FRIDAY AFTERNOON.

THE SECOND STORM, WHICH PUMMELED THE RECENTLY DEVASTATED AREA WITH HAIL UP TO THE SIZE OF SOFTBALLS, FOLLOWED NEARLY THE SAME PATH AS THE FIRST SUPERCELL. AT LEAST THREE LOCATIONS ALONG THE PATH OF THIS STORM SUPPORT THE OCCURRENCE OF A TORNADO OF EF-1 INTENSITY, WITH MAXIMUM WINDS APPROACHING 110 MPH, AN INTERMITTENT PATH LENGTH OF 6.5 MILES, AND A DAMAGE PATH WIDTH OF 60 YARDS.

THE FIRST OBSERVED DAMAGE WAS NEAR ROUND KNOB IN THE CLARK STATE FOREST. DAMAGE WAS AGAIN OBSERVED ALONG AND WEST OF SPEITH ROAD, 1/4 OF A MILE NORTH OF HENRYVILLE-BLUE LICK ROAD JUST SOUTHWEST OF HENRYVILLE. FINALLY, THE TORNADO LIFTED AFTER DOING DAMAGE FROM THE SOUTH SIDE OF HENRYVILLE NEAR ROBYN AVENUE TO THE EAST SIDE OF HENRYVILLE AT THE INTERSECTION OF HIGHWAY 60 AND HADDOX ROAD.

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PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE LOUISVILLE KY

545 PM EST MON MAR 05 2012

...Preliminary Tornado Damage Report for Clark and Scott Counties in

Indiana on March 2, 2012...

Damage Type: Tornado

Date: March 02 2012

Begin Time: 3:09 PM EST

End Time: 3:26 PM EST

EF Scale: EF4

Wind Speed: 175 mph maximum

Begin Point: Washington County-Clark County line just east of

S. Flatwood Road

End Point: Near the Scott County-Jefferson County line just north

of State Highway 362

Path Length: 16.7 miles across Clark County

Path Width: 0.4 mile maximum (diameter of damage)

Injuries: Unknown

Fatalities: 2 (1 in Clark County, 1 in Scott County)

Narrative:

The National Weather Service in conjunction with Clark County

Emergency Management conducted an exhaustive tornado damage survey

on Saturday and Sunday, March 3 and 4. Below are the results.

The tornado continued east-northeast in far northwest Clark County

on Dan Gray Road where the twister leveled many well-built homes and

caused extensive tree damage. The tornado here was rated EF4 with

estimated wind speeds of 170 mph and a damage width of one-third

mile.

The tornado moved into far southeast Washington County before

reappearing in Clark County. In Clark, the damage width narrowed to

one-quarter mile as the tornado crossed Pixley Knob Road and

decreased in intensity to EF2 with wind speeds of 115-120 mph.

Farther east, the tornado intensified again as it destroyed two

double wide homes on Speith Road. One family residence on the west

side of the road was severely damage reflecting EF3 damage with 150

mph winds.

The tornado crossed Interstate 65 damaging several vehicles and

semis, and closing the interstate for several hours. Several people

were trapped in these vehicles, but were later rescued.

The tornado continued to strengthen just east of Exit 19 of

Interstate 65 in a heavily industrialized area. Here, buildings

containing several businesses were severely damaged. A home was

destroyed on the east side of North Fraucke Road. The violent

tornado also seriously damaged several homes on the north side of

State Highway 160. Here, EF4 damage was apparent with 175 mph

estimated winds.

The tornado then struck the south buildings of the Henryville middle

and high school complex, with severe damage and 170 mph winds (EF4).

The middle school experienced the worst damage. The cafeteria was

completely destroyed. Two school buses were ripped off their

chassis.

There was also extensive structural damage on the east side of

Henryville on North Front Street and Pennsylvania Street. A high

tension tower and other homes were damaged on Pine Drive. Incredible

tree damage also occurred just west of Pine Drive as the tornado

traveled up a ridge. In this region, the tornado was an EF3 with 150

mph winds.

On Brownstown Road, many homes were severely damaged especially on

the north side of the tornado track with estimated speeds of 150 mph

(EF3). Farther east, there was massive deforestation on the east

side of a ridge just west of and along Henryville Otisco Road.

Several more homes were severely damaged along this road. One of

these homes reflected EF4 damage and 170 mph winds.

The tornado rapidly narrowed to a rope-like structure and ended as

an EF1 with 90-95 mph winds and an 80 yard wide path. This occurred

near the intersection of Blackberry Trail and State Highway 3.

Simultaneously, a new tornado vortex rapidly formed near Mahan Road

and Old State Road 3 immediately southwest of the first tornado. The

second tornado began as an EF1 and damaged a church. The vortex

quickly intensified to EF3 strength as it crossed the south part of

the town on Marysville, severely damaging several homes.

A Civil Air Patrol flight on Sunday, March 4 revealed extensive

ground scouring in farmers` fields east of Marysville all the way to

the Jefferson-Scott County line. This scouring was evidence of a

multi-vortex tornado, which was confirmed by multiple videos and

photographs.

Several homes were severely damaged near and south of the

intersection of Nabb New Washington Road and Marysville Nabb Road

(EF3, 150 mph winds, one-third mile damage path width).

The tornado continued north of Barnes Road damaging several clusters

of trees in open country. The tornado intensified east of the

intersection of Kettle Bottom and State Highway 362.

In Scott County, immediately north of Highway 362 and east of

Concord Road, three homes were severely damaged while five double

wide mobile homes were completely destroyed. Here, the tornado was

an EF4 with 170 mph winds. Just south of 362 in Clark County, two

additional homes and power polls were damaged greatly. From there,

the tornado crossed into Jefferson County, Indiana.

$$

National Weather Service Louisville, KY

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This is going to be one of those Hesston-Goessel or Picher-Neosho type situations where the damage is continuous, but in fact one vortex dissipated and another took over, so to speak.

Also, Marysville damage is EF3, apparently.

So then does that count as 1 or 2 tornadoes since there is essentially no gap?

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Farther east, there was massive deforestation on the east

side of a ridge just west of and along Henryville Otisco Road.

Several more homes were severely damaged along this road. One of

these homes reflected EF4 damage and 170 mph winds.

I believe this is the house in question in the before/after photo. The location I've seen it reported as being from was Henryville Otisco Road.

This makes sense to call it "all walls" collapsed. It is probable that the failure point was the three car garage, and once that is compromised tornadic winds were able to take down the rest of the structure.

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