Friday, February 28, 2014

NWS Confirms Tornado In Montgomery County

A third tornado has been confirmed from the February 20 storms. 


PUBLIC INFORMATION STATEMENT  
NATIONAL WEATHER SERVICE INDIANAPOLIS IN  
106 PM EST FRI FEB 28 2014  
   
..NWS DAMAGE SURVEY FOR 02/20/2014 CRAWFORDSVILLE TORNADO EVENT  
  
A SEVERE SQUALL LINE FEBRUARY 20 PRODUCED 3 SMALL AND BRIEF  
TORNADOES ACROSS INDIANA INCLUDING THIS TORNADO NEAR  
CRAWFORDSVILLE. THE OTHER TORNADOES OCCURRED NEAR ARLINGTON IN  
RUSH COUNTY AND OSGOOD IN RIPLEY COUNTY.  
   
CRAWFORDSVILLE TORNADO  
  
RATING: EF-0  
ESTIMATED PEAK WIND: 80 MPH   
PATH LENGTH /STATUTE/: 7.8 MILES  
PATH WIDTH /MAXIMUM/: 40 YARDS  
FATALITIES: 0   
INJURIES: 0  
  
START DATE: 02/20/2014  
START TIME: 7:40 PM EST  
START LOCATION: 2.5 MILES SOUTHEAST OF CRAWFORDSVILLE  
  
END DATE: 02/20/2014  
END TIME: 7:48 PM EST  
END LOCATION: 0.7 MILES SOUTH OF DARLINGTON  
  
NUMEORUS OUTBUILDINGS WERE DAMAGED. NUMEROUS HOMES LOST SHINGLES.  
A TRUCK STOP CANOPY WAS PARTIALLY BLOWN OFF. NUMEROUS TREES WERE  
SHEARED OFF HALFWAY OR MORE ABOVE GROUND.   

Saturday, February 22, 2014

NWS Confirms Tornado In Rush County

NWS Indianapolis has confirmed that a very brief EF0 tornado touched down in Rush county on Friday.  Survey information is posted below.


The line of severe thunderstorms took on a bowed structure as it entered northwest Rush County on Friday evening.  Numerous areas of severe, straight-line wind damage were observed near the Arlington area.  However, one homestead east of County Road 700 West on County Road 300 North did exhibit signs of damage that appeared tornadic.  Based on the storm survey coupled with radar data...it has been determined that the damage at this homestead was consistent with an EF-0 tornado, with winds of approximately 85 mph.  This tornado occurred at approximately 9:32 PM EST and was very short-lived...on the ground for less than a tenth of a mile and less than a minute.  A few trees were downed...with one blown through the back side of a tin shed.  Also, the roof was removed from an outbuilding on the premises.

NWS Confirms Tornado In Ripley County

The NWS has confirmed a short-lived EF1 tornado occurred in Ripley county on February 20.  This is the first tornado in 2014.


PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH  
641 PM EST FRI FEB 21 2014  
  
...TORNADO CONFIRMED 4 MILES NORTH OF OSGOOD IN RIPLEY  
COUNTY INDIANA...  
  
LOCATION...4 MILES NORTH OF OSGOOD IN RIPLEY COUNTY INDIANA   
DATE...02/20/2014  
ESTIMATED TIME...1014 PM EST   
MAXIMUM EF-SCALE RATING...EF1   
ESTIMATED MAXIMUM WIND SPEED...90 MPH   
MAXIMUM PATH WIDTH...50 YARDS   
PATH LENGTH...4/5 MILE   
BEGINNING LAT/LON...39.1792N / 85.2854W  
ENDING LAT/LON...39.1877N / 85.2750W  
* 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 WILMINGTON OH HAS CONFIRMED A   
TORNADO 4 MILES NORTH OF OSGOOD IN RIPLEY COUNTY INDIANA  
ON 02/20/2014.  
  
THE TORNADO FIRST TOUCHED DOWN NEAR A MOBILE HOME ON NORTH FINKS   
ROAD JUST NORTH OF WEST COUNTY ROAD 700 NORTH. THE MOBILE HOME WAS   
MOVED UP TO 15 FEET OFF ITS FOUNDATION AND IN THE PROCESS THIS   
KNOCKED DOWN TWO BRICK WALLS THAT WERE TWO FEET HIGH. WINDOWS WERE   
BLOWN OUT ON THREE SIDES OF THE MOBILE HOME. MAJOR ROOF DAMAGE ALSO   
OCCURRED TO THE HOME. INSULATION FROM THIS MOBILE HOME COVERED THE   
EAST FACING SIDE OF THE STRUCTURE...INDICATING STRONG ROTATING   
WINDS. TWO SMALL TREES WERE SNAPPED EAST OF THE HOME. BASED ON THE   
DAMAGE SURVEYED...THIS PORTION OF THE TORNADO PATH WAS CLASSIFIED AS   
EF1...WITH WINDS UP TO 90 MILES PER HOUR.   
  
JUST BEFORE THE TORNADO LIFTED...TWO POLE BARNS WERE DAMAGED. THE   
SOUTHEAST CORNER OF THE FIRST BARN COMPLETELY COLLAPSED. SOME SIDING   
WAS MISSING ON ALL FOUR SIDES OF THIS BARN. THE SECOND  
BARN...LOCATED JUST SOUTH OF THE FIRST BARN...HAD 20 TO 30 PERCENT   
OF THE ROOF MISSING AND 10 TO 20 PERCENT OF THE SIDING MISSING ON   
THREE OF ITS SIDES. ON THE SOUTH SIDE OF THIS BARN...UP TO 40   
PERCENT OF THE SIDING WAS MISSING. THE DAMAGE SURVEYED ALONG THIS   
PORTION OF THE TRACK WAS INDICATIVE OF AN EF0 TORNADO WITH 70 MILE   
PER HOUR WINDS.   

Monday, January 6, 2014

2013 Year In Review

With 2013 now complete, here is a recap of this year's tornadoes.


January:

2 tornadoes occurred in southern Indiana during the early morning hours of January 30.  A brief EF1 occurred in Orange county and an EF0 occurred in Harrison county.


May:

After no tornadoes in February, March and April, several tornadoes occurred in the month of May.  Two EF0 tornadoes occurred in Vigo county on May 9.  Two more EF0 tornadoes occurred in Hendricks and Putnam counties during the early morning hours of May 21.  Finally, an EF0 struck Benton county on May 31.  


June:

Much of June was quiet in terms of tornadoes until June 26.  On that day, two EF1 tornadoes occurred in Pike and Perry counties.  The Perry county tornado was on the ground for over 5 miles and caused damage in and around Tell City.


July:

One tornado occurred in July.  An EF1 struck Miami county on July 10, resulting in 2 injuries.  This tornado was on the ground for about 3.5 miles. 


November:

This month will be remembered for the massive tornado outbreak that occurred on the 17th.  This outbreak is the biggest fall tornado outbreak on record in Indiana and is one of the more impressive fall outbreaks to ever occur in the United States.  28 tornadoes struck the state with major damage occurring in numerous locations.  Some of the hardest hit areas were Kokomo, Lebanon and Lafayette.  For more on this outbreak, see this post.

Sunday, December 8, 2013

"Near" F5/EF5 Tornadoes

Based on official records, Indiana has experienced three F5 tornadoes since 1950, all of which occurred on the infamous date of April 3, 1974.  But there are other tornadoes that have been deemed "near-F5" or actually rated F5 by non-official sources.  Here are the tornadoes from 1880-present that are rated F5 by another source or were said to be near-F5 by Tom Grazulis (note that the list below does not include those three official F5s).


April 1, 1884 - Henry/Delaware (rated F5 by Grazulis)

May 26, 1917 - Monroe:  about 15 homes were destroyed, some with near-F5 damage

March 28, 1920 - Jay/Adams/Mercer OH/Van Wert OH:  homes were entirely swept away east of Geneva and south of Ceylon in possible F5 fashion

March 18, 1925 - MO/IL/Posey/Gibson/Pike (Tri-State Tornado, rated F5 by Grazulis)

May 21, 1949 - Crawford IL/Sullivan:  restaurant leveled and cars carried 100-300 yards  (recognized as F5 by Nuclear Regulatory Commission, or NRC)

April 17, 1963 - Kankakee IL/Newton/Jasper/Pulaski:  near-F5 damage occurred in IL and seven homes were swept away (near-F5) in Jasper county

April 11, 1965 - Elkhart/LaGrange:  a dozen homes were leveled in the Rainbow Lake area and intensity was near-F5

April 11, 1965 - St. Joseph/Elkhart/LaGrange - Sunnyside and Kingston Heights housing developments in Dunlap were devastated  (rated F5 by Grazulis)

April 11, 1965 - Montgomery/Boone/Hamilton:  cars were thrown over 100 yards  (recognized as F5 by NRC)

April 3, 1974 - Bartholomew/Decatur/Franklin:  near-F5 damage occurred on a Decatur county farm, 3 miles southwest of New Point


A recent interesting case is the Henryville tornado of March 2, 2012.  The tornado is officially rated EF4, but thick sections (6" thick or greater) of concrete were ripped up and thrown some distance at one point along the damage path.  There is no damage indicator on the EF scale to account for this type of damage but it would likely take incredible wind speeds to do that.  The fast forward speed of this tornado means that very strong winds would have impacted any particular spot very briefly, so it is not a case of the wind gradually weakening the pavement. 





Friday, November 22, 2013

Recap Of The November 17 Tornado Outbreak

The surveys are in, and what an outbreak it was.  As of this writing, a total of 28 tornadoes have been confirmed across the state, which makes it the third largest outbreak on record.  Impressively, 13 of the 28 tornadoes were rated EF2 or greater.  Instead of posting survey information for 28 tornadoes, I will just provide a list at the end of this post.  But first, here are some quick historical tidbits...


Previous largest November tornado outbreak:
November 22, 1992 - 15

Previous largest number of F2/EF2+ tornadoes in a November tornado outbreak:
November 22, 1992 - 10

There had only been 48 tornadoes in Indiana in November from 1950-2012, or an average of 1 every 1.3 years.

There had only been 27 F2/EF2+ tornadoes in Indiana in November from 1950-2012, or an average of 1 every 2.3 years.


November 17 Tornadoes:

EF1:  Newton/Jasper
EF1:  Jasper
EF2:  Benton/White
EF2:  White
EF1:  Pulaski
EF1:  White
EF3:  Tippecanoe/Clinton/Carroll/Cass
EF0:  Cass
EF1:  Miami
EF1:  Kosciusko
EF2:  Grant/Wabash
EF2:  Wabash/Kosciusko
EF1:  Kosciusko
EF0:  Grant
EF2:  Vermillion/Warren
EF2:  Fountain/Tippecanoe
EF1:  Montgomery
EF2:  Tippecanoe
EF0:  Tippecanoe
EF1:  Tippecanoe
EF2:  Knox
EF2:  Clinton/Howard
EF2:  Howard
EF2:  Daviess
EF2:  Boone
EF1:  Boone
EF1:  Lawrence
EF1:  Hamilton/Tipton

Friday, July 12, 2013

NWS Confirms Tornado In Miami County

The NWS in North Webster has confirmed an EF1 tornado struck Peru on July 10.


 
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
124 PM EDT FRI JUL 12 2013 /1224 PM CDT FRI JUL 12 2013/
   
 
..TORNADO /MIAMI COUNTY/


RATING: EF-1
MAXIMUM ESTIMATED WIND SPEED: 95 MPH
PATH LENGTH: 3.5 MILES
PATH WIDTH: /MAXIMUM/ 200 YARDS
TIME: 128 PM EDT JULY 10...2013
LOCATION: 2.3 MILES WSW OF PERU TO 1.4 MILES SE OF PERU
DESCRIPTION: AN EF1 TORNADO WAS CONFIRMED ALONG THE SOUTH SIDE OF
THE TOWN OF PERU. THE TORNADO TOUCHED DOWN IN A CORN FIELD JUST TO
THE WEST OF COUNTRYMARK REFINERY SOUTH OF US HIGHWAY 24. DAMAGE
CONTINUED IN AN EAST...SOUTHEAST FOR APPROXIMATELY 3.5 MILES. THE
TORNADO PATH ENDED ACROSS STATE ROAD 19 BETWEEN ASTRUP DRIVE AND
PARKWAY TERRACE. EXTENSIVE TREE DAMAGE WAS NOTED ALONG THE PATH WITH
NUMEROUS TREES UPROOTED OR SNAPPED OFF. MINOR STRUCTURAL DAMAGE TO
HOMES WAS NOTED FROM FALLING TREES. SEVERAL BUSINESSES SUSTAINED
MINOR FACADE OR ROOF DAMAGE.