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2015 Short Term Severe Weather Discussion


Hoosier

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I actually caught a wall cloud myself this afternoon. Saw some weak rotation on radar just north of Huntington County and decided to have a look.

 

post-830-0-53109400-1440373853_thumb.jpg

 

Here is a video shot from my dash cam from my original interception location (warning: kind of boring unless you like to watch slowly rotating clouds):

 

https://youtu.be/SXq2fpeTy8g

 

I chased it about 20 miles to a point just northeast of FWA airport. I have a couple of more videos to upload that show the rotation better than this one, near and just south of Fort Wayne, that I will upload later.

 

 

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I actually caught a wall cloud myself this afternoon. Saw some weak rotation on radar just north of Huntington County and decided to have a look.

 

attachicon.gifwallcloudwhitleyco082315.jpg

 

Here is a video shot from my dash cam from my original interception location (warning: kind of boring unless you like to watch slowly rotating clouds):

 

https://youtu.be/SXq2fpeTy8g

 

I chased it about 20 miles to a point just northeast of FWA airport. I have a couple of more videos to upload that show the rotation better than this one, near and just south of Fort Wayne, that I will upload later.

 

Nice.  Looks like it was trying to get something going there for awhile.  

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Nice.  Looks like it was trying to get something going there for awhile.  

 

Yeah, I kept following it, thinking it would try to drop something, but no.

 

This was shot a few miles east of the first. It was kind of ragged, but you can make out the rotation better, especially after I zoomed in about a minute in:

 

 

The last one was just north of FWA. I'm sure the observer could have easily seen it if he was looking (Sorry about the bird making a deposit on my windshield):

 

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Great photos and video IWXwx and Quincy.

I was also on that storm, waiting between Kalida and Ottawa, OH after I spotted the rotation on radar. I could see a wall cloud similar to the one in Quincy's photos in Grover Hill, but it fell apart before it got close enough to my position. I did however get photos of the shelf cloud that formed out of its remanents outside of Ottawa. The storm regained rotation for a brief time just to the east of Columbus Grove, OH, but lost it again soon after it formed.

I'll post photos tomorrow afternoon, I did not have time to edit tonight.

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Great photos and video IWXwx and Quincy.

I was also on that storm, waiting between Kalida and Ottawa, OH after I spotted the rotation on radar. I could see a wall cloud similar to the one in Quincy's photos in Grover Hill, but it fell apart before it got close enough to my position. I did however get photos of the shelf cloud that formed out of its remanents outside of Ottawa. The storm regained rotation for a brief time just to the east of Columbus Grove, OH, but lost it again soon after it formed.

I'll post photos tomorrow afternoon, I did not have time to edit tonight.

 

There were wind damage reports between you and me, close to the IN/OH border. Probably RFD related.

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  • 3 weeks later...

Today has gotten unexpectedly active (IMO) in central/western Illinois, particularly in the Peoria-Macomb-Springfield triangle area so far.  Confirmed tornado NW of Springfield in southern Mason County heading southeast--the immediate SPI area might be on a collision course with this storm if it holds:
 

TORNADO WARNINGILC017-125-129-102230-/O.NEW.KILX.TO.W.0019.150910T2156Z-150910T2230Z/BULLETIN - EAS ACTIVATION REQUESTEDTORNADO WARNINGNATIONAL WEATHER SERVICE LINCOLN IL456 PM CDT THU SEP 10 2015THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A* TORNADO WARNING FOR...  SOUTH CENTRAL MASON COUNTY IN CENTRAL ILLINOIS...  MENARD COUNTY IN CENTRAL ILLINOIS...  NORTHEASTERN CASS COUNTY IN WEST CENTRAL ILLINOIS...* UNTIL 530 PM CDT* AT 455 PM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR  KILBOURNE...OR 12 MILES SOUTHEAST OF HAVANA...MOVING SOUTHEAST AT  35 MPH.  HAZARD...TORNADO.  SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. REPORTED BY MASON  COUNTY EMERGENCY MANAGEMENT.  IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.* THE TORNADO WILL BE NEAR...  PETERSBURG AROUND 510 PM CDT.  GREENVIEW AROUND 515 PM CDT.  ATHENS AROUND 520 PM CDT.OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDEOAKFORD...SWEETWATER...LINCOLNS NEW SALEM AND ATTERBERRY.PRECAUTIONARY/PREPAREDNESS ACTIONS...TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW! MOVE TO ABASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDYBUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A MOBILE HOME...ORIN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECTYOURSELF FROM FLYING DEBRIS.TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE INLINCOLN.&&LAT...LON 4008 9008 4019 8994 4003 8961 3990 8983TIME...MOT...LOC 2155Z 312DEG 32KT 4013 8996TORNADO...OBSERVEDHAIL...<.75IN
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I'm now under a Severe Thunderstorm Warning from the cell that prompted the TW in Cass, Menard and Mason counties a half-hour ago:
 

SEVERE THUNDERSTORM WARNINGILC129-167-102300-/O.NEW.KILX.SV.W.0137.150910T2224Z-150910T2300Z/BULLETIN - IMMEDIATE BROADCAST REQUESTEDSEVERE THUNDERSTORM WARNINGNATIONAL WEATHER SERVICE LINCOLN IL524 PM CDT THU SEP 10 2015THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A* SEVERE THUNDERSTORM WARNING FOR...  CENTRAL SANGAMON COUNTY IN CENTRAL ILLINOIS...  SOUTH CENTRAL MENARD COUNTY IN CENTRAL ILLINOIS...* UNTIL 600 PM CDT* AT 523 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR PLEASANT  PLAINS...OR 12 MILES NORTHWEST OF SPRINGFIELD...MOVING SOUTHEAST AT  45 MPH.  HAZARD...GOLF BALL SIZE HAIL.  SOURCE...LAW ENFORCEMENT. AT 523 PM...GOLFBALL SIZE HAIL WAS           REPORTED 1 MILE EAST OF TALLULA...IN MENARD COUNTY.  IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT           DAMAGE TO ROOFS...SIDING...WINDOWS AND VEHICLES.* THIS SEVERE THUNDERSTORM WILL BE NEAR...  SPRINGFIELD AROUND 540 PM CDT.  CHATHAM AND ROCHESTER AROUND 545 PM CDT.OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE SOUTHERNVIEW...LELAND GROVE...CLEAR LAKE...JEROME...SALISBURY...GRANDVIEW...CAPITAL AIRPORT AND FARMINGDALE.THIS INCLUDES THE FOLLOWING HIGHWAYS... INTERSTATE 55 BETWEEN MILE MARKERS 85 AND 100. INTERSTATE 72 BETWEEN MILE MARKERS 92 AND 106.PRECAUTIONARY/PREPAREDNESS ACTIONS...REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLYFROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THEBASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE INLINCOLN.LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUNDLIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY.LIGHTNING IS ONE OF NATURES LEADING KILLERS. REMEMBER...IF YOU CANHEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.&&LAT...LON 3990 8991 3998 8980 3976 8945 3963 8964TIME...MOT...LOC 2223Z 317DEG 38KT 3989 8983TORNADO...POSSIBLEHAIL...1.75INWIND...<50MPH$$GEELHART
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Today has gotten unexpectedly active (IMO) in central/western Illinois, particularly in the Peoria-Macomb-Springfield triangle area so far.  Confirmed tornado NW of Springfield in southern Mason County heading southeast--the immediate SPI area might be on a collision course with this storm if it holds:

 

TORNADO WARNINGILC017-125-129-102230-/O.NEW.KILX.TO.W.0019.150910T2156Z-150910T2230Z/BULLETIN - EAS ACTIVATION REQUESTEDTORNADO WARNINGNATIONAL WEATHER SERVICE LINCOLN IL456 PM CDT THU SEP 10 2015THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A* TORNADO WARNING FOR...  SOUTH CENTRAL MASON COUNTY IN CENTRAL ILLINOIS...  MENARD COUNTY IN CENTRAL ILLINOIS...  NORTHEASTERN CASS COUNTY IN WEST CENTRAL ILLINOIS...* UNTIL 530 PM CDT* AT 455 PM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR  KILBOURNE...OR 12 MILES SOUTHEAST OF HAVANA...MOVING SOUTHEAST AT  35 MPH.  HAZARD...TORNADO.  SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. REPORTED BY MASON  COUNTY EMERGENCY MANAGEMENT.  IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.* THE TORNADO WILL BE NEAR...  PETERSBURG AROUND 510 PM CDT.  GREENVIEW AROUND 515 PM CDT.  ATHENS AROUND 520 PM CDT.OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDEOAKFORD...SWEETWATER...LINCOLNS NEW SALEM AND ATTERBERRY.PRECAUTIONARY/PREPAREDNESS ACTIONS...TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW! MOVE TO ABASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDYBUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A MOBILE HOME...ORIN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECTYOURSELF FROM FLYING DEBRIS.TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE INLINCOLN.&&LAT...LON 4008 9008 4019 8994 4003 8961 3990 8983TIME...MOT...LOC 2155Z 312DEG 32KT 4013 8996TORNADO...OBSERVEDHAIL...<.75IN

 

0440 PM TORNADO 2 SSE BATH 40.16N 90.13W

09/10/2015 MASON IL EMERGENCY MNGR

TORNADO ON THE GROUND FOR LESS THAN 30 SECONDS. ONE HOME

WITH DAMAGE TO SIDING AND BRANCHES BLOWN THROUGH WINDOWS.

MULTIPLE POWER LINES ALSO DOWN IN THE AREA.

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Surprised that no one has mentioned this:

 

TORNADO WARNING
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
444 PM CDT FRI SEP 18 2015

THE NATIONAL WEATHER SERVICE IN CHICAGO  HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL COOK COUNTY IN NORTHEASTERN ILLINOIS...
  CENTRAL WILL COUNTY IN NORTHEASTERN ILLINOIS...

* UNTIL 515 PM CDT
    
* AT 443 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR MONEE...OR NEAR FRANKFORT...MOVING EAST AT
  20 MPH.

  HAZARD...TORNADO.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED.
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE
           DAMAGE IS LIKELY.

* THIS DANGEROUS STORM WILL BE NEAR...
  RICHTON PARK AND MONEE AROUND 500 PM CDT.
  UNIVERSITY PARK AROUND 505 PM CDT.
  MATTESON AND OLYMPIA FIELDS AROUND 510 PM CDT.
  PARK FOREST AND FLOSSMOOR AROUND 515 PM CDT.

THIS INCLUDES... GOVERNORS STATE UNIVERSITY.
 
INCLUDING THE FOLLOWING INTERSTATE...
 I-57 BETWEEN MILE MARKERS 332 AND 341.
 

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Looks like there was a tornado in Will county.

 

Yeah, I saw those reports last evening. All that's been released so far:

 

PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE CHICAGO IL

956 PM CDT FRI SEP 18 2015

...BRIEF TORNADO TOUCHDOWN WEST OF MONEE HAS BEEN PRELIMINARILY

CONFIRMED...

WILL COUNTY EMERGENCY MANAGEMENT HAS CONDUCTED A SURVEY OF DAMAGE

WEST OF MONEE NEAR THE GREEN GARDEN COUNTRY CLUB. BASED ON EARLY

INFORMATION FROM THEIR SURVEY...RADAR DATA...AND A TRAINED SPOTTER

IT IS LIKELY THAT A TORNADO TOUCHED DOWN AROUND 450 PM NEAR MONEE

MANHATTEN RD AND S 88TH AVE IN CENTRAL WILL COUNTY. ADDITIONAL

INFORMATION ON THIS TORNADO WILL BE RELEASED TOMORROW EVENING

ONCE A FINAL DAMAGE SURVEY REPORT IS A COMPLETED.

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PUBLIC INFORMATION STATEMENT  

NATIONAL WEATHER SERVICE CHICAGO,IL  

413 PM CDT SAT SEP 19 2015  

   

..DAMAGE SURVEY FOR 09/18/2015 EF-1 FRANKFORT-MONEE TORNADO  

 

RATING: EF-1  

ESTIMATED PEAK WIND: 90 MPH  

PATH LENGTH /STATUTE/: 2.6 MILES  

PATH WIDTH /MAXIMUM/: 50 YARDS  

FATALITIES: 0  

INJURIES: 0  

 

START DATE: SEP 18 2015  

START TIME: 4:44 PM CDT  

START LOCATION: 5 MILES SOUTH OF FRANKFORT IL  

START LAT/LON: 41.4164 / -87.8600  

 

END DATE: SEP 18 2015  

END TIME: 4:53 PM CDT  

END LOCATION: 5 MILES SOUTH SOUTHEAST OF FRANKFORT IL  

END_LAT/LON: 41.4266 / -87.8119  

 

BASED ON THE DETAILED DAMAGE SURVEY CONDUCTED BY THE WILL COUNTY EMERGENCY  

MANAGEMENT AGENCY A TORNADO TOUCHED DOWN SOUTH OF MONEE MANHATTAN ROAD  

BETWEEN S 104TH AVENUE AND S CENTER ROAD. THE TORNADO TRACKED EAST NORTHEAST  

TRACKING ACROSS THE GREEN GARDEN COUNTRY CLUB DOWNING APPROXIMATELY 20  

TREES...THEN CROSSED S 88TH AVENUE AND STRUCK A COUPLE HOMES ON CHARLEVOIX  

DRIVE CAUSING SOME MINOR ROOF DAMAGE. THE TORNADO THEN LIFTED NEAR MONEE  

MANHATTAN ROAD WEST OF S 80TH AVENUE.  

 

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  • 3 weeks later...

FWIW SPC now has a D3 marginal risk for NE MO, N IL and parts of E IA:

 

http://www.spc.noaa.gov/products/outlook/day3otlk.html

 

 ...UPPER MIDWEST...
   A FAST-MOVING UPPER-LEVEL TROUGH IS FORECAST TO MOVE ESEWD ACROSS
   THE UPPER MIDWEST ON THURSDAY. AT THE SFC...A LOW IS FORECAST TO
   MOVE TO NEAR LAKE SUPERIOR WITH A COLD FRONT ADVANCING SEWD ACROSS
   WI...IA AND NRN MO. AHEAD OF THE FRONT...SFC DEWPOINTS IN THE LOWER
   60S F MAY LEAD TO POCKETS OF MODERATE INSTABILITY BY AFTERNOON WHERE
   ISOLATED THUNDERSTORM DEVELOPMENT WILL BE POSSIBLE. FORECAST
   SOUNDINGS IN DAVENPORT IA AT 00Z/FRIDAY SHOW MLCAPE AROUND 1000 J/KG
   WITH 35 KT OF 0-6 KM SHEAR AND 500 MB TEMPS OF -12 TO -13C. THIS
   COULD BE SUFFICIENT FOR A MARGINAL HAIL THREAT WITH THE STRONGER
   CELLS THAT DEVELOP ALONG THE FRONT LATE THURSDAY AFTERNOON.

   ..BROYLES.. 10/06/2015
 

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  • 2 weeks later...
BULLETIN - EAS ACTIVATION REQUESTED  

TORNADO WARNING  

NATIONAL WEATHER SERVICE MARQUETTE MI  

242 PM EDT THU OCT 15 2015  

 

THE NATIONAL WEATHER SERVICE IN MARQUETTE HAS ISSUED A  

 

* TORNADO WARNING FOR...  

EAST CENTRAL MARQUETTE COUNTY IN NORTH CENTRAL UPPER MICHIGAN...  

 

* UNTIL 315 PM EDT  

 

* AT 241 PM EDT...A CONFIRMED TORNADO WAS LOCATED NEAR HARVEY...OR 3  

MILES SOUTHEAST OF MARQUETTE...MOVING SOUTHEAST AT 35 MPH.  

 

HAZARD...TORNADO.  

 

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.  

 

IMPACT...SPORADIC DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.  

 

* THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF  

EAST CENTRAL MARQUETTE COUNTY...INCLUDING THE FOLLOWING  

LOCATIONS...BEAVER GROVE...HARVEY...AND SHOT POINT ALONG M-28.

 

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