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May 15-20th Severe Weather Event

Chicago Storm

By Chicago Storm,
in Lakes/Ohio Valley

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janetjanet998

janetjanet998

Posted
Posted

   
PRELIMINARY LOCAL STORM REPORT  
NATIONAL WEATHER SERVICE QUAD CITIES IA IL  
549 PM CDT THU MAY 18 2017  
   
.TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON  
   
.DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE.  
  
            ..REMARKS..  
  
0920 PM     TORNADO          2 SSW GALVA             41.14N 90.05W   
05/17/2017                   KNOX               IL   NWS STORM SURVEY  
  
            AN EF-2 TORNADO WITH PEAK ESTIMATED WIND SPEEDS OF 120   
            MPH CAUSED DAMAGE THAT WAS 50 YARDS WIDE ALSO ITS 1.29   
            MILE PATH. DAMAGE WAS TO TWO SNAPPED POWER POLES, ONE   
            HOME WITH SHINGLE DAMAGE AND ANOTHER WITH A ROOF   
            COMPLETELY REMOVED AND DOORS BLOWN OUT. THE RONADO   
            TOUCHED DOWN 2.0 MILES SOUTH SOUTHWEST OF GALVA AND   
            LIFTED 0.8 MILES WEST OF GALVA.   
  
0416 PM     TORNADO          7 NE WASHINGTON         41.37N 91.60W   
05/17/2017                   WASHINGTON         IA   NWS STORM SURVEY  
  
            AN EF-1 TORNADO SPUN UP AND TRACKED RAPIDLY TO THE   
            NORTHEAST. THE TORNADO DAMAGED NUMEROUS FARM   
            OUTBUILDINGS, POWER LINES, AND TREES ALONG THE PATH. THE   
            PEAK WIND SPEED WAS 110 MPH WITH A PATH LENGTH OF 5.95   
            MILES AND A MAX WIDTH OF 40 YARDS.   
  
PRELIMINARY LOCAL STORM REPORT  
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL  
741 PM CDT THU MAY 18 2017  
   
.TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON  
   
.DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE.  
  
            ..REMARKS..  
  
0630 PM     TSTM WND DMG     4 NW MACHESNEY PARK     42.39N 89.10W   
05/17/2017                   WINNEBAGO          IL   EMERGENCY MNGR    
  
            LARGE OUTBUILDING DESTROYED AND ONE WITH ITS ROOF   
            DAMAGED. NUMEROUS LARGE BRANCHES SNAPPED AND A COUPLE   
            LARGE TREES DOWNED. REPORTS AND RADAR ARE CONSISTENT WITH  
            STRAIGHT-LINE WIND DAMAGE OF 90-95 MPH.  

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Torchageddon

Torchageddon

Posted
Posted
8 hours ago, Roger Smith said:

Ontario and se MI, later n OH likely to see scattered severe storms and F1 tornado potential from developing Lake Huron squall line linking to developing cold front across Lake Michigan.  London to Hamilton ON north to Stratford to Orangeville suggested tornado watch box (19z-22z). 

The storms in SON totally missed and developed to my east and a tad south. There was some action north of TO where hail occurred. I didn't know that I wouldn't receive any rain or storm at all, it was sunny the whole way through to the cold front (rare). The 2/3 day forecast from TWN had no storms but showed some this morning.
 

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Tim from Springfield (IL)

Tim from Springfield (IL)

Posted
Posted

Although slightly east of the eastern extent of the marginal risk, southern Champaign County (IL) is under a severe thunderstorm warning for a narrow band of storms until 11:30: 

Severe Weather Statement
National Weather Service Lincoln IL
1043 PM CDT THU MAY 18 2017

ILC019-190430-
/O.CON.KILX.SV.W.0083.000000T0000Z-170519T0430Z/
Champaign-
1043 PM CDT THU MAY 18 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR SOUTHERN CHAMPAIGN COUNTY...

At 1043 PM CDT, a severe thunderstorm was located near Pesotum, or 11
miles north of Tuscola, moving east at 15 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Champaign, Urbana, Savoy, St. Joseph, Tolono, Philo, Sidney, Homer,
Ogden, Pesotum, Broadlands, Sadorus, Ivesdale, Longview and Willard
Airport.
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Hoosier

Hoosier

Posted
Posted
1 hour ago, HillsdaleMIWeather said:

nam3km_mslp_pcpn_frzn_ncus_52.png

Definitely a bit interested in Saturday, even with some issues (not really liking those upper level winds).  The area near the warm front with backed flow/enhanced low level shear may be worth watching.

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Tim from Springfield (IL)

Tim from Springfield (IL)

Posted
Posted

New Tstorm warning issued by LSX for the Litchfield, IL area--including wind gusts of 80 mph in this storm.

If this keeps up SPC needs to issue a new watch that includes the ILX CWA--with Springfield, Decatur, Champaign definitely included. 

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
536 AM CDT FRI MAY 19 2017

The National Weather Service in St Louis has issued a

* Severe Thunderstorm Warning for...
  Bond County in south central Illinois...
  Southeastern Greene County in southwestern Illinois...
  Northwestern Fayette County in south central Illinois...
  Macoupin County in southwestern Illinois...
  Montgomery County in south central Illinois...

* Until 645 AM CDT.

* At 536 AM CDT, severe thunderstorms were located along a line
  extending from near Carrollton to Mascoutah, moving northeast at 60
  mph.

  These are very dangerous storms.

  HAZARD...80 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Flying debris will be dangerous to those caught without
           shelter. Mobile homes will be heavily damaged. Expect
           considerable damage to roofs, windows, and vehicles.
           Extensive tree damage and power outages are likely.

* Locations impacted include...
  Greenville, Litchfield, Hillsboro, Carlinville, Staunton, Virden,
  Gillespie, Nokomis, Carrollton, Brighton, Girard, Mount Olive,
  Bunker Hill, Benld, Greenfield, Ramsey, Raymond, Witt, White Oak
  and Pocahontas.

This includes the following highways...
 Interstate 70 in Illinois between exits 36 and 52.
 Interstate 55 in Illinois between exits 41 and 63.

This also includes  Ramsey Lake State Park, Beaver Dam State Park,
and Lake Lou Yaeger.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.
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OceanStWx

OceanStWx

Posted
Posted
8 hours ago, cyclone77 said:

Guess that brings it up to 19 for 2017.  We can't compete with you guys though when it comes to major winter storms.  You've had some beauts the past few winters.  :beer:

I'm always willing to trade a major winter storm for a severe outbreak. 

For Saturday, there is enough of signal there to keep me interested. SREF has a little bullseye in IL. Lapse rates aren't forecast to be all that great which could limit CAPE, but the rest of the set up looks decent.

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geddyweather

geddyweather

Posted
Posted

Saw on IWX twitter this morning that they are sending a survey team to Paulding County, OH this afternoon. They were warned two or three different times yesterday, and it sounds like one of the storms caused significant damage throughout the county. So much so that they are still under a state of emergency, which they issued last night. Rumors of EF0 tornado among local outlets. I've heard reports of mainly tree and power line damage, but it must be heavy enough for IWX to send a team. I'm curious to see what they find, as I did not see much in the way of velocity signatures on radar last night.

EDIT: Now seeing a barn was destroyed at the intersection of County Road 133 and Co. Hwy 224, about 3 mi east of the town of Cecil, OH, with debris scattered 0.5-1mi away from the site. Likely where they are headed.

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IWXwx

IWXwx

Posted
Posted
12 minutes ago, geddyweather said:

Saw on IWX twitter this morning that they are sending a survey team to Paulding County, OH this afternoon. They were warned two or three different times yesterday, and it sounds like one of the storms caused significant damage throughout the county. So much so that they are still under a state of emergency, which they issued last night. Rumors of EF0 tornado among local outlets. I've heard reports of mainly tree and power line damage, but it must be heavy enough for IWX to send a team. I'm curious to see what they find, as I did not see much in the way of velocity signatures on radar last night.

EDIT: Now seeing a barn was destroyed at the intersection of County Road 133 and Co. Hwy 224, about 3 mi east of the town of Cecil, OH, with debris scattered 0.5-1mi away from the site. Likely where they are headed.

suspected-tornado.jpg

possible-tornado-2.jpg

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snowlover2

snowlover2

Posted
Posted

Tornado warning in SE IN.

Quote

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Louisville KY
241 PM EDT FRI MAY 19 2017

The National Weather Service in Louisville has issued a

* Tornado Warning for...
  Northern Jefferson County in south central Indiana...

* Until 300 PM EDT

* At 241 PM EDT, a severe thunderstorm capable of producing a tornado
  was located 11 miles northwest of Madison, moving east at 25 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.

* Locations impacted include...
  Madison, Smyrna, Wakefield, Middlefork, Canaan, Volga, North
  Madison, Manville, Belleview and Bryantsburg.

 

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snowlover2

snowlover2

Posted
Posted

New watch

Quote

URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 247
   NWS Storm Prediction Center Norman OK
   310 PM EDT Fri May 19 2017

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of
     southeastern Indiana
     north central Kentucky
     central and southern Ohio
     southwestern Pennsylvania
     northern West Virginia

   * Effective this Friday afternoon and evening from 310 PM until
     1100 PM EDT.

   * Primary threats include...
     Isolated damaging wind gusts to 70 mph possible
     Isolated large hail events to 1.5 inches in diameter possible
     A tornado or two possible

   SUMMARY...A cluster of thunderstorms is expected to continue to
   evolve and organize along and south of a frontal zone extending
   across the region.  Strongest storms may be capable of producing
   severe hail, with increasing potential for damaging wind gusts
   during the next several hours.

   The severe thunderstorm watch area is approximately along and 60
   statute miles north and south of a line from 40 miles west southwest
   of Dayton OH to 40 miles northeast of Parkersburg WV. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU7).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   REMEMBER...A Severe Thunderstorm Watch means conditions are
   favorable for severe thunderstorms in and close to the watch area.
   Persons in these areas should be on the lookout for threatening
   weather conditions and listen for later statements and possible
   warnings. Severe thunderstorms can and occasionally do produce
   tornadoes.

   &&

   OTHER WATCH INFORMATION...CONTINUE...WW 246...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
   few cumulonimbi with maximum tops to 500. Mean storm motion vector
   27035.

   ...Kerr

 

ww0247_radar.gif

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IWXwx

IWXwx

Posted
Posted

Ohio damages were straight-line winds (2 paths), although surveyors seemed to hedge their bets on the second path. 

Public Information Statement
National Weather Service Northern Indiana
454 PM EDT Fri May 19 2017 /354 PM CDT Fri May 19 2017/

...NWS DAMAGE SURVEY FOR 05/18/17 THUNDERSTORM WIND EVENT...

.OVERVIEW...National Weather Service and Emergency Management
officials surveyed damage in Paulding County. Investigation of the
damage indicates straight line winds were the likely cause of the
damage. Details follow. 

.Haviland Ohio Thunderstorm Wind 1...

Peak wind /E/:          80-85 mph
Path length /Statute/:  2 miles
Path width /Maximum/:   50 yards
Fatalities:             0
Injuries:               0

Start date:             May 18 2017
Start time:             525 pm EDT
Start location:         2.3 WSW Haviland
Start Lat/Lon:          41.01451/-84.6317

End date:               May 18 2017
End time:               527 pm EDT
End location:           0.9 SW Haviland
End lat/lon:            41.00578/-84.59032

SURVEY_SUMMARY: Two swaths of wind damage were noted from separate
thunderstorms west of Haviland. The first storm snapped a couple
dozen power poles near the ground from northwest of Haviland to
west of Haviland along County Road 107. A few smaller tree limbs
were also blown down. A second swath caused significant damage to
a large pole barn southwest of the intersection of State Route 114
and County Road 87. Debris was carried to the southeast for
roughly 2 miles across open fields. Several power poles were also
snapped towards the end of the downburst. Along County Road 107,
between 70 and 80 power poles were snapped by strong winds. Winds
are estimated at between 80 to 85 mph.

.Cecil Ohio Thunderstorm Wind 2...

Peak wind /E/:          65-70 mph
Path length /Statute/:  1 miles
Path width /Maximum/:   25 yards
Fatalities:             0
Injuries:               0

Start date:             May 18 2017
Start time:             429 pm EDT
Start location:         3.5 E Cecil
Start Lat/Lon:          41.22438/-84.51582

End date:               May 18 2017
End time:               431 pm EDT
End location:           4.5 E Cecil
End lat/lon:            41.22498/-84.49610

SURVEY_SUMMARY: Damage was found along a roughly one mile path of
isolated damage starting near the intersection of County Road 224
and 133. A older pole barn was impacted by the winds, causing it
fall onto itself and mainly roofing debris being carried roughly a
third of a mile. Several 2 by 4 boards were found embedded in the
ground in various directions. Along this same path a garage door 
was pushed in with a few pieces of roofing thrown east to 
northwest of the intersection of County Roads 224 and 139. A 5th 
wheel trailer was rolled several times, landing in a pond. Near 
the intersection of County Roads 218 and 133 2 garage doors were 
pushed in. One of the buildings had its north and south walls 
pushed outward. 

While the boards in the ground, as well as damage to structures
south of the destroyed barn may suggest some weak rotation,
damage in the area was not conclusive enough to classify a small
area of damage as possibly tornadic. Data will continue to be
reviewed.

We wish to thank Emergency Management officials in Paulding and
Van Wert Counties for their help with the surveys.

 

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IWXwx

IWXwx

Posted
Posted
4 minutes ago, Indystorm said:

Saturday eve just might be a cause for more tornadic concern up your way in ne Indiana with that warm front per 18z NAM STP.

Lol. I just posted the same thing in the discussion thread. I will be in New Castle in the morning and heading back north mid afternoon. Maybe I can catch something on the way back.

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cyclone77

cyclone77

Posted
Posted

DVN confirmed 2 more tornadoes today, which brings them up to 7 for the event, and 21 for 2017.  After seeing the EF-0 confirmed south of Muscatine I reviewed my pics.  Shot this out the windshield at 5:01 near Bluegrass looking southwest on route 61, which was 3 minutes prior to the brief touchdown per DVN.  Sorry for the crappy quality lol

klro4.jpg

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hlcater

hlcater

Posted
Posted
12 minutes ago, cyclone77 said:

DVN confirmed 2 more tornadoes today, which brings them up to 7 for the event, and 21 for 2017.  After seeing the EF-0 confirmed south of Muscatine I reviewed my pics.  Shot this out the windshield at 5:01 near Bluegrass looking southwest on route 61, which was 3 minutes prior to the brief touchdown per DVN.  Sorry for the crappy quality lol

 

Really? I was like 5 miles south of it at that point and saw nothing, not even a funnel. After it started to pass Muscatine the storm went to LP mode, so little/no potential for tornadoes there.

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cyclone77

cyclone77

Posted
Posted
5 hours ago, NWLinnCountyIA said:

Really? I was like 5 miles south of it at that point and saw nothing, not even a funnel. After it started to pass Muscatine the storm went to LP mode, so little/no potential for tornadoes there.

Yeah we didn't see anything either, although we were fairly far away as you can see in the pictures.  Right after the latest pic I posted we lost sight of the meso as we went through an area with trees, etc.  More than likely it was probably a brief ground-level "spin up" with little if any actual funnel visible to the naked eye.  In other words, very wussy lol.

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Indystorm

Indystorm

Posted
Posted

HRRR not as favorable and it was more accurate with the prior system....although 70 dews are near EVV at this time moving ne and a t storm is approaching me from the sw.  Salem IN down in Washington County got over 7 inches of rain in a few hours last night with serious flash flooding.   WTHR has had info and photos.  With the way storms are rapidly moving ne it is possible a good chunk of IN could get into the warm sector this afternoon and destabilize before the cold front comes through later on with some evening t storms.

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