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April 27-May 6, 2022 | Tornado Outbreak Sequence


ElectricStorm

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NWS Topeka has confirmed 1 tornado so far. An EF1 that traveled almost 18 miles.

Quote
Public Information Statement
National Weather Service Topeka KS
152 PM CDT Sat Apr 30 2022

...Preliminary NWS Damage Survey for Herington Area Tornado Event...

.Herington Area Tornado...

Rating:                 EF1
Estimated Peak Wind:    97 mph
Path Length /statute/:  17.7253 miles
Path Width /maximum/:   75 yards
Fatalities:             0
Injuries:               0

Start Date:             04/29/2022
Start Time:             08:06 PM CDT
Start Location:         3 NW Herington / Dickinson County / KS
Start Lat/Lon:          38.6984 / -96.9797

End Date:               04/29/2022
End Time:               08:28 PM CDT
End Location:           Parkerville / Morris County / KS
End Lat/Lon:            38.7634 / -96.6629

Survey Summary:
A severe thunderstorm rapidly developed shortly before 8 PM near
Hope, Kansas. Quickly thereafter, this storm developed a tornado just
northwest of Herington, KS. This tornado remained on the ground for nearly
18 miles to the northeast before dissipating near Parkerville,
Kansas. Sporadic EF-0 to EF-1 damage was surveyed in the area.


&&

EF Scale: The Enhanced Fujita Scale classifies tornadoes into the
following categories:

EF0...Weak......65 to 85 mph
EF1...Weak......86 to 110 mph
EF2...Strong....111 to 135 mph
EF3...Strong....136 to 165 mph
EF4...Violent...166 to 200 mph
EF5...Violent...>200 mph

NOTE:
The information in this statement is preliminary and subject to
change pending final review of the event and publication in NWS
Storm Data.

 

 

Edited by snowlover2
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This tiny cell popping in West Central IL would be my target storm, right in the area where HRRR has the strongest storm developing, discrete for now. I'm in the tornado watch but kind of have doubts about the severe threat in the SE of the state

 

Screenshot_20220430-153741_RadarScope.jpg

Edited by Neoncyclone
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Quote
Mesoscale Discussion 0597
   NWS Storm Prediction Center Norman OK
   0320 PM CDT Sat Apr 30 2022

   Areas affected...Northern Illinois into southern Wisconsin.

   Concerning...Tornado Watch 163...

   Valid 302020Z - 302145Z

   The severe weather threat for Tornado Watch 163 continues.

   SUMMARY...The severe weather threat continues within watch 163.

   DISCUSSION...Storm strengthening has been a slow process this
   afternoon, but have started to show greater intensity over the past
   half an hour as cooling temperatures aloft overspread the region.
   There is uncertainty about the threat with the line of storms across
   north-central Illinois. These storms now show some broadly rotating
   updrafts within the line and have a reflectivity appearance
   indicating embedded supercell structures. However, these storms are
   approaching the northeastern extent of the best instability and are
   not that intense yet. They also seem to be moving northeast quicker
   than the warm front. This would likely cause storms to interact with
   the warm front over the next hour. This could lead to a locally
   enhanced tornado threat, but given the lack of more robust updrafts,
   the internal pressure perturbations and low-level stretching may not
   be significant enough to support a tornadic threat. 

   Farther west, a few storms are starting to form along a boundary
   across western Illinois. Winds ahead of this activity are more
   veered and thus, the tornado threat should me minimal, but
   temperatures aloft are cooler in this region and instability/shear 
   would support supercell structures. Therefore, damaging winds and
   large hail is possible from the storm currently forming in Knox
   county and any additional storms which develop along this boundary.

   ..Bentley.. 04/30/2022

 

 

mcd0597.gif

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Confirmed tornado west of Chicago.

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BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Chicago/Romeoville
449 PM CDT Sat Apr 30 2022

The National Weather Service in Chicago has issued a

* Tornado Warning for...
  East central DuPage County in northeastern Illinois...
  Central Cook County in northeastern Illinois...

* Until 515 PM CDT.

* At 449 PM CDT, a tornado producing storm was located over Oak
  Brook, moving northeast at 25 mph.

  HAZARD...Damaging tornado.

  SOURCE...Radar confirmed tornado.

  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 tornadic storm will be near...
  Westchester, Northlake and Hillside around 500 PM CDT.
  Elmhurst, Maywood, Bellwood and Broadview around 505 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Melrose Park, Forest Park and River Forest.

Including the following interstates...
 I-88 between mile markers 137 and 140.
 I-290 between mile markers 13 and 20.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This Tornado Warning replaces the Severe Thunderstorm Warning issued
for the same area.

 

 

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  • Meteorologist

Might have our first decent severe weather day in the OV on Tuesday. Low somewhere in the vicinity... decent lapse rates. Not great directional shear but should be enough for supercells. Certainly sufficient winds aloft in the warm sector.

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image.thumb.png.f01925506af9a4da4bc57025a43873d4.png

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