MattPetrulli

Looks to be occluding and hopefully got cut off. Scanner reports coming in of collapsed structures and people trapped.

Moving into Downtown Dayton, may miss downtown barely to the north. Need it to lift. Still doing major damage.

New emergency includes Xenia and all of Dayton ...TORNADO EMERGENCY FOR MONTGOMERY COUNTY... The National Weather Service in Wilmington has issued a * Tornado Warning for... Northwestern Greene County in west central Ohio... Northeastern Montgomery County in west central Ohio... * Until 1145 PM EDT. * At 1059 PM EDT, a confirmed large and destructive tornado was observed near Trotwood, moving east at 35 mph. TORNADO EMERGENCY for MONTGOMERY COUNTY. This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

...TORNADO EMERGENCY FOR MONTGOMERY COUNTY... ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT FOR CENTRAL MONTGOMERY COUNTY... At 1056 PM EDT, a confirmed large and destructive tornado was located over Trotwood, moving east at 35 mph. TORNADO EMERGENCY for SECTIONS OF CENTRAL MONTGOMERY COUNTY. This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

Going over a lot of residential areas too...

Massive cc drop and PDS tornado warning for North Dayton including Dayton metro

60 dbz debris ball over Brookville, velocity hasn't updated in this picture

Looks like a debris ball over Brookville.

Cell approaching north Dayton looks realy mean on radar and is rapidly improving.

Strong couplet and TDS approaching Ludlow Falls, OH.

CC drop, N of Roll

Right as I post this Probability of Watch Issuance...80 percent SUMMARY...The threat for severe may be increasing across portions of central Kansas into south-central Nebraska. Initial discrete modes are expected, with large hail, damaging winds, and isolated tornadoes possible. Later in the evening, storms approaching from the west (in Severe Thunderstorm Watch 0265) may also pose a severe threat. The issuance of a WW is likely. DISCUSSION...Convective initiation has been noted along the Trego/Ellis County Kansas line within the last few minutes. Some deep-layer ascent appears to be glancing the area, with a small mid-level perturbation ejecting into the central Plains from Colorado, overspreading the dryline, where some low-level convergence is present. The ambient environment may be characterized by moderate to strong instability (with up to 3000 J/kg MLCAPE noted in northern Kansas), and strong deep-layer shear (effective bulk shear of 50-70 knots). Any storm that can mature and sustain itself in this environment may become supercellular. Given the recent increase of effective SRH to 200-300 m2/s2 associated with a strengthening low level jet (with enlarged, curved hodographs depicted by RAP forecast soundings), storms may also acquire strong low-level rotation, especially if a discrete mode is maintained. Such storms will have the highest potential for producing isolated tornadoes. Otherwise, storms will be capable of producing damaging wind gusts and large hail as they spread into central Nebraska. Sparse instances of very large hail also cannot be ruled out given the high amounts of available buoyancy in the -10 to -30C layer. Latest high resolution model data depicts an increase in storm coverage later this evening, especially in Nebraska, as high theta-e air is advected over a baroclinic zone. ..Squitieri/Hart.. 05/28/2019 ...Please see www.spc.noaa.gov for graphic product...

Very favorable conditions out ahead of a cell that has developed in KS. Great ZDR arc with nice hail core and already has signs of mid level rotation. Definitely one to watch if it sustains itself.

Was referring to this slightly east of Dyer about 10 minutes ago.

While there was a small TDS on Dyer in this scan, that BR spike doesn't match up with cc.

Confirmed tornado on our SE Chicago cell.

Doesn't look like a debris ball to me, cc and zdr don't match.

Classic BR look, but velocities on terminals and on LOT aren't impressive at all. Lets hope it stays that way.

Monee cell is hooking while on that OFB. Not good.

Looks to be on an OFB too, gotta watch this. Also turning right.

Yeah, this could be a significant event at least for Central-Eastern Kansas. Not a lot to dislike on this 18z NAM sounding for Tuesday evening.

I'm not getting radar data fine or warning data fine. Would appreciate if someone posted multiple polling links.

Climate change woulda been called if those failures did or didn’t occur.

Would argue 4/2/17 verified

To be honest, I don’t get blaming SPC when about 90% of the wx community and most reliable models were behind a major tornado outbreak today