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These were really some impressive looking tornadoes in southwest Ohio.
Mesoscale Discussion 0251
NWS Storm Prediction Center Norman OK
0425 PM CST Fri Mar 03 2023
Areas affected...Northern Indiana and southern Lower Michigan
Concerning...Heavy snow
Valid 032225Z - 040230Z
SUMMARY...Strong ascent across the northern Indiana and southern
Lower Michigan region, coupled with areas of freezing temperatures
at the surface, will support pockets of heavy snowfall rates through
mid evening.
DISCUSSION...Over the past 1-2 hours, a handful of surface
observations from far northeast IL, northern IN, and southern Lower
MI have reported moderate to heavy snowfall with visibility at or
below 1/4 mile at times. Such conditions have largely been contained
to areas where surface temperatures have experienced strong
evaporative cooling and fallen into the 30-32 F range. Many
locations that are currently above freezing are reporting dewpoint
values in the low 30s, suggesting that additional low-level
evaporative cooling to freezing is possible over the next few hours
- especially under areas of heavier precipitation. Aloft, strong
isentropic ascent through the 925-700 mb layer will be augmented by
a mid-level deformation zone to the north of the synoptic low. This
ascent is expected to persist through the late afternoon/evening
hours as a strong cyclone lifts to the northeast, and may promote
periods of organized snow banding. Furthermore, periodic lightning
flashes suggest adequate buoyancy exists over the region to support
localized bursts of heavier snow. Consequently, snowfall rates up to
2 inches/hour (possibly as high as 3 inches/hour) will be possible
where low-level temperatures are below freezing.
..Moore.. 03/03/2023
Seems like the strong cap played a role. Atmospheric conditions really killed off any cells that even tried to develop in front of the main line, and updrafts that formed within the QLCS got shredded as soon as they took shape.With such prominent soundings on Friday and severe indices actually observed on the SPC Meso site, I will be keenly interested as to why there wasn't an actual tornado outbreak on a high end scale. The values on Friday by 18Z were almost outrageous. Was it actually the warm nose at 600mb? or was it due to so much wind shear, it tore apart most updrafts?
I noticed this on Friday's SPC Meso Page and it was the first time I've seen EF4 Probs
View attachment 18591
I feel for you- my laptop died suddenly 3 days ago, but about all I lost was bookmarks as I've gotten in the habit of using online storgage and back-up for anything important.Power is still out here with no ETA, massive outages all across NW AL, this happened a few hundred yards away from the house at about 11:10; got a video of 60-70mph winds at home but can't post without internet lol
View attachment 18574
If anyone has a radar shot from GWX from 11:10am, please share as my phone broke and I have lost months of photos and radar imagery rip