Alert archive / Ohio / Mesoscale Discussions in 2025
Mesoscale Discussion 252
The Storm Prediction Center issued this mesoscale discussion at Mar 19, 2025, 11:04 PM EDT for Ohio County, Switzerland County, Indiana; 9 counties in Kentucky; 16 counties in Ohio. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- Mar 19, 2025, 11:04 PM EDT (03:04 UTC)
- Expired
- Mar 20, 2025, 12:30 AM EDT
- In force
- 86 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 59
All 27 counties
Ohio County, IN, Switzerland County, IN, Boone County, KY, Bracken County, KY, Campbell County, KY, Gallatin County, KY, Grant County, KY, Kenton County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Delaware County, OH, Fayette County, OH, Greene County, OH, Hamilton County, OH, Highland County, OH, Madison County, OH, Marion County, OH, Montgomery County, OH, Union County, OH, Warren County, OH
The radar
The Cincinnati radar (KILN), 27 km from the middle of the area, began a volume at 03:07 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 3.1 hours before the alert went out and 29 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1732 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
305
ACUS11 KWNS 200305
SWOMCD
SPC MCD 200304
OHZ000-KYZ000-INZ000-200430-
Mesoscale Discussion 0252
NWS Storm Prediction Center Norman OK
1004 PM CDT Wed Mar 19 2025
Areas affected...southeastern Indiana...southwestern Ohio...and a
small portion of northern Kentucky
Concerning...Severe Thunderstorm Watch 59...
Valid 200304Z - 200430Z
The severe weather threat for Severe Thunderstorm Watch 59
continues.
SUMMARY...Severe risk continues to gradually diminish across the WW
area.
DISCUSSION...Radar data continues to show a gradual decrease in
convective intensity with storms moving across Indiana/WW 69 over
the past couple of hours. This coincides with an associated,
gradual decrease in buoyancy, with RAP-based objective analysis now
showing mixed-layer CAPE below 500 J/kg across the WW area, and even
less with eastward extent toward central Ohio.
Expectations continue to be that storms will continue to gradually
weaken, and thus risk for severe-caliber gusts waning. While local
WW extension in area may be considered for a couple of counties in
western Ohio, overall risk should remain minimal for the remainder
of the evening.
..Goss.. 03/20/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...CLE...ILN...LMK...
LAT...LON 38448486 38808507 40208407 40658308 40228286 38528398
38448486SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 19, 8:48 PM EDT | Mesoscale Discussion | SPC | Adams, Allen, Bartholomew, Blackford, Brown, Dearborn and 35 more | 87 min |
| Mar 19, 8:56 PM EDT | Mesoscale Discussion | SPC | Crawford, Harrison, Perry, Spencer | 2 hr |
Nearby
Mesoscale Discussions in Ohio, 2025Mesoscale Discussions in Kentucky, 2025Mesoscale Discussions in Indiana, 2025Every mesoscale discussion in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.