Alert archive / Ohio / Mesoscale Discussions in 2016
Mesoscale Discussion 549
The Storm Prediction Center issued this mesoscale discussion at May 7, 2016, 7:14 PM EDT for 27 counties in Ohio. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- May 7, 2016, 7:14 PM EDT (23:14 UTC)
- Expired
- May 7, 2016, 8:45 PM EDT
- In force
- 91 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 27 counties
Ashland County, OH, Athens County, OH, Coshocton County, OH, Crawford County, OH, Delaware County, OH, Fairfield County, OH, Franklin County, OH, Guernsey County, OH, Harrison County, OH, Hocking County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Licking County, OH, Madison County, OH, Marion County, OH, Medina County, OH, Morgan County, OH, Morrow County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Pickaway County, OH, Richland County, OH, Stark County, OH, Tuscarawas County, OH, Wayne County, OH
The radar
The Cleveland radar (KCLE), 138 km from the middle of the area, began a volume at 23:14 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 12:00Z, 11.2 hours before the alert went out and 155 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
- 1583 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 191 m²/s²
- 0-3 km storm-relative helicity
- 388 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
152
ACUS11 KWNS 072314
SWOMCD
SPC MCD 072314
OHZ000-080045-
MESOSCALE DISCUSSION 0549
NWS STORM PREDICTION CENTER NORMAN OK
0614 PM CDT SAT MAY 07 2016
AREAS AFFECTED...CENTRAL/EASTERN OHIO
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 072314Z - 080045Z
PROBABILITY OF WATCH ISSUANCE...20 PERCENT
SUMMARY...SCATTERED THUNDERSTORM DEVELOPMENT IS UNDERWAY ACROSS THE
DISCUSSION AREA. A WW IS NOT ANTICIPATED FOR THIS ACTIVITY...BUT
CONVECTIVE TRENDS WILL BE MONITORED.
DISCUSSION...SCATTERED THUNDERSTORM ACTIVITY IS DEVELOPING IN THIS
AREA IN RESPONSE TO WEAK INSTABILITY /AROUND 500-700 J/KG MUCAPE/
AND DCVA ASSOCIATED WITH AN APPROACHING MID/UPPER TROUGH OVER
ONTARIO. DEEP LAYER SHEAR IS SUFFICIENT FOR SOME ORGANIZATION WITH
THIS ACTIVITY...ALTHOUGH ONLY ISOLATED SEVERE ACTIVITY /WIND AND OR
HAIL/ IS EXPECTED GIVEN THE WEAK INSTABILITY IN PLACE.
FURTHERMORE...THE ONSET OF NOCTURNAL BOUNDARY LAYER COOLING IS
EXPECTED TO LIMIT SURFACE BASED INSTABILITY...LEAVING ONLY A BRIEF
WINDOW /THROUGH ABOUT 01Z/ FOR ANY APPRECIABLE SEVERE THREAT WITH
THIS ACTIVITY. A WW IS NOT ANTICIPATED.
..COOK/CORFIDI.. 05/07/2016
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...PBZ...RLX...CLE...ILN...
LAT...LON 39438338 39858342 40668328 41128303 41318259 41308199
41068138 40728114 40308107 39868119 39488158 39298207
39318277 39438338Nearby
Mesoscale Discussions in Ohio, 2016Every mesoscale discussion in 2016
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.