Alert archive / Tennessee / Mesoscale Discussions in 2016
Mesoscale Discussion 596
The Storm Prediction Center issued this mesoscale discussion at May 10, 2016, 11:22 PM EDT for 22 counties in Tennessee. It was in force for 53 min.
The area
The outline as issued.
The facts
- Issued
- May 10, 2016, 11:22 PM EDT (03:22 UTC)
- Expired
- May 11, 2016, 12:15 AM EDT
- In force
- 53 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 22 counties
Anderson County, TN, Campbell County, TN, Cumberland County, TN, Davidson County, TN, DeKalb County, TN, Fentress County, TN, Jackson County, TN, Knox County, TN, Loudon County, TN, Morgan County, TN, Overton County, TN, Putnam County, TN, Rhea County, TN, Roane County, TN, Scott County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Union County, TN, Van Buren County, TN, White County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 104 km from the middle of the area, began a volume at 03:26 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 3.4 hours before the alert went out and 106 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
- 1257 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1467 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 276 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 6.3
The text
As transmitted.
241
ACUS11 KWNS 110322
SWOMCD
SPC MCD 110322
TNZ000-110415-
MESOSCALE DISCUSSION 0596
NWS STORM PREDICTION CENTER NORMAN OK
1022 PM CDT TUE MAY 10 2016
AREAS AFFECTED...PARTS OF MIDDLE/EASTERN TN
CONCERNING...SEVERE POTENTIAL...WATCH LIKELY
VALID 110322Z - 110415Z
PROBABILITY OF WATCH ISSUANCE...80 PERCENT
SUMMARY...SEVERE HAIL /AND PERHAPS LOCALLY DAMAGING WINDS/ MAY
CONTINUE THROUGH LATE EVENING AND POSSIBLY EARLY IN THE OVERNIGHT. A
NEW WATCH IS LIKELY FOR PORTIONS OF MIDDLE/EASTERN TN.
DISCUSSION...MULTIPLE SEVERE THUNDERSTORMS/SUPERCELLS CONTINUE TO
MOVE EAST-SOUTHEASTWARD ACROSS NORTHERN MIDDLE TN AS OF 03Z/1015 PM
CDT. SUFFICIENT FORCING FOR ASCENT/WARM ADVECTION SHOULD SUSTAIN
THESE STORMS EAST-SOUTHEASTWARD ACROSS ADDITIONAL PORTIONS OF
NORTHERN MIDDLE AND EVENTUALLY EASTERN TN THROUGH LATE EVENING INTO
THE EARLY OVERNIGHT. NEAR-SURFACE INHIBITION SHOULD CONTINUE TO
INCREASE...BUT MODERATE INSTABILITY/AMPLE SHEAR THROUGH THE
CLOUD-BEARING LAYER WILL CONTINUE TO SUPPORT SOME SUPERCELLS CAPABLE
OF HAIL/LOCALLY DAMAGING WINDS.
..GUYER/CORFIDI.. 05/11/2016
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...MRX...OHX...
LAT...LON 36118683 36538673 36498422 36298366 35478425 35658541
36118683SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 8:42 PM EDT | Mesoscale Discussion | SPC | Clay, Henry, Macon, Montgomery, Robertson, Stewart and 2 more | 93 min |
| May 10, 11:45 PM EDT | Severe Thunderstorm Watch | SPC | Anderson, Campbell, Cannon, Cheatham, Claiborne, Clay and 28 more | 7 hr |
| May 11, 3:40 AM EDT | Mesoscale Discussion | SPC | Cannon, Cheatham, Clay, Davidson, DeKalb, Jackson and 12 more | 95 min |
Nearby
Mesoscale Discussions in Tennessee, 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.