Alert archive / Indiana / Mesoscale Discussions in 2017
Mesoscale Discussion 1754
The Storm Prediction Center issued this mesoscale discussion at Nov 5, 2017, 11:48 AM EST for 14 counties in Indiana. It was in force for 57 min.
The area
The outline as issued.
The facts
- Issued
- Nov 5, 2017, 11:48 AM EST (16:48 UTC)
- Expired
- Nov 5, 2017, 12:45 PM EST
- In force
- 57 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
Counties Bartholomew County, IN, Brown County, IN, Daviess County, IN, Dearborn County, IN, Decatur County, IN, Greene County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Ripley County, IN
The radar
The Indianapolis radar (KIND), 85 km from the middle of the area, began a volume at 16:52 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 4.8 hours before the alert went out and 224 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
- 214 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 522 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 187 m²/s²
- 0-3 km storm-relative helicity
- 209 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 5, 7:04 AM EST | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Cass, Clay, Clinton and 15 more | 2 hr |
| Nov 5, 12:08 PM EST | Tornado Watch | SPC | Adams, Bartholomew, Blackford, Boone, Brown, Carroll and 44 more | 7 hr |
| Nov 5, 12:09 PM EST | Mesoscale Discussion | SPC | Fountain, Vermillion, Vigo, Warren | 66 min |
| Nov 5, 1:36 PM EST | Mesoscale Discussion | SPC | Boone, Carroll, Clinton, Grant, Hamilton, Howard and 4 more | 54 min |
| Nov 5, 3:51 PM EST | Mesoscale Discussion | SPC | Gibson, Knox, Posey, Sullivan, Vanderburgh, Vigo and 1 more | 114 min |
| Nov 5, 4:50 PM EST | Tornado Watch | SPC | Gibson, Pike, Posey, Spencer, Vanderburgh, Warrick | 6 hr |
| Nov 5, 5:58 PM EST | Mesoscale Discussion | SPC | Bartholomew, Brown, Clark, Clay, Crawford, Dearborn and 28 more | 62 min |
| Nov 5, 6:31 PM EST | Severe Thunderstorm Watch | SPC | Bartholomew, Brown, Clark, Crawford, Daviess, Dearborn and 20 more | 6 hr |
Nearby
Mesoscale Discussions in Indiana, 2017Every mesoscale discussion in 2017
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.