Alert archive / Indiana / Mesoscale Discussions in 2014

Mesoscale Discussion 1949

November 24, 20144 counties in Illinois; 20 counties in Indiana; 4 counties in Kentucky

The Storm Prediction Center issued this mesoscale discussion at Nov 24, 2014, 4:04 AM CST for 4 counties in Illinois; 20 counties in Indiana; 4 counties in Kentucky. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued
Nov 24, 2014, 4:04 AM CST (10:04 UTC)
Expired
Nov 24, 2014, 5:30 AM CST
In force
86 min
Issued by
the Storm Prediction Center
Chance of a watch
5%
All 28 counties

Gallatin County, IL, Hardin County, IL, Pope County, IL, Saline County, IL, Bartholomew County, IN, Brown County, IN, Crawford County, IN, Daviess County, IN, Dubois County, IN, Gibson County, IN, Jackson County, IN, Jennings County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Scott County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Crittenden County, KY, Henderson County, KY, Union County, KY, Webster County, KY

The radar

The Evansville,IN radar (KVWX), 38 km from the middle of the area, began a volume at 10:05 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

Nashville Metro, TN (KBNA), launched 00:00Z, 10.1 hours before the alert went out and 234 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.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2014-11-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2014-11-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 530 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
630 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
530 m²/s²
0-3 km storm-relative helicity
510 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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Nearby

Mesoscale Discussions in Indiana, 2014Mesoscale Discussions in Illinois, 2014Mesoscale Discussions in Kentucky, 2014Every mesoscale discussion in 2014

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.