Alert archive / Indiana / Mesoscale Discussions in 2003

Mesoscale Discussion 988

May 14, 200313 counties in Illinois; 31 counties in Indiana; 4 counties in Kentucky

The Storm Prediction Center issued this mesoscale discussion at May 14, 2003, 9:24 PM CDT for 13 counties in Illinois; 31 counties in Indiana; 4 counties in Kentucky. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued
May 14, 2003, 9:24 PM CDT (02:24 UTC)
Expired
May 14, 2003, 11:00 PM CDT
In force
96 min
Issued by
the Storm Prediction Center
All 48 counties

Clark County, IL, Clay County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, Douglas County, IL, Edgar County, IL, Effingham County, IL, Jasper County, IL, Lawrence County, IL, Moultrie County, IL, Richland County, IL, Shelby County, IL, Bartholomew County, IN, Brown County, IN, Clark County, IN, Clay County, IN, Daviess County, IN, Dearborn County, IN, Decatur County, IN, Franklin County, IN, Greene County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Morgan County, IN, Ohio County, IN, Orange County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Ripley County, IN, Scott County, IN, Shelby County, IN, Sullivan County, IN, Switzerland County, IN, Vermillion County, IN, Vigo County, IN, Washington County, IN, Carroll County, KY, Henry County, KY, Oldham County, KY, Trimble County, KY

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.4 hours before the alert went out and 157 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, Lincoln, IL at 00:00Z on 2003-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1529 joules per kilogram.LCLEL10008507005003002001001 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, Lincoln, IL at 00:00Z on 2003-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.19395878Sfc1 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
1529 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1142 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
91 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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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 14, 8:15 PM CDTMesoscale DiscussionSPCFranklin, Gallatin, Hamilton, Hardin, Jackson, Jefferson and 12 more60 min
May 14, 8:30 PM CDTSevere Thunderstorm WatchSPCAlexander, Clay, Clinton, Edwards, Franklin, Gallatin and 21 more4 hr
May 14, 10:10 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Hardin, Jackson, Johnson, Massac and 5 more2 hr
May 14, 7:56 PM CDTMesoscale DiscussionSPCAdams, Benton, Blackford, Boone, Carroll, Cass and 28 more2 hr
May 15, 10:15 AM CDTSevere Thunderstorm WatchSPCClark, Crawford, Dearborn, Dubois, Floyd, Harrison and 12 more6 hr
May 15, 2:20 PM CDTMesoscale DiscussionSPCClark, Floyd, Harrison, Ohio, Switzerland85 min
May 15, 6:52 AM CDTMesoscale DiscussionSPCAdair, Allen, Barren, Bell, Boyle, Breathitt and 68 more2 hr
May 15, 12:22 PM CDTMesoscale DiscussionSPCAdair, Barren, Bell, Boyle, Breathitt, Casey and 37 more53 min
May 15, 12:50 PM CDTSevere Thunderstorm WatchSPCAdair, Barren, Bell, Boyle, Breathitt, Casey and 41 more5 hr
May 15, 4:42 PM CDTMesoscale DiscussionSPCAllen, Caldwell, Calloway, Christian, Graves, Logan and 9 more63 min
May 15, 5:10 PM CDTSevere Thunderstorm WatchSPCAllen, Christian, Logan, Monroe, Simpson, Todd and 1 more6 hr

Nearby

Mesoscale Discussions in Indiana, 2003Mesoscale Discussions in Illinois, 2003Mesoscale Discussions in Kentucky, 2003Every mesoscale discussion in 2003

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.