Alert archive / Kentucky / Mesoscale Discussions in 2006

Mesoscale Discussion 528

April 16, 20064 states

The Storm Prediction Center issued this mesoscale discussion at Apr 16, 2006, 3:24 PM CDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Apr 16, 2006, 3:24 PM CDT (20:24 UTC)
Expired
Apr 16, 2006, 5:30 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 68 counties

Alexander County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Massac County, IL, Monroe County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Saline County, IL, Union County, IL, Washington County, IL, White County, IL, Williamson County, IL, Crawford County, IN, Dubois County, IN, Gibson County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Ballard County, KY, Breckinridge County, KY, Butler County, KY, Caldwell County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Graves County, KY, Grayson County, KY, Hancock County, KY, Hardin County, KY, Henderson County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Meade County, KY, Muhlenberg County, KY, Ohio County, KY, Trigg County, KY, Union County, KY, Webster County, KY, Bollinger County, MO, Cape Girardeau County, MO, Carter County, MO, Iron County, MO, Jefferson County, MO, Madison County, MO, Mississippi County, MO, Perry County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Stoddard County, MO, Washington County, MO, Wayne County, MO

The radar

The Paducah radar (KPAH), 58 km from the middle of the area, began a volume at 20:26 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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.4 hours before the alert went out and 272 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 12:00Z on 2006-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2006-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 205 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1349 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
205 m²/s²
0-3 km storm-relative helicity
203 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
Apr 15, 10:46 PM CDTMesoscale DiscussionSPCHancock, Henderson, Mercer, Rock Island, Warren119 min
Apr 15, 11:39 PM CDTMesoscale DiscussionSPCAdams, Pike66 min
Apr 16, 7:15 AM CDTMesoscale DiscussionSPCGallatin, Hardin, Johnson, Massac, Pope, Saline2 hr
Apr 16, 10:57 AM CDTMesoscale DiscussionSPCAdams, Boone, Brown, Bureau, Calhoun, Carroll and 33 more2 hr
Apr 16, 11:17 AM CDTTornado WatchSPCAdams, Bond, Brown, Bureau, Calhoun, Cass and 44 more8 hr
Apr 16, 12:20 PM CDTSevere Thunderstorm WatchSPCBoone, Carroll, Cook, DeKalb, DuPage, Ford and 15 more7 hr
Apr 16, 1:08 PM CDTMesoscale DiscussionSPCChampaign, Clark, Crawford, Douglas, Edgar, Ford and 3 more97 min
Apr 16, 1:18 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Bureau, Calhoun, Cass and 45 more57 min
Apr 16, 1:39 PM CDTTornado WatchSPCChampaign, Clark, Coles, Crawford, Cumberland, Douglas and 11 more7 hr
Apr 16, 3:43 PM CDTMesoscale DiscussionSPCBond, Bureau, Cass, Champaign, Christian, Clark and 49 more92 min
Apr 16, 3:50 PM CDTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Kane, Kendall and 6 more85 min
Apr 16, 6:14 PM CDTMesoscale DiscussionSPCChampaign, Clark, Clay, Coles, Crawford, Cumberland and 19 more2 hr
Apr 15, 9:14 PM CDTMesoscale DiscussionSPCAdair, Bates, Caldwell, Carroll, Cass, Chariton and 17 more91 min

Nearby

Mesoscale Discussions in Kentucky, 2006Mesoscale Discussions in Illinois, 2006Mesoscale Discussions in Missouri, 2006Every mesoscale discussion in 2006

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.