Alert archive / Kentucky / Mesoscale Discussions in 2008

Mesoscale Discussion 197

February 11, 20084 states

The Storm Prediction Center issued this mesoscale discussion at Feb 11, 2008, 1:10 PM CST for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Feb 11, 2008, 1:10 PM CST (19:10 UTC)
Expired
Feb 11, 2008, 7:15 PM CST
In force
6 hr
Issued by
the Storm Prediction Center
All 90 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, White County, IL, Williamson County, IL, Crawford County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Harrison County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Adair County, KY, Anderson County, KY, Ballard County, KY, Barren County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Casey County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Edmonson County, KY, Grayson County, KY, Green County, KY, Hancock County, KY, Hardin County, KY, Hart County, KY, Henderson County, KY, Hopkins County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Livingston County, KY, Lyon County, KY, Marion County, KY, McCracken County, KY, McLean County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Muhlenberg County, KY, Nelson County, KY, Ohio County, KY, Shelby County, KY, Spencer County, KY, Taylor County, KY, Union County, KY, Warren County, KY, Washington County, KY, Webster County, KY, Woodford County, KY, Bollinger County, MO, Cape Girardeau County, MO, Carter County, MO, Crawford County, MO, Dent County, MO, Iron County, MO, Jefferson County, MO, Madison County, MO, Perry County, MO, Phelps County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Texas County, MO, Washington County, MO, Wayne County, MO

The radar

The Evansville,IN radar (KVWX), 44 km from the middle of the area, began a volume at 19:14 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.2 hours before the alert went out and 385 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, Cncnati-Daytn, OH at 12:00Z on 2008-02-11Temperature 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, Cncnati-Daytn, OH at 12:00Z on 2008-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.1939587897117136Sfc1 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
1231 m above ground
0-6 km bulk shear
81 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
181 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
Feb 11, 12:43 AM CSTMesoscale DiscussionSPCBarry, Jasper, Lawrence, McDonald, Newton, Stone4 hr
Feb 11, 6:58 AM CSTMesoscale DiscussionSPCBarry, Barton, Bollinger, Butler, Cape Girardeau, Carter and 32 more6 hr

Nearby

Mesoscale Discussions in Kentucky, 2008Mesoscale Discussions in Illinois, 2008Mesoscale Discussions in Missouri, 2008Every mesoscale discussion in 2008

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.