Alert archive / Indiana / Severe Thunderstorm Watches in 2002

Severe Thunderstorm Watch 202

May 1, 200235 counties in Indiana; Boone County, Campbell County, Kenton County, Kentucky; 24 counties in Ohio

The Storm Prediction Center issued this severe thunderstorm watch at May 1, 2002, 11:45 PM EST for 35 counties in Indiana; Boone County, Campbell County, Kenton County, Kentucky; 24 counties in Ohio. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: May 1, 2002, 11:45 PM EST (04:45 UTC)
Expired: May 2, 2002, 5:00 AM EST
In force: 5 hr
Issued by: the Storm Prediction Center

All 62 counties

Bartholomew County, IN, Blackford County, IN, Boone County, IN, Brown County, IN, Clinton County, IN, Dearborn County, IN, Decatur County, IN, Delaware County, IN, Fayette County, IN, Franklin County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Jackson County, IN, Jay County, IN, Jennings County, IN, Johnson County, IN, Madison County, IN, Marion County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Ohio County, IN, Owen County, IN, Putnam County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Shelby County, IN, Tippecanoe County, IN, Tipton County, IN, Union County, IN, Wayne County, IN, Boone County, KY, Campbell County, KY, Kenton County, KY, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Darke County, OH, Delaware County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hamilton County, OH, Highland County, OH, Logan County, OH, Madison County, OH, Miami County, OH, Montgomery County, OH, Pickaway County, OH, Pike County, OH, Preble County, OH, Ross County, OH, Shelby County, OH, Union County, OH, Warren County, OH

The radar

The Indianapolis radar (KIND), 90 km from the middle of the area, began a volume at 04:47 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.

Warnings issued inside it

4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
May 2, 2:11 AM EST	Severe Thunderstorm Warning	ILN	Clark	64 min
May 2, 2:28 AM EST	Severe Thunderstorm Warning	ILN	Madison	47 min
May 2, 2:43 AM EST	Severe Thunderstorm Warning	ILN	Franklin	47 min
May 2, 2:57 AM EST	Tornado Warning	ILN	Fairfield, Franklin	48 min

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 4.8 hours before the alert went out and 132 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 93 J/kg
Mixed-layer CIN: -128 J/kg
Mixed-layer LCL: 1044 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 256 m²/s²
0-3 km storm-relative helicity: 311 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

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.

Issued	Product	Office	Counties	Lasted
May 1, 10:30 PM EST	Tornado Watch	SPC	Daviess, Dubois, Gibson, Jackson, Jennings, Knox and 7 more	6 hr
May 2, 7:30 AM EST	Severe Thunderstorm Watch	SPC	Crawford, Floyd, Harrison, Perry, Posey, Spencer and 2 more	5 hr
May 1, 8:00 PM EST	Tornado Watch	SPC	Anderson, Bath, Bell, Bourbon, Boyle, Breathitt and 45 more	4 hr
May 2, 8:45 AM EST	Tornado Watch	SPC	Adair, Anderson, Bath, Bell, Bourbon, Boyd and 63 more	4 hr
May 2, 12:30 PM EST	Severe Thunderstorm Watch	SPC	Allen, Barren, Bell, Clay, Clinton, Cumberland and 17 more	7 hr
May 2, 3:30 AM EST	Severe Thunderstorm Watch	SPC	Athens, Belmont, Fairfield, Guernsey, Harrison, Hocking and 10 more	4 hr

Nearby

Severe Thunderstorm Watches in Indiana, 2002 Severe Thunderstorm Watches in Ohio, 2002 Severe Thunderstorm Watches in Kentucky, 2002 Every severe thunderstorm watch in 2002

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.