Alert archive / Ohio / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 233

May 15, 200110 counties in Indiana; 8 counties in Michigan; 37 counties in Ohio

The Storm Prediction Center issued this severe thunderstorm watch at May 15, 2001, 7:00 PM EST for 10 counties in Indiana; 8 counties in Michigan; 37 counties in Ohio. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
May 15, 2001, 7:00 PM EST (00:00 UTC)
Expired
May 15, 2001, 11:00 PM EST
In force
4 hr
Issued by
the Storm Prediction Center
All 55 counties

Adams County, IN, Allen County, IN, DeKalb County, IN, Elkhart County, IN, Jay County, IN, LaGrange County, IN, Noble County, IN, Steuben County, IN, Wells County, IN, Whitley County, IN, Allegan County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Hillsdale County, MI, Kalamazoo County, MI, Saint Joseph County, MI, Van Buren County, MI, Allen County, OH, Athens County, OH, Auglaize County, OH, Champaign County, OH, Clark County, OH, Clinton County, OH, Darke County, OH, Defiance County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Fulton County, OH, Greene County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Highland County, OH, Hocking County, OH, Jackson County, OH, Logan County, OH, Madison County, OH, Marion County, OH, Meigs County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Paulding County, OH, Pickaway County, OH, Pike County, OH, Putnam County, OH, Ross County, OH, Shelby County, OH, Union County, OH, Van Wert County, OH, Vinton County, OH, Williams County, OH

The radar

The Northern Indiana radar (KIWX), 120 km from the middle of the area, began a volume at 00:03 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

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

IssuedProductOfficeCountiesLasted
May 15, 7:21 PM ESTSevere Thunderstorm WarningIWXLaGrange49 min
May 15, 7:25 PM ESTSevere Thunderstorm WarningIWXAdams55 min
May 15, 7:41 PM ESTSevere Thunderstorm WarningIWXElkhart49 min
May 15, 7:51 PM ESTSevere Thunderstorm WarningIWXAllen49 min
May 15, 7:56 PM ESTSevere Thunderstorm WarningIWXNoble54 min

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.0 hours before the alert went out and 183 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 00:00Z on 2001-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1147 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, Cncnati-Daytn, OH at 00:00Z on 2001-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.193958Sfc1 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
1147 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1684 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
177 m²/s²
Significant tornado parameter
0.2
Supercell composite
4.6

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 16, 11:30 AM ESTSevere Thunderstorm WatchSPCDearborn, Decatur, Franklin, Jefferson, Jennings, Ohio and 5 more6 hr
May 16, 3:15 PM ESTSevere Thunderstorm WatchSPCBartholomew, Benton, Boone, Brown, Carroll, Cass and 33 more5 hr
May 15, 9:00 PM ESTSevere Thunderstorm WatchSPCMenominee5 hr

Nearby

Severe Thunderstorm Watches in Ohio, 2001Severe Thunderstorm Watches in Indiana, 2001Severe Thunderstorm Watches in Michigan, 2001Every severe thunderstorm watch in 2001

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.