Alert archive / Indiana / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 96, NWS Northern Indiana

July 8, 2010Allen County, Whitley County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Jul 8, 2010, 3:46 PM EDT for Allen County, Whitley County, Indiana. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 8, 2010, 3:46 PM EDT (19:46 UTC)
Expired
Jul 8, 2010, 4:15 PM EDT
In force
29 min
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Hail
0.5 in
Wind
60.0 mph

Counties Allen County, IN, Whitley County, IN

The radar

The Northern Indiana radar (KIWX), 44 km from the middle of the area, began a volume at 19:49 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

Lincoln, IL (KILX), launched 12:00Z, 7.8 hours before the alert went out and 300 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 12:00Z on 2010-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1207 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2010-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.1939Sfc1 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
1207 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
575 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
54 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 8, 1:51 PM EDTSpecial Weather StatementIWXCass, White24 min
Jul 8, 2:34 PM EDTSpecial Weather StatementIWXKosciusko41 min
Jul 8, 2:50 PM EDTSpecial Weather StatementIWXKosciusko25 min
Jul 8, 2:58 PM EDTAreal Flood AdvisoryIWXFulton, Kosciusko, Wabash92 min
Jul 8, 3:23 PM EDTSpecial Weather StatementIWXNoble, Wabash, Whitley37 min
Jul 8, 3:56 PM EDTSpecial Weather StatementIWXAllen, Wells34 min
Jul 8, 4:38 PM EDTSpecial Weather StatementIWXAdams, Allen, Blackford, Jay, Wells52 min
Jul 8, 6:44 PM EDTAreal Flood AdvisoryIWXPulaski, White2 hr
Jul 8, 5:56 PM EDTSevere Thunderstorm WarningIWXFulton19 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2010Every severe thunderstorm warning in 2010

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.