Alert archive / Indiana / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 83, NWS Chicago, IL

June 30, 2019Benton County, Indiana

NWS Chicago, IL issued this severe thunderstorm warning at Jun 30, 2019, 4:49 PM EDT for Benton County, Indiana. It was in force for 56 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
Jun 30, 2019, 4:49 PM EDT (20:49 UTC)
Expired
Jun 30, 2019, 5:45 PM EDT
In force
56 min
Issued by
NWS Chicago, IL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Benton County, IN

The radar

The Chicago radar (KLOT), 129 km from the middle of the area, began a volume at 20:48 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 30, 12:43 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.8 hours before the alert went out and 120 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 2019-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 873 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 2019-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
873 J/kg
Mixed-layer CIN
-144 J/kg
Mixed-layer LCL
1589 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

Open this sounding in Storm Lab

The office that day

Everything else NWS Chicago, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 29, 10:50 PM EDTSpecial Weather StatementLOTIroquois25 min
Jun 30, 1:07 PM EDTSpecial Marine WarningLOT3 hr
Jun 30, 1:21 PM EDTSevere Thunderstorm WarningLOTBoone, Lake, McHenry54 min
Jun 30, 1:29 PM EDTSpecial Weather StatementLOTWinnebago61 min
Jun 30, 2:02 PM EDTSevere Thunderstorm WarningLOTCook, DuPage, Kane, Lake, McHenry73 min
Jun 30, 2:13 PM EDTSevere Thunderstorm WarningLOTBoone, DeKalb, Kane, Kendall, Lee, McHenry and 2 more47 min
Jun 30, 2:46 PM EDTSevere Thunderstorm WarningLOTGrundy, Kankakee, Will44 min
Jun 30, 3:02 PM EDTSevere Thunderstorm WarningLOTDeKalb, Grundy, Kane, Kendall, LaSalle, Lee and 1 more43 min
Jun 30, 3:13 PM EDTSevere Thunderstorm WarningLOTCook, DuPage, Kankakee, Will77 min
Jun 30, 3:18 PM EDTAreal Flood AdvisoryLOTKendall4 hr
Jun 30, 3:25 PM EDTSpecial Marine WarningLOT2 hr
Jun 30, 3:28 PM EDTSevere Thunderstorm WarningLOTGrundy, LaSalle, Livingston51 min
Jun 30, 3:31 PM EDTAreal Flood AdvisoryLOTGrundy, Will4 hr
Jun 30, 3:43 PM EDTSevere Thunderstorm WarningLOTFord, Livingston62 min
Jun 30, 3:54 PM EDTAreal Flood AdvisoryLOTKankakee, Will3 hr
Jun 30, 4:01 PM EDTSevere Thunderstorm WarningLOTFord, Iroquois, Kankakee44 min
Jun 30, 4:21 PM EDTSevere Thunderstorm WarningLOTFord, Iroquois54 min
Jun 30, 4:43 PM EDTSevere Thunderstorm WarningLOTIroquois32 min
Jun 30, 5:24 PM EDTAreal Flood AdvisoryLOTFord, Iroquois3 hr
Jun 30, 4:04 PM EDTSevere Thunderstorm WarningLOTJasper, Lake, Newton71 min
Jun 30, 5:12 PM EDTSevere Thunderstorm WarningLOTJasper, Newton33 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2019Every severe thunderstorm warning in 2019

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.