Alert archive / Indiana / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 49, NWS Chicago, IL

May 28, 2019Benton County, Indiana

NWS Chicago, IL issued this severe thunderstorm warning at May 28, 2019, 4:02 PM EDT for Benton County, Indiana. It was in force for 28 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: May 28, 2019, 4:02 PM EDT (20:02 UTC)
Expired: May 28, 2019, 4:30 PM EDT
In force: 28 min
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Tornado: Possible
Hail: 1.5 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 20:03 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
May 28, 1:01 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.0 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-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: 687 J/kg
Mixed-layer CIN: -169 J/kg
Mixed-layer LCL: 1145 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 136 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Chicago, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 27, 6:52 PM EDT, 21 hours 10 minutes earlier.

Area forecast discussion, May 27, 6:52 PM EDT, 21 hours 10 minutes before

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Hazardous weather outlook, May 27, 5:48 PM EDT, 22 hours 14 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 8:08 PM EDT	River Flood Warning	LOT	Will	70 hr
May 27, 8:13 PM EDT	River Flood Advisory	LOT	Will	3 days
May 27, 8:29 PM EDT	River Flood Advisory	LOT	Winnebago	36 hr
May 27, 8:37 PM EDT	River Flood Advisory	LOT	Winnebago	62 hr
May 27, 8:43 PM EDT	River Flood Advisory	LOT	Ogle	72 hr
May 27, 9:36 PM EDT	Marine Dense Fog Advisory	LOT		8 hr
May 28, 5:01 AM EDT	Flash Flood Watch	LOT	DeKalb, Ford, Grundy, Iroquois, Kankakee, Kendall and 5 more	24 hr
May 28, 10:25 AM EDT	River Flood Advisory	LOT	Will	25 hr
May 28, 3:06 PM EDT	Severe Thunderstorm Warning	LOT	Iroquois	42 min
May 28, 4:24 PM EDT	Special Marine Warning	LOT		81 min
May 27, 9:05 PM EDT	River Flood Watch	LOT	Porter	21 days
May 27, 9:05 PM EDT	River Flood Watch	LOT	Jasper, Porter	21 days

Nearby

Severe Thunderstorm Warnings in Indiana, 2019 Every 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.