Alert archive / Indiana / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 21, NWS Chicago, IL

June 25, 2002Newton County, Indiana; Kankakee County, Illinois

NWS Chicago, IL issued this severe thunderstorm warning at Jun 25, 2002, 2:41 PM CDT for Newton County, Indiana; Kankakee County, Illinois. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 25, 2002, 2:41 PM CDT (19:41 UTC)
Expired: Jun 25, 2002, 3:15 PM CDT
In force: 34 min
Issued by: NWS Chicago, IL
Area: Counties, with a storm outline in the text

Counties Kankakee County, IL, Newton County, IN

The radar

The Chicago radar (KLOT), 71 km from the middle of the area, began a volume at 19:44 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, 7.7 hours before the alert went out and 137 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: 998 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 1103 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KLOT 251941
SVRCHI
ILC091-INC111-252015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHICAGO IL
240 PM CDT TUE JUN 25 2002

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN KANKAKEE COUNTY IN NORTHEAST ILLINOIS
  NORTHERN NEWTON COUNTY IN NORTHWEST INDIANA

* UNTIL 315 PM CDT

* AT 240 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER
  HOPKINS PARK...OR ABOUT 7 MILES SOUTHEAST OF MOMENCE...MOVING
  NORTHEAST AT 15 MPH.

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  MOMENCE 
  LAKE VILLAGE

THIS SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING
 HAIL UP TO THE SIZE OF QUARTERS.
 DAMAGING WINDS GREATER THAN 60 MILES AN HOUR.
 VERY HEAVY RAINFALL...WHICH MAY CAUSE LOCALIZED FLOODING.


LAT...LON 4114 8771 4103 8770 4105 8730 4114 8742

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 5:55 PM CDT	Flash Flood Warning	LOT	Benton	3 hr
Jun 25, 5:56 PM CDT	Flash Flood Warning	LOT	Benton	2 hr
Jun 25, 11:42 AM CDT	Severe Thunderstorm Warning	LOT	Kendall	33 min
Jun 25, 12:10 PM CDT	Special Marine Warning	LOT		65 min
Jun 25, 12:10 PM CDT	Special Marine Warning	LOT		65 min
Jun 25, 1:15 PM CDT	Special Marine Warning	LOT		60 min
Jun 25, 1:15 PM CDT	Special Marine Warning	LOT		60 min
Jun 25, 1:15 PM CDT	Special Marine Warning	LOT		60 min
Jun 25, 2:49 PM CDT	Severe Thunderstorm Warning	LOT	Lee, Ogle	41 min
Jun 25, 2:57 PM CDT	Severe Thunderstorm Warning	LOT	Livingston	48 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2002 Severe Thunderstorm Warnings in Illinois, 2002 Every severe thunderstorm warning 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.