Alert archive / Illinois / Tornado Watches in 1998

Tornado Watch 701

June 29, 199860 counties in Illinois; 7 counties in Indiana; Clinton County, Jackson County, Scott County, Iowa

The Storm Prediction Center issued this tornado watch at Jun 29, 1998, 3:15 PM CDT for 60 counties in Illinois; 7 counties in Indiana; Clinton County, Jackson County, Scott County, Iowa. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 29, 1998, 3:15 PM CDT (20:15 UTC)
Expired
Jun 29, 1998, 9:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 70 counties

Clinton County, IA, Jackson County, IA, Scott County, IA, Adams County, IL, Boone County, IL, Brown County, IL, Bureau County, IL, Carroll County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Coles County, IL, Cook County, IL, DeKalb County, IL, DeWitt County, IL, Douglas County, IL, DuPage County, IL, Edgar County, IL, Ford County, IL, Fulton County, IL, Grundy County, IL, Hancock County, IL, Henderson County, IL, Henry County, IL, Iroquois County, IL, Jo Daviess County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Knox County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Marshall County, IL, Mason County, IL, McDonough County, IL, McHenry County, IL, McLean County, IL, Menard County, IL, Mercer County, IL, Morgan County, IL, Moultrie County, IL, Ogle County, IL, Peoria County, IL, Piatt County, IL, Pike County, IL, Putnam County, IL, Rock Island County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Stark County, IL, Stephenson County, IL, Tazewell County, IL, Vermilion County, IL, Warren County, IL, Whiteside County, IL, Will County, IL, Winnebago County, IL, Woodford County, IL, Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN, Vermillion County, IN, Warren County, IN

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 29, 3:22 PM CDTTornado WarningDVNHenderson, Mercer63 min
Jun 29, 3:26 PM CDTSevere Thunderstorm WarningDVNRock Island64 min
Jun 29, 3:41 PM CDTTornado WarningDVNHenry64 min
Jun 29, 3:41 PM CDTTornado WarningDVNWarren64 min
Jun 29, 3:45 PM CDTTornado WarningDVNHancock65 min
Jun 29, 3:47 PM CDTTornado WarningDVNMcDonough63 min
Jun 29, 3:47 PM CDTTornado WarningILXKnox58 min
Jun 29, 4:02 PM CDTTornado WarningILXFulton58 min
Jun 29, 4:06 PM CDTTornado WarningILXPeoria, Stark69 min
Jun 29, 4:08 PM CDTTornado WarningILXSchuyler67 min
Jun 29, 4:27 PM CDTTornado WarningILXMason, Tazewell63 min
Jun 29, 4:27 PM CDTTornado WarningILXCass63 min
Jun 29, 4:30 PM CDTSevere Thunderstorm WarningLSXAdams, Brown65 min
Jun 29, 4:36 PM CDTTornado WarningILXWoodford69 min
Jun 29, 4:41 PM CDTTornado WarningILXMarshall64 min
Jun 29, 4:47 PM CDTTornado WarningILXLogan, McLean73 min
Jun 29, 4:47 PM CDTTornado WarningILXMenard, Sangamon73 min
Jun 29, 4:47 PM CDTTornado WarningILXMorgan, Scott73 min
Jun 29, 4:51 PM CDTFlash Flood WarningLSXAdams, Brown3 hr
Jun 29, 4:57 PM CDTSevere Thunderstorm WarningDVNPutnam48 min
Jun 29, 4:57 PM CDTTornado WarningILXChristian, DeWitt, Macon, Piatt78 min
Jun 29, 5:04 PM CDTSevere Thunderstorm WarningLSXPike61 min
Jun 29, 5:21 PM CDTTornado WarningILXMoultrie, Shelby69 min
Jun 29, 5:21 PM CDTTornado WarningILXChampaign, Douglas69 min
Jun 29, 5:23 PM CDTSevere Thunderstorm WarningLOTFord, Livingston52 min
Jun 29, 5:24 PM CDTTornado WarningILXTazewell36 min
Jun 29, 5:31 PM CDTTornado WarningILXEdgar, Vermilion74 min
Jun 29, 5:31 PM CDTTornado WarningILXColes, Cumberland74 min
Jun 29, 5:42 PM CDTSevere Thunderstorm WarningLOTKankakee48 min
Jun 29, 5:42 PM CDTSevere Thunderstorm WarningLOTGrundy, Will48 min
Jun 29, 6:05 PM CDTSevere Thunderstorm WarningINDVermillion, Warren50 min
Jun 29, 6:08 PM CDTSevere Thunderstorm WarningLOTFord37 min
Jun 29, 6:16 PM CDTTornado WarningILXChristian, Macon, Piatt29 min
Jun 29, 6:24 PM CDTTornado WarningDVNHancock51 min
Jun 29, 6:25 PM CDTSevere Thunderstorm WarningLOTBenton, Jasper, Lake, Newton50 min
Jun 29, 6:25 PM CDTSevere Thunderstorm WarningLOTPorter50 min
Jun 29, 6:28 PM CDTTornado WarningILXDouglas, Moultrie, Shelby47 min
Jun 29, 6:28 PM CDTTornado WarningILXChampaign47 min
Jun 29, 6:35 PM CDTTornado WarningILXColes, Cumberland, Edgar55 min
Jun 29, 6:35 PM CDTTornado WarningILXVermilion55 min
Jun 29, 6:44 PM CDTSevere Thunderstorm WarningILXFulton, Schuyler61 min
Jun 29, 7:02 PM CDTSevere Thunderstorm WarningINDVermillion33 min
Jun 29, 7:25 PM CDTSevere Thunderstorm WarningLSXBrown50 min

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.3 hours before the alert went out and 99 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 1998-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1998-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2020 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Jun 28, 10:00 PM CDTSevere Thunderstorm WatchSPCChampaign, Clark, Clay, Coles, Crawford, Cumberland and 14 more5 hr
Jun 29, 12:00 AM CDTSevere Thunderstorm WatchSPCAdams, Brown, Calhoun, Cass, Christian, DeWitt and 26 more6 hr
Jun 29, 1:00 PM CDTTornado WatchSPCHenderson, Jo Daviess, Mercer, Rock Island4 hr
Jun 29, 4:15 PM CDTTornado WatchSPCAdams, Hancock6 hr
Jun 29, 6:00 PM CDTTornado WatchSPCAlexander, Bond, Calhoun, Clark, Clay, Clinton and 36 more6 hr
Jun 29, 6:30 PM CDTTornado WatchSPCAdams, Allen, Bartholomew, Benton, Blackford, Boone and 71 more6 hr
Jun 29, 12:30 AM CDTSevere Thunderstorm WatchSPCAppanoose, Davis, Decatur, Fremont, Lee, Page and 4 more6 hr
Jun 29, 11:15 AM CDTTornado WatchSPCBoone, Bremer, Buena Vista, Butler, Calhoun, Carroll and 35 more6 hr
Jun 29, 3:45 PM CDTTornado WatchSPCFremont, Mills6 hr

Nearby

Tornado Watches in Illinois, 1998Tornado Watches in Indiana, 1998Tornado Watches in Iowa, 1998Every tornado watch in 1998

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.