Alert archive / Illinois / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 66, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Jun 30, 1990, 10:34 AM CDT for Clark County, Illinois. It was in force for 56 min.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1990, 10:34 AM CDT (15:34 UTC)
- Expired
- Jun 30, 1990, 11:30 AM CDT
- In force
- 56 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County Clark County, IL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 12:00Z, 3.6 hours before the alert went out and 264 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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.
In the hours before
Special weather statement, Jun 30, 9:48 AM CDT, 46 minutes before
ILZ006-009-301530- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 945 AM CDT SAT JUN 30 1990 ...STRONG THUNDERSTORMS MOVING THROUGH WEST CENTRAL ILLINOIS... AT 940 AM CDT...RADAR INDICATED SCATTERED THUNDERSTORMS MOVING ACROSS THE MISSISSIPPI RIVER INTO HANCOCK AND EXTREME SOUTHERN HENDERSON COUNTIES. THE STRONGEST STORM WAS IN SOUTHEAST IOWA 20 MILES SOUTHWEST OF BURLINGTON IOWA. THE STORMS WERE MOVING SOUTHEAST AT 25 MILES AN HOUR. IN ADDITION...THUNDERSTORMS PRODUCING HEAVY RAIN HAD DEVELOPED IN MCDONOUGH AND SOUTHERN FULTON COUNTIES. VERY HEAVY RAIN...GUSTY WINDS AND DANGEROUS GROUND STROKES OF LIGHTNING CAN BE EXPECTED WITH THESE THUNDERSTORMS. MILLER/J LAST
Special weather statement, Jun 30, 10:32 AM CDT, 2 minutes before
ILZ009-010-301530- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 1030 AM CDT SAT JUN 30 1990 AT 1030AM CDT ANOTHER THUNDERSTORM PRODUCING TORRENTIAL RAIN WAS HEADING TOWARD SPRINGFIELD. IT WAS 25 MILES IN DIAMETER AND CENTERED 35 MILES NORTHWEST OF SPRINGFIELD. IT WILL BE IN THE SPRINGFIELD AREA IN THE HOUR BEFORE 11.30 AM CDT. PERSONS IN THE PATH OF THE STORM SHOULD EXPECT HEAVY RAIN...SMALL HAIL...DANGEROUS LIGHTNING AND GBUSTY WINDS. FS
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 8:55 AM CDT | Severe Thunderstorm Warning | ILX | Macoupin, Montgomery, Sangamon | 35 min |
| Jun 30, 11:34 AM CDT | Severe Thunderstorm Warning | ILX | Menard, Sangamon | 56 min |
| Jun 30, 1:46 PM CDT | Flash Flood Warning | ILX | Fulton, Mason, Peoria, Tazewell | 119 min |
| Jun 30, 3:30 PM CDT | Flash Flood Warning | ILX | Stephenson | 3 hr |
| Jun 30, 3:30 PM CDT | Flash Flood Warning | ILX | Boone, DeKalb | 3 hr |
| Jun 30, 3:52 PM CDT | Flash Flood Warning | ILX | Carroll, Ogle | 3 hr |
| Jun 30, 4:19 PM CDT | Flash Flood Warning | ILX | Peoria | 116 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1990Every severe thunderstorm warning in 1990
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.