Alert archive / Illinois / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 3, NWS Chicago, IL
NWS Chicago, IL issued this severe thunderstorm warning at Mar 8, 2000, 6:51 PM CST for Lake County, Illinois. It was in force for 39 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 8, 2000, 6:51 PM CST (00:51 UTC)
- Expired
- Mar 8, 2000, 7:30 PM CST
- In force
- 39 min
- Issued by
- NWS Chicago, IL
- Area
- Whole counties
County Lake County, IL
The radar
The Chicago radar (KLOT), 85 km from the middle of the area, began a volume at 00:51 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 8, 7:00 PM CST | Hail 0.75 | Winthrop Harbor, IL |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 8, 2:30 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.9 hours before the alert went out and 233 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
- 2887 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCHI 090055 SVRCHI ILC097-090151- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHICAGO IL 651 PM CST WED MAR 8 2000 THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... LAKE COUNTY IN NORTHEAST ILLINOIS AND ADJACENT WATERS * UNTIL 730 PM CST * AT 655 PM CST A SEVERE THUNDERSTORM WAS LOCATED JUST SOUTHWEST OF WAUKEGAN MOVING NORTHEAST AT 50 MPH. THIS STORM HAS A HISTORY OF PRODUCING HAIL. * THE SEVERE THUNDERSTORM WILL BE MOVING NEAR WAUKEGAN AND THEN OUT OVER LAKE MICHIGAN. A TORNADO WATCH IS IN EFFECT FOR THIS AREA. REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES. BRUMER v
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 Mar 8, 3:00 PM CST, 3 hours 51 minutes earlier.
Area forecast discussion, Mar 8, 3:00 PM CST, 3 hours 51 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHICAGO IL 3 PM CST WED MAR 8 2000 SHORT TERM CHALLENGE IS WITH SEVERE WEATHER POSSIBLITIES. LIMITED DEEP MOISTURE AND SURFACE CONVERGENCE...TOGETHER WITH ONLY WEAK DIVERGENCE ALOFT AS MAIN JET STREAK WELL TO THE SOUTH...MAY LEAD TO ONLY ISOLATED THUNDERSTORMS THIS AFTERNOON INTO EARLY EVENING. CIRCULATION AROUND DEEP LOW WILL DRAW DOWN SHARPLY COLDER AIR BY LATE THURSDAY AFTERNOON...WITH TEMPS LIKELY FALLING ALL DAY. CLOUDS WILL LIKELY LINGER THROUGH FRIDAY. SHALLOW MOISTURE DOES NOT EXTEND INTO ANY LAYER BELOW MINUS 10C...SO THINK LIGHT SNOW UNLIKELY. SNOW CHANCES SATURDAY APPEAR DIMINISHED WITH LATEST AVN RUN...AS SURFACE LOW TRACKS FARTHER SOUTH. .CHI...TORNADO WATCH ALL IL ZONES UNTIL 8 PM. BROWNING
In the hours before
Special weather statement, Mar 8, 6:09 PM CST, 42 minutes before
ILZ003>006-008-010>014-019>023-032>033-039-INZ001>002-010>011-019- 090103- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 609 PM CST/709 PM EST WED MAR 8 2000 ...TORNADO WATCH CANCELLED FOR ALL OF NORTH CENTRAL ILLINOIS AND MOST OF NORTHEAST ILLINOIS... THE FOLLOWING NORTHEAST ILLINOIS COUNTIES REMAIN UNDER THE TORNADO WATCH UNTIL 800 PM CST THIS EVENING... MCHENRY...LAKE...COOK...KANE...AND DU PAGE ALL OTHER COUNTIES IN NORTH CENTRAL AND NORTHEAST ILLINOIS HAVE BEEN REMOVED FROM THE TORNADO WATCH AREA. BRUMER
Special weather statement, Mar 8, 6:15 PM CST, 36 minutes before
ILZ006-090115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 615 PM CST WED MAR 8 2000 ...SMALL HAIL FROM STORM MOVING THROUGH NORTHEAST ILLINOIS... QUARTER INCH TO HALF INCH HAIL WAS REPORTED FROM A STORM MOVING NORTHEAST THROUGH STREAMWOOD...BARRINGTON HILLS...AND SCHAUMBURG IN NORTHWEST COOK COUNTY AND WEST DUNDEE IN NORTHEAST KANE COUNTY . THIS STORM IS MOVING INTO LAKE COUNTY AND IS LIKELY TO CONTINUE DEPOSITING HAIL ACROSS THE AREA. BRUMER
Special weather statement, Mar 8, 6:43 PM CST, 8 minutes before
ILZ003>006-008-010>014-019>023-032>033-039-INZ001>002-010>011-019- 090103- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 609 PM CST/709 PM EST WED MAR 8 2000 ...TORNADO WATCH CANCELLED FOR ALL OF NORTH CENTRAL ILLINOIS AND MOST OF NORTHEAST ILLINOIS... THE FOLLOWING NORTHEAST ILLINOIS COUNTIES REMAIN UNDER THE TORNADO WATCH UNTIL 800 PM CST THIS EVENING... MCHENRY...LAKE...COOK...KANE...AND DU PAGE ALL OTHER COUNTIES IN NOR`TH CENTRAL AND NORTHEAST ILLINOIS HAVE BEEN REMOVED FROM THE TORNADO WATCH AREA. BRUMER
Nearby
Severe Thunderstorm Warnings in Illinois, 2000Every severe thunderstorm warning in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.