Alert archive / Indiana / Severe Thunderstorm Watches in 1997
Severe Thunderstorm Watch 252
The Storm Prediction Center issued this severe thunderstorm watch at May 5, 1997, 1:45 PM CDT for 23 counties in Illinois; 38 counties in Indiana; 8 counties in Michigan. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 5, 1997, 1:45 PM CDT (18:45 UTC)
- Expired
- May 5, 1997, 7:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 69 counties
Champaign County, IL, Christian County, IL, Coles County, IL, Cook County, IL, DeWitt County, IL, Douglas County, IL, DuPage County, IL, Edgar County, IL, Ford County, IL, Grundy County, IL, Iroquois County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, McLean County, IL, Moultrie County, IL, Piatt County, IL, Vermilion County, IL, Will County, IL, Benton County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clinton County, IN, Elkhart County, IN, Fountain County, IN, Fulton County, IN, Grant County, IN, Hamilton County, IN, Hendricks County, IN, Howard County, IN, Huntington County, IN, Jasper County, IN, Kosciusko County, IN, LaGrange County, IN, Lake County, IN, LaPorte County, IN, Marion County, IN, Marshall County, IN, Miami County, IN, Montgomery County, IN, Morgan County, IN, Newton County, IN, Noble County, IN, Parke County, IN, Porter County, IN, Pulaski County, IN, Putnam County, IN, Saint Joseph County, IN, Starke County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Wabash County, IN, Warren County, IN, White County, IN, Whitley County, IN, Allegan County, MI, Berrien County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Kalamazoo County, MI, Saint Joseph County, MI, Van Buren County, MI
The radar
The Chicago radar (KLOT), 107 km from the middle of the area, began a volume at 18:44 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.
Warnings issued inside it
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 2:02 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Will | 43 min |
| May 5, 2:10 PM CDT | Severe Thunderstorm Warning | LOT | Cook | 50 min |
| May 5, 2:24 PM CDT | Severe Thunderstorm Warning | LOT | Kankakee | 51 min |
| May 5, 2:46 PM CDT | Severe Thunderstorm Warning | LOT | Porter | 29 min |
| May 5, 2:56 PM CDT | Severe Thunderstorm Warning | LOT | Lake | 34 min |
| May 5, 3:15 PM CDT | Severe Thunderstorm Warning | LOT | Jasper, Porter | 30 min |
| May 5, 3:31 PM CDT | Severe Thunderstorm Warning | LOT | LaPorte, Starke | 29 min |
| May 5, 3:45 PM CDT | Severe Thunderstorm Warning | GRR | Allegan | 65 min |
| May 5, 3:58 PM CDT | Severe Thunderstorm Warning | LOT | Benton | 32 min |
| May 5, 4:02 PM CDT | Severe Thunderstorm Warning | LOT | Marshall | 43 min |
| May 5, 4:34 PM CDT | Severe Thunderstorm Warning | ILX | Vermilion | 26 min |
| May 5, 4:47 PM CDT | Severe Thunderstorm Warning | GRR | Kalamazoo | 63 min |
| May 5, 5:29 PM CDT | Severe Thunderstorm Warning | GRR | Branch, Hillsdale | 61 min |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 6.8 hours before the alert went out and 95 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
- 1877 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 228 m²/s²
- 0-3 km storm-relative helicity
- 250 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
131 WWUS9 KMKC 051811 SEL2 MKC WW 051811 ILZ000-INZ000-MIZ000-LMZ000-060000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 252 STORM PREDICTION CENTER NORMAN OK 111 PM CDT MON MAY 5 1997 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR ALL OR PORTIONS OF NORTHERN AND CENTRAL ILLINOIS NORTHERN AND CENTRAL INDIANA SOUTHWEST LOWER MICHIGAN SOUTHERN LAKE MICHIGAN EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 145 PM UNTIL 700 PM CDT. HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 95 STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES EAST OF MATTOON ILLINOIS TO 25 MILES NORTH OF BENTON HARBOR MICHIGAN. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. DISCUSSION...LINE OF STRONG/SEVERE THUNDERSTORMS EXPECTED TO DEVELOP RAPIDLY ALONG COLD FRONT FROM SOUTHEASTERN WI TO WEST CENTRAL IL. AIRMASS HAS RAPIDLY DESTABILIZED IN ADVANCE OF THE FRONT AS STRONG/COLD UPPER TROF DROPS RAPIDLY SEWD FROM UPPER MS VALLEY. LOW FREEZING LEVELS SUPPORT CONSIDERABLE HAIL WITH STORMS ALONG WITH DAMAGGING WINDS. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION VECTOR 24040. ...HALES 392,0894 422,0881 422,0843 392,0861
Nearby
Severe Thunderstorm Watches in Indiana, 1997Severe Thunderstorm Watches in Illinois, 1997Severe Thunderstorm Watches in Michigan, 1997Every severe thunderstorm watch in 1997
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.