Alert archive / Indiana / Severe Thunderstorm Watches in 1997
Severe Thunderstorm Watch 660
The Storm Prediction Center issued this severe thunderstorm watch at Jul 26, 1997, 7:15 PM CDT for 5 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 26, 1997, 7:15 PM CDT (00:15 UTC)
- Expired
- Jul 27, 1997, 1:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 40 counties
Cook County, IL, DuPage County, IL, Kendall County, IL, Lake County, IL, Will County, IL, Allen County, IN, Blackford County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Huntington County, IN, Kosciusko County, IN, LaGrange County, IN, Lake County, IN, LaPorte County, IN, Marshall County, IN, Miami County, IN, Noble County, IN, Porter County, IN, Pulaski County, IN, Saint Joseph County, IN, Starke County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, Whitley County, IN, Allegan County, MI, Barry County, MI, Berrien County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Hillsdale County, MI, Jackson County, MI, Kalamazoo County, MI, Saint Joseph County, MI, Van Buren County, MI, Williams County, OH, Kenosha County, WI, Racine County, WI
The radar
The Grand Rapids radar (KGRR), 110 km from the middle of the area, began a volume at 00:16 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
4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 9:28 PM CDT | Severe Thunderstorm Warning | IWX | Allen | 62 min |
| Jul 26, 9:49 PM CDT | Severe Thunderstorm Warning | LOT | Fulton, Marshall | 56 min |
| Jul 26, 10:05 PM CDT | Severe Thunderstorm Warning | IND | Miami | 40 min |
| Jul 26, 10:25 PM CDT | Severe Thunderstorm Warning | IWX | Wabash | 50 min |
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 0.3 hours before the alert went out and 261 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
- 2837 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 1033 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 8:45 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Cook, DeKalb, DuPage, Kane, Kendall and 5 more | 4 hr |
| Jul 27, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Bureau, Cass, Champaign, Coles, DeWitt, Douglas and 34 more | 6 hr |
| Jul 27, 11:45 AM CDT | Severe Thunderstorm Watch | SPC | Allen, DeKalb, Elkhart, Fulton, Kosciusko, LaGrange and 7 more | 6 hr |
| Jul 27, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Allen, Bartholomew, Benton, Blackford, Boone and 37 more | 7 hr |
| Jul 27, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | Athens, Belmont, Carroll, Coshocton, Fairfield, Franklin and 22 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Indiana, 1997Severe Thunderstorm Watches in Michigan, 1997Severe Thunderstorm Watches in Illinois, 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.