Alert archive / Illinois / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 97, NWS Paducah, KY
NWS Paducah, KY issued this severe thunderstorm warning at May 25, 1997, 11:27 PM CDT for Johnson County, Illinois. It was in force for 48 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
- May 25, 1997, 11:27 PM CDT (04:27 UTC)
- Expired
- May 26, 1997, 12:15 AM CDT
- In force
- 48 min
- Issued by
- NWS Paducah, KY
- Area
- Whole counties
County Johnson County, IL
The radar
The Paducah radar (KPAH), 45 km from the middle of the area, began a volume at 04:30 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 |
|---|---|---|---|
| May 25, 11:44 PM CDT | Thunderstorm Wind 52 | New Burnside, IL | A spotter reported trees over the road. |
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 nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 4.5 hours before the alert went out and 300 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
- 551 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
NWS Paducah, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at May 25, 12:38 PM CDT, 10 hours 49 minutes earlier.
Area forecast discussion, May 25, 12:38 PM CDT, 10 hours 49 minutes before
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Local storm report, May 25, 10:50 PM CDT, 37 minutes before
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</html>The office that day
Everything else NWS Paducah, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 4:52 PM CDT | Flash Flood Warning | PAH | Fulton | 2 hr |
| May 26, 4:59 PM CDT | Severe Thunderstorm Warning | PAH | Fulton | 31 min |
| May 25, 9:55 PM CDT | Severe Thunderstorm Warning | PAH | Perry | 65 min |
| May 26, 5:36 AM CDT | Severe Thunderstorm Warning | PAH | Butler | 69 min |
| May 26, 6:49 AM CDT | Severe Thunderstorm Warning | PAH | Mississippi, New Madrid | 41 min |
| May 26, 2:46 PM CDT | Severe Thunderstorm Warning | PAH | Wayne | 44 min |
| May 26, 3:10 PM CDT | Severe Thunderstorm Warning | PAH | Perry | 50 min |
| May 26, 3:27 PM CDT | Severe Thunderstorm Warning | PAH | Stoddard | 48 min |
| May 26, 3:59 PM CDT | Tornado Warning | PAH | Stoddard | 31 min |
| May 26, 4:19 PM CDT | Severe Thunderstorm Warning | PAH | New Madrid | 41 min |
| May 26, 4:52 PM CDT | Flash Flood Warning | PAH | Stoddard, Wayne | 2 hr |
| May 26, 5:38 PM CDT | Severe Thunderstorm Warning | PAH | Butler | 37 min |
| May 25, 10:01 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Perry | 44 min |
| May 25, 10:49 PM CDT | Severe Thunderstorm Warning | PAH | Jackson, Union, Williamson | 41 min |
| May 26, 3:53 PM CDT | Severe Thunderstorm Warning | PAH | Jackson | 52 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1997Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.