Alert archive / Illinois / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 28, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Apr 19, 1996, 9:11 PM CDT for Stephenson County, Illinois. It was in force for 49 min. 4 reports 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
- Apr 19, 1996, 9:11 PM CDT (02:11 UTC)
- Expired
- Apr 19, 1996, 10:00 PM CDT
- In force
- 49 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
County Stephenson County, IL
The radar
The Quad Cities radar (KDVN), 112 km from the middle of the area, began a volume at 02:12 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 |
|---|---|---|---|
| Apr 19, 9:15 PM CDT | Thunderstorm Wind 52 | Freeport, IL | |
| Apr 19, 9:28 PM CDT | Hail 1.75 | Dakota, IL | |
| Apr 19, 9:28 PM CDT | Hail 1.75 | Rock City, IL | |
| Apr 19, 9:28 PM CDT | Hail 1.75 | Davis, 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 nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 2.2 hours before the alert went out and 107 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
- 92 J/kg
- Mixed-layer CIN
- -200 J/kg
- Mixed-layer LCL
- 1735 m above ground
- 0-6 km bulk shear
- 89 kt
- 0-1 km storm-relative helicity
- 497 m²/s²
- 0-3 km storm-relative helicity
- 621 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.3
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 Quad Cities, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 19, 7:05 PM CDT, 2 hours 6 minutes earlier.
Area forecast discussion, Apr 19, 7:05 PM CDT, 2 hours 6 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE QUAD CITIES IA IL 705 PM CDT FRI APR 19 1996 NO AFD TONIGHT DUE TO SEVERE WEATHER. WOLF
In the hours before
Local storm report, Apr 19, 6:53 PM CDT, 2 hours 18 minutes before
PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 651 PM CDT FRI APR 19 1996 TIME(CDT) .....CITY LOCATION..... ST ...EVENT/REMARKS... DATE(CDT) ....COUNTY LOCATION.... R0650 PM CAMBRIDGE IL 1.75 INCH HAIL 04/19/96 HENRY
Local storm report, Apr 19, 7:15 PM CDT, 1 hour 56 minutes before
PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 710 PM CDT FRI APR 19 1996 TIME(CDT) .....CITY LOCATION..... ST ...EVENT/REMARKS... DATE(CDT) ....COUNTY LOCATION.... 0702 PM 2 S BISHOP HILL IL TORNADO 04/19/96 HENRY
Local storm report, Apr 19, 7:19 PM CDT, 1 hour 52 minutes before
PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 716 PM CDT FRI APR 19 1996 TIME(CDT) .....CITY LOCATION..... ST ...EVENT/REMARKS... DATE(CDT) ....COUNTY LOCATION.... 0700 PM BISHOP HILL IL TORNADO 04/19/96 HENRY ROOF OFF HOUSE 0710 PM GALVA IL WIND DAMAGE 04/19/96 HENRY LOSS OF POWER
Local storm report, Apr 19, 7:21 PM CDT, 1 hour 50 minutes before
PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 719 PM CDT FRI APR 19 1996 TIME(CDT) .....CITY LOCATION..... ST ...EVENT/REMARKS... DATE(CDT) ....COUNTY LOCATION.... 0719 PM GALVA IL TORNADO 04/19/96 HENRY ROOF OFF OF TRAILER
Local storm report, Apr 19, 7:27 PM CDT, 1 hour 44 minutes before
PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 725 PM CDT FRI APR 19 1996 TIME(CDT) .....CITY LOCATION..... ST ...EVENT/REMARKS... DATE(CDT) ....COUNTY LOCATION.... 0714 PM VIOLA IA 0.75 INCH HAIL 04/19/96 LINN
Local storm report, Apr 19, 8:01 PM CDT, 1 hour 10 minutes before
PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 758 PM CDT FRI APR 19 1996 TIME(CDT) .....CITY LOCATION..... ST ...EVENT/REMARKS... DATE(CDT) ....COUNTY LOCATION.... 0740 PM TISKILWA IL TORNADO 04/19/96 BUREAU POWER POLE DOWN
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 7:15 PM CDT | Severe Thunderstorm Warning | DVN | Jones, Linn | 45 min |
| Apr 19, 7:49 PM CDT | Tornado Warning | DVN | Jackson | 41 min |
| Apr 19, 8:05 PM CDT | Tornado Warning | DVN | Clinton | 40 min |
| Apr 19, 7:04 PM CDT | Tornado Warning | DVN | Bureau | 41 min |
| Apr 19, 7:35 PM CDT | Tornado Warning | DVN | Bureau, Putnam | 40 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1996Every severe thunderstorm warning in 1996
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.