Alert archive / Illinois / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 70, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 2, 1996, 10:22 PM CDT for Monroe County, Saint Clair County, Illinois. It was in force for 38 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 2, 1996, 10:22 PM CDT (03:22 UTC)
- Expired
- May 2, 1996, 11:00 PM CDT
- In force
- 38 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Monroe County, IL, Saint Clair County, IL
The radar
The St Louis radar (KLSX), 66 km from the middle of the area, began a volume at 03:24 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 2, 11:00 PM CDT | Hail 0.75 | Marissa, 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
Lincoln, IL (KILX), launched 00:00Z, 3.4 hours before the alert went out and 234 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
- 1873 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 153 m²/s²
- 0-3 km storm-relative helicity
- 532 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 KSTL 030323 SVRSTL ILC133-163-030400- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1022 PM CDT THU MAY 2 1996 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1100 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ILLINOIS ...MONROE COUNTY...ST. CLAIR COUNTY AT 1020 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS DETECTING A SEVERE THUNDERSTORM JUST NORTH OF WATERLOO. IT WAS MOVING TO THE SOUTHEAST AT 30 MPH. IT WILL MOVE THROUGH WATERLOO AND NEW ATHENS. THIS IS A DANGEROUS STORM! BE PREPARED FOR DAMAGING WINDS...HAIL AND DEADLY LIGHTNING. STAY INSIDE AND AWAY FROM WINDOW0S. GKS/TRUETT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 10:56 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Randolph | 49 min |
| May 2, 11:02 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair, Washington | 43 min |
| May 3, 4:11 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 34 min |
| May 3, 4:11 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 34 min |
| May 3, 4:42 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Madison | 48 min |
| May 3, 4:59 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 46 min |
| May 3, 5:09 PM CDT | Tornado Warning | LSX | Madison | 36 min |
| May 3, 5:30 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton | 45 min |
| May 3, 6:03 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 42 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.