Alert archive / Illinois / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 144, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 22, 1998, 3:31 AM CDT for Calhoun County, Greene County, Illinois. It was in force for 64 min. 2 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
- May 22, 1998, 3:31 AM CDT (08:31 UTC)
- Expired
- May 22, 1998, 4:35 AM CDT
- In force
- 64 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Calhoun County, IL, Greene County, IL
The radar
The St Louis radar (KLSX), 64 km from the middle of the area, began a volume at 08:31 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 22, 4:05 AM CDT | Thunderstorm Wind 56 | Wrights, IL | |
| May 22, 4:10 AM CDT | Thunderstorm Wind 56 | Carrollton, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 22, 2:00 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 8.5 hours before the alert went out and 192 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
- 1615 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
416 WUUS1 KSTL 220832 RRA SVRSTL ILC013-061-220935- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 331 AM CDT FRI MAY 22 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CALHOUN COUNTY IN SOUTHWESTERN ILLINOIS GREENE COUNTY IN WEST CENTRAL ILLINOIS * UNTIL 435 AM CDT * AT 330 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM GRIGGSVILLE...MISSOURI TO BOWLING GREEN...ILLINOIS... MOVING SOUTHEAST AT 35 MPH. * LOCATIONS THAT WILL BE AFFECTED... KAMPSVILLE WHITE HALL CARROLLTON THE PRIMARY SEVERE WEATHER THREAT IS DAMAGING WINDS. MOVE QUICKLY TO A STURDY BUILDING AND STAY AWAY FROM DOORS AND WINDOWS. DM/RP
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 1:06 AM CDT | Severe Thunderstorm Warning | LSX | Jersey | 64 min |
| May 22, 1:20 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 65 min |
| May 22, 1:52 AM CDT | Severe Thunderstorm Warning | LSX | Madison | 63 min |
| May 22, 2:12 AM CDT | Severe Thunderstorm Warning | LSX | Jersey | 33 min |
| May 22, 2:17 AM CDT | Severe Thunderstorm Warning | LSX | Adams | 48 min |
| May 22, 2:34 AM CDT | Severe Thunderstorm Warning | LSX | Pike | 61 min |
| May 22, 2:59 AM CDT | Tornado Warning | LSX | Pike | 51 min |
| May 22, 3:50 AM CDT | Severe Thunderstorm Warning | LSX | Macoupin | 65 min |
| May 22, 4:08 AM CDT | Severe Thunderstorm Warning | LSX | Jersey | 47 min |
| May 22, 4:44 AM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 51 min |
| May 22, 5:02 AM CDT | Severe Thunderstorm Warning | LSX | Bond | 48 min |
| May 22, 5:20 AM CDT | Severe Thunderstorm Warning | LSX | Fayette | 50 min |
| May 22, 5:40 AM CDT | Severe Thunderstorm Warning | LSX | Marion | 50 min |
| May 22, 7:35 AM CDT | Severe Thunderstorm Warning | LSX | Adams | 35 min |
| May 22, 8:00 AM CDT | Severe Thunderstorm Warning | LSX | Brown, Pike | 50 min |
| May 22, 8:52 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin | 33 min |
| May 22, 9:22 AM CDT | Severe Thunderstorm Warning | LSX | Montgomery | 48 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1998Every severe thunderstorm warning in 1998
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.