Alert archive / Illinois / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 150, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 22, 1998, 5:40 AM CDT for Marion County, Illinois. It was in force for 50 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 22, 1998, 5:40 AM CDT (10:40 UTC)
- Expired
- May 22, 1998, 6:30 AM CDT
- In force
- 50 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Marion County, IL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 22, 5:59 AM CDT | Thunderstorm Wind 56 | Salem, 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, 10.7 hours before the alert went out and 169 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.
107 WUUS1 KSTL 221041 RRA SVRSTL ILC121-221130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 540 AM CDT FRI MAY 22 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MARION COUNTY ILLINOIS IN SOUTHWESTERN ILLINOIS * UNTIL 630 AM CDT * AT 539 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM ST. ELMO TO VERNON... MOVING SOUTHEAST AT 35 MPH. * LOCATIONS THAT WILL BE AFFECTED... SALEM KINMUNDY SANDOVAL SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND GUSTS IN EXCESS OF 60 MPH...DAMAGING HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OR YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. DM/RP
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.
In the hours before
Special weather statement, May 22, 4:31 AM CDT, 1 hour 9 minutes before
ILZ095>097-MOZ036-221000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 431 AM CDT FRI MAY 22 1998 ...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR A PORTION OF WEST CENTRAL ILLINOIS AND EAST CENTRAL MISSOURI... SEVERE THUNDERSTORM WATCH 395 IS NO LONGER IN EFFECT FOR THE ILLINOIS COUNTIES OF ADAMS...BROWN...AND PIKE...AND FOR PIKE COUNTY MISSOURI AS WELL. THE THREAT OF SEVERE WEATHER HAS SUBSIDED IN THESE AREAS. TRUETT&
Special weather statement, May 22, 4:31 AM CDT, 1 hour 9 minutes before
ILZ095>097-MOZ036-221000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 431 AM CDT FRI MAY 22 1998 ...SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR A PORTION OF WEST CENTRAL ILLINOIS AND EAST CENTRAL MISSOURI... SEVERE THUNDERSTORM WATCH 395 IS NO LONGER IN EFFECT FOR THE ILLINOIS COUNTIES OF ADAMS...BROWN...AND PIKE...AND FOR PIKE COUNTY MISSOURI AS WELL. THE THREAT OF SEVERE WEATHER HAS SUBSIDED IN THESE AREAS. TRUETT&
Special weather statement, May 22, 5:09 AM CDT, 31 minutes before
MOZ009-010-018-019-026-027-034-035-221115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 509 AM CDT FRI MAY 22 1998 ...SEVERE THUNDERSTORM WATCH 393 HAS EXPIRED FOR PARTS OF NORTHEAST MISSOURI... SEVERE THUNDERSTORM WATCH 393 IN NORTHEAST MISSOURI HAS EXPIRED. ALTHOUGH ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS ARE EXPECTED TO RETURN TO THE AREA LATER THIS MORNING...AT THIS TIME THEY ARE EXPECTED TO REMAIN BELOW SEVERE LEVE$LS. THE FOLLOWING MISSOURI COUNTIES ARE NO LONGER IN A SEVERE THUNDERSTORM WATCH... SCOTLAND...CLARK...KNOX...LEWIS...SHELBY....MARION...MONROE...AND RALLS... ..END.. TRUETT
Special weather statement, May 22, 5:09 AM CDT, 31 minutes before
MOZ009-010-018-019-026-027-034-035-221115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 509 AM CDT FRI MAY 22 1998 ...SEVERE THUNDERSTORM WATCH 393 HAS EXPIRED FOR PARTS OF NORTHEAST MISSOURI... SEVERE THUNDERSTORM WATCH 393 IN NORTHEAST MISSOURI HAS EXPIRED. ALTHOUGH ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS ARE EXPECTED TO RETURN TO THE AREA LATER THIS MORNING...AT THIS TIME THEY ARE EXPECTED TO REMAIN BELOW SEVERE LEVE$LS. THE FOLLOWING MISSOURI COUNTIES ARE NO LONGER IN A SEVERE THUNDERSTORM WATCH... SCOTLAND...CLARK...KNOX...LEWIS...SHELBY....MARION...MONROE...AND RALLS... ..END.. TRUETT
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, 3:31 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene | 64 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, 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.