Alert archive / Illinois / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 349, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Nov 10, 1998, 4:10 AM CST for Macoupin County, Madison County, Illinois. It was in force for 65 min. 5 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
- Nov 10, 1998, 4:10 AM CST (10:10 UTC)
- Expired
- Nov 10, 1998, 5:15 AM CST
- In force
- 65 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Macoupin County, IL, Madison County, IL
The radar
The St Louis radar (KLSX), 77 km from the middle of the area, began a volume at 10:10 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 |
|---|---|---|---|
| Nov 10, 4:20 AM CST | Thunderstorm Wind 52 | Alton, IL | |
| Nov 10, 4:36 AM CST | Thunderstorm Wind 56 | Carlinville, IL | |
| Nov 10, 4:40 AM CST | Thunderstorm Wind 52 | Edwardsville, IL | |
| Nov 10, 4:45 AM CST | Thunderstorm Wind 58 | Nilwood, IL | |
| Nov 10, 4:50 AM CST | Thunderstorm Wind 52 | New Douglas, 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 |
|---|---|---|---|
| Nov 10, 1:15 AM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 10.2 hours before the alert went out and 167 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
- 550 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 561 m²/s²
- 0-3 km storm-relative helicity
- 703 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
804 WUUS1 KSTL 101013 RRA SVRSTL ILC117-119-133-163-101115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 410 AM CST TUE NOV 10 1998 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MACOUPIN COUNTY IN SOUTHWESTERN ILLINOIS MADISON COUNTY ILLINOIS IN SOUTHWESTERN ILLINOIS MONROE COUNTY ILLINOIS IN SOUTHWESTERN ILLINOIS ST CLAIR COUNTY IN SOUTHWESTERN ILLINOIS * UNTIL 515 AM CST * AT 407 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM CARROLLTON SOUTH TO JERSEYVILLE...CLAYTON AND HILLSBORO... MOVING EAST AT 50 MPH. * LOCATIONS THAT WILL BE AFFECTED... WATERLOO COLUMBIA BELLEVILLE COLLINSVILLE EDWARDSVILLE CARLINVILLE THE PRIMARY SEVERE WEATHER THREAT IS DAMAGING WINDS. MOVE QUICKLY TO A STURDY BUILDING AND STAY AWAY FROM DOORS AND WINDOWS. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. GKS/FG
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, Nov 10, 3:35 AM CST, 35 minutes before
MOZ019-027-034-035-042-049-050-101230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 335 AM CST TUE NOV 10 1998 ...THE TORNADO WATCH HAS BEEN CANCELLED FOR A PORTION OF CENTRAL AND NORTHEAST MISSOURI... THE TORNADO WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES... IN MISSOURI...LEWIS...MARION...RALLS...MONROE...AUDRAIN...CALLAWAY... AND OSAGE. SHOWERS WILL CONTINUE ACROSS THE REGION THROUGH THE EARLY MORNING HOURS. THE THREAT OF SEVERE THUNDERSTORMS OR TORNADOES HAS DIMINISHED AND NO MORE SEVERE WEATHER IS EXPECTED.
Special weather statement, Nov 10, 3:35 AM CST, 35 minutes before
MOZ019-027-034-035-042-049-050-101230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 335 AM CST TUE NOV 10 1998 ...THE TORNADO WATCH HAS BEEN CANCELLED FOR A PORTION OF CENTRAL AND NORTHEAST MISSOURI... THE TORNADO WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES... IN MISSOURI...LEWIS...MARION...RALLS...MONROE...AUDRAIN...CALLAWAY... AND OSAGE. SHOWERS WILL CONTINUE ACROSS THE REGION THROUGH THE EARLY MORNING HOURS. THE THREAT OF SEVERE THUNDERSTORMS OR TORNADOES HAS DIMINISHED AND NO MORE SEVERE WEATHER IS EXPECTED.
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 10, 1:42 AM CST | Tornado Warning | LSX | Calhoun, Pike | 48 min |
| Nov 10, 3:08 AM CST | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 62 min |
| Nov 10, 3:29 AM CST | Severe Thunderstorm Warning | LSX | Calhoun | 61 min |
| Nov 10, 3:45 AM CST | Severe Thunderstorm Warning | LSX | Greene, Jersey | 65 min |
| Nov 10, 4:10 AM CST | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 65 min |
| Nov 10, 4:38 AM CST | Severe Thunderstorm Warning | LSX | Bond, Montgomery | 62 min |
| Nov 10, 5:12 AM CST | Severe Thunderstorm Warning | LSX | Fayette | 63 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.