Alert archive / Illinois / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 154, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Aug 24, 1997, 8:45 PM CDT for Adams County, Illinois. It was in force for 60 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
- Aug 24, 1997, 8:45 PM CDT (01:45 UTC)
- Expired
- Aug 24, 1997, 9:45 PM CDT
- In force
- 60 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Adams County, IL
The radar
The St Louis radar (KLSX), 150 km from the middle of the area, began a volume at 01:45 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 |
|---|---|---|---|
| Aug 24, 8:58 PM CDT | Thunderstorm Wind 51 | Fowler, IL | A volunteer firefighter reported 60 mph wind gusts in Fowler along with minor tree damage. |
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, 1.8 hours before the alert went out and 190 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
- 1065 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 1016 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 250146 RRA SVRSTL ILC001-250245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 845 PM CDT SUN AUG 24 1997 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 945 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL ILLINOIS ...ADAMS COUNTY AT 843 PM...NWS DOPPLER CONTINUED TO INDICATED A SEVERE THUNDERSTORM WAS ABOUT 5 MILES SOUTHEAST OF MENDON IN ADAMS COUNTY. THE STORM WAS MOVING TO THE SOUTH AROUND 20 MPH AND WILL BE CAPABLE OF HAIL AROUND ONE INCH IN DIAMETER AND DAMAGING WIND GUSTS. COMMUNITIES IN THE PATH ARE THE QUINCY AIRPORT...BURTON...ADAMS... LIBERTY...RICHFIELD...PAYSON...AND PLAINVILLE. THIS IS A DANGEROUS STORM! BE PREPARED FOR DAMAGING WINDS...HAIL AND DEADLY LIGHTNING. STAY INSIDE AND AWAY FROM WINDOWS. SEEK SHELTER IN A STURDY BUILDING. REMEMBER SEVERE THUNDERSTORMS OFTEN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. METZE
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, Aug 24, 2:48 PM CDT, 5 hours 57 minutes before
ILZ058>060-064-065-069-070-074-079-095>102-MOZ009-010-018-019-026- 027-034>036-041-042-047>052-059>065-072>075-084-085-099-251100- SEVERE WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE ST LOUIS MO 245 PM CDT SUN AUG 24 1997 THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST LOUIS. AREAS INCLUDED ARE PARTS OF CENTRAL...NORTHEAST AND EAST CENTRAL MISSOURI...AND EXTREME SOUTHWEST ILLINOIS. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT OVER PORTIONS OF NORTHEAST MISSOURI AND MOST OF WEST CENTRAL ILLINOIS. THE THREAT AREA IS GENERALLY ALONG AND NORTH OF A LINE FROM COLUMBIA MISSOURI TO JUST SOUTH OF ST LOUIS TO CARBONDALE ILLINOIS. A LINE OF THUNDERSTORMS IS EXPECTED TO DEVELOP OVER EASTERN IOWA INTO CENTRAL ILLINOIS AND MOVE SOUTH INTO MISSOURI AND SOUTHERN ILLINOIS DURING THE EVENING. SOME OF THESE STORMS COULD BECOME SEVERE THIS EVENING. A SEVERE THUNDERSTORM WATCH IS ALREADY IN EVFECT FOR PORTIONS OF NORTH- EAST MISSOURI AND CENTRAL ILLINOIS UNTIL 800 PM THIS EVENING. STORM SPOTTERS AND EMERGENCY MANAGERS SHOULD MONITOR THE LATEST NWS STATEMENTS AND FORECASTS FOR POSSIBLE SKYWARN ACTION. PEDIGO
Special weather statement, Aug 24, 8:00 PM CDT, 45 minutes before
ILZ058>060-064-065-070-095>100-MOZ009-010-018-019-026-027-035-036- 250245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 800 PM CDT SUN AUG 24 1997 THE SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHEASTERN MISSOURI AND WEST CENTRAL ILLINOIS HAS EXPIRED. STRONG THUNDERSTORMS ARE POSSIBLE IN NORTHEAST MISSOURI AND WESTERN ILLINOIS THIS EVENING AND TONIGHT...BUT THE THREAT OF SEVERE THUNDERSTORMS HAS DIMINISHED WITH THE LOSS OF HEATING AFTER SUNSET. BECHTOLD
Special weather statement, Aug 24, 8:04 PM CDT, 41 minutes before
ILZ058>060-064-065-070-095>100-MOZ009-010-018-019-026-027-035-036- 250245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 800 PM CDT SUN AUG 24 1997 THE SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHEASTERN MISSOURI AND WEST CENTRAL ILLINOIS HAS EXPIRED. STRONG THUNDERSTORMS ARE POSSIBLE IN NORTHEAST MISSOURI AND WESTERN ILLINOIS THIS EVENING AND TONIGHT...BUT THE THREAT OF SEVERE THUNDERSTORMS HAS DIMINISHED WITH THE LOSS OF HEATING AFTER SUNSET. BECHTOLD
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 7:47 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 58 min |
| Aug 25, 5:02 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 28 min |
| Aug 25, 5:27 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 48 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1997Every severe thunderstorm warning in 1997
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.