Alert archive / Illinois / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 138, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 14, 1997, 4:01 PM CDT for Marion County, Illinois. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 14, 1997, 4:01 PM CDT (21:01 UTC)
- Expired
- Jul 14, 1997, 4:45 PM CDT
- In force
- 44 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Marion County, IL
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.0 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
- 3436 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 931 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 38 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 142104 RRA SVRSTL ILC121-142145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 401 PM CDT MON JUL 14 1997 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL ILLINOIS ...MARION COUNTY AT 400 PM A SEVERE THUNDERSTORM WAS JUST SOUTHWEST OF VERNON MOVING SOUTHEAST AT 15 MPH. TOWNS IN THE PATH INCLUDE VERNON AND SALEM AND KUNMUNDY. DAMAGING WINDS ARE THE MAJOR THREAT EXPECTED FROM THIS STORM. JPK
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, Jul 14, 11:10 AM CDT, 4 hours 51 minutes before
MOZ042-041-050-010-048-072-062-059-084-018-019-065-052-085-027-047- 051-034-049-036-035-099-061-075-074-063-064-009-026-060-073-ILZ095- 064-096-098-069-065-058-099-059-100-070-102-060-097-079-101-074- 142300- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 1110 AM CDT MON JUL 14 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 EARLY THIS EVENING ACROSS EAST CENTRAL MISSOURI AND SOUTHWEST ILLINOIS INTO SOUTHEAST AND SOUTH CENTRAL MISSOURI...BASICALLY SOUTH OF A PITTSFIELD ILLINOIS TO HERMANN MISSOURI LINE. A COLD FRONT EXTENDING FROM NORTHEAST THROUGH CENTRAL MISSOURI WILL PUSH SLOWLY SOUTHEAST THIS AFTERNOON...TRIGGERING SCATTERED THUNDERSTORMS AS IT PUSHES INTO VERY MOIST AND UNSTABLE AIR. A FEW OF THE STORMS MAY BECOME SEVERE...WITH THE MAIN THREAT FROM DAMAGING WINDS. LOCALLY HEAVY RAIN WILL ALSO ACCOMPANY SOME OF THE STORMS. SKYWARN ACTIVATION MAY BE REQUIRED OVER PORTIONS OF THE COUNTY WARNING AREA THIS AFTERNOON AND OR EARLY THIS EVENING. AREA EMERGENCY MANAGERS SHOULD KEEP TUNED FOR LATER UPDATES CONCERNING THE SEVERE WEATHER POTENTIAL. GLASS
Special weather statement, Jul 14, 11:14 AM CDT, 4 hours 47 minutes before
MOZ042-041-050-010-048-072-062-059-084-018-019-065-052-085-027-047- 051-034-049-036-035-099-061-075-074-063-064-009-026-060-073-ILZ095- 064-096-098-069-065-058-099-059-100-070-102-060-097-079-101-074- 142300- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 1110 AM CDT MON JUL 14 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 EARLY THIS EVENING ACROSS EAST CENTRAL MISSOURI AND SOUTHWEST ILLINOIS INTO SOUTHEAST AND SOUTH CENTRAL MISSOURI...BASICALLY SOUTH OF A PITTSFIELD ILLINOIS TO HERMANN MISSOURI LINE. A COLD FRONT EXTENDING FROM NORTHEAST THROUGH CENTRAL MISSOURI WILL PUSH SLOWLY SOUTHEAST THIS AFTERNOON...TRIGGERING SCATTERED THUNDERSTORMS AS IT PUSHES INTO VERY MOIST AND UNSTABLE AIR. A FEW OF THE STORMS MAY BECOME SEVERE...WITH THE MAIN THREAT FROM DAMAGING WINDS. LOCALLY HEAVY RAIN WILL ALSO ACCOMPANY SOME OF THE STORMS. SKYWARN ACTIVATION MAY BE REQUIRED OVER PORTIONS OF THE COUNTY WARNING AREA THIS AFTERNOON AND OR EARLY THIS EVENING. AREA EMERGENCY MANAGERS SHOULD KEEP TUNED FOR LATER UPDATES CONCERNING THE SEVERE WEATHER POTENTIAL. GLASS
Special weather statement, Jul 14, 3:50 PM CDT, 11 minutes before
MOZ064-142345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 350 PM CDT MON JUL 14 1997 ...THE HEAT ADVISORY HAS EXPIRED... THE HEAT ADVISORY FOR THE CITY OF ST LOUIS HAS EXPIRED AND WILL NOT BE EXTENDED. NORTHWEST WINDS ASSOCIATED WITH A COLD FRONT PUSHING THROUGH THE ST LOUIS AREA WILL USHER MUCH DRIER AIR ACROSS THE REGION OVER THE NEXT 24 HOURS. DEW POINTS...WHICH HAVE BEEN IN THE 70S FOR THE LAST FEW DAYS...WILL FALL INTO THE 60S TONIGHT. THIS WILL RESULT IN MORE COMFORTABLE HUMIDITES FOR THE NEXT FEW DAYS. HIGH TEMPERATURES ON TUESDAY WILL BE AROUND 90 DEGREES AND ON TUESDAY WILL BE IN THE MIDDLE 90S. WITHOUT THE HIGH HUMIDITY...THE APPARENT TEMPERATURE WILL FEEL MUCH CLOSER TO THESE VALUES. GLASS
Special weather statement, Jul 14, 3:54 PM CDT, 7 minutes before
MOZ064-142345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 350 PM CDT MON JUL 14 1997 ...THE HEAT ADVISORY HAS EXPIRED... THE HEAT ADVISORY FOR THE CITY OF ST LOUIS HAS EXPIRED AND WILL NOT BE EXTENDED. NORTHWEST WINDS ASSOCIATED WITH A COLD FRONT PUSHING THROUGH THE ST LOUIS AREA WILL USHER MUCH DRIER AIR ACROSS THE REGION OVER THE NEXT 24 HOURS. DEW POINTS...WHICH HAVE BEEN IN THE 70S FOR THE LAST FEW DAYS...WILL FALL INTO THE 60S TONIGHT. THIS WILL RESULT IN MORE COMFORTABLE HUMIDITES FOR THE NEXT FEW DAYS. HIGH TEMPERATURES ON TUESDAY WILL BE AROUND 90 DEGREES AND ON TUESDAY WILL BE IN THE MIDDLE 90S. WITHOUT THE HIGH HUMIDITY...THE APPARENT TEMPERATURE WILL FEEL MUCH CLOSER TO THESE VALUES. GLASS
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 3:18 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette | 42 min |
| Jul 14, 3:54 PM CDT | Severe Thunderstorm Warning | LSX | Clinton | 36 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; the sounding from the Mesonet's radiosonde archive.