Alert archive / Illinois / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 146, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 31, 1993, 6:46 PM CDT for Jefferson County, Perry County, Illinois. It was in force for 44 min.
The area
The counties it named.
The facts
- Issued
- Jul 31, 1993, 6:46 PM CDT (23:46 UTC)
- Expired
- Jul 31, 1993, 7:30 PM CDT
- In force
- 44 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Jefferson County, IL, Perry County, IL
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 12:00Z, 11.8 hours before the alert went out and 131 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
- 1134 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 31, 4:15 PM CDT, 2 hours 31 minutes before
MOZ012-312330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 415 PM CDT SAT JUL 31 1993 ...STRONG WINDS ARE HEADING TOWARDS ST LOUIS... A LINE OF STRONG TO SEVERE THUNDERSTORMS WAS MOVING OUT OF NORTHEAST MISSOURI AND TOWARDS ST LOUIS THIS AFTERNOON. THESE STORMS HAVE PRODUCED WIND DAMAGE AND GUSTS TO 60 MILES AN HOUR OVER AREAS NORTHWEST OF ST LOUIS. AS THESE STORMS MOVE SOUTHEAST...PEOPLE IN THE ST LOUIS AREA AND ESPECIALLY PEOPLE WORKING AROUND THE RIVER FLOODING SHOULD PREPARE FOR POSSIBLE SEVERE WEATHER AND STRONG WIND. THESE STORMS SHOULD ARRIVE IN THE AT LOUIS METRO AREA BETWEEN 530 AND 630 PM. ALL PEOPLE ON BOATS OR LEVEES HELPING WITH FLOOD PROBLEMS SHOULD BE ADVISED OF THESE APPROACHING STORMS AND BE READY TO FIND SHELTER. SHEA
Special weather statement, Jul 31, 4:17 PM CDT, 2 hours 29 minutes before
MOZ012-312330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 415 PM CDT SAT JUL 31 1993 ...STRONG WINDS ARE HEADING TOWARDS ST LOUIS... A LINE OF STRONG TO SEVERE THUNDERSTORMS WAS MOVING OUT OF NORTHEAST MISSOURI AND TOWARDS ST LOUIS THIS AFTERNOON. THESE STORMS HAVE PRODUCED WIND DAMAGE AND GUSTS TO 60 MILES AN HOUR OVER AREAS NORTHWEST OF ST LOUIS. AS THESE STORMS MOVE SOUTHEAST...PEOPLE IN THE ST LOUIS AREA AND ESPECIALLY PEOPLE WORKING AROUND THE RIVER FLOODING SHOULD PREPARE FOR POSSIBLE SEVERE WEATHER AND STRONG WIND. THESE STORMS SHOULD ARRIVE IN THE AT LOUIS METRO AREA BETWEEN 530 AND 630 PM. ALL PEOPLE ON BOATS OR LEVEES HELPING WITH FLOOD PROBLEMS SHOULD BE ADVISED OF THESE APPROACHING STORMS AND BE READY TO FIND SHELTER. SHEA
Special weather statement, Jul 31, 5:43 PM CDT, 1 hour 3 minutes before
MOZ012-010500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 543 PM CDT SAT JUL 31 1993 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR MOST OF SOUTHEAST MISSOURI... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM FOR PARTS OF NORTHWEST MISSOURI... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM FOR MUCH OF NORTHEST AND CENTRAL MISSOURI... A LINE OF SEVERE THUNDERSTORMS THAT HAS MOVED INTO EAST CENTRAL MISSOURI IS EXPECTED TO CONTINUE MOVING SOUTHEAST AND SEVERE THUNDERSTORMS WILL BE POSSIBLE OVER MUCH OF SOUTHEAST MISSOURI THIS EVENING. TUCKER
Special weather statement, Jul 31, 5:51 PM CDT, 55 minutes before
MOZ012-010500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 543 PM CDT SAT JUL 31 1993 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR MOST OF SOUTHEAST MISSOURI... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM FOR PARTS OF NORTHWEST MISSOURI... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 PM FOR MUCH OF NORTHEST AND CENTRAL MISSOURI... A LINE OF SEVERE THUNDERSTORMS THAT HAS MOVED INTO EAST CENTRAL MISSOURI IS EXPECTED TO CONTINUE MOVING SOUTHEAST AND SEVERE THUNDERSTORMS WILL BE POSSIBLE OVER MUCH OF SOUTHEAST MISSOURI THIS EVENING. TUCKER
Special weather statement, Jul 31, 6:35 PM CDT, 11 minutes before
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</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
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<p id="message2">
Please try again in a few minutes.
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</html>The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 10:41 PM CDT | Flash Flood Warning | LSX | Saint Louis | 3 hr |
| Jul 31, 3:06 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Shelby | 54 min |
| Jul 31, 4:02 PM CDT | Severe Thunderstorm Warning | LSX | Ralls | 43 min |
| Jul 31, 4:08 PM CDT | Severe Thunderstorm Warning | LSX | Audrain | 37 min |
| Jul 31, 4:14 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 46 min |
| Jul 31, 4:31 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 44 min |
| Jul 31, 5:02 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Warren | 43 min |
| Jul 31, 5:15 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 45 min |
| Jul 31, 5:15 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 45 min |
| Jul 31, 5:20 PM CDT | Tornado Warning | LSX | Saint Charles, Saint Louis | 40 min |
| Jul 31, 5:32 PM CDT | Tornado Warning | LSX | City of Saint Louis | 28 min |
| Jul 31, 5:37 PM CDT | Flash Flood Warning | LSX | Saint Louis, City of Saint Louis | 2 hr |
| Jul 31, 5:53 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 52 min |
| Jul 31, 6:30 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 45 min |
| Jul 31, 4:47 PM CDT | Severe Thunderstorm Warning | LSX | Greene | 43 min |
| Jul 31, 5:02 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 43 min |
| Jul 31, 5:40 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Saint Clair | 50 min |
| Jul 31, 5:56 PM CDT | Tornado Warning | LSX | Madison, Saint Clair | 34 min |
| Jul 31, 6:04 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Washington | 41 min |
| Jul 31, 6:13 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 47 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1993Every severe thunderstorm warning in 1993
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.