Alert archive / Illinois / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 125, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 20, 1993, 6:20 PM CDT for Randolph County, Illinois. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Jul 20, 1993, 6:20 PM CDT (23:20 UTC)
- Expired
- Jul 20, 1993, 7:15 PM CDT
- In force
- 55 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Randolph County, IL
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 12:00Z, 11.3 hours before the alert went out and 147 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
- 1217 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 689 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- -32 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 20, 5:10 PM CDT, 1 hour 10 minutes before
MOZ010-011-014-202300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 510 PM CDT TUE JUL 20 1993 ...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 900 PM CDT FOR THE EAST AND SOUTH SECTIONS OF CENTRAL MISSOURI... AT 505 PM CDT WEATHER RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY SHOWERS OVER EAST AND SOUTH MISSOURI. THE BAND WAS ABOUT 25 MILES WIDE AND EAST OF A LINE EXTENDING FROM 55 MILES EAST OF COLUMBIA TO 55 MILES SOUTHEAST OF COLUMBIA...AROUND SULLIVAN...TO JUST SOUTH OF FT. LEONARD WOOD. THE THUNDERSTORMS WERE MOVING TO THE EAST AND SOUTHEAST AROUND 25 MILES AN HOUR AND NO LONGER PRESENT A THREAT OF SEVERE WEATHER TO CENTRAL MISSOURI. NO SEVERE WEATHER WAS REPORTED OR INDICATED BY RADAR IN CENTRAL MISSOURI DURING THE LAST HOUR. LB/GS
Special weather statement, Jul 20, 5:10 PM CDT, 1 hour 10 minutes before
MOZ010-011-014-202300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 510 PM CDT TUE JUL 20 1993 ...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 900 PM CDT FOR THE EAST AND SOUTH SECTIONS OF CENTRAL MISSOURI... AT 505 PM CDT WEATHER RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY SHOWERS OVER EAST AND SOUTH MISSOURI. THE BAND WAS ABOUT 25 MILES WIDE AND EAST OF A LINE EXTENDING FROM 55 MILES EAST OF COLUMBIA TO 55 MILES SOUTHEAST OF COLUMBIA...AROUND SULLIVAN...TO JUST SOUTH OF FT. LEONARD WOOD. THE THUNDERSTORMS WERE MOVING TO THE EAST AND SOUTHEAST AROUND 25 MILES AN HOUR AND NO LONGER PRESENT A THREAT OF SEVERE WEATHER TO CENTRAL MISSOURI. NO SEVERE WEATHER WAS REPORTED OR INDICATED BY RADAR IN CENTRAL MISSOURI DURING THE LAST HOUR. LB/GS
Local storm report, Jul 20, 5:23 PM CDT, 57 minutes before
MOZ010-011-014-210000-
PRELIMINARY STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA MO
530 PM CDT TUE JUL 20 1993
TIME COUNTY REPORT
205 PM BENTON VERY HEAVY SHOWERS WITH WINDS GUSTING TO
50 MPH JUST NORTHWEST OF WARSAW.
245 PM CAMDEN WINDS GUSTING TO 57 MPH NEAR HWY FF NORTHWEST
OF CAMDENTON.
300 PM CAMDEN TREES DOWN AND HEAVY SHOWERS ON HIGHWAYS 5 AND
7 IN CLIMAX SPRINGS.
315 PM CAMDEN SIGNS AND TREES DOWN NEAR OSAGE BEACH.
320 PM CAMDEN TREES BLOWN DOWN ON MOBIL HOME NEAR OSAGE
BEACH.
355 PM MONTGOMERY TBREES DOWN IN DANVILLE.
400 PM MONTGOMERY MARBLE-SIZED HAIL 2 MILES SOUTHWEST OF
MONTGOMERY CITY.
LBLocal storm report, Jul 20, 5:30 PM CDT, 50 minutes before
MOZ010-011-014-210000-
PRELIMINARY STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA MO
530 PM CDT TUE JUL 20 1993
TIME COUNTY REPORT
205 PM BENTON VERY HEAVY SHOWERS WITH WINDS GUSTING TO
50 MPH JUST NORTHWEST OF WARSAW.
245 PM CAMDEN WINDS GUSTING TO 57 MPH NEAR HWY FF NORTHWEST
OF CAMDENTON.
300 PM CAMDEN TREES DOWN AND HEAVY SHOWERS ON HIGHWAYS 5 AND
7 IN CLIMAX SPRINGS.
315 PM CAMDEN SIGNS AND TREES DOWN NEAR OSAGE BEACH.
320 PM CAMDEN TREES BLOWN DOWN ON MOBIL HOME NEAR OSAGE
BEACH.
355 PM MONTGOMERY TREES DOWN IN DANVILLE.
400 PM MONTGOMERY MARBLE-SIZED HAIL 2 MILES SOUTHWEST OF
MONTGOMERY CITY.
LBLocal storm report, Jul 20, 5:40 PM CDT, 40 minutes before
MOZ010-011-014-210000-
PRELIMINARY STORM REPORT...CORRECTED TO ADD INFO.
NATIONAL WEATHER SERVICE COLUMBIA MO
540 PM CDT TUE JUL 20 1993
TIME COUNTY REPORT
205 PM BENTON VERY HEAVY SHOWERS WITH WINDS GUSTING TO
50 MPH JUST NORTHWEST OF WARSAW.
245 PM CAMDEN WINDS GUSTING TO 57 MPH NEAR HWY FF NORTHWEST
OF CAMDENTON.
300 PM CAMDEN TREES DOWN AND HEAVY SHOWERS ON HIGHWAYS 5 AND
7 IN CLIMAX SPRINGS.
315 PM CAMDEN SIGNS AND TREES DOWN NEAR OSAGE BEACH.
320 PM CAMDEN TREES BLOWN DOWN ON MOBIL HOME NEAR OSAGE
BEACH.
355 PM MONTGOMERY TREES DOWN IN DANVILLE.
400 PM MONTGOMERY MARBLE-SIZED HAIL 2 MILES SOUTHWEST OF
MONTGOMERY CITY.
245 PM S. MILLER NUMEROUS TREES DOWN...2 TO 3 FOOT DIAMETER
TREE FELL ON HOUSE IN IBERIA. TIME IS
APPROXIMATE.
LBLocal storm report, Jul 20, 5:42 PM CDT, 38 minutes before
MOZ010-011-014-210000-
PRELIMINARY STORM REPORT...CORRECTED TO ADD INFO.
NATIONAL WEATHER SERVICE COLUMBIA MO
540 PM CDT TUE JUL 20 1993
TIME COUNTY REPORT
205 PM BENTON VERY HEAVY SHOWERS WITH WINDS GUSTING TO
50 MPH JUST NORTHWEST OF WARSAW.
245 PM CAMDEN WINDS GUSTING TO 57 MPH NEAR HWY FF NORTHWEST
OF CAMDENTON.
300 PM CAMDEN TREES DOWN AND HEAVY SHOWERS ON HIGHWAYS 5 AND
7 IN CLIMAX SPRINGS.
315 PM CAMDEN SIGNS AND TREES DOWN NEAR OSAGE BEACH.
320 PM CAMDEN TREES BLOWN DOWN ON MOBIL HOME NEAR OSAGE
BEACH.
355 PM MONTGOMERY TREES DOWN IN DANVILLE.
400 PM MONTGOMERY MARBLE-SIZED HAIL 2 MILES SOUTHWEST OF
MONTGOMERY CITY.
245 PM S. MILLER NUMEROUS TREES DOWN...2 TO 3 FOOT DIAMETER
TREE FELL ON HOUSE IN IBERIA. TIME IS
APPROXIMATE.
LBThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 3:11 PM CDT | Severe Thunderstorm Warning | LSX | Ralls | 49 min |
| Jul 20, 3:26 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 64 min |
| Jul 20, 4:08 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 52 min |
| Jul 20, 4:18 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Warren | 57 min |
| Jul 20, 4:41 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 64 min |
| Jul 20, 5:07 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 53 min |
| Jul 20, 5:20 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 55 min |
| Jul 20, 5:40 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Washington | 65 min |
| Jul 20, 5:45 PM CDT | Flash Flood Warning | LSX | Franklin, Jefferson, Saint Charles, Saint Louis | 2 hr |
| Jul 20, 5:45 PM CDT | Flash Flood Warning | LSX | City of Saint Louis | 2 hr |
| Jul 20, 6:20 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 55 min |
| Jul 20, 5:57 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 63 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.