Alert archive / Illinois / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 49, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 8, 1993, 4:58 PM CDT for Madison County, Illinois. It was in force for 56 min.
The area
The counties it named.
The facts
- Issued
- Jun 8, 1993, 4:58 PM CDT (21:58 UTC)
- Expired
- Jun 8, 1993, 5:54 PM CDT
- In force
- 56 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Madison County, IL
The radar
The St Louis radar (KLSX), 69 km from the middle of the area, began a volume at 22:02 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.
The nearest sounding before it
Jefferson Prvg G, IN (KMDN), launched 12:00Z, 10.0 hours before the alert went out and 390 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
- 555 J/kg
- Mixed-layer CIN
- -123 J/kg
- Mixed-layer LCL
- 1164 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 156 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 082159 SVRSTL ILC119-082300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 458 PM CDT TUE JUN 8 1993 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHWEST ILLINOIS ...MADISON COUNTY AT 450 PM CDT...NWS DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS 5 MILES WEST OF ST LOUIS MOVING TO THE NORTHEAST AT 45 MPH. THEY WILL MOVE INTO THE EDWARDSVILLE AND COLLINSVILLE AREAS BY 515 PM. STRONG AND GUSTY DAMAGING WINDS AND HEAVY RAIN WILL ACCOMPANY THESE STORMS. TREES AND POWER LINES WERE REPORTED DOWN IN CHESTERFIELD AT 452 PM. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. WORK &
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, Jun 8, 2:32 PM CDT, 2 hours 26 minutes before
MOZ006-009-010-011-013-014-0812030 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 225 PM CDT TUE JUN 8 1993 ...STRONG THUNDERSTORMSD WERE SCATTERED ACROSS SOUTHERN AND EASTERN PARTS OF CENTRAL MISSOURI... ...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM... AT 220 PM...STRONG THUNDERSTORMS WERE SCATTERED FROM 40 MILES NORTHEAST OF COLUMBIA...NEAR BELLFLOWER...TO JEFFERSON CITY...TO 40 MILES NORTHEAST OF SPRINGFIELD NEAR LEBANON. THE STORMS WERE MOVING NORTHEAST AT 45 MILES AN HOUR. THE FAST MOVEMENT OF THE STORMS MAKES WIND NEAR 50 MILES AN HOUR POSSIBLE...ALONG WITH BRIEF HEAVY RAINS AND DANGEROUS LIGHTNING. THESE STORMS COULD BECOME SEVERE AT A MOMENTS NOTICE AND EVEN PRODUCE TORNADOES. REMAIN ALERT FOR THREATENING WEATHER AND SEEK IMMEDIATE SHELTER IF NECESSARY. STAY TUNED TO NWS RADIO FOR THE LATEST WEATHER INFORMATION. STANLEY
Special weather statement, Jun 8, 2:58 PM CDT, 2 hours before
MOZ010-011-014-017-082200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 258 PM CDT TUE JUN 8 1993 AT 255 PM CDT RADAR SHOWED STRONG THUNDERSTORMS WITH HEAVY RAIN WERE MOVING INTO CENTRAL MISSOURI. THE STRONGEST STORMS WERE OVER MARIES COUNTY AND SOUTHERN MONTGOMERY COUNTY. THEY WERE MOVING TO THE NORTHEAST AT 40 MPH. HEAVY RAIN STRONG AND GUSTY WINDS WITH SMALL HAIL WILL ACCOMPANY THESE STORMS AS THEY MOVE ACROSS PIKE LINCOLN AND WARREN COUNTIES BETWEEN 3 AND 330 PM THIS AFTERNOON. RADAR INDICATED THAT ONE HALF TO ONE INCH OF RAIN FELL ACROSS CENTRAL MISSOURI FROM THESE STORMS BETWEEN 2 AND 3 PM. WORK &
Special weather statement, Jun 8, 3:00 PM CDT, 1 hour 58 minutes before
MOZ006-009-010-011-013-014-082100- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE COLUMBIA MO 300 PM CDT TUE JUN 8 1993 ...STRONG THUNDERSTORMS WERE WIDESPREAD IN SOUTHEAST PARTS OF CENTRAL MISSOURI... ...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM... AT 300 PM...THUNDERSTORMS WITH VERY HEAVY RAIN WERE FROM 45 MILES EAST OF COLUMBIA...AROUND MONTGOMERY CITY...TO 30 MILES SOUTHWEST OF ROLLA... AROUND FT. LEONARD WOOD. THE STORMS WERE MOVING NORTHEAST AT 35 MPH AND WILL MOVE OVER WAYNESVILLE...OWENSVILLE AND HERMANN BETWEEN 3 AND 330PM. THE HEAVY RAINS FROM THESE STORMS MAY PRODUCE SOME LOCALIZED STREET FLOODING OR CAUSE SOME SMALL STREAMS TO RISE QUICKLY. STAY ALERT AND BE PREPARED TO MOVE TO SAFETY QUICKLY IF FLOODING IS REPORTED. LARM
Special weather statement, Jun 8, 3:00 PM CDT, 1 hour 58 minutes before
MOZ010-011-014-017-082200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 258 PM CDT TUE JUN 8 1993 AT 255 PM CDT RADAR SHOWED STRONG THUNDERSTORMS WITH HEAVY RAIN WERE MOVING INTO CENTRAL MISSOURI. THE STRONGEST STORMS WERE OVER MARIES COUNTY AND SOUTHERN MONTGOMERY COUNTY. THEY WERE MOVING TO THE NORTHEAST AT 40 MPH. HEAVY RAIN STRONG AND GUSTY WINDS WITH SMALL HAIL WILL ACCOMPANY THESE STORMS AS THEY MOVE ACROSS PIKE LINCOLN AND WARREN COUNTIES BETWEEN 3 AND 330 PM THIS AFTERNOON. RADAR INDICATED THAT ONE HALF TO ONE INCH OF RAIN FELL ACROSS CENTRAL MISSOURI FROM THESE STORMS BETWEEN 2 AND 3 PM. WORK &
Special weather statement, Jun 8, 3:15 PM CDT, 1 hour 43 minutes before
MOZ006-009-010-011-013-014-082100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 300 PM CDT TUE JUN 8 1993 ...STRONG THUNDERSTORMS WERE WIDESPREAD IN SOUTHEAST PARTS OF CENTRAL MISSOURI... ...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM... AT 300 PM...THUNDERSTORMS WITH VERY HEAVY RAIN WERE FROM 45 MILES EAST OF COLUMBIA...AROUND MONTGOMERY CITY...TO 30 MILES SUTHWEST OF ROLLA... AROUND FT. LEONARD WOOD. THE STORMS WERE MOVING NORTHEAST AT 35 MPH AND WILL MOVE OVER WAYNESVILLE...OWENSVILLE AND HERMANN BETWEEN 3 AND 330PM. THE HEAVY RAINS FROM THESE STORMS MAY PRODUCE SOME LOCALIZED STREET FLOODING OR CAUSE SOME SMALL STREAMS TO RISE QUICKLY. STAY ALERT AND BE PREPARED TO MOVE TO SAFETY QUICKLY IF FLOODING IS REPORTED. LARM
Special weather statement, Jun 8, 3:19 PM CDT, 1 hour 39 minutes before
MOZ006-009-010-011-013-014-082100- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE COLUMBIA MO 300 PM CDT TUE JUN 8 1993 ...STRONG THUNDERSTORMS WERE WIDESPREAD IN SOUTHEAST PARTS OF CENTRAL MISSOURI... ...A TORNADO WATCH IS IN EFFECT UNTIL 900 PM... AT 300 PM...THUNDERSTORMS WITH VERY HEAVY RAIN WERE FROM 45 MILES EAST OF COLUMBIA...AROUND MONTGOMERY CITY...TO 30 MILES SOUTHWEST OF ROLLA... AROUND FT. LEONARD WOOD. THE STORMS WERE MOVING NORTHEAST AT 35 MPH AND WILL MOVE OVER WAYNESVILLE...OWENSVILLE AND HERMANN BETWEEN 3 AND 330PM. THE HEAVY RAINS FROM THESE STORMS MAY PRODUCE SOME LOCALIZED STREET FLOODING OR CAUSE SOME SMALL STREAMS TO RISE QUICKLY. STAY ALERT AND BE PREPARED TO MOVE TO SAFETY QUICKLY IF FLOODING IS REPORTED. LARM
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 3:30 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 45 min |
| Jun 8, 3:30 PM CDT | Severe Thunderstorm Warning | LSX | Greene | 45 min |
| Jun 8, 4:17 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 58 min |
| Jun 8, 4:17 PM CDT | Severe Thunderstorm Warning | LSX | Greene | 58 min |
| Jun 8, 5:41 PM CDT | Tornado Warning | LSX | Bond, Madison | 49 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; radar from the NEXRAD Level II archive.