Alert archive / Illinois / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 129, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 23, 1993, 3:21 PM CDT for Greene County, Illinois. It was in force for 54 min.
The area
The counties it named.
The facts
- Issued
- Jul 23, 1993, 3:21 PM CDT (20:21 UTC)
- Expired
- Jul 23, 1993, 4:15 PM CDT
- In force
- 54 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Greene County, IL
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 12:00Z, 8.4 hours before the alert went out and 294 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
- 128 J/kg
- Mixed-layer CIN
- -181 J/kg
- Mixed-layer LCL
- 916 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 61 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 232022 SVRSTL ILC013-061-232115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 321 PM CDT FRI JUL 23 1993 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 415 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ILLINOIS ...NORTHERN CALHOUN COUNTY...GREENE COUNTY AT 320 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM JUST WEST OF KAMPSVILLE...OR 45 MILES NORTHWEST OF ST. LOUIS. THE STORM WAS MOVING EAST AT 20 MILES AN HOUR AND WILL BE EFFECTING THE TOWNS OF KAMPSVILLE AND CARROLLTON. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS. MORSE/TRUETT
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 23, 1:31 PM CDT, 1 hour 50 minutes before
MOZ007-009-010-011-012-013-014-015-016-017-019-ILZ009-011-231930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 131 PM CDT FRI JUL 23 1993 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR SOUTHWEST...CENTRAL AND EAST CENTRAL MISSOURI UNTIL 8PM... AT 115 PM...SHOWERS AND THUNDERSTORMS HAVE DEVELOPED IN EAST CENTRAL AND SOUTHEAST MISSOURI. MORE THUNDERSTORMS ARE EXPECTED TO DEVELOP THROUGH CENTRAL AND SOUTHWEST MISSOURI LATE THIS AFTERNOON AND EVENING. SOME OF THE STORMS MAY BE SEVERE...PRODUCING LARGE HAIL AND DAMAGING WINDS. BREIF PERIODS OF TORRENTIAL RAIN SHOULD ALSO BE EXPECTED WITH THESE STORMS. IF YOU LIVE IN THE WATCH AREA...BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TELEVISION STATION FOR THE LATEST STATEMENTS AND POSSIBLE WARNINGS. MORSE
Special weather statement, Jul 23, 1:33 PM CDT, 1 hour 48 minutes before
MOZ007-009-010-011-012-013-014-015-016-017-019-ILZ009-011-231930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 131 PM CDT FRI JUL 23 1993 ...A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR SOUTHWEST...CENTRAL AND EAST CENTRAL MISSOURI UNTIL 8PM... AT 115 PM...SHOWERS AND THUNDERSTORMS HAVE DEVELOPED IN EAST CENTRAL AND SOUTHEAST MISSOURI. MORE THUNDERSTORMS ARE EXPECTED TO DEVELOP THROUGH CENTRAL AND SOUTHWEST MISSOURI LATE THIS AFTERNOON AND EVENING. SOME OF THE STORMS MAY BE SEVERE...PRODUCING LARGE HAIL AND DAMAGING WINDS. BREIF PERIODS OF TORRENTIAL RAIN SHOULD ALSO BE EXPECTED WITH THESE STORMS. IF YOU LIVE IN THE WATCH AREA...BE ALERT TO RAPIDLY CHANGING WEBATHER CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TELEVISION STATION FOR THE LATEST STATEMENTS AND POSSIBLE WARNINGS. MORSE
Special weather statement, Jul 23, 2:00 PM CDT, 1 hour 21 minutes before
MOZ006-009-010-011-013-014-232000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 200 PM CDT FRI JUL 23 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8PM... ...SCATTERED THUNDERSTORMS WERE DEVELOPING IN CENTRAL MISSOURI... THUNDERSTORMS WITH VERY HEAVY RAIN WERE SCATTERED IN NORTHEAST PARTS OF CENTRAL MISSOURI FROM AROUND MEXICO TO NEAR HANNIBAL AND MOVING EAST AT 35 MPH. OTHER THUNERSTORTMS WITH VERY HEAVY RAIN WERE IN SOUTHEAST AREAS OF CENTRAL MISSOURI FROM 15 MILES SOUTH OF JEFFERSON CITY TO 20 MILES EAST OF JEFFERSON CITY...OR FROM NEAR VIENNA AND META TO AROUND LINN. THESE WERE ALSO MOVING EAST AT 35 MPH. PERSONS IN MEXICO...LADDONIA...VANDALIA...FREEBURG...LINN...OWENSVILLE ...WELLSVILLE...AND MONTGOMERY CITY...CAN EXPECT HEAVY RAIN...GUSTY WIND DANGEROUS LIGHTNING AND POSSIBLY SOME SMALL HAIL FROM THESE STORMS BETWEEN 2PM AND 3PM. LARM WSJP31RJAA ,P9^
Special weather statement, Jul 23, 2:02 PM CDT, 1 hour 19 minutes before
MOZ012-232000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 202 PM CDT FRI JUL 23 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR EAST CENTRAL MISSOURI AND PARTS OF WESTERN ILLINOIS UNTIL 8PM... AT 155 PM...NATIONAL WEATHER SERVICE RADAR INDICATED TWO STRONG THUNDERSTORMS IN ST. LOUIS COUNTY. ONE STORM WAS JUST SOUTHWEST OF DOWNTOWN ST. LOUIS AND THE OTHER WAS ALONG THE COUNTY LINE BETWEEN ST. CHARLES AND ST. LOUIS COUNTY. THE STORMS WERE MOVING TO THE EAST AT 20 MILES AN HOUR. RESIDENTS OF THE WESTERN AND SOUTHERN PART ST. LOUIS COUNTY AND ST. LOUIS CITY SHOULD BE PREPARED FOR BRIEF PERIODS OF TORRENTIAL RAIN... DANGEROUS LIGHTINING AND STRONG GUSRTY WINDS. THE SAFEST PLACE TO BE DURING A THUNDERSTORM IS INDOORS AND AWAY FROM WINDOWS. MORSE
Special weather statement, Jul 23, 2:04 PM CDT, 1 hour 17 minutes before
MOZ012-232000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 202 PM CDT FRI JUL 23 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR EAST CENTRAL MISSOURI AND PARTS OF WESTERN ILLINOIS UNTIL 8PM... AT 155 PM...NATIONAL WEATHER SERVICE RADAR INDICATED TWO STRONG THUNDERSTORMS IN ST. LOUIS COUNTY. ONE STORM WAS JUST SOUTHWEST OF DOWNTOWN ST. LOUIS AND THE OTHER WAS ALONG THE COUNTY LINE BETWEEN ST. CHARLES AND ST. LOUIS COUNTY. THE STORMS WERE MOVING TO THE EAST AT 20 MILES AN HOUR. RESIDENTS OF THE WESTERN AND SOUTHERN PART ST. LOUIS COUNTY AND ST. LOUIS CITY SHOULD BE PREPARED FOR BRIEF PERIODS OF TORRENTIAL RAIN... DANGEROUS LIGHTINING AND STRONG GUSRTY WINDS . THE SAFEST PLACE TO BE DURING A THUNDERSTORM IS INDOORS AND AWAY FROM WINDOWS. MORSE
Special weather statement, Jul 23, 2:06 PM CDT, 1 hour 15 minutes before
MOZ006-009-010-011-013-014-232000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 200 PM CDT FRI JUL 23 1993 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8PM... ...SCATTERED THUNDERSTORMS WERE DEVELOPING IN CENTRAL MISSOURI... THUNDERSTORMS WITH VERY HEAVY RAIN WERE SCATTERED IN NORTHEAST PARTS OF CENTRAL MISSOURI FROM AROUND MEXICO TO NEAR HANNIBAL AND MOVING EAST AT 35 MPH. OTHER THUNERSTORTMS WITH VERY HEAVY RAIN WERE IN SOUTHEAST AREAS OF CENTRAL MISSOURI FROM 15 MILES SOUTH OF JEFFERSON CITY TO 20 MILES EAST OF JEFFERSON CITY...OR FROM NEAR VIENNA AND META TO AROUND LINN. THESE WERE ALSO MOVING EAST AT 35 MPH. PERSONS IN MEXICO...LADDONIA...VANDALIA...FREEBURG...LINN...OWENSVILLE ...WELLSVILLE...AND MONTGOMERY CITY...CAN EXPECT HEAVY RAIN...GUSTY WIND DANGEROUS LIGHTNING AND POSSIBLY SOME SMALL HAIL FROM THESE STORMS BETWEEN 2PM AND 3PM. LARM
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 3:21 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun | 44 min |
| Jul 23, 4:00 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 45 min |
| Jul 23, 5:40 PM CDT | Flash Flood Warning | LSX | Monroe | 3 hr |
| Jul 23, 5:40 PM CDT | Flash Flood Warning | LSX | Randolph | 3 hr |
| Jul 23, 6:35 PM CDT | Flash Flood Warning | LSX | Perry | 2 hr |
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.