Alert archive / Illinois / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 94, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 30, 1993, 11:15 PM CDT for Adams County, Illinois. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1993, 11:15 PM CDT (04:15 UTC)
- Expired
- Jul 1, 1993, 12:15 AM CDT
- In force
- 60 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Adams County, IL
The radar
The St Louis radar (KLSX), 150 km from the middle of the area, began a volume at 04:18 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
Paducah/Barkley, KY (KPAH), launched 00:00Z, 4.3 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
- 3576 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1074 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 7.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 010417 SVRSTL ILC001-149-MOC127-010515- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1115 PM CDT WED JUN 30 1993 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1215 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN WEST CENTRAL ILLINOIS ...SOUTHERN ADAMS COUNTY...NORTHERN PIKE COUNTY IN NORTHEAST MISSOURI ...EASTERN MARION COUNTY AT 1115 PM...NWS DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTHWEST OF HANNIBAL. THIS STORM WAS MOVING EAST AT 20 MPH. PEOPLE IN THE TOWNS OF PALMYRA...HANNIBAL...EAST HANNIBAL...MARBLEHEAD...AND FALL CREEK ARE IN THE PATH OF THIS STORM. 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. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.N GLASS
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 30, 7:10 PM CDT, 4 hours 5 minutes before
MOZ006-009-010-011-013-014-010100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 710 PM CDT WED JUN 30 1993 ...STRONG THUNDERSTORMS WERE DEVELOPING OVER NORTH CENTRAL MISSOURI... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MOST OF CENTRAL MISSOURI UNTIL 10 PM... AT 710 PM...A BROAD BAND OF QUICKLY DEVELOPING THUNDERSTORMS EXTENDED FROM 30 MILES WEST OF KIRKSVILLE...TO 20 MILES EAST OF ST LOUIS. THERE HAVE BEEN NO REPORTS OF SEVERE WEATHER THUS FAR...BUT THESE STORMS WERE DEVELOPING VERY FAST AND WILL INTENSIFY OVER THE NEXT FEW HOURS. THE STORMS WERE MOVING EAST AT 25 MPH. LARGE HAIL...DAMAGING WINDS...BRIEF HEAVY RAINS...AND DANGEROUS LIGHTNING CAN BE EXPECTED WITH SOME OF THESE STORMS AS THEY MOVE ACROSS CENTRAL MISSOURI THIS EVENING. STAY TUNED TO WEATHER RADIO FOR FURTHER UPDATES OR POSSIBLE WARNINGS. REPORT SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE. . PERLOW
Special weather statement, Jun 30, 7:16 PM CDT, 3 hours 59 minutes before
MOZ006-009-010-011-013-014-010100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 710 PM CDT WED JUN 30 1993 ...STRONG THUNDERSTORMS WERE DEVELOPING OVER NORTH CENTRAL MISSOURI... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MOST OF CENTRAL MISSOURI UNTIL 10 PM... AT 710 PM...A BROAD BAND OF QUICKLY DEVELOPING THUNDERSTORMS EXTENDED FROM 30 MILES WEST OF KIRKSVILLE...TO 20 MILES EAST OF ST LOUIS. THERE HAVE BEEN NO REPORTS OF SEVERE WEATHER THUS FAR...BUT THESE STORMS WERE DEVELOPING VERY FAST AND WILL INTENSIFY OVER THE NEXT FEW HOURS. THE STORMS WERE MOVING EAST AT 25 MPH. LARGE HAIL...DAMAGING WINDS...BRIEF HEAVY RAINS...AND DANGEROUS LIGHTNING CAN BE EXPECTED WITH SOME OF THESE STORMS AS THEY MOVE ACROSS CENTRAL MISSOURI THIS EVENING. STAY TUNED TO WEATHER RADIO FOR FURTHER UPDATES OR POSSIBLE WARNINGS. REPORT SEVERE WEATHER TO YOUR NEAREST LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER S$ERVICE. . PERLOW
Special weather statement, Jun 30, 9:10 PM CDT, 2 hours 5 minutes before
MOZ006-009-010-011-013-014-010100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 910 PM CDT WED JUN 30 1993 ...SEVERE THUNDERSTORMS CONTINUE TO PLAGUE NORTH CENTRAL MISSOURI... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MOST OF CENTRAL MISSOURI UNTIL 10 PM... AT 910 PM...A BROAD BAND OF SCATTERED SHOWERS AND THUNDERSTORMS...SOME CARRYING LARGE HAIL...FUNNEL CLOUDS...AND DAMAGING WINDS CONTINUED TO RUMBLE ACROSS NORTH CENTRAL MISSOURI. THE STORMS WERE LOCATED NORTH OF A LINE THAT EXTENDED FROM JUST NORTH OF KANSAS CITY... TO NEAR MOBERLY... TO 30 MILES SOUTH OF THE QUINCY/HANNIBAL AREA. MOVEMENT OF THE STORMS WAS TO THE EAST AT 25 MPH. HEAVY DOWNPOURS ACOMMPANIED THESE STORMS AND WITH ADDITIONAL HEAVY RAINS ON THE WAY...LOCALIZED FLOODING WILL ALSO BECOME A PROBLEM. THE AREA OF SHOWERS WILL SLOWLY DRIFT SOUTHWARD...SO MOST OF THE NORTHERN THIRD OF THE STATE WILL BE AT RISK. THE AREA ALONG AND SOUTH OF INTERSTATE 70 REMAINED FREE OF RAIN AND WERE ENJOYING MOSTLY FAIR SKIES ALONG WITH WARM AND HUMID CONDITIONS. PERLOW
Special weather statement, Jun 30, 9:14 PM CDT, 2 hours 1 minute before
MOZ006-009-010-011-013-014-010100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 910 PM CDT WED JUN 30 1993 ...SEVERE THUNDERSTORMS CONTINUE TO PLAGUE NORTH CENTRAL MISSOURI... ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MOST OF CENTRAL MISSOURI UNTIL 10 PM... AT 910 PM...A BROAD BAND OF SCATTERED SHOWERS AND THUNDERSTORMS...SOME CARRYING LARGE HAIL...FUNNEL CLOUDS...AND DAMAGING WINDS CONTINUED TO RUMBLE ACROSS NORTH CENTRAL MISSOURI. THE STORMS WERE LOCATED NORTH OF A LINE THAT EXTENDED FROM JUST NORTH OF KANSAS CITY... TO NEAR MOBERLY... TO 30 MILES SOUTH OF THE QUINCY/HANNIBAL AREA. MOVEMENT OF THE STORMS WAS TO THE EAST AT 25 MPH. HEAVY DOWNPOURS ACOMMPANIED THESE STORMS AND WITH ADDITIONAL HEAVY RAINS ON THE WAY...LOCALIZED FLOODING WILL ALSO BECOME A PROBLEM. THE AREA OF SHOWERS WILL SLOWLY DRIFT SOUTHWARD...SO MOST OF THE NORTHERN THIRD OF THE STATE WILL BE AT RISK. THE AREA ALONG AND SOUTH OF INTERSTATE 70 REMAINED FREE OF RAIN AND WERE ENJOYING MOSTLY FAIR SKIES ALONG WITH WARM AND HUMID CONDITIONS. PERLOW
Special weather statement, Jun 30, 9:43 PM CDT, 1 hour 32 minutes before
MOZALL-010400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 943 PM CDT WED JUN 30 1993 ...SEVERE THUNDERSTORM WATCHES WERE NOW IN EFFECT FOR MOST OF THE NORTH AND CENTRAL MISSOURI UNTIL 3 AM... AT 940 AM...SEVERE THUNDERSTORM WATCHES HAD BEEN ISSUED FOR MOST OF NORTH AND CENTRAL MISSOURI. THESE WATCHES REPLACE WATCHES PREVIOUSLY OVER THE STATE. NWS DOPPLER RADAR CONTINUED TO SHOW SEVERE THUNDERSTORMS DEVELOPING OVER PORTIONS OF NORTHERN AND WESTERN MISSOURI. THESE STORMS WILL CONTINUE TO PRODUCE LARGE HAIL...DAMAGING WINDS AND VERY HEAVY RAIN. LOCALLIZED FLOODING HAS ALSO BEEN REPORTED WITH SOME OF THESE STORMS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TV BROADCASTS FOR THE LATEST INFORMATION. GOETSCH
Special weather statement, Jun 30, 9:44 PM CDT, 1 hour 31 minutes before
MOZALL-010400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 943 PM CDT WED JUN 30 1993 ...SEVERE THUNDERSTORM WATCHES WERE NOW IN EFFECT FOR MOST OF THE NORTH AND CENTRAL MISSOURI UNTIL 3 AM... AT 940 AM...SEVERE THUNDERSTORM WATCHES HAD BEEN ISSUED FOR MOST OF NORTH AND CENTRAL MISSOURI. THESE WATCHES REPLACE WATCHES PREVIOUSLY OVER THE STATE. NWS DOPPLER RADAR CONTINUED TO SHOW SEVERE THUNDERSTORMS DEVELOPING OVER PORTIONS OF NORTHERN AND WESTERN MISSOURI. THESE STORMS WILL CONTINUE TO PRODUCE LARGE HAIL...DAMAGING WINDS AND VERY HEAVY RAIN. LOCALLIZED FLOODING HAS ALSO BEEN REPORTED WITH SOME OF THESE STORMS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TV BROADCAhSTS FOR THE LATEST INFORMATION. GOETSCH
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 11:15 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 32 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.