Alert archive / Illinois / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 112, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Nov 20, 1994, 6:57 PM CST for Madison County, Illinois. It was in force for 48 min.
The area
The counties it named.
The facts
- Issued
- Nov 20, 1994, 6:57 PM CST (00:57 UTC)
- Expired
- Nov 20, 1994, 7:45 PM CST
- In force
- 48 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 01:01 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, 1.0 hours before the alert went out and 222 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
- 1443 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 313 m²/s²
- 0-3 km storm-relative helicity
- 402 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 210105 RRA SVRSTL ILC119-210145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 657 PM CST SUN NOV 20 1994 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 745 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHWEST ILLINOIS ...NORTHERN MADISON COUNTY AT 700 PM CST...DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM OVER MADISON COUNTY...OR ABOUT 25 MILES NORTHEAST OF DOWNTOWN ST. LOUIS. THE SEVERE THUNDERSTORM WAS MOVING NORTHEAST AT 40 MPH AND WILL MOVE THROUGH THE TOWNS OF HAMEL AND WORDEN BETWEEN 710 AND 725 PM CST PEOPLE IN THESE TOWNS SHOULD SEEK SHELTER IMMEDIATELY. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. RP,
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, Nov 20, 5:34 PM CST, 1 hour 23 minutes before
MOZ084-099-075-074-073-210030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 534 PM CST SUN NOV 20 1994 ...STRONG THUNDERSTORMS MOVING THROUGH WASHINGTON...REYNOLDS AND IRON COUNTIES IN EAST CENTRAL MISSOURI... AT 535 PM CST...A NARROW LINE OF HEAVY SHOWERS AND THUNDERSTORMS WERE MOVING ACROSS CENTRAL WASHINGTON THROUGH CENTRAL IRON COUNTIES. THE STRONGEST THUNDERSTORM WAS LOCATED IN CENTRAL WASHINGTON COUNTY...25 MIL NORTHWEST OF FARMINGTON...OR 5 TO 8 MILES NORTHWEST OF POTOSI. THE STORMS WILL BE MOVING THROUGH THE TOWNS OF POTOSI...FARMINGTON AND IRONTON BETWEEN 555 AND 620 PM CST. GUSTY WINDS OF 40 TO 45 MILES AN HOUR...BLINDING RAINFALL AND LIGHTNING WILL ACCOMPANY THESE STORMS. THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 35 TO 40 MPH. RP
Special weather statement, Nov 20, 5:42 PM CST, 1 hour 15 minutes before
MOZ084-099-075-074-073-210030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 534 PM CST SUN NOV 20 1994 ...STRONG THUNDERSTORMS MOVING THROUGH WASHINGTON...REYNOLDS AND IRON COUNTIES IN EAST CENTRAL MISSOURI... AT 535 PM CST...A NARROW LINE OF HEAVY SHOWERS AND THUNDERSTORMS WERE MOVING ACROSS CENTRAL WASHINGTON THROUGH CENTRAL IRON COUNTIES. THE STRONGEST THUNDERSTORM WAS LOCATED IN CENTRAL WASHINGTON COUNTY...25 MIL NORTHWEST OF FARMINGTON...OR 5 TO 8 MILES NORTHWEST OF POTOSI. THE STORMS WILL BE MOVING THROUGH THE TOWNS OF POTOSI...FARMINGTON AND IRONTON BETWEEN 555 AND 620 PM CST. GUSTY WINDS OF 40 TO 45 MILES AN HOUR...BLINDING RAINFALL AND LIGHTNING WILL ANCCOMPANY THESE STORMS. THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 35 TO 40 MPH. RP
Special weather statement, Nov 20, 6:10 PM CST, 47 minutes before
ILZ058-099-059-049-210115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 610 PM CST SUN NOV 20 1994 ...SHOWERS AND THUNDERSTORMS MOVING INTO PARTS OF WEST CENTRAL ILLINOIS... AT 600 PM CST...A NEARLY SOLID NARROW LINE OF SHOWERS AND STRONG THUNDERSTORMS WERE ENTERING SCOTT..GREENE AND JERSEY COUNTIES IN WEST CENTRAL ILLINOIS. THE LINE OF STORMS WILL BE MOVING THROUGH THE TOWNS OF CARROLTON AND JERSEYVILLE BETWEEN 620 AND 640 PM CST. THERE HAS BEEN NO REPORTS OF SEVERE WEATHER...HOWEVER SURFACE REPORTING STATIONS AROUND THE ST. LOUIS AREA INDICATED WINDS GUSTING TO 45 MPH. MANY OF THESE STORMS WILL CONTINUE TO PRODUCE GUSTY WINDS OF 35 TO 45 MP .BRIEF HEAVY RAINFALL AND LIGHTNING. PEOPLE IN THESE COUNTIES SHOULD BE ALERT FOR STRONG WINDS AND RAINFALL REDUCING VISIBILITIES BELOW 500 FEET. THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MPH. RP
Special weather statement, Nov 20, 6:17 PM CST, 40 minutes before
ILZ058-099-059-049-210115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 610 PM CST SUN NOV 20 1994 ...SHOWERS AND THUNDERSTORMS MOVING INTO PARTS OF WEST CENTRAL ILLINOIS... AT 600 PM CST...A NEARLY SOLID NARROW LINE OF SHOWERS AND STRONG THUNDERSTORMS WERE ENTERING SCOTT..GREENE AND JERSEY COUNTIES IN WEST CENTRAL ILLINOIS. THE LINE OF STORMS WILL BE MOVING THROUGH THE TOWNS OF CARROLTON AND JERSEYVILLE BETWEEN 620 AND 640 PM CST. THERE HAS BEEN NO REPORTS OF SEVERE WEATHER...HOWEVER SURFACE REPORTING STATIONS AROUND THE ST. LOUIS AREA INDICATED WINDS GUSTING TO 45 MPH. MANY OF THESE STORMS WILL CONTINUE TO PRODUCE GUSTY WINDS OF 35 TO 45 MP .BRIEF HEAVY RAINFALL AND LIGHTNING. PEOPLE IN THESE COUNTIES SHOULD BE ALERT FOR STRONG WINDS AND RAINFALL REDUCING VISIBILITIES BELOW 500 FEET. THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MPH. RP
Special weather statement, Nov 20, 6:37 PM CST, 20 minutes before
MOZ076-061-075-074-063-064-ILZ058-099-059-100-102-079-101-210130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 640 PM CST SUN NOV 20 1994 ...STRONG THUNDERSTORMS MOVING ACROSS THE ST. LOUIS METRO AREA... AT 630 CST...A NARROW LINE OF STRONG THUNDERSTORMS EXTENDED FROM 30 MILEWEST OF SPRINGFIELD ILLINOIS THROUGH THE ST. LOUIS METRO AREA...AND SOUTH TO 20 MILES WEST OF FARMINGTON...WILL BE ENTERING THE METRO EAST AREA AND OTHER PARTS OF SOUTHWEST ILLINOIS. AT 619 PM CST LAMBERT FIELD IN ST. LOUIS REPORTED A WIND GUST OF 53 MPH. THE LINE OF STRONG THUNDERSTORMS WILL BE MOVING THROUGH THE BELLEVILLE.. ...EDWARDSVILLE AREA BETWEEN 645 AND 710 PM CST. MOTORIST TRAVELING THROUGH THE METRO EAST AREA SHOULD BE ALERT FOR STRONG AND GUSTY WINDS AND BRIEF HEAVY RAINFALL REDUCING VISIBILITIES BELOW 500 FEET. THESE STORMS WILL CONTINUE TO PRODUCE GUSTY WINDS OF 45 TO 55 MPH... BRIEF HEAVY RAINFALL AND DANGEROUS LIGHTNING. THE SOLID LINE OF SHOWERS AND THUNDERSTORMS WAS MOVING TO THE NORTHEAST AT 40 MPH. RP
Special weather statement, Nov 20, 6:40 PM CST, 17 minutes before
MOZ076-061-075-074-063-064-ILZ058-099-059-100-102-079-101-210130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 640 PM CST SUN NOV 20 1994 ...STRONG THUNDERSTORMS MOVING ACROSS THE ST. LOUIS METRO AREA... AT 630 CST...A NARROW LINE OF STRONG THUNDERSTORMS EXTENDED FROM 30 MILEWEST OF SPRINGFIELD ILLINOIS THROUGH THE ST. LOUIS METRO AREA...AND SOUTH TO 20 MILES WEST OF FARMINGTON...WILL BE ENTERING THE METRO EAST AREA AND OTHER PARTS OF SOUTHWEST ILLINOIS. AT 619 PM CST LAMBERT FIELD IN ST. LOUIS REPORTED A WIND GUST OF 53 MPH. THE LINE OF STRONG THUNDERSTORMS WILL BE MOVING THROUGH THE BELLEVILLE.. ...EDWARDSVILLE AREA BETWEEN 645 AND 710 PM CST. MOTORIST TRAVELING THROUGH THE METRO EAST AREA SHOULD BE ALERT FOR STRONG AND GUSTY WINDS AND BRIEF HEAVY RAINFALL REDUCING VISIBILITIES BELOW 500 FEET. THESE STORMS WILL CONTINUE TO PRODUCE GUSTY WINDS OF 45 TO 55 MPH... BRIEF HEAVY RAINFALL AND DANGEROUS LIGHTNING. THE SOLID LINE OF SHOWERS AND THUNDERSTORMS WAS MOVING TO THE NORTHEAST AT 40 MPH. RP
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 20, 6:51 PM CST | Severe Thunderstorm Warning | LSX | Macoupin | 54 min |
| Nov 20, 7:35 PM CST | Severe Thunderstorm Warning | LSX | Montgomery | 55 min |
| Nov 20, 7:45 PM CST | Severe Thunderstorm Warning | LSX | Bond | 45 min |
| Nov 20, 7:55 PM CST | Severe Thunderstorm Warning | LSX | Washington | 35 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1994Every severe thunderstorm warning in 1994
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.