Alert archive / Illinois / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 71, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Jul 20, 1994, 5:29 PM CDT for Menard County, Sangamon County, Illinois. It was in force for 46 min.
The area
The counties it named.
The facts
- Issued
- Jul 20, 1994, 5:29 PM CDT (22:29 UTC)
- Expired
- Jul 20, 1994, 6:15 PM CDT
- In force
- 46 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
Counties Menard County, IL, Sangamon County, IL
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 12:00Z, 10.5 hours before the alert went out and 326 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
- 2213 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 918 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -19 m²/s²
- 0-3 km storm-relative helicity
- -21 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 KSPI 202231 RRA SVRSPI ILC129-167-202315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SPRINGFIELD IL 529 PM CDT WED JUL 20 1994 THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 615 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL ILLINOIS ...EASTERN MENARD COUNTY...NORTHWEST SANGAMON COUNTY AT 530 PM CDT...RADAR SHOWED A SEVERE THUNDERSTORM ABOUT 20 MILES WEST OF DOWNTOWN SPRINGFIELD...NEAR ALEXANDER. THIS THUNDERSTORM IS MOVING TO THE NORTHEAST AT 25 MPH. THIS STORM IS CAPABLE OF PRODUCING HIGH WINDS AND LARGE HAIL. IT WILL MOVE THROUGH OR NEAR THE TOWNS OF NEW BERLIN... SPRINGFIELD... PLEASANT PLAINS... SALISBURY... AND ATHENS. TAKE SHELTER IN A SUBSTANTIAL BUILDING. STAY AWAY FROM WINDOWS. LIGHTNING KILLS...SO STAY OFF OF TELEPHONES. REMEMBER...A SEVERE THUNDERSTORM MAY PRODUCE A TORNADO AT ANY TIME. $$ CWG
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, 2:34 PM CDT, 2 hours 55 minutes before
ILZ017-018-025>031-034>038-040-041-202035- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE PEORIA IL 234 PM CDT WED JUL 20 1994 ...STRONG STORMS DEVELOPING ACROSS WESTERN ILLINOIS... AT 225 PM...RADAR INDICATED STRONG STORMS DEVELOPING ALONG THE MISSISSIPPI RIVER BETWEEN BURLINGTON AND QUINCY. THE STRONGEST STORM WAS MOVING NORTHEAST TOWARDS LA HARPE IN NORTHEASTERN HANCOCK COUNTY. THESE STORMS WERE MOVING AT 30 TO 35 MPH. ANOTHER STORM WAS NEAR QUINCY. EXPECT THE LA HARPE STORM TO MOVE INTO SOUTHERN HENDERSON AND WARREN COUNTIES IN THE NEXT HALF HOUR. THE STORM NEAR QUINCY WILL MOVE INTO THE WESTERN PORTIONS OF SCHUYLER AND MCDONOUGH COUNTIES THROUGH 330 PM. CONDITIONS ACROSS THE AREA ARE FAVORABLE FOR THUNDERSTORM DEVELOPMENT. IF YOU PLAN TO BE OUTDOORS...CHECK THE LATEST WEATHER INFORMATION. MOGGED
Special weather statement, Jul 20, 2:36 PM CDT, 2 hours 53 minutes before
ILZ017-018-025>031-034>038-040-041-202035- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE PEORIA IL 234 PM CDT WED JUL 20 1994 ...STRONG STORMS DEVELOPING ACROSS WESTERN ILLINOIS... AT 225 PM...RADAR INDICATED STRONG STORMS DEVELOPING ALONG THE MISSISSIPPI RIVER BETWEEN BURLINGTON AND QUINCY. THE STRONGEST STORM WAS MOVING NORTHEAST TOWARDS LA HARPE IN NORTHEASTERN HANCOCK COUNTY. THESE STORMS WERE MOVING AT 30 TO 35 MPH. ANOTHER STORM WAS NEAR QUINCY. EXPECT THE LA HARPE STORM TO MOVE INTO SOUTHERN HENDERSON AND WARREN COUNTIES IN THE NEXT HALF HOUR. THE STORM NEAR QUINCY WILL MOVE INTO THE WESTERN PORTIONS OF SCHUYLER AND MCDONOUGH COUNTIES THROUGH 330 PM. CON.DITIONS ACROSS THE AREA ARE FAVORABLE FOR THUNDERSTORM DEVELOPMENT. IF YOU PLAN TO BE OUTDOORS...CHECK THE LATEST WEATHER INFORMATION. MOGGED
Special weather statement, Jul 20, 4:01 PM CDT, 1 hour 28 minutes before
ILZ017-018-025>031-034>038-040-041-202200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 401 PM CDT WED JUL 20 1994 ...SEVERE THUNDERSTORM WATCH UNTIL 9 PM FOR WEST CENTRAL ILLINOIS AND CENTRAL ILLINOIS... AT 355 PM...STRONG THUNDERSTORMS WERE ACROSS WEST CENTRAL ILLINOIS. THESE THUNDERSTORMS WERE ACROSS HENDERSON.... HANCOCK... WARREN... MCDONOUGH AND SCHUYLER COUNTIES. THE STRONGEST STORMS WERE IN CENTRAL MCDONOUGH COUNTY NEAR MACOMB. THESE STORMS WERE MOVING NORTHEAST AT 30 MPH. THROUGH 5 PM... THE STRONGEST STORMS WILL MOVE ACROSS NORTHWESTERN FULTON INTO KNOX COUNTIES. HIGH WINDS...FREQUENT LIGHTNING AND HAIL MAY ACCOMPANY THESE STORMS. MOGGED
Special weather statement, Jul 20, 4:03 PM CDT, 1 hour 26 minutes before
ILZ017-018-025>031-034>038-040-041-202200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 401 PM CDT WED JUL 20 1994 ...SEVERE THUNDERSTORM WATCH UNTIL 9 PM FOR WEST CENTRAL ILLINOIS AND CENTRAL ILLINOIS... AT 355 PM...STRONG THUNDERSTORMS WERE ACROSS WEST CENTRAL ILLINOIS. THESE THUNDERSTORMS WERE ACROSS HENDERSON.... HANCOCK... WARREN... MCDONOUGH AND SCHUYLER COUNTIES. THE STRONGEST STORMS WERE IN CENTRAL MCDONOUGH COUNTY NEAR MACOMB. THESE STORMS WERE MOVING NORTHEAST AT 30 MPH. THROUGH 5 PM... THE STRONGEST STORMS WILL MOVE ACROSS NORTHWESTERN FULTON INTO KNOX COUNTIES. HIGH WINDS...FREQUENT LIGHTNING AND HAIL MAY ACCOMPANY THESE STORMS. MOGGED
Special weather statement, Jul 20, 4:48 PM CDT, 41 minutes before
ILZ047-050-202250- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 448 PM CDT WED JUL 20 1994 ...STRONG THUNDERSTORMS CROSSING THE ILLINOIS RIVER... AT 445 PM CDT...SPRINGFIELD RADAR SHOWED A LINE OF STRONG THUNDERSTORMS CROSSING THE ILLINOIS RIVER...FROM MEREDOSIA NORTH TO CUBA. THESE STORMS ARE MOVING TO THE NORTHEAST AT 30 MPH...AND WILL AFFECT WESTERN CASS AND NORTHWEST MORGAN COUNTIES THROUGH 530 PM. HAIL AND HIGH WINDS ARE POSSIBLE WITH THESE STORMS. IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A STORM APPROACHES. MOTORISTS SHOULD REMAIN ALERT FOR REDUCED VISIBILITIES DURING DOWNPOURS OF RAIN. STREETS MAY FLOOD QUICKLY. REMEMBER THAT A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM CDT. GEELHART
Special weather statement, Jul 20, 4:49 PM CDT, 40 minutes before
ILZ047-050-202250- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 448 PM CDT WED JUL 20 1994 ...STRONG THUNDERSTORMS CROSSING THE ILLINOIS RIVER... AT 445 PM CDT...SPRINGFIELD RADAR SHOWED A LINE OF STRONG THUNDERSTORMS CROSSING THE ILLINOIS RIVER...FROM MEREDOSIA NORTH TO CUBA. THESE STORMS ARE MOVING TO THE NORTHEAST AT 30 MPH...AND WILL AFFECT WESTERN CASS AND NORTHWEST MORGAN COUNTIES THROUGH 530 PM. HAIL AND HIGH WINDS ARE POSSIBLE WITH THESE STORMS. IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A STORM APPROACHES. MOTORISTS SHOULD REMAIN ALERT FOR REDUCED VISIBILITIES DURING DOWNPOURS OF RAIN. STREETS MAY FLOOD QUICKLY. REMEMBER THAT A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM CDT. GEELHART
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 2:48 PM CDT | Severe Thunderstorm Warning | ILX | McDonough, Warren | 42 min |
| Jul 20, 4:38 PM CDT | Severe Thunderstorm Warning | ILX | Fulton | 67 min |
| Jul 20, 4:57 PM CDT | Severe Thunderstorm Warning | ILX | Mason | 48 min |
| Jul 20, 5:15 PM CDT | Tornado Warning | ILX | Peoria, Tazewell | 45 min |
| Jul 20, 5:17 PM CDT | Severe Thunderstorm Warning | ILX | Cass | 29 min |
| Jul 20, 5:17 PM CDT | Severe Thunderstorm Warning | ILX | Menard | 43 min |
| Jul 20, 5:17 PM CDT | Severe Thunderstorm Warning | ILX | Morgan | 43 min |
| Jul 20, 5:47 PM CDT | Tornado Warning | ILX | Woodford | 58 min |
| Jul 20, 6:13 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Sangamon | 32 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.