Alert archive / Illinois / Tornado Warnings in 1994
Tornado Warning 12, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 27, 1994, 3:20 AM CDT for Perry County, Illinois. It was in force for 27 min.
The area
The counties it named.
The facts
- Issued
- Apr 27, 1994, 3:20 AM CDT (08:20 UTC)
- Expired
- Apr 27, 1994, 3:47 AM CDT
- In force
- 27 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Perry County, IL
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 00:00Z, 8.3 hours before the alert went out and 127 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
- 2999 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 1036 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 1.8
- Supercell composite
- 10.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 270822 TORSTL ILC145-270900- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 320 AM CDT WED APR 27 1994 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 400 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL ILLINOIS ...PERRY COUNTY AT 320 AM...WEATHER SERVICE DOPPLER RADAR INDICATED A POSSIBLE TORNADO NEAR PINCKNEYVILLE...OR ABOUT 50 MILES SOUTHEAST OF ST LOUIS. THE STORM WAS MOVING EAST-NORTHEAST AT 35 MILES AN HOUR. THE TOWNS OF PINCKNEYVILLE AND TAMAROA ARE IN THE PATH OF THIS STORM. PERSONS IN AND NEAR THESE TOWNS SHOULD SEEK SHELTER IMMEDEATELY! THIS REPLACES THE SEVERE THUNDERSTORM WARNING FOR PERRY COUNTY. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS... OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS. SMALL/TRUETT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 8:07 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 68 min |
| Apr 26, 8:55 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 65 min |
| Apr 26, 9:12 PM CDT | Tornado Warning | LSX | Macoupin, Montgomery | 33 min |
| Apr 26, 9:27 PM CDT | Tornado Warning | LSX | Monroe | 48 min |
| Apr 26, 9:43 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 47 min |
| Apr 26, 9:54 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 66 min |
| Apr 26, 10:14 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Washington | 61 min |
| Apr 26, 10:30 PM CDT | Severe Thunderstorm Warning | LSX | Bond | 45 min |
| Apr 26, 10:39 PM CDT | Severe Thunderstorm Warning | LSX | Fayette | 51 min |
| Apr 26, 10:47 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Marion | 58 min |
| Apr 27, 12:33 AM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 42 min |
| Apr 27, 1:12 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair | 48 min |
| Apr 27, 2:40 AM CDT | Severe Thunderstorm Warning | LSX | Randolph | 50 min |
| Apr 27, 3:02 AM CDT | Severe Thunderstorm Warning | LSX | Perry | 43 min |
| Apr 27, 6:58 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 47 min |
Nearby
Tornado Warnings in Illinois, 1994Every tornado warning in 1994Tornadoes 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.