Alert archive / Illinois / Severe Thunderstorm Warnings in 1988
Severe Thunderstorm Warning 18, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 22, 1988, 6:39 PM CDT for Fayette County, Illinois. It was in force for 36 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 22, 1988, 6:39 PM CDT (23:39 UTC)
- Expired
- Apr 22, 1988, 7:15 PM CDT
- In force
- 36 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Fayette County, IL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 22, 6:50 PM CDT | Thunderstorm Wind 0 | Fayette, IL |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Salem-Leckrone, IL (KSLO), launched 12:00Z, 11.7 hours before the alert went out and 40 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
- NaN m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 154 m²/s²
- 0-3 km storm-relative helicity
- 296 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Apr 22, 2:38 PM CDT, 4 hours 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 235 PM CDT FRI APR 22 1988 ...SEVERE WEATHER OUTLOOK FOR MISSOURI... THE POTENTIAL FOR SEVERE THUNDERSTORMS OVER PARTS OF MISSOURI HAS INCREASED FOR LATER THIS AFTERNOON AND EARLY TONIGHT. THUNDERSTORMS ARE EXPECTED TO DEVELOP DURING THE LATE AFTERNOON HOURS IN THE CENTRAL TO SOUTH CENTRAL PARTS OF MISSOURI AND MOVE NORTHEAST DURING THE EVENING. CONDITIONS ARE SUCH THAT SOME OF THESE STORMS COULD BECOME VERY STRONG OR EVEN SEVERE BY THIS EVENING. THE SYSTEM BRINGING THIS THUNDERSTORM THREAT TO MISSOURI WAS CENTERED AROUND A LOW PRESSURE SYSTEM NEAR KANSAS CITY AT 2 PM THIS AFTERNOON. A COOL FRONT EXTENDED SOUTH FROM THE LOW THROUGH EXTREME EASTERN KANSAS...WHILE A WARM FRONT STRETCHED FROM THE LOW ACROSS NORTHERN MISSOURI. THERE WERE NO THUNDERSTORMS IN THE STATE AS OF 230 PM...BUT STAY INFORMED AND LISTEN FOR LATER INFORMATION THIS AFTERNOON AND EVENING ~AS THUNDERSTORMS DEVELOP. MCCARTHY
Special weather statement, Apr 22, 4:02 PM CDT, 2 hours 37 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 400 PM CDT FRI APR 22 1988 ...THUNDERSTORMS DEVELOPING IN EAST CENTRAL MISSOURI... JUST BEFORE 4 PM A STRONG THUNDERSTORM DEVELOPED IN EAST CENTRAL MISSOURI ABOUT 40 MILES NORTHWEST OF ST. LOUIS IN EXTREME WESTERN LINCOLN COUNTY. SATELLITE PHOTOS SHOWED ADDITIONAL DEVELOPING STORMS THROUGH PARTS OF THE ST. LOUIS AREA. THESE STORMS ARE EXPECTED TO MOVE TO THE NORTHEAST...AND COULD BECOME QUITE STRONG LATER THIS AFTERNOON...SOME OF THEM POSSIBLY SEVERE. MCCARTHY
Special weather statement, Apr 22, 6:14 PM CDT, 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 613 PM CDT FRI APR 22 1988 ...TORNADO WATCH FOR NORTHEAST MISSOURI AND PARTS OF CENTRAL AND SOUTHERN ILLINOIS UNTIL 10 PM... AT 610 PM A SEVERE THUNDERSTORM WAS JUST NORTH OF LITCHFIELD ILLINOIS...ABOUT 50 TO 60 MILES NORTHEAST OF ST LOUIS. IT WAS MOVING EAST AT 45 MPH AND WAS PRODUCING EXTREMELY HEAVY RAIN... LARGE HAIL...HIGH WINDS AND DANGEROUS LIGHTNING. THE STORM PRODUCED INCH AND A HALF DIAMETER HAIL AT GREENFIELD ILLINOIS IN GREENE COUNTY AT 530 PM. OTHER STORMS...SOME VERY STRONG...STRETCHED FROM JUST NORTH AND NORTHWEST OF QUINCY ILLINOIS TO AROUND SPRINGFIELD ILLINOIS. THE STORMS WERE MOVING EAST AT 40 MPH.! MOST OF THE THUNDERSTORMS AROUND THE IMMEDIATE ST LOUIS AREA HAVE DIMINISHED. MCCARTHY
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 5:00 PM CDT | Severe Thunderstorm Warning | LSX | Greene | 45 min |
| Apr 22, 6:51 PM CDT | Tornado Warning | LSX | Effingham, Fayette | 54 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1988Every severe thunderstorm warning in 1988
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.