Alert archive / Illinois / Severe Thunderstorm Warnings in 1988
Severe Thunderstorm Warning 16, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Apr 5, 1988, 8:00 PM CDT for Monroe County, Saint Clair County, Illinois. It was in force for 45 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 5, 1988, 8:00 PM CDT (01:00 UTC)
- Expired
- Apr 5, 1988, 8:45 PM CDT
- In force
- 45 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Monroe County, IL, Saint Clair 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 5, 8:00 PM CDT | Hail 1.75 | St. Clair, 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 00:00Z, 1.0 hours before the alert went out and 105 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
- 1240 J/kg
- Mixed-layer CIN
- -178 J/kg
- Mixed-layer LCL
- 1551 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 129 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.1
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 5, 4:07 PM CDT, 3 hours 53 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 405 PM CDT TUE APR 5 1988 ...TORNADO WATCH FOR CENTRAL MISSOURI UNTIL 10PM... ...INTENSE THUNDERSTORMS MOVING RAPIDLY INTO CENTRAL MISSOURI... AT 403 PM CDT A LINE OF VERY INTENSE THUNDERSTORMS WAS LOCATED FROM JUST SOUTHWEST OF SEDALIA TO 10 MILES WEST OF WARSAW TO 50 MILES NORTHWEST OF SPRINGFIELD. THESE STORMS WILL BE MOVING THROUGH PETTIS ...BENTON AND HICKORY COUNTIES BETWEEN 410 AN 445PM AND WILL LIKELY CONTINUE TO INCREASE IN INTENSITY. SEVERE THUNDERSTORMS AND POSSIBLY TORNADOES ARE EXPECTED TO SWEEP THROUGH MUCH OF CENTRAL MISSOURI THIS AFTERNOON AND EVENING. RESIDENTS SHOULD LISTEN FOR LATER STATEMENTS AND WARbNINGS AND BE PREPARED TO TAKE COVER IF THREATENING WEATHER APPROACHES. HAGEMEYER
Special weather statement, Apr 5, 5:11 PM CDT, 2 hours 49 minutes before
SPECIAL WEATHER STATEMENT AND MISSOURI WEATHER SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 500 PM CDT TUE APR 5 1988 ...TORNADO WATCHES REMAIN IN EFFECT UNTIL 10 PM FOR SOUTHWEST...CENTRAL AND NORTHEAST MISSOURI... A LINE OF THUNDERSTORMS EXTENDED FROM NORTHEAST MISSOURI THROUGH THE COLUMBIA AREA INTO THE SPRINGFIELD AREA AT 5 PM. THIS LINE WAS IN ADVANCE OF A STRONG COLD FRONT. TEMPERATURES RANGED FROM THE LOW 60S TO THE LOW 90S. KANSAS CITY INTERNATIONAL WAS REPORTING 61 DEGREES WHILE THE SPIRIT OF ST LOUIS AIRPORT WAS REPORTING 91. THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AROUND 40 MPH. PERSONS IN THE WATCH AREA ARE ADVISED TO BE ALERT FOR THE POSSIBILITY OF SEVERE THUNDERSTORMS AND TORNADOES DURING THE LATE AFTERNOON AND EVENING HOURS. WS
Special weather statement, Apr 5, 7:26 PM CDT, 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 720 PM CDT TUE APR 5 1988 ...TORNADO WATCH FOR EASTERN CENTRAL MISSOURI UNTIL 10PM... AT 710 PM CDT NATIONAL WEATHER SERVICE RADAR AT COLUMBIA INDICATED SCATTERED THUNDERSTORMS OVER CENTRAL MISSOURI. THUNDERSTORMS WITH HEAVY RAIN WERE LOCATED 25 MILES WEST OF COLUMBIA OR WEST OF FRANKLIN IN HOWARD COUNTY AND JUST NORTHEAST OF HERMITAGE IN HICKORY COUNTY. THESE STORMS WERE MOVING TO THE NORTHEAST AT 40 MILES AN HOUR. AN AREA OF SHOWERS AND THUNDERSTORMS WERE OVER EAST CENTRAL MISSOURI EAST OF A LINE FROM NORTH OF MONTGOMERY CITY TO 10 MILES EAST OF JEFFERSON CITY TO WAYNESVILLE. THIS AREA OF STORMS WAS MOVING TO LTHE EAST AT 35 MILES AN HOUR. NO SEVERE WEATHER HAS BEEN REPORTED IN CENTRAL MISSOURI SINCE 610 PM. MET
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 5, 7:17 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 43 min |
| Apr 5, 7:17 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles | 43 min |
| Apr 5, 7:23 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 52 min |
| Apr 5, 7:48 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Washington | 42 min |
| Apr 5, 7:17 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 43 min |
| Apr 5, 7:31 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Madison | 44 min |
| Apr 5, 7:50 PM CDT | Severe Thunderstorm Warning | LSX | Pike, Scott | 25 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.