Alert archive / Illinois / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 32, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 5, 1987, 1:15 PM CDT for Monroe County, Illinois. It was in force for 45 min.
The area
The counties it named.
The facts
- Issued
- Jul 5, 1987, 1:15 PM CDT (18:15 UTC)
- Expired
- Jul 5, 1987, 2:00 PM CDT
- In force
- 45 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Monroe County, IL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Salem-Leckrone, IL (KSLO), launched 12:00Z, 6.3 hours before the alert went out and 119 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
- 151 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 575 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 051822 COR SVRSTL ILC119-163-133-051900- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING...CORRECTION NATIONAL WEATHER SERVICE ST LOUIS MO 115 PM CDT SUN JUL 5 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 200 PM CDT FOR THE FOLLOWING COUNTIES OF SOUTHWEST ILLINOIS... MADISON... ST. CLAIR... MONROE A LINE OF SEVERE THUNDERSTORMS ACROSS THE ST LOUIS METROPOLITAN AREA WILL MOVE ACROSS THE WARNzED COUNTIES. WINDS GUSTS TO 52 MPH WERE REPORTED AT BOTH ST LOUIS LAMBERT FIELD AND THE SPIRIT OF ST LOUIS AIRPORT WITH THIS LINE OF STORMS. THE STORMS ARE MOVING TO THE EAST AT 35 TO 40 MPH. REH
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 5, 7:58 AM CDT, 5 hours 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 0745 AM CDT SUN JUL 5 1987 ...SEVERE THUNDERSTORM WATCH FOR SOUTHWEST MISSOURI... ...MORE THUNDERSTORMS EXPECTED OVER MUCH OF THE STATE... THE NATIONAL SEVERE STORMS FORECAST CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR THE SOUTHWEST CORNER OF MISSOURI. A THUNDERSTORM COMPLEX IS EXPECTED TO SLIDE OUT OF KANSAS AND PRODUCE HEAVY RAINS...POSSIBLY LARGE HAIL AND DAMAGING WIND TO THAT AREA OF THE STATE. ALSO...PART OF THE THUNDERSTORM COMPLEX IS DEVELOPING TOWARD EAST CENTRAL KANSAS AND WEST CENTRAL MISSSOURI. THE AIR IS VERY MOIST AND UNSTABLE OVER THE AREA AND THERE IS ALSO A LEFTOVER THUNDERSTORM BOUNDARY THAT STRETCHES ACROSS MISSOURI TO JUST SOUTH OF ST LOUIS. THIS COMBINATION SHOULD BE ENOUGH TO IGNITE A NUMBER OF THUNDERSTORMS OVER MUCH OF WEST...CENTRAL AND EVENTUALLY EAST CENTRAL MISSOURI. THIS MAY PUT A DAMPER ON SOME OF THE SCHEDULED HOLIDAY ACTIVITIES TODAY SUCH AS THE V.P. FAIR ACTIVITIES IN ST LOUIS. INTERESTED PERSONS SHOULD MONITOR COMMERCIAL TELEVISION AND RADIO STATIONS OR LISTEN TO NOAA WEATHER RADIO FOR UPDATED FORECASTS...RADAR SUMMARIES OR SPECIAL STATEMENTS. SOME OF THESE STORMS MAY PRODUCE STRONG WINDS...HEAVY RAIN...HAIL AND INTENSE LIGHTNING. TUCKER
Special weather statement, Jul 5, 10:23 AM CDT, 2 hours 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1020 AM CDT SUN JUL 5 1987 THE PORTION OF SEVERE THUNDERSTORM NUMBER 319 WHICH INCLUDED THE KANSAS CITY METROPOLITAN AREA HAS BEEN CANCELLED. REH
Special weather statement, Jul 5, 12:40 PM CDT, 35 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ST LOUIS MO 1235 PM CDT SUN JUL 5 1987 ..A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 5PM FOR MOST OF EASTERN MISSOURI...AND PARTS OF WESTERN ILLINOIS... ...INTENSE STORMS IN EASTERN MISSOURI... AT 1229 PM CDT...SCATTERED THUNDERSTORMS WITH VERY HEAVY RAIN...STRONG GUSTY WINDS AND HAIL...WERE OCCURRING IN A LARGE PART OF SOUTH CENTRAL TO EAST CENTRAL TO NORTHEAST MISSOURI. INTENSE STORMS WITH VERY HEAVY RAIN...STRONG GUSTY WINDS AND HAIL... WERE IN A 20 MILE WIDE LINE FROM NEAR KIRKSVILLE TO HERMANN TO WEST PLAINS MISSOURI. THE STORMS WERE MOVING TO THE EAST AT 45 MILES AN HOUR. THESE STORMS HAVE A PAST HISTORY OF DAMAGES FROM VERY STRONG WINDS. PERSONS IN THE AREAS THIS LINE OF STORMS WILL MOVE THROUGH...BE ALERT FOR ANY SUDDEN SEVERE WEATHER. STAY TUNED TO YOUR LOCAL RADIO OR WEATHER RADIO. REPORT ANY SEVERE WEATHER TO THE NEAREST POLICE IAGENCY OF THE NATIONAL WEATHER SERVICE...AFTER PROTECTING YOUR LIFE. BB
Special weather statement, Jul 5, 1:03 PM CDT, 12 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1250 PM CDT SUN JUL 5 1987 ... SPECIAL V.P. FAIR STATEMENT ... THE LEADING EDGE OF AN EXTENSIVE AREA OF SHOWERS AND THUNDERSTORMS HAD ENTERED WEST SECTIONS OF THE ST LOUIS METRO AREA AT 1230 THIS AFTERNOON. ALONG THE LEADING EDGE OF THIS AREA...WINDS WERE GUSTING TO AROUND 50 MILES AN HOUR. TORRENTIAL RAIN CAN ALSO BE EXPECTED AS WELL AS SOME LIGHTNING. IT WILL REACH THE FAIR GROUNDS AROUND 130PM. BEHIND THIS LEADING LINE....MODERATE RAIN EXTENDED ALL THE WAY WEST TO NEAR COLUMBIA THUS IT LOOKS LIKE A VERY WET AND WINDY AFTERNOON FOR THE V.P. FAIR. PERSONS ATTENDING THE FAIR SHOULD TAKE APPROPRIATE ACTION AND PREPA`RE FOR THIS POTENTIALLY SEVERE WEATHER. FELDT
Local storm report, Jul 5, 1:12 PM CDT, 3 minutes before
ATTN SELS
STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA MO
115 PM CDT SUN JUL 5 1987
TIME REPORT
1015 AM CDT 16 BOATS STRANDED IN LAKE. 2 PUSHED UP ON ROCKS
LIGHTHOUSE AT MARINA TORN LOOSE. 2 CAMPERS OVER-
TURNED. LARGE TREES UPROOTED. HERMITAGE IN
HICKORY COUNTY.
1015 AM CDT LARGE TREE LIMBS DOWN AT BARNETT IN MORGAN COUNTY.
1015 AM CDT UTILITY POLE DOWN AT SEDALIA IN PETTIS COUNTY.
1120 AM CDT JUST WEST OF BOONVILLE IN COOPER COUNTY WIND
DAMAGE TO HOME. TREES AND LIMBS DOWN.
1120 AM CDT TRAILER BLOWN OVER IN SOUTHEASTERN JEFFERSON
CITY IN COLE COUNTY.
1110 AM CDT LARGE TREES DOWN NEAR ELDON IN MILLER COUNTY.
1120 AM CDT NUMEROUS LARGE TREES DOWN. POWER OUT NEAR
WAYNESVILLE IN PULASKI COUNTY.
1145i AM CDT TREES DOWN NORTH SIDE OF CITY OF COLUMBIA
IN BOONER COUNTY.
1151 AM CDT LARGE TREES DOWN..POWER LINES DOWN AT STURGEON
IN BOONE COUNTY.
LA GREEThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 1:15 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 45 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 1987Every severe thunderstorm warning in 1987
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.