Alert archive / Missouri / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 47, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 6, 1987, 7:50 PM CDT for Saint Charles County, Saint Louis County, City of Saint Louis, Missouri. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Jul 6, 1987, 7:50 PM CDT (00:50 UTC)
- Expired
- Jul 6, 1987, 8:45 PM CDT
- In force
- 55 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties City of Saint Louis, MO, Saint Charles County, MO, Saint Louis County, MO
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 00:00Z, 0.8 hours before the alert went out and 134 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
- 1512 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 070051 SVRSTL MOC183-189-510-070145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 750 PM CDT MON JUL 6 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 845 PM CDT FOR THE FOLLOWING COUNTIES OF EAST CENTRAL MISSOURI... WESTERN AND SOUTHERN ST. CHARLES... WESTERN AND SOUTHERN ST. LOUIS... ST. LOUIS CITY AT 740PM THIS EVENING A SEVERE THUNDERSTORM WAS INDICATED NEAR COTTLEVILLE IN ST CHARLES COUNTY. GOLF BALL SIZE HAIL WAS REPORTED. THIS STORM WAS MOVING TO THE EAST AT 20 MILES AN HOUR. IT WILL MOVE ACROSS SOUTH AND EAST SECTIONS OF ST CHARLES COUNTY.. AND INTO WEST AND SOUTH ST LOUIS COUNTY AND THEN ST LOUIS CITY BEFORE 845 THIS EVENING. TORRENTIAL RAIN WILL ALSO RESULT IN FLOODING OF STREETS .. STREAMS AND LOW SPOTS. HEAVY RAINS REDUCE VISIBILITY AND QUICKLY FLOOD ROADS AND LOW LYING AREAS. MOTORISTS SHOULD BE ALERT. DO NOT WALK OR DRIVE THROUGH FLOODED AREAS. STAY AWAY FROM STORM DRAINS. FELDT
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 6, 2:05 PM CDT, 5 hours 45 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 200 PM CDT MON JUL 6 1987 ...STRONG THUNDERSTORMS OVER AUDRAIN AND CALLAWAY COUNTIES... AT 155 PM CDT STRONG THUNDERSTORMS WERE IN AN AREA 15 MILES WIDE FROM MEXICO IN AUDRAIN COUNTY OR 25 MILES NORTHEAST OF COLUMBIA TO EAST OF KINGDOM CITY OR 25 MILES EAST OF COLUMBIA. THESE STORMS COULD PRODUCE VERY HEAVY RAIN AND POSSIBLE HAIL AND DANGEROUS LIGHTNING. THE STORMS WERE MOV.ING EAST AT 25 MILES AN HOUR. WATCH FOR THREATENING WEATHER AND BE PREPARED TO MOVE TO SAFETY IF YOU ARE IN THE AREA THREATENED BY THESE STORMS. MET
Special weather statement, Jul 6, 2:54 PM CDT, 4 hours 56 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 250 PM CDT MON JUL 6 1987 ...STORMS MOVING THROUGH PIKE COUNTY MISSOURI INTO PIKE COUNTY ILLINOIS. AT 245 PM THUNDERSTORMS PELLTED BOYWLING GREEN MISSOURI WITH SMALL HAIL. BOWLING GREEN IS ABOUT 60 MILES NORTHWEST OF ST LOUIS. THESE STORMS WERE MOVING EAST AT 25 MPH AND WILL PASS THROUGH LOUISIANA MISSOURI AND PITTSFIELD ILLINOIS BETWEEN 250 PM AND 4 PM. HAMILTON
Special weather statement, Jul 6, 5:40 PM CDT, 2 hours 10 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 535 PM CDT MON JUL 6 1987 ...THUNDERSTORM NEAR COLUMBIA... AT 530 PM CDT RADAR SHOWED THAT A THUNDERSTORM HAD DEVELOPED IN THE SOUTHERN PORTION OF COLUMBIA. PEA TO MARBLE SIZED HAIL WAS REPORTED WITH THIS THUNDERSTORM AND IT WAS MOVING NORTHEAST AT ABOUT 20 MILES AN HOUR. THIS WAS THE ONLY THUNDERSTORM IN CENTRAL MISSOURI AT 530 PM CDT... BUT OTHER STRONG THUNDERSTORMS CONTINUED IN EASTERN AND NORTHERN MISSOURI. SCATTERED STRONG THUNDERSTORMS ARE STILL EXPECTED OVER EASTERN PORTIONS OF CENTRAL MISSOURI EARLY THIS EVENING. STAY TUNED TO YOUR RADIO OR TELEVISION FOR FURTHER UPDATES. VOTAW
Special weather statement, Jul 6, 5:41 PM CDT, 2 hours 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 535 PM CDT MON JUL 6 1987 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR EASTCENTRAL MISSOURI UNTIL 900 PM CDT... ...THUNDERSTORM NEAR COLUMBIA... AT 530 PM CDT RADAR SHOWED THAT A THUNDERSTORM HAD DEVELOPED IN THE SOUTHERN PORTION OF COLUMBIA. PEA TO MARBLE SIZED HAIL WAS REPORTED WITH THIS THUNDERSTORM AND IT WAS MOVING NORTHEAST AT ABOUT 20 MILES AN HOUR. THIS WAS THE ONLY THUNDERSTORM IN CENTRAL MISSOURI AT 530 PM CDT... BUT OTHER STRONG THUNDERSTORMS CONTINUED IN EASTERN AND NORTHERN MISSOURI. SCATTERED STRONG THUNDERSTORMS ARE STILL EXPECTED OVER EASTERN PORTIONS OF CENTRAL MISSOURI EARLY THIS EVENING. STAY TUNED TO YOUR RADIO AND TELEVISION FOR UPDATES. VOTAW
Special weather statement, Jul 6, 7:19 PM CDT, 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 715 PM CDT MON 6 JUL 1987 AT 705 PM CDT RADAR INDICATED THUNDERSTORMS ACROSS CENTRAL MISSOURI NORTH OF A LINE EXTENDING FROM 20 MILES EAST OF JEFFERSON CITY NEAR CHAMOIS TO LADDONIA TO NEAR MOBERLY TO BROOKFIELD AND INTO NORTHWEST MISSOURI. THE STRONGEST STORMS WERE NEAR MACON AND THESE WERE PRODUCING VERY HEAVY RAIN..STRONG GUSTY WINDS AND SOME HAIL AS REPORTED BY THE HIGHWAY PATROL wAT MACON. THE STORMS WERE MOVING EAST AT 20 MPH.
Special weather statement, Jul 6, 7:38 PM CDT, 12 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 730 PM CDT MON JUL 6 1987 AT 730PM... STRONG THUNDERSTORMS CONTINUED ACROSS PARTS OF NORTHEAST MSSOURI AND WESTERN ILLINOIS. ONE CLUSTER OF STRONG STORMS WAS LOCATED IN GREENE COUNTY ILLINOIS.. ABOUT 30 MILES NORTH OF ST LOUIS. OTHER STORMS WERE LOCATE IN SHELBY AND MACON COUNTIES...JUST SOUTH AND SOUTHEAST OF KIRKSVILLE. IN THE ST LOUIS AREA... A STRONG THUNDERSTORM WAS PRODUCING MARBLE SIZE HAIL AND HEAVY RAIN IN THE CITY OF ST LOUIS. ANOTHER STORM WAS LOCATED IN ST. CHARLES COUNTY. SMALL HAIL HAS BEEN REPORTED WITH THIS STORM. ROADS ARE REPORTED FLOODED IN SEVERAL SPOTS OF ST CHARLES AND ST LOUIS COUNTIES ..ESPECIALLY IN THE TYPICALLY FLOOD PRONE AREAS. MOTORISTS SHOULD KEEP ALERT FOR FLOODED ROADS AND STREAMS IN THE ST LOUIS AREA THIS EVENING. ALL OF THE STORMS WERE MOVING EAST SOUTHEAST AT 25 MILES AN HOUR. FELDT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 10:26 PM CDT | Flash Flood Warning | LSX | Saint Charles, Warren | 5 hr |
Nearby
Severe Thunderstorm Warnings in Missouri, 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.