Alert archive / Missouri / Flash Flood Warnings in 1987
Flash Flood Warning 1, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 6, 1987, 10:26 PM CDT for Saint Charles County, Warren County, Missouri. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Jul 6, 1987, 10:26 PM CDT (03:26 UTC)
- Expired
- Jul 7, 1987, 3:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Saint Charles County, MO, Warren 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, 3.4 hours before the alert went out and 176 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 070326 FFWSTL MOC183-219-070800- BULLETIN - EBS ACTIVATION AND IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1026 PM CDT MON JUL 6 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 300 AM CDT FOR THE FOLLOWING COUNTIES OF EAST CENTRAL MISSOURI... ST. CHARLES... WARREN FLOODING OF ROADS AND STREETS HAVE BEEN REPORTED ACROSS ST CHARLES AND WARREN COUNTIES. AT 1020 PM CDT...ST PETERS POLICE REPORTED I-70 CLOSED NEAR OLD TOWN ST PETERS FROM THE FLOODING OF DARDENE CREEK. SHOWERS AND SCATTERED THUNDERSTORMS CONTINUED ACROSS ST CHARLES AND WARREN COUNTIES AT 1020 PM. MOST FLASH FLOOD DEATHS OCCUR IN VEHICLES. DO N1OT CROSS BRIDGES OR LOW WATER CROSSINGS THAT ARE COVERED BY FLOWING WATER. DO NOT DRIVE INTO FLOODED AREAS. IF FLOOD WATERS OVERTAKE YOUR VEHICLE...ABANDON IT IMMEDIATELY FOR HIGHER GROUND. SCHROEDER
What forecasters said that day
The local office's own words before this flash flood 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, 5:40 PM CDT, 4 hours 46 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, 4 hours 45 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, 3 hours 7 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, 2 hours 48 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
Special weather statement, Jul 6, 8:14 PM CDT, 2 hours 12 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 805 PM CDT MON 6 JUL 1987 SEVERE THUNDERSTORM WATCH 326 IN EFFECT UNTIL 9PM FOR EAST CENTRAL MISSOURI. A FLASH FLOOD WATCH FOR TONIGHT FOR NORTH CENTRAL AND NORTHEAST MISSOURI. AT 8 PM CDT RADAR SHOWED THUNDERSTORMS NORTH OF A LINE FROM NEAR HERMANN TO 10 MILES NORTH OF COLUMBIA TO 60 MILES NORTHWEST OF COLUMBIA NEAR SUMNER. THE STRONGEST STORMS WERE 35 MILES NORTHEAST OF COLUMBIA IN MONTGOMERY COUNTY AND NEAR MEXICO IN AUDRIAN COUNTY. STRONG THUNDERSTORMS WERE ALSO MOVING INTO NORTHERN CHARITON COUNTY NEAR SUMNER. VERY HEAVY RAIN..STRONG GUSTY WINDS AND HAIL ARE LIKELY WITH THESE STORMS. THE STORMS WERE MOVING EAST AT 20 MPH.
Special weather statement, Jul 6, 9:10 PM CDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 905 PM CDT MON 6 JUL 1987 FLASH FLOOD WATCH IN EFFECT TONIGHT FOR NORTH AND NORTHEAST MISSOURI. AT 855 PM CDT RADAR SHOWED THUNDERSTORMS NORTH OF A LINE FROM 10 MILES SOUTHEAST OF HERMANN TO 5 MILES EAST OF COLUMBIA TO CARROLTON. THE AREA WAS DEVELOPING TO THE WEST AND THE STRONGEST STORMS EXTENDED FROM NEAR BRUNSWICK TO MOBERLY..CENTRALIA..HALLSVILLE TO KINGDOM CITY TO NEAR HERMANN. VERY HEAVY RAIN..STRONG GUSTY WINDS AND HAIL ARE LIKELY AND SOME FLOODING IS POSSIBLE IN LOW LYING AREAS.
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 7:50 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis, City of Saint Louis | 55 min |
Nearby
Flash Flood Warnings in Missouri, 1987Every flash flood 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.