Alert archive / Missouri / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 29, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 10, 1986, 7:15 PM CDT for Shelby County, Missouri. 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
- Jul 10, 1986, 7:15 PM CDT (00:15 UTC)
- Expired
- Jul 10, 1986, 8:00 PM CDT
- In force
- 45 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Shelby County, MO
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 |
|---|---|---|---|
| Jul 10, 7:15 PM CDT | Thunderstorm Wind 0 | Shelby, MO |
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, 0.3 hours before the alert went out and 302 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
- 933 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 1223 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 110015 SVRSTL MOC127-205-ILC001-110100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 715 PM CDT THU JUL 10 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 800 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF MISSOURI AND ILLINOIS... IN MISSOURI...MARION AND SHELBY COUNTIES. IN ILLINOIS...ADAMS AND NORTHERN PIKE COUNTIES. AT 715 PM CDT A LINE OF SEVERE THUNDERSTORMS WAS INDICATED BY RADAR FROM QUINCY ILLINOIS TO MACON MISSOURI. SCATTERED DAMAGING WINDS WERE REPORTED BETWEEN 645 PM AND 700 PM AT MACON...CLARENCE..AND AT THE QUINCY AIRPORT. < THESE STORMS ARE MOVING TO THE EAST NORTHEAST WHILE THE LINE IS MOVING SLOWLY SOUTHEAST. REMEMBER A SEVERE THUNDERSTORM CAN PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH..LARGE HAIL..DEADLY LIGHTNING..AND HEAVY RAIN THAT CAN QUICKLY FLOOD LOW LYING AREAS. PLEASE REPORT ANY SEVERE WEATHER TO YOURG NEAREST LAW ENFORCEMENT AGENCY OR THE NATIONAL WEATHER SERVICE. PEDIGO
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 10, 4:23 PM CDT, 2 hours 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 415 PM CDT THU JUL 10 1986 ...STRONG THUNDERSTORMS IN WEST CENTRAL ILLINOIS... AT 413 PM CDT A HEAVY THUNDERSTORM WAS IN EASTERN MADISON COUNTY OF WEST CENTRAL ILLINOIS. THE STORM DROPPED HEAVY RAIN AND HAIL TO 1/2 INCH DIAMETER EAST OF EDWARDSVILLE OR ABOUT 30 MILES NORTHEAST OF ST LOUIS. THE STORM WILL CONTINUE TO PRODUCE SMALL HAIL AND VERY HEAVY RAIN AS WELL AS STRONG GUSTY WIND UNTIL 530 PM AS IT PASSES THROUGH EXTREME EASTERN MADISON AND WESTERN BOND COUNTY OF ILLINOIS. A SECOND HEAVY THUNDERSTORM WAS JUST SOUTH OF ALTON AND IT WILL PASS THROUGH MADISON COUNTY BETWEEN 415 AND 5 PM. TUCKER
Special weather statement, Jul 10, 6:15 PM CDT, 1 hour before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 615 PM CDT THU JUL 10 1986 ...THUNDERSTORMS WITH VERY HEAVY RAIN MOVING INTO CENTRAL MISSOURI... AT 610 PM CDT COLUMBIAS RADAR SHOWED STRONG THUNDERSTORMS IN AN AREA 20 TO 30 MILES WIDE NORTH OF A LINE FROM WARRENSBURG TO MADISON TO
Special weather statement, Jul 10, 6:23 PM CDT, 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 620 PM CDT THU JUL 10 1986 ...THUNDERSTORMS WITH VERY HEAVY RAIN MOVING INTO CENTRAL MISSOURI... AT 610 PM CDT COLUMBIAS RADAR SHOWED STRONG THUNDERSTORMS WITH VERY HEAVY RAIN IN AN AREA 20 TO 30 MILES WIDE NORTH OF A LINE FROM WARRENSBURG TO MADISON TO HANNIBAL. THESE STORM WERE MOVING TO THE SOUTHEAST AT 35 MILES AN HOUR AND AT 715 PM THE LEADING EDGE OF THE AREA WILL BE LOCATE D FROM IONIA TO JUST NORTH OF COLUMBIA TO BOWLING GREEN. THESE STORMS WILL PRODUCE HEAVY RAIN AND WINDS GUSTING TO 40 TO 45 MILES AN HOUR AS THEY MOVE THROUGH CENTRAL MISSOURI. LB
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 7:15 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 45 min |
| Jul 11, 5:12 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 48 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1986Every severe thunderstorm warning in 1986
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.