Alert archive / Missouri / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 9, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at May 6, 1986, 10:53 AM CDT for Linn County, Missouri. It was in force for 37 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
- May 6, 1986, 10:53 AM CDT (15:53 UTC)
- Expired
- May 6, 1986, 11:30 AM CDT
- In force
- 37 min
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties
County Linn 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 |
|---|---|---|---|
| May 6, 11:00 AM CDT | Hail 0.75 | Linn, 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
Topeka, KS (KTOP), launched 12:00Z, 3.9 hours before the alert went out and 238 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
- 1482 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 775 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 217 m²/s²
- 0-3 km storm-relative helicity
- 215 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 10.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCOU 061553 SVRCOU MOC115-061630- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE COLUMBIA MO 1053 AM CDT TUE MAY 6 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1130 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF NORTH CENTRAL MISSOURI...LINN AT 1040 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM 15 MILES WEST OF BROOKFIELD MOVING EAST NORTHEAST AT 40 MILES AN HOUR. LARGE HAIL AND DAMAGING WINDS ARE LIKELY WITH THIS STORM. REMEMBER A SEVERE THUNDERSTORM PRODUCES DAMAGING WINDS IN EXCESS OF 60 MPH..LARGE HAIL..DEADLY LIGHTNING AND HEAVY RAIN THAT CAN QUICKLY FLOOD A LOW LYING AREA. REPORT SEVERE !WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.
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, May 6, 6:53 AM CDT, 4 hours before
SPECIAL WEATHER STATEMENT NATIONAL WEATER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO 650AM CDT TUE MAY 6 1986 THUNDERSTORMS WITH VERY HEAVY RAIN...GUSTY WINDS AND POSSIBLY SMALL HAIL ..HAVE DEVELOPED OXVER NORTHEAST KANSAS AND WERE MOVING EASTWARD INTO NORTHWEST MISSOURI. IN MISSOURI...THESE THUNDERSTORMS WILL MOVE INTO HOLT AND DONIPHAN COUNTIES AND MAY SKIRT THE NORTHERN PORTION OF BUCHANAN COUNTY.
Special weather statement, May 6, 8:36 AM CDT, 2 hours 17 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO 830AM CDT TUE MAY 6 1986 AT 830 AM...AN AREA OF NUMEROUS THUNDERSTORMS...A FEW VERY STRONG... EXTENDED FROM EXTREME SOUTHEAST NEBRASKA ACROSS NORTHWEST MISSOURI INTO SOUTHWEST IOWA. IN MISSOURI THE STRONGEST THUNDERSTORMS WERE 25 MILES NORTHWEST OF ST JOSEPH...JUST SOUTH OF MOUNT CITY...IN HOLT COUNTY...AND 35 MILES NORTHEAST OF ST JOSEPH...WEST OF BETHANY...IN HARRISON COUNTY. A PERIOD OF VERY HEAVY RAIN...AND POSSIBLY SOME GUSTY WINDS AND SMALL HAIL WILL OCCUR WITH THE VERY STRONG STORMS. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 35 TO 40 MILES AN HOUR.
Special weather statement, May 6, 9:37 AM CDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO 930AM CDT TUE MAY 6 1986 AT 930 AM...AN AREA OF NUMEROUS THUNDERSTORMS...A FEW VERY STRONG... WAS IN NORTHWEST AND NORTHCENTRAL MISSOURI. THE STRONGEST THUNDERSTORMS WERE 55 MILES NORTHEAST OF KANSAS CITY... JUST SOUTHWEST OF CHILLICOTHE...IN LIVINGSTON COUNTY...AND 60 MILES NORTHEAST OF ST JOSEPH...WEST OF PRINCETON...IN MERCER COUNTY. A PERIOD OF VERY HEAVY RAIN...AND POSSIBLY SOME GUSTY WINDS AND SMALL HAIL WILL OCCUR WITH THE VERY STRONG STORMS. THE THUNDERSTORMS WERE MOVING EAST AT 40 TO 45 MILES AN HOUR.
Special weather statement, May 6, 10:37 AM CDT, 16 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO 1030AM CDT TUE MAY 6 1986 AT 1030 AM...AN AREA OF THUNDERSTORMS...A FEW VERY STRONG...CONTINUED TO MOVE RAPIDLY EAST ACROSS NORTHERN MISSOURI. THE THUNDERSTORMS WERE IN A BAND...ABOUT 50 MILES WIDE...AND EXTENDED FROM 20 MILES EAST OF ST JOSEPH TO NORTH OF KIRKSVILLE. THE STRONGEST THUNDERSTORMS WERE EAST OF CHILLICOTHE...ABOUT 75 MILES NORTHEAST OF KANSAS CITY...AND JUST TO THE WEST AND NORTHWEST OF KIRKSVILLE. A PERIOD OF VERY HEAVY RAIN IS LIKELY WITH THE VERY STRONG STORMS... AND ALSO THE POSSIBLY OF SOME GUSTY WINDS AND SMALL HAIL. BETWEEN 7 AND 10 AM BETHANY MISSOURI...50 MILES NORTHEAST OF ST JOSEPH RECEIVED .69 OF AN INCH OF RAIN. THE THUNDERSTORMS WERE MOVING EAST AT 40 TO 45 MILES AN HOUR.
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 12:16 PM CDT | Severe Thunderstorm Warning | EAX | Macon | 24 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.