Alert archive / Missouri / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 39, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Jun 12, 1987, 7:10 PM CDT for Platte County, Missouri. It was in force for 65 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
- Jun 12, 1987, 7:10 PM CDT (00:10 UTC)
- Expired
- Jun 12, 1987, 8:15 PM CDT
- In force
- 65 min
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties
County Platte 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 |
|---|---|---|---|
| Jun 12, 7:22 PM CDT | Thunderstorm Wind 52 | Platte, 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 00:00Z, 0.2 hours before the alert went out and 86 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
- 2123 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 1855 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMCI 130010
SVRMCI
MOC165-130115-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY INTL AIRPORT
710 PM CDT FRI JUN 12 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 815 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
IN WEST CENTRAL MISSOURI
...PLATTE
AT 710 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES SOUTH OF
ST JOSEPH MOVING SOUTHEAST AT 25 MPH.
REMEBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT
BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. HEAVY RAINS
CAN COVER ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROADS.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR B USINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.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, Jun 12, 5:32 PM CDT, 1 hour 38 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO 533 PM CDT FRI JUN 12 1987 ...SEVERE THUNDERSTORM WATCH UNTIL 10PM CDT FOR NORTHEAST KANSAS AND NORTHWEST AND WEST CENTRAL MISSOURI...INCLUDING THE KANSAS CITY AND ST JOSEPH AREAS... AT 525 PM...AN AREA OF THUNDERSTORMS WAS OVER SOUTHEAST NEBRASKA... SOUTHWEST IOWA...AND EXTREME NORTHWEST MISSOURI...AND SCATTERED SHOWERS AND THUNDERSTORMS STRETCHED FROM WESTCENTRAL TO EASTCENTRAL MISSOURI. SEVERE THUNDERSTORMS...WITH VERY HEAVY RAIN...STRONG GUSTY WINDS AND POSSIBLE HAIL...WERE OVER NORTHERN ATCHISON COUNTY IN EXTREME NORTHWEST MISSOURI MOVING SOUTHEAST AT 25 MPH.
Special weather statement, Jun 12, 6:32 PM CDT, 38 minutes before
RADAR SUMMARY AND SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO 632 PM CDT FRI JUN 12 1987 ...SEVERE THUNDERSTORM WATCH UNTIL 10PM CDT FOR NORTHEAST KANSAS AND NORTHWEST AND WEST CENTRAL MISSOURI...INCLUDING THE KANSAS CITY AND ST JOSEPH AREAS... AT 625 PM...AN AREA OF THUNDERSTORMS WAS OVER SOUTHEAST NEBRASKA... SOUTHWEST IOWA...EXTREME NORTHEAST KANSAS AND NORTHWEST MISSOURI. ANOTHER AREA OF SHOWERS AND THUNDERSTORMS STRETCHED FROM WESTCENTRAL TO EASTCENTRAL MISSOURI. SEVERE THUNDERSTORMS...WITH VERY HEAVY RAIN...STRONG GUSTY WINDS AND HAIL...WERE OVER NORTHERN ANDREW AND SOUTHERN HOLT COUNTIES IN MISSOURI AND EXTREME NORTHERN DONIPHAN COUNTY IN KANSAS. STORMS WERE MOVING SOUTHEAST AT 25 MPH.
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 7:20 PM CDT | Severe Thunderstorm Warning | EAX | Clinton | 55 min |
| Jun 12, 7:27 PM CDT | Severe Thunderstorm Warning | EAX | Clay | 63 min |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.