Alert archive / Missouri / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 13, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at May 18, 1987, 10:14 PM CDT for Chariton County, Macon County, Randolph County, Missouri. It was in force for 61 min.
The area
The counties it named.
The facts
- Issued
- May 18, 1987, 10:14 PM CDT (03:14 UTC)
- Expired
- May 18, 1987, 11:15 PM CDT
- In force
- 61 min
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties
Counties Chariton County, MO, Macon County, MO, Randolph 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
Topeka, KS (KTOP), launched 00:00Z, 3.2 hours before the alert went out and 264 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
- 4455 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 1095 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 4.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCOU 190314 SVRCOU MOC121-041-175-190415- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE COLUMBIA MO 1014 PM CDT MON MAY 18 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF NORTH CENTRAL MISSOURI...SOUTHERN MACON...EASTERN CHARITON AND RANDOLPH AT 1010 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM JUST ERAST OF MARCELINE MOVING SOUTHEAST AT 20 MILES AN HOUR. THIS THUNDERSTORM WILL PASS OVER THOMAS HILL RESERVOIR. BOATERS ON LAKES SHOULD MOVE TO SHELTER IMMEDIATELY. VOTAW
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 18, 6:46 PM CDT, 3 hours 28 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO 630 PM CDT MON MAY 18 1987 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PART OF EAST AND NORTHEAST KANSAS AND WEST CENTRAL AND NORTH MISSOURI UNTIL MIDNIGHT THIS MONDAY EVENING... AT 530 PM...AN INTENSE THUNDERSTORM WAS OCCURRING IN CENTRAL LEAVENWORTH COUNTY KANSAS. THE LEAVENWORTH COUNTY SHERIFF REPORTED HAIL BETWEEN 1/4 AND 1/2 INCH SIZE HAIL...HEAVY RAIN AND GUSTY WINDS JUST TO THE WEST OF THE CITY OF LEAVENWORTH. OTHER VERY HEAVY THUNDERSTORMS...WITH POSSIBLE HAIL...STRONG GUSTY SURFACE WINDS AND HEAVY RAIN...WERE IN LYON COUNTY IN KANSAS AND ALONG THE IOWA, MISSOURI STATELINE NEAR HARRISON COUNT MISSOURI. MOVEMENT WAS TOWARD THE EAST AT 20 MPH.
Special weather statement, May 18, 9:29 PM CDT, 45 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO 935 PM CDT MON MAY 18 1987 ...A SEVERE THUNDERSTORM WATCH HAS EXPIRED FOR THE KANSAS CITY METROPOLITAIN AREA AS OF 930 PM CDT... AT 930 PM...THUNDERSTORMS WITH VERY HEAVY RAIN AND POSSIBLY HAIL WERE LOCATED IN A LINE FROM 20 MILES EAST OF ST JOSEPH MISSOURI TO 100 MILES EAST OF ST JOSEPH MISSOURI. MORE INTENSE THUNDERSTORMS ...AGAIN WITH VER4Y HEAVY RAIN AND HAIL WERE 20 TO 60 MILES SOUTH OF KANSAS CITY...THIS AREA OF STORMS WAS 60 MILES WIDE WEST TO EAST. INTENSE THUNDERSTORMS WERE ALSO 75 MILES SOUTH OF TOPEKA KANSAS. MOVEMENT WAS TOWARD THE SOUTHEAST AT 20 MILES AND HOUR.
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 7:29 PM CDT | Severe Thunderstorm Warning | EAX | Jackson | 46 min |
| May 18, 7:41 PM CDT | Severe Thunderstorm Warning | EAX | Cass | 49 min |
| May 18, 7:48 PM CDT | Severe Thunderstorm Warning | EAX | Jackson | 42 min |
| May 18, 8:28 PM CDT | Tornado Warning | EAX | Bates, Cass | 32 min |
| May 18, 8:57 PM CDT | Tornado Warning | EAX | Bates, Cass | 33 min |
| May 19, 4:27 PM CDT | Severe Thunderstorm Warning | EAX | Maries, Pulaski | 33 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; the sounding from the Mesonet's radiosonde archive.