Alert archive / Missouri / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 71, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Sep 8, 1989, 7:24 PM CDT for Platte County, Missouri; Leavenworth County, Kansas. It was in force for 51 min.
The area
The counties it named.
The facts
- Issued
- Sep 8, 1989, 7:24 PM CDT (00:24 UTC)
- Expired
- Sep 8, 1989, 8:15 PM CDT
- In force
- 51 min
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties
Counties Leavenworth County, KS, Platte 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, 0.4 hours before the alert went out and 71 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
- 794 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 964 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 457 m²/s²
- 0-3 km storm-relative helicity
- 592 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 19.7
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Sep 8, 2:58 PM CDT, 4 hours 26 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE KANSAS CITY MO INTERNATIONAL AIRPORT 255 PM CDT FRI SEP 8 1989 FLASH FLOOD WATCH FOR NORTHWEST MISSOURI THE REMAINDER OF THIS AFTERNOON... THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUE ACROSS NORTHWEST MISSOURI ...NORTHEAST KANSAS...AND SOUTHWEST IOWA AT 255 PM. THE HEAVIEST STORMS WERE LOCATED FROM TOPEKA KANSAS EASTWARD THROUGH THE KANSAS CITY METROPOLITAN AREA...TO NEAR MOBERLY MISSOURI...LOCATED APPROXIMATELY 100 MILES EAST OF KANSAS CITY. THESE THUNDERSTORMS ARE MOVING EAST AT 25 MPH. THIS EASTWARD MOVING LINE OF THUNDERSTORMS IS PRODUCING HEAVY RAIN AT TOPEKA AND AT THE KANSAS CITY INTERNATIONAL AIRPORT AT 230 PM. VISIBILITIES ARE LOWERING TO LESS THAN 1/2 MILE IN THE HEAVY RAIN AND PONDING OF WATER IN LOWLYING AREAS AND ROADWAYS IS LIKELY. MOTORISTS SHOULD EXERCISE CAUTION IN TRAVEL AND REMEMBER TO NOT DRIVE THROUGH RUSHING WATER. SCATTERED THUNDERSTORMS CONTINUE OVER EXTREME NORTHWEST MISSOURI IN THE MARYVILLE AREA. THIS AREA IS BEING WATCHED VERY CLOSELY FOR THE POTENTIAL OF FLASH FLOODING. PERSONS ALONG THE 102 RIVER SHOULD BE PREPARED TO MOVE TO HIGHER GROUND AS REPORTS OF WATER OVER ROADWAYS HAS BEEN REPORTED IN NODAWAY AND NORTHERN ANDREWS COUNTIES. AT 245 PM THE RIVER GAGE AT MARYVILLE READ 12.43 WITH FLOOD STAGE AT 14 FEET. THE 102 RIVER HAS BEEN RUNNING AT BANK FULL AT ARKOE MISSOURI... ABOUT 60 MILES NORTH OF KANSAS CITY SINCE 110PM. THERE HAVE BEEN REPORTS OF SCHOOL CLOSINGS IN NORTHERN ANDREWS COUNTY DUE TO HIGH WATER HAMPERING BUS TRAVEL. RAINFALL IS EXPECTED TO CONTINUE OVER THE AREA OF NORTHWEST MISSOURI...NORTHEAST KANSAS...AND SOUTHWEST IOWA FOR THE NEXT SEVERAL HOURS. CONTINUE TO MONITOR NOAA WEATHER RADIO FOR THE LATEST WEATHER UPDATES. POOLE
Special weather statement, Sep 8, 3:38 PM CDT, 3 hours 46 minutes before
RADAR SUMMARY NATIONAL WEATHER SERVICE KANSAS CITY MO INTERNATIONAL AIRPORT 340 PM CDT SEP 8 1989 ...FLASH FLOOD WATCH IS IN EFFECT FOR NORTHWEST MISSOURI TONIGHT INCLUDING THE KANSAS CITY AND ST. JOSEPH AREAS... AT 325 PM CDT...THUNDERSTORMS SOME WITH HEAVY RAIN WERE SCATTERED FROM EASTERN KANSAS INTO NORTHWEST AND CENTRAL MISSOURI. THUNDERSTORMS WITH VERY HEAVY RAIN WERE FROM JUST EAST OF TOPEKA KANSAS TO 20 MILES SOUTHWEST OF LEAVENWORTH KANSAS TO 35 MILES EAST OF KANSAS CITY MISSOURI. OTHER SHOWERS AND THUNDERSTORMS WERE OVER SOUTHEAST NEBRASKA AND SOUTHWEST IOWA. THE SHOWERS AND THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 25 MILES AN HOUR. AMIS
Special weather statement, Sep 8, 4:38 PM CDT, 2 hours 46 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE KANSAS CITY MO INTERNATIONAL AIRPORT 435 PM CDT SEP 8 1989 ...FLASH FLOOD WARNINGS IN EFFECT FOR SOUTHERN PLATTE...CLAY AND WYANDOTTE COUNTIES IN THE KANSAS CITY AREA UNTIL 645 PM... ...FLASH FLOOD WATCH IS IN EFFECT FOR NORTHWEST MISSOURI TONIGHT INCLUDING THE KANSAS CITY AND ST. JOSEPH AREAS... AT 425 PM CDT...THUNDERSTORMS WITH HEAVY RAIN WERE SCATTERED FROM EASTCENTRAL KANSAS THRU WESTCENTRAL MISSOURI. THE STRONGEST STORM WITH VERY HEAVY RAIN WAS 20 MILES SOUTH OF KANSAS CITY. THESE STORMS WERE PART OF A LARGE AREA OF SCATTERED SHOWERS AN THUNDERSTORMS OVER EASTCENTRAL AND NORTHEAST KANSAS...SOUTHEAST NEBRASKA...S"OUTHERN IOWA AND THE NORTH HALF OF MISSOURI. THE SHOWERS AND THUNDERSTORMS WERE MOVING TOWARD THE EAST AT 25 MILES AN HOUR.
Special weather statement, Sep 8, 5:34 PM CDT, 1 hour 50 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE KANSAS CITY MO INTERNATIONAL AIRPORT 535 PM CDT SEP 8 1989 ...FLASH FLOOD WARNINGS IN EFFECT FOR SOUTHERN PLATTE...CLAY AND WYANDOTTE COUNTIES IN THE KANSAS CITY AREA UNTIL 645 PM... ...FLASH FLOOD WATCH IS IN EFFECT FOR NORTHWEST MISSOURI TONIGHT INCLUDING THE KANSAS CITY AND ST. JOSEPH AREAS... AT 525 PM CDT...THUNDERSTORMS WITH VERY HEAVY RAIN WERE SCATTERED FROM EASTCENTRAL KANSAS THRU WESTCENTRAL...TO CENTRAL MISSOURI. THE STORNGEST STORM...PRODUCING BRIEF VERY HEAVY RAIN AND 1/4 INCH HAIL...WAS 5 MILES SOUTHWEST OF TOPEKA KANSAS. THESE STORMS WERE PART OF A LARGE AREA OF SCATTERED SHOWERS AN THUNDERSTORMS OVER EASJTCENTRAL AND NORTHEAST KANSAS...SOUTHEAST NEBRASKA...SOUTHERN IOWA AND THE NORTH HALF OF MISSOURI. THE SHOWERS AND THUNDERSTORMS WERE MOVING TOWARD THE EAST...NORTHEAST AT 25 MPH.
Special weather statement, Sep 8, 6:37 PM CDT, 47 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE KANSAS CITY MO INTERNATIONAL AIRPORT 635 PM CDT SEP 8 1989 ...FLASH FLOOD WARNINGS IN EFFECT FOR SOUTHERN PLATTE...CLAY AND WYANDOTTE COUNTIES IN THE KANSAS CITY AREA UNTIL 645 PM... ...FLASH FLOOD WATCH IS IN EFFECT FOR NORTHWEST MISSOURI TONIGHT INCLUDING THE KANSAS CITY AND ST. JOSEPH AREAS... AT 630 PM CDT...SCATTERED SHOWERS AND THUNDERSTORMS...A FEW WITH VERY HEAVY RAIN...WERE OCCURRING OVER NORTHEAST KANSAS...SOUTHEAST NEBRASKA...SOUTHWEST IOWA AND THE NORTHERN HALF OF MISSOURI. THE STRONGEST AND MOST NUMEROUS STORMS WERE OVER NORTHEAST KANSAS... BETWEEN TOPEKA AND KANSAS CITY. THE STRONGEST STORM WAS 10 MILES EAST NORTHEAST OF TOPEKA KANSAS. THE SHOWERS AND THUNDERSTORMS WERE MOVING TOWARD THE NORTHEAST AT 25 MPH.
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 8:15 PM CDT | Flash Flood Warning | EAX | Clay, Platte | 3 hr |
| Sep 8, 9:11 PM CDT | Flash Flood Warning | EAX | Andrew, Nodaway | 5 hr |
| Sep 8, 11:15 PM CDT | Flash Flood Warning | EAX | Clay, Platte | 3 hr |
| Sep 9, 4:13 AM CDT | Flash Flood Warning | EAX | Platte | 57 min |
| Sep 9, 4:13 AM CDT | Flash Flood Warning | EAX | Clay, Clinton | 57 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1989Severe Thunderstorm Warnings in Kansas, 1989Every severe thunderstorm warning in 1989
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.