Alert archive / Kansas / Flash Flood Warnings in 1990
Flash Flood Warning 12, NWS Topeka, KS
NWS Topeka, KS issued this flash flood warning at May 20, 1990, 11:00 PM CDT for Osage County, Kansas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 20, 1990, 11:00 PM CDT (04:00 UTC)
- Expired
- May 21, 1990, 2:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Topeka, KS
- Area
- Whole counties
County Osage County, KS
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, 4.0 hours before the alert went out and 39 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1191 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KTOP 210401
FFWTOP
KSC139-210700-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
1100 PM CDT SUN MAY 20 1990
THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 200 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN EAST CENTRAL KANSAS
...OSAGE
THUNDERSTORMS CONTAINING VERY HEAVY RAIN ARE ABOUT TO AGAIN PASS OVER
OSAGE COUNTY. AT 1055 PM THESE STORMS EXTENDED FROM ABOUT ABOUT 20
MILES SOUTHWEST OF TOPEKA ACROSS OSAGE COUNTY TO ABOUT 15 MILES SOUTH
OF OTTAWA. THESE NEW STORMS WILL BE MOVING OVER ALREADY SATURATED
SOIL. RAINS OF 2 TO 3 INCHES SINCE 9PM MAY FALL IN THIS AREA...
THEREFORE PEOPLE IN OSAGE COUNTY CAN EXPECT RAPID RISES OF CREEKS,
SMALL STREAMS, AND UNDERPASSES.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS BRIDGES... DIPS... OR LOW SPOTS IF WA.TER COVERS
THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM... EVEN A SMALL
ONE... ON FOOT.What forecasters said that day
The local office's own words before this flash flood 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 20, 9:10 PM CDT, 1 hour 50 minutes before
KSZ013>016-2002300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 909 PM CDT SAT MAY 20 1990 ...A SEVERE THUNDERSTORM WATCH COVERS PORTIONS OF EAST-CENTRAL AND SOUTHEAST KANSAS THROUGH 3AM. THE SEVERE THUNDERSTORM WATCH IS EAST OF A LINE FROM 30 MILES NORTHWEST OF OTTAWA TO CHANUTE... ... A FLASH FLOOD WATCH ALSO COVERS MUCH OF THIS AREA... THE FLASH FLOOD WATCH IS ROUGHLY EAST OF A LINE FROM ARKANSAS CITY TO EMPORIA... AND SOUTH OF A LINE FROM EMPORIA TO OTTAWA TO THE MISSOURI BORDER... AT 905 PM CDT THE HEAVIEST THUNDERSTORMS IN NORTHEAST KANSAS WERE FROM 20 MILES SOUTH OF TOPEKA TO NEAR OTTAWA. THE STORMS WERE MOVING TO THE NORTH- NORTHEAST AROUND 20 MPH. SO FAR WINDS KOF UP TO 35 MPH AND PEA SIZED HAIL HAVE BEEN REPORTED WITH THESE STORMS FROM OSAGE COUNTY... ABOUT 25 MILES SOUTH OF TOPEKA. MAY
Special weather statement, May 20, 9:37 PM CDT, 1 hour 23 minutes before
KSZ013>016-210330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 936 PM CDT SAT MAY 20 1990 ...A SEVERE THUNDERSTORM WATCH COVERS PORTIONS OF EAST-CENTRAL AND SOUTHEAST KANSAS THROUGH 3AM. THE SEVERE THUNDERSTORM WATCH IS EAST OF A LINE FROM 30 MILES NORTHWEST OF OTTAWA TO CHANUTE... ... A FLASH FLOOD WATCH ALSO COVERS MUCH OF THIS AREA... THE FLASH FLOOD WATCH IS ROUGHLY EAST OF A LINE FROM ARKANSAS CITY TO EMPORIA... AND SOUTH OF A LINE FROM EMPORIA TO OTTAWA TO THE MISSOURI BORDER... AT 932 PM THE STRONGEST THUNDERSTORMS WERE FROM 5 MILES WEST OF OTTAWA TO 50 SOUTH OF KANSAS CITY. ANOTHER STRONG THUNDERSTORM WAS OVER ROSSVILLE... OR ABOUT 15 MILES NORTHWEST OF TOPEKA. NO SEVERE WEATHER HAD BEEN REPORTED WITH THESE STORMS... HOWEVER BRIEFLY GUSTY WINDS AND SMALL HAIL ARE LIKELY AS THEY MOVE NORTH INTO SHAWNEE AND DOUGLAS COUNTIES BETWEEN 930 AND 1030 PM. PEOPLE IN THESE AREAS SHOULD ALSO BE ON THE LOOKOUT FOR RAPILDY RISING CREEKS AND SMALL STREAMS. THESE STRONG THUNDERSTORMS WERE PART OF A LONG LINE OF THUNDERSTORMS AVERAGING 20 MILES WIDE AND EXTENDING FROM NEAR MANHATTAN ACROSS OTTAWA TO ABOUT 50 MILES SOUTH OF KANSAS CITY. MAY
Special weather statement, May 20, 9:45 PM CDT, 1 hour 15 minutes before
KSZ013>016-210330- SPECIAL WEATHER STATEMENT...CORRECTED DAY IN HEADER NATIONAL WEATHER SERVICE TOPEKA KS 944 PM CDT SUN MAY 20 1990 ...A SEVERE THUNDERSTORM WATCH COVERS PORTIONS OF EAST-CENTRAL AND SOUTHEAST KANSAS THROUGH 3AM. THE SEVERE THUNDERSTORM WATCH IS EAST OF A LINE FROM 30 MILES NORTHWEST OF OTTAWA TO CHANUTE... ... A FLASH FLOOD WATCH ALSO COVERS MUCH OF THIS AREA... THE FLASH FLOOD WATCH IS ROUGHLY EAST OF A LINE FROM ARKANSAS CITY TO EMPORIA... AND SOUTH OF A LINE FROM EMPORIA TO OTTAWA TO THE MISSOURI BORDER... AT 932 PM THE STRONGEST THUNDERSTORMS WERE FROM 5 MILES WEST OF OTTAWA TO 50 SOUTH OF KANSAS CITY. ANOTHER STRONG THUNDERSTORM WAS OVER ROSSVILLE... OR ABOUT 15 MILES NORTHWEST OF TOPEKA. NO SEVERE WEATHER HAD BEEN REPORTED WITH THESE STORMS... HOWEVER BRIEFLY GUSTY WINDS AND SMALL HAIL ARE LIKELY AS THEY MOVE NORTH INTO SHAWNEE AND DOUGLAS COUNTIES BETWEEN 930 AND 1030 PM. PEOPLE IN THESE AREAS SHOULD ALSO BE ON THE LOOKOUT FOR RAPILDY RISING CREEKS AND SMALL STREAMS. THESE STRONG THUNDERSTORMS WERE PART OF A LONG LINE OF THUNDERSTORMS AVERAGING 20 MILES WIDE AND EXTENDING FROM NEAR MANHATTAN ACROSS OTTAWA TO ABOUT 50 MILES SOUTH OF KANSAS CITY. MAY
Special weather statement, May 20, 9:55 PM CDT, 1 hour 5 minutes before
KSZ007-008-010-011-210350- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CONCORDIA KS 954 PM CDT SUN MAY 20 1990 AT 953 PM CDT RADAR SHOWED A LINE OF SHOWERS AND THUNDERSTORMS EXTENDING FROM AURORA NEBRASKA TO CONCORDIA TO 55 MILES SOUTHEAST OF SALINA NEAR COUNCIL GROVE. HEAVY RAIN...SMALL HAIL AND DANGEROUS LIGHTNING HAVE BEEN ASSOCIATED WITH THESE STORMS. THESE STORMS WERE MOVING NORTHEAST AT 25 MPH AND SHOULD BE OUT OF NORTH CENTRAL KANSAS BY MIDNIGHT. URBAN
Special weather statement, May 20, 10:01 PM CDT, 59 minutes before
QSZ013>016-210330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 958 PM CDT SUN MAY 20 1990 VERY HEAVY RAIN AND PEA SIZED HAIL WAS OCCURRING IN OTTAWA AT 948 PM. THE THUNDERSTORM OVER OTTAWA WAS MOVING TO THE NORTHEAST AT 15 TO 20 MPH. THIS THUNDERSTORM WAS PART OF A LINE OF STRONG THUNDERSTORMS CONTAINING VERY HEAVY RAIN FROM 25 MILES SOUTH OF TOPEKA TO OTTAWA TO 25 MILES SOUTHEAST OF OTTAWA. MEANWHILE... A SEVERE THUNDERSTORM WATCH COVERS PORTIONS OF EAST-CENTRAL AND SOUTHEAST KANSAS THROUGH 3AM. THE SEVERE THUNDERSTORM WATCH IS EAST OF A LINE FROM 30 MILES NORTHWEST OF OTTAWA TO CHANUTE. A FLASH FLOOD WATCH ALSO COVERS MUCH OF THIS AREA... THE FLASH FLOOD WATCH IS ROUGHLY EAST OF A LINE FROM ARKANSAS CITY TO EMPORIA... AND SOUTH OF A LINE FROM EMPORIA TO OTTAWA TO THE MISSOURI BORDER... NO SEVERE WEATHER HAD BEEN REPORTED WITH THESE STORMS... HOWEVER BRIEFLY GUSTY WINDS AND SMALL HAIL ARE LIKELY AS THEY MOVE NORTH INTO SHAWNEE AND DOUGLAS COUNTIES BETWEEN 10 AND 11 PM. PEOPLE IN THESE AREAS SHOULD ALSO BE ON THE LOOKOUT FOR RAPILDY RISING CREEKS AND SMALL STREAMS. MAY
Special weather statement, May 20, 10:03 PM CDT, 57 minutes before
KSZ013>016-210330- SPECIAL WEATHER STATEMENT...CORRECTION TO GENERIC CODE HEADING NATIONAL WEATHER SERVICE TOPEKA KS 958 PM CDT SUN MAY 20 1990 VERY HEAVY RAIN AND PEA SIZED HAIL WAS OCCURRING IN OTTAWA AT 948 PM. THE THUNDERSTORM OVER OTTAWA WAS MOVING TO THE NORTHEAST AT 15 TO 20 MPH. THIS THUNDERSTORM WAS PART OF A LINE OF STRONG THUNDERSTORMS CONTAINING VERY HEAVY RAIN FROM 25 MILES SOUTH OF TOPEKA TO OTTAWA TO 25 MILES SOUTHEAST OF OTTAWA. MEANWHILE... A SEVERE THUNDERSTORM WATCH COVERS PORTIONS OF EAST-CENTRAL AND SOUTHEAST KANSAS THROUGH 3AM. THE SEVERE THUNDERSTORM WATCH IS EAST OF A LINE FROM 30 MILES NORTHWEST OF OTTAWA TO CHANUTE. A FLASH FLOOD WATCH ALSO COVERS MUCH OF THIS AREA... THE FLASH FLOOD WATCH IS ROUGHLY EAST OF A LINE FROM ARKANSAS CITY TO EMPORIA... AND SOUTH OF A LINE FROM EMPORIA TO OTTAWA TO THE MISSOURI BORDER... NO SEVERE WEATHER HAD BEEN REPORTED WITH THESE STORMS... HOWEVER BRIEFLY GUSTY WINDS AND SMALL HAIL ARE LIKELY AS THEY MOVE NORTH INTO SHAWNEE AND DOUGLAS COUNTIES BETWEEN 10 AND 11 PM. PEOPLE IN THESE AREAS SHOULD ALSO BE ON THE LOOKOUT FOR RAPILDY RISING CREEKS AND SMALL STREAMS. MAY
The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 10:10 PM CDT | Flash Flood Warning | TOP | Franklin | 3 hr |
| May 21, 12:38 AM CDT | Flash Flood Warning | TOP | Franklin, Osage | 3 hr |
Nearby
Flash Flood Warnings in Kansas, 1990Every flash flood warning in 1990
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.