Alert archive / Kansas / Flash Flood Warnings in 1986
Flash Flood Warning 7, NWS Topeka, KS
NWS Topeka, KS issued this flash flood warning at Sep 27, 1986, 11:45 PM CDT for 4 counties in Kansas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Sep 27, 1986, 11:45 PM CDT (04:45 UTC)
- Expired
- Sep 28, 1986, 3:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Topeka, KS
- Area
- Whole counties
Counties Coffey County, KS, Franklin County, KS, Lyon County, KS, 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, 4.8 hours before the alert went out and 59 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
- 2492 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTOP 280445 FFWTOP KSC111-139-031-059-280800- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TOPEKA KS 1145 PM CDT SAT SEP 27 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 300 AM CDT SUNDAY FOR PEOPLE IN THE FOLLOWING COUNTIES IN EAST CENTRAL KANSAS... ...OSAGE FRANKLIN NORTHWEST COFFEY AND THE NORTHERN TWO THIRDS OF LYON AT 1145 PM CDT AN AREA OF THUNDERSTORMS CONTAINING VERY HEAVY RAINS CONTINUED OVER THE WESTERN PORTION OF THE WARNING AREA. THESE THUNDER/ STORMS HAVE PRODUCED OVER TWO INCHES OF RAIN IN LESS THAN AN HOUR AND COMPUTER ESTIMATES OF NEARLY THREE INCHES OF RAIN ARE POSSIBLE IN THE WARNING AREA. THIS WARNING INCLUDES MUCH OF THE AREA THAT RECEIVED VERY HEAVY RAINS THE LAST 24 HOURS SO THE GROUND IS ALREADY SATURATED. A FLASH FLOOD WARNING MEANS FLOODING IS IN PROGRESS OR EXPECTED TO OCCUR SHORTLY. TAKE NECESSARY PRECAUTIONS IMMEDIATELY. RUNOFF FROM HE@AVY RAINS WILL LIKELY FLOOD STREAMS AND LOW AREAS. BE CAREFULL DRIVING AND DON/T TRY TO CROSS WATER RUSHING ACROSS ROADS. STAY AWAY FROM AREAS SUSCEPTIBLE TO FLOODING LIKE SMALL STREAMS... LOW LYING AREAS AND UNDERPASSES. KAYS
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, Sep 27, 7:09 PM CDT, 4 hours 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 705 PM CDT SAT SEP 27 1986 AT 705PM CDT ISOLATED INTENSE THUNDERSTORMS OVER SOUTHEAST KANSAS WERE APPROACHING A PART OF EASTCENTRAL KANSAS. ONE INTENSE STORM WAS OVER NORTHEAST GREENWOOD COUNTY. THIS STORM SHOULD BE MOVING INTO SOUTHWEST COFFEY AND EXTREME SOUTHEAST LYON COUNTY BY 725 PM CDT. THE STORM COULD PRODUCE HAIL VERY HEAVY RAINS DANGEROUS LIGHTNING AND GUSTY WINDS OVER =45 MPH AS IT MOVES TO THE NORTHEAST AROUND 25 MPH. KAYS
Special weather statement, Sep 27, 9:12 PM CDT, 2 hours 33 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 908 PM CDT SAT SEP 27 1986 AT 908PM CDT A SCATTERED AREA OF VERY HEAVY TO INTENSE THUNDERSTORMS STRETCHED FROM NEAR BALDWIN CITY IN SOUTHERN DOUGLAS COUNTY TO NORTH OF BURLINGTON IN CENTRAL COFFEY COUNTY THEN ACROSS SOUTHERN LYON COUNTY SOUTH OF EMPORIA. THE MOST INTENSE STORMS...CAPABLE OF PRODUCING VERY HEAVY RAINS GUSTY WINDS OVER 45 MPH HAIL AND DANGEROUS LIGHTNING...WERE OVER SOUTHERN LYON COUNTY. THE THUNDERSTORMS CONTINUED TO DEVELOP ALONG AND JUST TO THE NORTH OF THIS GENERAL LINE OF PRECIPITATION. THE THUNDERSTORMS WERE MOVING EASTNORTHEAST AROUND 30 MPH. WITH HEAVY RAINS AGAIN FALLING IN AREAS SOAKED BY RAINS LAST NIGHT... PERSONS OVER EASTCENTRAL KANSAS SHOULD BE ON THE ALERT FOR LOWLAND FLOODING AGAIN TONIGHT WITH THUNDERSTORMS IN THE AREA. KAYS
Special weather statement, Sep 27, 10:23 PM CDT, 1 hour 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 1020 PM CDT SAT SEP 27 1986 AT 1020 PM CDT SCATTERED THUNDERSTORMS STRETCHED FROM THE KANSAS CITY AREA SOUTHWEST THROUGH SOUTHERN OSAGE AND NORTHERN COFFEY INTO LYON AND SOUTHERN MORRIS COUNTY. THE MOST INTENSE STORMS WERE JUST SOUTHEAST OF LYNDON IN SOUTHEAST OSAGE COUNTY...ACROSS THE EMPORIA AREA AND OVER EXTREME SOUTHEAST MORRIS COUNTY. NONE OF THE THUNDERSTORMS APPEARED CAPABLE OF PRODUCING SEVERE WEATHER. HOWEVER VERY HEAVY RAINS AND GUSTY WINDS OVER 40 MPH WITH CONSIDERABLE DEADLY LIGHTNING WERE LIKELY. THUNDERSTORMS CONTINUE TO DEVELOP TO THE NORTH OF WICHITA AND MOVE EASTNORTHEAST AROUND 30 MPH. THE ENTIRE AREA OF THUNDERSTORMS WAS ALSO SHOWING A GRADUAL NORTH MOVEMENT AROUND 10 MPH. A FLASH FLOOD WATCH IS IN EFFECT FOR A LARGE PART OF EASTCENTRAL KANSAS TONIGHT. HEAVY RAINS FALLING ON NEARLY SATURATED SOILS MAY CAUSE FLASH FLOODING. KAYS
Special weather statement, Sep 27, 11:10 PM CDT, 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 1105 PM CDT SAT SEP 27 1986 AT 1105 PM CDT SCATTERED THUNDERSTORMS WERE IN AN AREA AROUND 40 MILES WIDE OVER EASTERN INTO CENTRAL KANSAS. A FEW OF THE THUNDERSTORMS WERE INTENSE. THE THUNDERSTORMS WERE ALONG AND SOUTH OF A LINE FROM EAST OF OSKALOOSA IN EASTERN JEFFERSON COUNTY TO NEAR MELVERN RESERVOIR ACROSS NORTHERN LYON COUNTY ABOUT 20 MILES NORTH OF EMPORIA CONTINUING ON SOUTHWEST TO THE NORTH OF WICHITA. THE MOST INTENSE STORMS WERE JUST NORTH OF OLATHE...ABOUT 20 MILES SOUTHWEST OF OTTAWA...OVER THE NORTH/ WEST PART OF JOHN REDMOND RESERVOIR...AND SOUTHWEST OF EMPORIA NEAR COTTONWOOD FALLS. THE MOST INTENSE STORMS WERE LIKELY PRODUCING VERY HEAVY RAINS...GUSTY WINDS OVER 40 MPH AND DEADLY LIGHTNING. THE STORMS WERE MOVING TO THE EASTNORTHEAST AT AROUND 30 MPH WHILE THE ENTIRE AREA MOVED NORTHEAST AROUND 10 MPH. A FLASH FLOOD WATCH IS IN EFFECT FOR A LARGE P(ART OF EASTCENTRAL KANSAS TONIGHT. HEAVY RAINS FALLING ON NEARLY SATURATED SOILS MAY CAUSE FLASH FLOODING. SCATTERED THUNDERSTORMS WILL LIKELY DEVELOP OVER NORTHEAST KANSAS AFTER MIDNIGHT. KAYS
The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 28, 2:25 AM CDT | Severe Thunderstorm Warning | TOP | Clay | 50 min |
| Sep 28, 4:59 PM CDT | Severe Thunderstorm Warning | TOP | Cloud | 56 min |
| Sep 28, 5:06 PM CDT | Severe Thunderstorm Warning | TOP | Washington | 54 min |
| Sep 28, 6:07 PM CDT | Severe Thunderstorm Warning | TOP | Washington | 63 min |
| Sep 28, 6:45 PM CDT | Severe Thunderstorm Warning | TOP | Jewell, Mitchell | 60 min |
| Sep 28, 6:50 PM CDT | Severe Thunderstorm Warning | TOP | Cloud | 60 min |
Nearby
Flash Flood Warnings in Kansas, 1986Every flash flood 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; the sounding from the Mesonet's radiosonde archive.