Alert archive / Kansas / Flash Flood Warnings in 1990

Flash Flood Warning 2, NWS Topeka, KS

May 15, 1990Lyon County, Kansas

NWS Topeka, KS issued this flash flood warning at May 15, 1990, 7:28 AM CDT for Lyon County, Kansas. It was in force for 119 min.

The area

The counties it named.

The facts

Issued
May 15, 1990, 7:28 AM CDT (12:28 UTC)
Expired
May 15, 1990, 9:27 AM CDT
In force
119 min
Issued by
NWS Topeka, KS
Area
Whole counties

County Lyon 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 12:00Z, 0.5 hours before the alert went out and 75 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.

Skew-T log-pSkew-T log-p diagram, Topeka, KS at 12:00Z on 1990-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 263 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 12:00Z on 1990-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 249 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
263 J/kg
Mixed-layer CIN
-127 J/kg
Mixed-layer LCL
606 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
249 m²/s²
0-3 km storm-relative helicity
389 m²/s²
Significant tornado parameter
0.3
Supercell composite
8.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KTOP 151236
FFWTOP
KSC111-139-151530-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
728 AM CDT TUE MAY 15 1990
 
THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1030 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN EAST CENTRAL KANSAS
          ...LYON...OSAGE
 
A FLASH FLOOD WARNING IS IN EFFECT FOR LYON AND OSAGE COUNTIES UNTIL
1030AM CDT. AT 725AM CDT CARS WERE BEING WASHED OFF ROADWAYS TO THE
NORTH AND SOUTH OF EMPORIA. INTENSE THUNDERSTORMS WERE CONTINUING OVER
LYON COUNTY EXTENDING INTO OSAGE COUNTY. RAIN TOTALS OF 2 TO 4 INCHES
ARE POSSIBLE IN A SHORT TIME.
 
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 WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM... EVEN A SMALL
ONE... ON FOOT.

The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 15, 12:07 AM CDTSevere Thunderstorm WarningTOPPottawatomie53 min
May 15, 12:17 AM CDTSevere Thunderstorm WarningTOPDickinson58 min
May 15, 1:29 AM CDTSevere Thunderstorm WarningTOPBarton, Russell46 min
May 15, 4:54 AM CDTSevere Thunderstorm WarningTOPRice34 min
May 15, 4:54 AM CDTSevere Thunderstorm WarningTOPMcPherson43 min
May 15, 7:28 AM CDTFlash Flood WarningTOPOsage3 hr
May 15, 7:48 AM CDTFlash Flood WarningTOPDouglas99 min
May 15, 8:05 AM CDTFlash Flood WarningTOPClay, Cloud, Washington4 hr
May 15, 8:05 AM CDTFlash Flood WarningTOPRepublic4 hr
May 15, 8:48 AM CDTSevere Thunderstorm WarningTOPNemaha, Pottawatomie39 min
May 15, 12:19 PM CDTFlash Flood WarningTOPDouglas, Osage3 hr
May 15, 12:38 PM CDTFlash Flood WarningTOPFranklin2 hr
May 15, 5:16 PM CDTSevere Thunderstorm WarningTOPDickinson34 min
May 15, 5:49 PM CDTSevere Thunderstorm WarningTOPJackson41 min

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.