Alert archive / Missouri / Flash Flood Warnings in 1990

Flash Flood Warning 9, NWS Kansas City, MO

May 15, 1990Platte County, Missouri

NWS Kansas City, MO issued this flash flood warning at May 15, 1990, 11:07 AM CDT for Platte County, Missouri. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: May 15, 1990, 11:07 AM CDT (16:07 UTC)
Expired: May 15, 1990, 2:15 PM CDT
In force: 3 hr
Issued by: NWS Kansas City, MO
Area: Whole counties

County 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 12:00Z, 4.1 hours before the alert went out and 86 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 KMCI 151612
FFWMCI
KSC091-209-MOC095-165-047-151915-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY MISSOURI
1107 AM CDT TUE MAY 15 1990
 
THE NATIONAL WEATHER SERVICE IN KANSAS CITY MISSOURI HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  215 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN EAST CENTRAL KANSAS
          ...JOHNSON...WYANDOTTE
IN NORTHWEST MISSOURI
          ...JACKSON...PLATTE
IN WEST CENTRAL MISSOURI
          ...CLAY
 
AT 1105 AM HEAVY RAINS CONTINUED TO MOVE ACROSS THE KANSAS CITY METRO
AREA.  FLOODING HAS ALREADY OCCURRED IN SOME AREAS OF SOUTHERN SECTIONSOF KANSAS CITY.
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.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 14, 10:29 PM CDT	Severe Thunderstorm Warning	EAX	St. Clair	31 min
May 15, 6:30 AM CDT	Severe Thunderstorm Warning	EAX	Jackson	30 min
May 15, 10:18 AM CDT	Flash Flood Warning	EAX	Cole, Moniteau, Morgan	2 hr
May 15, 11:07 AM CDT	Flash Flood Warning	EAX	Clay, Jackson	3 hr
May 15, 12:36 PM CDT	Severe Thunderstorm Warning	EAX	Cooper	69 min
May 15, 12:36 PM CDT	Severe Thunderstorm Warning	EAX	Hickory	69 min
May 15, 12:43 PM CDT	Severe Thunderstorm Warning	EAX	Cooper, Howard	62 min
May 15, 1:13 PM CDT	Flash Flood Warning	EAX	Cooper, Howard, Saline	3 hr
May 15, 1:13 PM CDT	Flash Flood Warning	EAX	Pettis	3 hr
May 15, 1:27 PM CDT	Severe Thunderstorm Warning	EAX	Boone, Moniteau	33 min
May 15, 1:58 PM CDT	Tornado Warning	EAX	Callaway	32 min
May 15, 2:46 PM CDT	Flash Flood Warning	EAX	Boone, Moniteau	3 hr
May 15, 2:46 PM CDT	Flash Flood Warning	EAX	Audrain, Callaway	3 hr
May 15, 4:17 PM CDT	Severe Thunderstorm Warning	EAX	Gasconade, Montgomery	28 min
May 15, 5:06 PM CDT	Severe Thunderstorm Warning	EAX	Gasconade	39 min

Nearby

Flash Flood Warnings in Missouri, 1990 Every 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.