Alert archive / Missouri / Flash Flood Warnings in 2003

Flash Flood Warning 1, NWS Kansas City, MO

May 9, 2003Cass County, Missouri

NWS Kansas City, MO issued this flash flood warning at May 9, 2003, 9:16 PM CDT for Cass County, Missouri. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 9, 2003, 9:16 PM CDT (02:16 UTC)
Expired: May 10, 2003, 3:15 AM CDT
In force: 6 hr
Issued by: NWS Kansas City, MO
Area: Counties, with a storm outline in the text

County Cass County, MO

The radar

The Pleasant Hill radar (KEAX), 24 km from the middle of the area, began a volume at 02:20 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 2.3 hours before the alert went out and 121 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: 173 J/kg
Mixed-layer CIN: -412 J/kg
Mixed-layer LCL: 1579 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 422 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KEAX 100218
FFWEAX
MOC037-100815-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
916 PM CDT FRI MAY 9 2003

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CASS COUNTY IN WEST CENTRAL MISSOURI

* UNTIL 315 AM CDT

* AT 915 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.

* SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE
  WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
  FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING
  INCLUDE...HARRISONVILLE...RAYMORE...PLEASANT HILL...PECULIAR...
  GARDEN CITY...FREEMAN...DAYTON AND BELTON.

DOPPLER RADAR ESTIMATED AN INCH AND A HALF TO TWO INCHES OF RAIN HAS 
FALLEN IN PORTIONS OF THE COUNTY. RUNOFF FROM THIS EXCESSIVE 
RAINFALL WILL LEAD TO RAPID RISES...AND THE THREAT OF FLASH 
FLOODING...ON THE FOLLOWING STREAMS AND CREEKS...BIG CREEK AND ITS 
TRIBUTARIES...SOUTH GRAND AND ITS TRIBUTARIES.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3849 9460 3883 9460 3882 9420 3855 9419
          3856 9412 3847 9411

$$


PC

1 follow-up statement

000 
WGUS73 KEAX 100819
FFSEAX
MOC037-100830-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
318 AM CDT SAT MAY 10 2003

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR CASS COUNTY HAS
BEEN ALLOWED TO EXPIRE...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY OR TO THE
NATIONAL WEATHER SERVICE IN PLEASANT HILL.

ADDITIONAL STRONG THUNDERSTORMS PRODUCING HEAVY RAINFALL ARE 
POSSIBLE THIS MORNING AND ADDITIONAL ADVISORIES OR WARNINGS MAY BE 
NEEDED. 

LAT...LON 3848 9430 3849 9458 3882 9459 3882 9413
          3866 9414 3848 9410

$$

MJ

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 7:31 PM CDT	Severe Thunderstorm Warning	EAX	Johnson	59 min
May 9, 7:42 PM CDT	Severe Thunderstorm Warning	EAX	Lafayette	63 min
May 9, 8:22 PM CDT	Severe Thunderstorm Warning	EAX	Saline	38 min
May 9, 8:23 PM CDT	Severe Thunderstorm Warning	EAX	Howard, Randolph	67 min
May 9, 8:43 PM CDT	Severe Thunderstorm Warning	EAX	Cass	62 min
May 9, 8:55 PM CDT	Severe Thunderstorm Warning	EAX	Jackson	65 min
May 9, 9:09 PM CDT	Severe Thunderstorm Warning	EAX	Lafayette	66 min
May 9, 9:11 PM CDT	Severe Thunderstorm Warning	EAX	Macon	64 min
May 9, 9:30 PM CDT	Tornado Warning	EAX	Cass	30 min
May 9, 10:01 PM CDT	Severe Thunderstorm Warning	EAX	Jackson	59 min
May 9, 10:03 PM CDT	Tornado Warning	EAX	Lafayette	42 min
May 9, 10:12 PM CDT	Severe Thunderstorm Warning	EAX	Cass	63 min
May 9, 10:16 PM CDT	Tornado Warning	EAX	Saline	59 min
May 9, 10:28 PM CDT	Severe Thunderstorm Warning	EAX	Johnson	62 min
May 9, 10:44 PM CDT	Tornado Warning	EAX	Johnson	61 min
May 9, 11:21 PM CDT	Severe Thunderstorm Warning	EAX	Pettis	39 min
May 9, 11:30 PM CDT	Severe Thunderstorm Warning	EAX	Johnson	45 min
May 10, 3:22 AM CDT	Severe Thunderstorm Warning	EAX	Cooper	53 min
May 10, 3:29 AM CDT	Severe Thunderstorm Warning	EAX	Henry	46 min
May 10, 3:38 AM CDT	Severe Thunderstorm Warning	EAX	Jackson	37 min
May 10, 3:49 AM CDT	Severe Thunderstorm Warning	EAX	Johnson	56 min
May 10, 3:58 AM CDT	Severe Thunderstorm Warning	EAX	Clay	62 min
May 10, 4:20 AM CDT	Severe Thunderstorm Warning	EAX	Pettis	40 min
May 10, 4:21 AM CDT	Severe Thunderstorm Warning	EAX	Platte	39 min
May 10, 4:33 AM CDT	Severe Thunderstorm Warning	EAX	Saline	57 min
May 10, 4:38 AM CDT	Severe Thunderstorm Warning	EAX	Cooper	37 min
May 10, 4:45 AM CDT	Severe Thunderstorm Warning	EAX	Jackson	60 min
May 10, 4:55 AM CDT	Severe Thunderstorm Warning	EAX	Ray	65 min
May 10, 5:11 AM CDT	Severe Thunderstorm Warning	EAX	Cass	64 min
May 10, 5:23 AM CDT	Severe Thunderstorm Warning	EAX	Lafayette	67 min
May 10, 5:26 AM CDT	Severe Thunderstorm Warning	EAX	Howard	49 min
May 10, 5:33 AM CDT	Severe Thunderstorm Warning	EAX	Johnson	72 min
May 10, 5:36 AM CDT	Flash Flood Warning	EAX	Cooper, Howard, Pettis, Saline	6 hr
May 10, 5:57 AM CDT	Flash Flood Warning	EAX	Randolph	6 hr
May 10, 6:02 AM CDT	Severe Thunderstorm Warning	EAX	Cass	13 min
May 10, 1:20 PM CDT	Severe Thunderstorm Warning	EAX	Carroll	55 min
May 10, 3:15 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Ray	60 min
May 10, 3:17 PM CDT	Severe Thunderstorm Warning	EAX	DeKalb, Gentry	43 min
May 10, 3:23 PM CDT	Severe Thunderstorm Warning	EAX	Johnson	67 min
May 10, 3:25 PM CDT	Severe Thunderstorm Warning	EAX	Harrison	50 min
May 10, 3:31 PM CDT	Severe Thunderstorm Warning	EAX	Daviess	44 min
May 10, 3:39 PM CDT	Tornado Warning	EAX	Daviess, Harrison	51 min
May 10, 3:47 PM CDT	Tornado Warning	EAX	Linn	58 min
May 10, 4:02 PM CDT	Tornado Warning	EAX	Carroll	58 min
May 10, 4:11 PM CDT	Severe Thunderstorm Warning	EAX	Mercer	64 min
May 10, 4:16 PM CDT	Severe Thunderstorm Warning	EAX	Lafayette, Saline	59 min
May 10, 4:18 PM CDT	Tornado Warning	EAX	Chariton	42 min
May 10, 4:25 PM CDT	Tornado Warning	EAX	Adair, Sullivan	65 min
May 10, 4:32 PM CDT	Tornado Warning	EAX	Saline	43 min
May 10, 4:43 PM CDT	Tornado Warning	EAX	Macon	47 min
May 10, 4:45 PM CDT	Severe Thunderstorm Warning	EAX	Putnam	60 min
May 10, 4:55 PM CDT	Tornado Warning	EAX	Putnam	65 min
May 10, 5:07 PM CDT	Severe Thunderstorm Warning	EAX	Chariton, Howard	53 min
May 10, 5:12 PM CDT	Severe Thunderstorm Warning	EAX	Randolph	63 min
May 10, 5:21 PM CDT	Tornado Warning	EAX	Randolph	39 min
May 10, 5:44 PM CDT	Tornado Warning	EAX	Cooper	46 min
May 10, 5:58 PM CDT	Tornado Warning	EAX	Randolph	32 min
May 10, 6:01 PM CDT	Tornado Warning	EAX	Putnam	29 min
May 10, 6:13 PM CDT	Tornado Warning	EAX	Henry	47 min
May 10, 6:30 PM CDT	Severe Thunderstorm Warning	EAX	Saline	45 min
May 10, 6:52 PM CDT	Severe Thunderstorm Warning	EAX	Chariton	38 min

Nearby

Flash Flood Warnings in Missouri, 2003 Every flash flood warning in 2003

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; radar from the NEXRAD Level II archive.