Alert archive / Missouri / Flash Flood Warnings in 1993

Flash Flood Warning 101, NWS Kansas City, MO

July 13, 1993Chariton County, Macon County, Missouri

NWS Kansas City, MO issued this flash flood warning at Jul 13, 1993, 1:27 PM CDT for Chariton County, Macon County, Missouri. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jul 13, 1993, 1:27 PM CDT (18:27 UTC)
Expired: Jul 13, 1993, 4:30 PM CDT
In force: 3 hr
Issued by: NWS Kansas City, MO
Area: Whole counties

Counties Chariton County, MO, Macon County, MO

The nearest sounding before it

Springfield, MO (KUMN), launched 12:00Z, 6.5 hours before the alert went out and 321 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: 854 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 953 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 157 m²/s²
0-3 km storm-relative helicity: 156 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCOU 131828
FFWCOU
MOC041-121-132130-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE COLUMBIA MO
127 PM CDT TUE JUL 13 1993
 
THE NATIONAL WEATHER SERVICE IN COLUMBIA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  430 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL MISSOURI
 
   ...CHARITON COUNTY...MACON COUNTY
 
AT 120 PM THUNDERSTORMS WERE DUMPING HEAVY RAIN ACROSS NORTH SECTIONS OF
CENTRAL MISSOURI FROM 35 MILES NORTH OF SEDALIA NEAR BRUNSWICK TO MACON.
THE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 25 MILES AN
HOUR...WHILE THE GENERAL AREA OF PRECIPITATION WAS DRIFTING TO THE
SOUTHEAST. THUNDERSTORMS DUMPED 2 INCHES OF RAIN AT ATLANTA IN NORTHERN
MACON COUNTY BETWEEN 1215 AND 115 THIS AFTERNOON. MANY CREEKS AND RIVERS
WERE ALREADY FLOODING IN THIS AREA AND ANY ADDITIONAL RAINFALL WILL
QUICKLY AGGRAVATE AN ALREADY BAD SITUATION.
 
 
MOST FLASH FLOOD DEATHS OCCUR IN CARS AND TRUCKS. DO NOT DRIVE
ACROSS A FLOODED ROADWAY. A FEW INCHES OF RAPIDLY MOVING WATER CAN
SWEEP AWAY A CAR. IF YOUR CAR BECOMES CAUGHT IN RISING WATER...GET
OUT AND MOVE TO HIGHER GROUND.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS TAKING PLACE OR ABOUT
TO TAKE PLACE. KNOW WHERE YOU ARE AT FROM STREAMS...RIVERS AND
CREEKS THAT CAN BECOME KILLERS DURING HEAVY RAINS. IF YOU KNOW OF
ANY NEIGHBORS THAT MAY HAVE A HARD TIME ESCAPING FLOOD WATERS...HELP
THEM OR LET OTHERS KNOW ABOUT THEM.
 
LA GREE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 8:23 AM CDT	Flash Flood Warning	EAX	Atchison, Holt, Nodaway	5 hr
Jul 13, 9:26 AM CDT	Flash Flood Warning	EAX	Gentry	5 hr
Jul 13, 11:32 AM CDT	Flash Flood Warning	EAX	Buchanan, Clinton	3 hr
Jul 13, 1:35 PM CDT	Flash Flood Warning	EAX	Holt	2 hr
Jul 13, 2:45 PM CDT	Severe Thunderstorm Warning	EAX	Boone	45 min
Jul 13, 2:57 PM CDT	Tornado Warning	EAX	Boone	33 min
Jul 13, 4:16 PM CDT	Flash Flood Warning	EAX	Boone, Callaway, Cole	2 hr
Jul 13, 4:16 PM CDT	Flash Flood Warning	EAX	Moniteau	2 hr

Nearby

Flash Flood Warnings in Missouri, 1993 Every flash flood warning in 1993

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.