Alert archive / Missouri / Flash Flood Warnings in 1998

Flash Flood Warning 6, NWS Kansas City, MO

April 14, 1998DeKalb County, Missouri

NWS Kansas City, MO issued this flash flood warning at Apr 14, 1998, 9:50 PM CDT for DeKalb County, Missouri. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Apr 14, 1998, 9:50 PM CDT (02:50 UTC)
Expired: Apr 15, 1998, 1:00 AM CDT
In force: 3 hr
Issued by: NWS Kansas City, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

County DeKalb County, MO

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 2.8 hours before the alert went out and 148 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: 36 J/kg
Mixed-layer CIN: -135 J/kg
Mixed-layer LCL: 2148 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 200 m²/s²
0-3 km storm-relative helicity: 361 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 
TTAA00 KSTL 150252
FFWMCI
MOC063-150550-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PLEASANT HILL KANSAS CITY MO
950 PM CDT TUE APR 14 1998

* FLASH FLOOD WARNING FOR
     DEKALB COUNTY IN MISSOURI
     INCLUDING MAYSVILLE

* UNTIL 100 AM CDT

* CAUSE AND EFFECT
HEAVY RAINFALL ACROSS THE AREA WILL RESULT IN FLASH FLOODING ON 
STREAMS AND CREEKS IN THE COUNTY. DOPPLER RADAR ESTIMATES UP TO 1.5 
INCHES OF RAIN HAS FALLEN IN THE PAST COUPLE OF HOURS. 

* FORECAST CONDITIONS
MORE STRONG THUNDERSTORMS...WITH HEAVY RAIN...WILL MOVE ACROSS THE 
COUNTY BEFORE MIDNIGHT.

DON'T DRIVE ACROSS FLOODED ROADS! MOST FLASH FLOOD DEATHS OCCUR IN
AUTOMOBILES.

LAT...LON 4004 9425 3975 9424 3975 9461 4005 9462


POLSTON

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.

NWS Kansas City, MO wrote its last area forecast discussion before this flash flood warning went out at Apr 14, 2:55 PM CDT, 6 hours 55 minutes earlier.

Area forecast discussion, Apr 14, 2:55 PM CDT, 6 hours 55 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
255 PM CDT TUE APR 14 1998

CONVECTIVE POTENTIAL AT THE FOREFRONT THIS PKG. SPC FIRED FIRST SHOT
INTO SE NEB/NCNTRL KS...AND EXPECT FURTHER CONVECTION ON DOWN THE
DRYLINE TONIGHT. SEE SPSMCI FOR FURTHER DETAILS.

FCST OUT THE REST OF THE PERIOD GETS A LITTLE DICIER. ETA FASTER
THAN OTHER MDLS IN FLINGING SFC LOW THROUGH CWA...WITH NGM/AVN
ALLOWING LOW TO DAWDLE OVER US. ATTM WL OPT FOR A BLEND OF
ETA/AVN...WITH SLIGHTLY PROGRESSIVE MOVEMENT. MIDLVL INSTABILITY
REMAINS DECENT THROUGH PD...OFFERING CHC TRW THROUGH 36H.

MOS TEMPS NOT ALL THAT FAR APART AND FAIRLY REASONABLE.

.EAX...
MO...NONE
KS...NONE

JHV

In the hours before

Local storm report, Apr 14, 8:43 PM CDT, 1 hour 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
843 PM CDT TUE APR 14 1998

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0832 PM    BEAGLE                    KS    .75 INCH HAIL
04/14/98   MIAMI                           DIME SIZE HAIL IN
                                           SOUTHERN PART OF COUNTY

Local storm report, Apr 14, 8:43 PM CDT, 1 hour 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
843 PM CDT TUE APR 14 1998

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0832 PM    BEAGLE                    KS    .75 INCH HAIL
04/14/98   MIAMI                           DIME SIZE HAIL IN
                                           SOUTHERN PART OF COUNTY

Local storm report, Apr 14, 9:19 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
919 PM CDT TUE APR 14 1998

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0910 PM    SAN ANTONIO               MO    .88 INCH HAIL
04/14/98   BUCHANAN

Local storm report, Apr 14, 9:19 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
919 PM CDT TUE APR 14 1998

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0910 PM    SAN ANTONIO               MO    .88 INCH HAIL
04/14/98   BUCHANAN

Local storm report, Apr 14, 9:33 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
933 PM CDT TUE APR 14 1998

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0925 PM    WORLAND                   MO    1 INCH HAIL
04/14/98   BATES

0930 PM    1 N HARRISONVILLE         MO    1 INCH HAIL
04/14/98   CASS

Local storm report, Apr 14, 9:33 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
933 PM CDT TUE APR 14 1998

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0925 PM    WORLAND                   MO    1 INCH HAIL
04/14/98   BATES

0930 PM    1 N HARRISONVILLE         MO    1 INCH HAIL
04/14/98   CASS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 8:15 PM CDT	Severe Thunderstorm Warning	EAX	Jackson	30 min
Apr 14, 8:23 PM CDT	Severe Thunderstorm Warning	EAX	Andrew	32 min
Apr 14, 8:25 PM CDT	Flash Flood Warning	EAX	Andrew, Holt	3 hr
Apr 14, 8:29 PM CDT	Tornado Warning	EAX	Andrew	31 min
Apr 14, 8:58 PM CDT	Tornado Warning	EAX	DeKalb	22 min
Apr 14, 9:06 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan	29 min
Apr 14, 9:10 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, DeKalb	30 min
Apr 14, 9:27 PM CDT	Severe Thunderstorm Warning	EAX	Bates	43 min
Apr 14, 10:12 PM CDT	Tornado Warning	EAX	Cass, Henry, Johnson	48 min
Apr 14, 10:35 PM CDT	Tornado Warning	EAX	Nodaway	30 min
Apr 14, 11:02 PM CDT	Severe Thunderstorm Warning	EAX	Pettis	28 min
Apr 14, 11:26 PM CDT	Tornado Warning	EAX	Bates, Cass	29 min
Apr 14, 11:53 PM CDT	Severe Thunderstorm Warning	EAX	Henry, Johnson	47 min
Apr 15, 12:01 AM CDT	Severe Thunderstorm Warning	EAX	Gentry	29 min
Apr 15, 3:44 AM CDT	Severe Thunderstorm Warning	EAX	Bates	51 min

Nearby

Flash Flood Warnings in Missouri, 1998 Every flash flood warning in 1998

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.