Alert archive / Missouri / Flash Flood Warnings in 1997

Flash Flood Warning 16, NWS Kansas City, MO

June 22, 1997Randolph County, Missouri

NWS Kansas City, MO issued this flash flood warning at Jun 22, 1997, 4:09 AM CDT for Randolph 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 counties it named.

The facts

Issued: Jun 22, 1997, 4:09 AM CDT (09:09 UTC)
Expired: Jun 22, 1997, 7:00 AM CDT
In force: 3 hr
Issued by: NWS Kansas City, MO
Area: Whole counties

County Randolph County, MO

The radar

The Pleasant Hill radar (KEAX), 168 km from the middle of the area, began a volume at 09:08 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, 9.2 hours before the alert went out and 275 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: 4157 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1134 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: -8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMCI 220908
FFWMCI
MOC175-221215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
409 AM CDT SUN JUN 22 1997

* FLASH FLOOD WARNING FOR
    EASTERN RANDOLPH COUNTY - CENTRAL MISSOURI
 
* UNTIL 700 AM CDT

* SOME STREAMS AND RIVERS AFFECTED
    ELK FORK AND ITS SMALLER TRIBUTARIES

* CAUSE AND EFFECT
STRONG THUNDERSTORMS PRODUCING TORRENTIAL RAINS WILL CONTINUE
TO MOVE OVER THE SAME AREAS FROM HUNTSVILLE EASTWARD. DOPPLER
RADAR ESTIMATES UP TO 2 1/2 INCHES OF RAIN HAS FALLEN SINCE
3 AM NEAR MOBERLY.

* FORECAST CONDITIONS
A WEAK FRONT LIES ACROSS THE AREA WITH A VERY MOIST AND
UNSTABLE AIRMASS COVERING CENTRAL MISSOURI. THUNDERSTORMS
ARE EXPECTED TO CONTINUE FORMING ON THIS BOUNDARY AND THEN MOVE
SLOWLY EASTWARD RESULTING IN VERY HEAVY RAINFALL. RAINFALL RATES
COULD EXCEED 2 INCHES PER HOUR.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

JULY

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 Jun 22, 2:58 AM CDT, 1 hour 11 minutes earlier.

Area forecast discussion, Jun 22, 2:58 AM CDT, 1 hour 11 minutes before

NORTHWEST MISSOURI FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
257 AM CDT SUN JUN 22 1997

TWO MAIN CONCERNS THIS FCST: WHAT TO DO WITH BDRY ACRS AREA CRNTLY
GENERATING CONVECTION...AND WHAT WILL TX SYS DO FOR AREA MONDAY?

SFC BDRY VCNTY COU-MKC-CNK LINE AT 07Z WITH CONVECTION TRYING TO GO
ALNG APPARANT H8 BDRY FM MOBERLY TO MARYVILLE.  ADAP AND SFC ANAL
SHOWING MOISTR CONVERGENCE AT SFC WITH LI'S STILL -5 TO -6.  EVE TOP
SOUNDING PRETTY UNSTABLE AND MODIFIED FOR CRNT CONDS STILL RESULTS
IN QUITE A BIT OF CAPE AND INSTABILITY.  WHAT IS LACKING IS GOOD
TRIGGER AS ARE CAUGHT IN MIDST OF RIDGING.  WK SHEARED S/WV TROF
WORKING ACRS AREA PER AWIPS 6.7 WAVE IMAGERY AND THIS LIKELY HELPING
CRNT ACTIVITY ACRS STATE.  LATEST SFC OBS AND LOOK OUT THE DOOR SHOWS
SOME CU FORMING...AND WILL DEFINATELY HAVE TO WATCH FOR DEVELOPMENT.
STILL...THINK BEST CHANCE OF ANY PCPN TDY WILL BE OVR NE ZONES PER
CRNT ACTION AND AS THE FNT MOVES SLOWLY NE TDY AS SHOWN BY ALL MDLS.
SO WILL HAVE TO RE-INTRO POPS TO AT LEAST NE ZONE GRP.

NEXT CONCERN IS MONDAY AS TX SYS SHEARS IN RESPONSE TO L/WV CRASHING
THE NW COAST.  IT WILL SEND PIECES OF ENERGY UP ACRS KS...ALNG WITH
ADD'L RH AND CLDS.  ATTM...ALL 3 MDLS KEEP BULK OF RH...SUPPORT...AND
PCPN TO THE WEST OF AREA AND WILL CONT WITH THIS TREND.  WILL INCR THE
CLD WORDING FOR NOW AND LET DAY CREW RE-EVALUATE.  ALSO TWEAKED THE
EXTENDED FCST IN ZONES TO ACCOUNT FOR MORE CLDS AND PCPN CHANCES AS
TX SYS SHEARS OUT ACRS AREA THRU MID-WK.

WITH AREA BACK IN THE WARM SECTOR TDY...LIKE THE WAY GUID TEMPS HAVE
COME BACK UP.  WITH HOW FAST TEMPS WARMED YSTDY...AND WITH SIMILAR
CONDS TDY WILL GO ALONG OR MAYBE EVEN A SNIFF ABV SOME AREAS.  IF ETA
800MB TEMPS PAN OUT...SOME MID 90S QUITE POSSIBLE OVR NW MO.

.EAX...NONE.

WELVAERT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 8:25 AM CDT	Flash Flood Warning	EAX	Chariton, Howard, Randolph	3 hr
Jun 22, 9:51 AM CDT	Flash Flood Warning	EAX	Saline	3 hr

Nearby

Flash Flood Warnings in Missouri, 1997 Every flash flood warning in 1997

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.