Alert archive / Missouri / Flash Flood Warnings in 1996

Flash Flood Warning 8, NWS Kansas City, MO

May 7, 1996Macon County, Missouri

NWS Kansas City, MO issued this flash flood warning at May 7, 1996, 2:45 AM CDT for Macon County, Missouri. It was in force for 2 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: May 7, 1996, 2:45 AM CDT (07:45 UTC)
Expired: May 7, 1996, 5:00 AM CDT
In force: 2 hr
Issued by: NWS Kansas City, MO
Area: Whole counties

County Macon County, MO

The radar

The Pleasant Hill radar (KEAX), 185 km from the middle of the area, began a volume at 07:44 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

Davenport, (KDVN), launched 00:00Z, 7.8 hours before the alert went out and 264 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1081 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 392 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 070745
FFWMCI
MOC121-071000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
245 AM CDT TUE MAY 7 1996

* FLASH FLOOD WARNING EXTENDED FOR
  MACON COUNTY - NORTH CENTRAL MISSOURI

* UNTIL 500 AM CDT
 
* SOME STREAMS AND RIVERS AFFECTED
    BRUSH CREEK
    MUSSELL FORK
    MIDDLE FORK
    EAST FORK

* CAUSE AND EFFECT
    THUNDERSTORMS WITH EXTREMELY HEAVY RAINFALL WILL CONTINUE OVER
    SOUTHERN MACON COUNTY THROUGH 330 AM. ADDITIONAL RAINFALL OF AT
    LEAST ONE-HALF INCH IS LIKELY. HIGHWAY 36 WEST AND EAST OF
    MACON IS CLOSED DUE TO HIGH WATER AND FLOODING WAS REPORTED ON
    HIGHWAY 36 NORTH OF MACON.

* FORECAST CONDITIONS
    SERIOUS FLOODING CONTINUES IN THE COUNTY...WITH THE CITY OF MACON
    ESPECIALLY HARD HIT. MANY ROADS ARE CLOSED IN MACON AND STREAMS AND
    CREEKS WILL RISE RAPIDLY AS THE ADDITIONAL RAINFALL FALLS ON
    SATURATED GROUNDS.

BE ESPECIALLY CAUTlIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGER OF FLOODING.

BUNTING/SMITH/VEENEMAN
 

&

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 May 6, 2:50 PM CDT, 11 hours 55 minutes earlier.

Area forecast discussion, May 6, 2:50 PM CDT, 11 hours 55 minutes before

NORTHWEST MISSOURI FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
250 PM CDT MON MAY 6 1996

CURRENT MCS EVENT SHOWING SIGNS OF WEAKENING ON SATELLITE AND
FINALLLY STARTING TO MOVE MORE RAPIDLY EASTWARD. SCTD RW/TRW STILL
IN ERN KS ARE NOT EXPECTED TO BECOME TOO STRONG AS THEY MOVE INTO
THE WORKED OVER ATMOSPHERE LEFT BEHIND BY MCS CHUCK. NEXT SHOW
SHOULD BE WITH MCS DEVELOPMENT OVERNIGHT. ONLY HAVE ETA AND AVN
GRIDDED DATA TO PERUSE. ETA SHOWS THETAE RIDGE HOLDING INTO SC
KS...WITH GOOD LOW LEVEL FLOW TO SET UP AS UPPER WAVE THAT
SATELLITE CURRENTLY SHOWS IN UTAH APPROACHES AREA. SFC BOUNDARY
REMAINS JUST TO SOUTH OF AREA AND H85 FRONT STAYS ACROSS CWA. MCS
SHOULD BRING MORE HEAVY RAIN TO MUCH OF THE CWA. ALREADY SATURATED
GROUND ACROSS SOUTHERN HALF OF CWA FOR LAST SEVERAL MCS EVENTS SET
STAGE FOR FLASH FLOODING SO WATCH IS WARRANTED.

EXPECT MCS (D...) TO STILL BE AFFECTING AREA IN THE MORNING...THEN
WORKED OVER ATMOSPHERE WILL PROBABLY NOT RECOVER TO SUPPORT MUCH
ACTIVITY TUESDAY AFTERNOON...SO WILL HAVE TO WAIT UNTIL TUESDAY
NIGHT WHEN EVEN BETTER MCS (E...) SCENARIO SETS UP FOR CWA WITH H85
WINDS PROGGED AT 50KTS INTO AREA BY WEDNESDAY MORNING.

FWC GUIDANCE STARTING OFF TOO WARM WITH TEMPS SO WILL GO COLDER FOR
LOWS TONIGHT. MCS ALSO WILL AFFECT HIGHS ON TUESDAY...SO THINK FWC
TOO WARM AGAIN SO WILL STAY COOLER.

MCI TT 51/68 76

PC

In the hours before

Special weather statement, May 6, 11:29 PM CDT, 3 hours 16 minutes before

KSZ060-070505-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
1129 PM CDT MON MAY 6 1996

...SEVERE THUNDERSTORM WARNING FOR LINN COUNTY HAS EXPIRED...

THE SEVERE THUNDERSTORM WARNING THAT WAS IN EFFECT FOR LINN COUNTY
UNTIL 1130 PM HAS BEEN ALLOWED TO EXPIRE.  THE SEVERE THUNDERSTORM HAS
WEAKENED BELOW SEVERE LIMITS AND WAS LOCATED JUST SOUTH OF LA CYGNE.
OTHER STRONG STORMS WERE IN THE VICINITY OF BLUE MOUND AND WERE MOVING
TO THE EAST-NORTHEAST AROUND 25 MPH.  THESE STORMS ARE BEING MONITORED
FOR POSSIBLE INTENSIFICATION.

BUNTING/MANION

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 9:24 PM CDT	Flash Flood Warning	EAX	Linn, Livingston	4 hr
May 6, 11:20 PM CDT	Flash Flood Warning	EAX	Macon	4 hr
May 7, 1:28 AM CDT	Flash Flood Warning	EAX	Linn, Livingston	3 hr
May 7, 8:43 AM CDT	Flash Flood Warning	EAX	Cooper	3 hr
May 7, 10:52 AM CDT	Flash Flood Warning	EAX	Pettis	4 hr
May 7, 11:33 AM CDT	Flash Flood Warning	EAX	Cooper, Howard	3 hr
May 7, 12:49 PM CDT	Flash Flood Warning	EAX	Randolph	3 hr

Nearby

Flash Flood Warnings in Missouri, 1996 Every flash flood warning in 1996

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.