Alert archive / Kansas / Flash Flood Warnings in 1998

Flash Flood Warning 10, NWS Kansas City, MO

June 22, 1998Linn County, Kansas

NWS Kansas City, MO issued this flash flood warning at Jun 22, 1998, 6:07 AM CDT for Linn County, Kansas. 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: Jun 22, 1998, 6:07 AM CDT (11:07 UTC)
Expired: Jun 22, 1998, 9:00 AM CDT
In force: 3 hr
Issued by: NWS Kansas City, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Linn County, KS

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 11.1 hours before the alert went out and 114 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: 2050 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 973 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 121 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMCI 221107
FFWMCI
KSC107-221400-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KANSAS CITY-PLEASANT HILL MO
607 AM CDT MON JUN 22 1998

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* FLASH FLOOD WARNING FOR...
     LINN COUNTY IN KANSAS

* UNTIL 900 AM CDT

* DOPPLER RADAR ESTIMATES 6 TO 7 INCHES OF RAIN HAVE FALLEN OVER     
  SOUTHWESTERN LINN COUNTY KANSAS...WITH 4 TO 6 INCHES OF RAIN OVER  
  THE REMAINDER OF SOUTHERN LINN COUNTY. 

* THUNDERSTORMS PRODUCING EXCESSIVE RAINFALL WILL MOVE OVER LINN     
  COUNTY THIS MORNING. THE GROUND IS ALREADY SATURATED FROM THE      
  EARLIER RAIN...AND FLASH FLOODING WILL LIKELY OCCUR.
 

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

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.


LAT...LON 3803 9506 3805 9492 3804 9463 3839 9462
          3839 9506

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 Jun 22, 3:00 AM CDT, 3 hours 7 minutes earlier.

Area forecast discussion, Jun 22, 3:00 AM CDT, 3 hours 7 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
300 AM CDT MON JUN 22 1998

THINK THIS IS THE 4TH NIGHT IN A ROW FOR MCS MOVING THRU AREA.
FIRST CONCERN IS NEED FOR FF WATCH.  CURRENT TSRA ACTIVITY ALREADY
HAS GENERATED SEVERAL AREAS OF 1.  NEXT BATCH OF TSRA OVER CNTRL KS
APPEARS TO BE HEADED STRAIGHT FOR CWA.  LOOKING AT 850 MB WINDS OFF
PROFILERS AND FORECAST OF SUCH FROM ETA WOULD SUGGEST ACTIVITY
SHOULD CONTINUE EASTWARD AND PERSIST AT LEAST THROUGH LATE MORNING.
700 MB WAA PATTERN THROUGH 00Z TONIGHT LOOKS SUSPICIOUSLY SIMILAR TO
OTHER DAY WHEN MCS WOULDNT QUIT OVER CENTRAL MO.  SO...GIVEN
ANTECEDENT RAINFALL AND MOST OF CWA WITH FF GUIDANCE VALUES UNDER AN
INCH (MANY AROUND 0.5)...WILL HAVE TO GO WITH FFA.  NRN MO LOOKS
LIKE WILL ESCAPE THE HEAVIEST RAIN AND SINCE THIS MATCHES THE
CURRENT SVR TSTM WATCH WELL WILL CARRY FFA IN SAME AREA.  WILL CARRY
WATCH ALL DAY LONG...GIVEN POSSIBILITY OF CONTINUED REDEVELOPMENT.
DAY SHIFT MAY HAVE TO CANCEL EARLY IF THIS SCENARIO DOESNT PAN OUT.

ETA SHOWS SFC BOUNDARY MOVING NWD BY TONIGHT.  GOOD UPSLOPE ON HI
PLAINS SHD DEVELOP ANOTHER MCS TONIGHT...WHICH SHOULD FOLLOW
BOUNDARY INTO NRN MO TONIGHT.  GOOD 50+ KT LLJ TO FEED STORMS SO MAY
BE ONE MORE BUSY NIGHT.  SURPRISED TO SEE NO SLGT RISK THERE.  WILL
CARRY HIEST POPS TONIGHT UP THERE...LESSER DOWN SOUTH.

WILL CONTINUE PREVIOUS SHIFTS CHC POPS FOR TUE GIVEN POSSIBILITY OF
MON NIGHTS MCS LINGERING INTO DAYTIME...BUT AFTER THAT IT APPEARS
CAP SETS IN.

WILL UNDERCUT TEMP GUIDANCE TODAY...AFTER THAT GENERALLY WILL FOLLOW.

.EAX...
MO...FLASH FLOOD WATCH TODAY MOZ012>014-020>025-028>033-037-040
     043>046-053>054
KS...FLASH FLOOD WATCH TODAY KSZ025-057-060-102>105

JM

In the hours before

Local storm report, Jun 22, 3:52 AM CDT, 2 hours 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
352 AM CDT MON JUN 22 1998

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

0330 AM    MARSHALL                  MO    WIND DAMAGE
06/22/98   SALINE                          NUMEROUS REPORTS OF
                                           TREES AND POWER LINES
                                           DOWN.  ESTIMATED 60 MPH
                                           GUSTS BY MARSHALL PD.

HUDSON

Local storm report, Jun 22, 3:52 AM CDT, 2 hours 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
352 AM CDT MON JUN 22 1998

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

0330 AM    MARSHALL                  MO    WIND DAMAGE
06/22/98   SALINE                          NUMEROUS REPORTS OF
                                           TREES AND POWER LINES
                                           DOWN.  ESTIMATED 60 MPH
                                           GUSTS BY MARSHALL PD.

HUDSON

Local storm report, Jun 22, 5:59 AM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
559 AM CDT MON JUN 22 1998

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

0551 AM    (IXD)JHNSN CO INDSL OLATHEKS    64 MPH TSTM GUST
06/22/98   JOHNSON

Local storm report, Jun 22, 5:59 AM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
559 AM CDT MON JUN 22 1998

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

0551 AM    (IXD)JHNSN CO INDSL OLATHEKS    64 MPH TSTM GUST
06/22/98   JOHNSON

Special weather statement, Jun 22, 6:00 AM CDT, 7 minutes before

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-231200-

HAZARDOUS WEATHER OUTLOOK...RETRANSMITTED
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
600 AM CDT MON JUN 22 1998

...FLASH FLOOD WATCH IN EFFECT TODAY FOR ALL AREAS EXCEPT EXTREME
NORTHERN MISSOURI...
...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 7 AM FOR ALL AREAS
EXCEPT EXTREME NORTHERN MISSOURI...

FORECAST...ANOTHER BAND OF THUNDERSTORMS MOVING INTO THE WESTERN
PORTIONS OF THE OUTLOOK AREA WILL PRODUCE DAMAGING WINDS AS THEY
TRACK EASTWARD THROUGH THE AREA THIS MORNING.  THE AREA MOST LIKELY
TO SEE THE STRONG WINDS WILL BE ALONG AND SOUTH OF INTERSTATE
70...PARTICULARLY OVER EAST-CENTRAL KANSAS AND WEST-CENTRAL
MISSOURI.  ONCE THIS BAND MOVES THROUGH THE SEVERE WEATHER THREAT
SHOULD DIMINISH UNTIL TONIGHT.

AN EQUAL...IF NOT GREATER...THREAT THIS MORNING IS THE THREAT OF
FLASH FLOODING.  RADAR INDICATES ONE TO THREE INCHES OF RAIN HAVE
FALLEN MAINLY SOUTH OF INTERSTATE 70 OVERNIGHT.  LOCAL AMOUNTS UP TO
FIVE INCHES HAVE FALLEN IN LINN COUNTY KANSAS.  ANOTHER ONE TO TWO
INCHES OF RAIN WILL FALL ACROSS MUCH OF THE AREA BEFORE THE RAIN
ENDS BY AFTERNOON.  LOCAL FLASH FLOODING AND RIVER FLOODING IS A
DISTINCT POSSIBILITY THIS MORNING.

FINALLY...ANOTHER CLUSTER OF THUNDERSTORMS SHOULD MOVE INTO THE AREA
LATE TONIGHT.  THIS ROUND OF THUNDERSTORMS WILL BRING A RENEWED
THREAT OF LARGE HAIL...STRONG WINDS AND CERTAINLY FLASH FLOODING.

WITH THE SEVERE WEATHER THREAT LIKELY DIMINISHING BY LATE
MORNING...SPOTTER ACTIVATION WILL PROBABLY NOT BE NEEDED TODAY.
HOWEVER...ANY REPORTS OF SEVERE WEATHER OR FLOODING WOULD BE
APPRECIATED.  SPOTTER ACTIVATION MAY BE NEEDED LATE TONIGHT WITH THE
NEXT ROUND OF ACTIVITY.

DISCUSSION...A WEST TO EAST ORIENTED FRONTAL BOUNDARY IS EXPECTED TO
REMAIN NEARBY THROUGH TONIGHT.  WINDS ABOVE THE GROUND ARE PUSHING
MOIST AND UNSTABLE AIR OVER THE TOP OF THIS BOUNDARY RESULTING IN
CONTINUED LIFT ACROSS THE AREA.  BY MIDDAY...THE WINDS ABOVE GROUND
WILL TURN MORE WESTERLY WHICH SHOULD ALLOW THE CURRENT ACTIVITY TO
DIMINISH.  THE ATMOSPHERE WILL LIKELY BE TOO STABLE FOR ADDITIONAL
DEVELOPMENT THIS AFTERNOON AND EVENING.  HOWEVER...WINDS ABOVE THE
SURFACE WILL INCREASE AND TURN BACK TO THE SOUTH ONCE AGAIN
TONIGHT.  THESE WINDS SHOULD SUPPLY MOIST AND UNSTABLE AIR TO THE
NEXT COMPLEX OF THUNDERSTORMS THAT WILL ROLL IN FROM THE HIGH PLAINS
LATE TONIGHT.  THE ATMOSPHERE SHOULD BECOME UNSTABLE ENOUGH BY LATE
TONIGHT FOR A FEW STORMS TO REACH SEVERE LEVELS.

JM

Special weather statement, Jun 22, 6:00 AM CDT, 7 minutes before

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-231200-

HAZARDOUS WEATHER OUTLOOK...RETRANSMITTED
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
600 AM CDT MON JUN 22 1998

...FLASH FLOOD WATCH IN EFFECT TODAY FOR ALL AREAS EXCEPT EXTREME
NORTHERN MISSOURI...
...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 7 AM FOR ALL AREAS
EXCEPT EXTREME NORTHERN MISSOURI...

FORECAST...ANOTHER BAND OF THUNDERSTORMS MOVING INTO THE WESTERN
PORTIONS OF THE OUTLOOK AREA WILL PRODUCE DAMAGING WINDS AS THEY
TRACK EASTWARD THROUGH THE AREA THIS MORNING.  THE AREA MOST LIKELY
TO SEE THE STRONG WINDS WILL BE ALONG AND SOUTH OF INTERSTATE
70...PARTICULARLY OVER EAST-CENTRAL KANSAS AND WEST-CENTRAL
MISSOURI.  ONCE THIS BAND MOVES THROUGH THE SEVERE WEATHER THREAT
SHOULD DIMINISH UNTIL TONIGHT.

AN EQUAL...IF NOT GREATER...THREAT THIS MORNING IS THE THREAT OF
FLASH FLOODING.  RADAR INDICATES ONE TO THREE INCHES OF RAIN HAVE
FALLEN MAINLY SOUTH OF INTERSTATE 70 OVERNIGHT.  LOCAL AMOUNTS UP TO
FIVE INCHES HAVE FALLEN IN LINN COUNTY KANSAS.  ANOTHER ONE TO TWO
INCHES OF RAIN WILL FALL ACROSS MUCH OF THE AREA BEFORE THE RAIN
ENDS BY AFTERNOON.  LOCAL FLASH FLOODING AND RIVER FLOODING IS A
DISTINCT POSSIBILITY THIS MORNING.

FINALLY...ANOTHER CLUSTER OF THUNDERSTORMS SHOULD MOVE INTO THE AREA
LATE TONIGHT.  THIS ROUND OF THUNDERSTORMS WILL BRING A RENEWED
THREAT OF LARGE HAIL...STRONG WINDS AND CERTAINLY FLASH FLOODING.

WITH THE SEVERE WEATHER THREAT LIKELY DIMINISHING BY LATE
MORNING...SPOTTER ACTIVATION WILL PROBABLY NOT BE NEEDED TODAY.
HOWEVER...ANY REPORTS OF SEVERE WEATHER OR FLOODING WOULD BE
APPRECIATED.  SPOTTER ACTIVATION MAY BE NEEDED LATE TONIGHT WITH THE
NEXT ROUND OF ACTIVITY.

DISCUSSION...A WEST TO EAST ORIENTED FRONTAL BOUNDARY IS EXPECTED TO
REMAIN NEARBY THROUGH TONIGHT.  WINDS ABOVE THE GROUND ARE PUSHING
MOIST AND UNSTABLE AIR OVER THE TOP OF THIS BOUNDARY RESULTING IN
CONTINUED LIFT ACROSS THE AREA.  BY MIDDAY...THE WINDS ABOVE GROUND
WILL TURN MORE WESTERLY WHICH SHOULD ALLOW THE CURRENT ACTIVITY TO
DIMINISH.  THE ATMOSPHERE WILL LIKELY BE TOO STABLE FOR ADDITIONAL
DEVELOPMENT THIS AFTERNOON AND EVENING.  HOWEVER...WINDS ABOVE THE
SURFACE WILL INCREASE AND TURN BACK TO THE SOUTH ONCE AGAIN
TONIGHT.  THESE WINDS SHOULD SUPPLY MOIST AND UNSTABLE AIR TO THE
NEXT COMPLEX OF THUNDERSTORMS THAT WILL ROLL IN FROM THE HIGH PLAINS
LATE TONIGHT.  THE ATMOSPHERE SHOULD BECOME UNSTABLE ENOUGH BY LATE
TONIGHT FOR A FEW STORMS TO REACH SEVERE LEVELS.

JM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 1:07 AM CDT	Severe Thunderstorm Warning	EAX	Johnson, Miami	53 min
Jun 22, 1:16 AM CDT	Severe Thunderstorm Warning	EAX	Linn	59 min
Jun 22, 5:40 AM CDT	Severe Thunderstorm Warning	EAX	Johnson, Miami	50 min

Nearby

Flash Flood Warnings in Kansas, 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.