Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 69, NWS Kansas City, MO

June 10, 1998Clinton County, DeKalb County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Jun 10, 1998, 12:02 PM CDT for Clinton County, DeKalb County, Missouri. It was in force for 43 min. 2 reports came from 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, with what was reported inside it.

The facts

Issued: Jun 10, 1998, 12:02 PM CDT (17:02 UTC)
Expired: Jun 10, 1998, 12:45 PM CDT
In force: 43 min
Issued by: NWS Kansas City, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Clinton County, MO, DeKalb County, MO

The radar

The Pleasant Hill radar (KEAX), 108 km from the middle of the area, began a volume at 17:01 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.

What was reported inside it

Time	Report	Where	Remark
Jun 10, 12:11 PM CDT	Hail 1.75	Stewartsville, MO	A Missouri state trooper reported golfball-size hail during a severe thunderstorm in Stewartsville.
Jun 10, 12:30 PM CDT	Hail 0.88	Kidder, MO	Nickel-size hail was reported by the public 12 miles southwest of Kidder during a severe thunderstorm.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 5.0 hours before the alert went out and 133 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: 186 J/kg
Mixed-layer CIN: -312 J/kg
Mixed-layer LCL: 615 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 241 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.3

Open this sounding in Storm Lab

The text

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

222 
WUUS1 KMCI 101701 RRA
SVRMCI
MOC049-063-101745-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY-PLEASANT HILL MO
1202 PM CDT WED JUN 10 1998

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

   * SEVERE THUNDERSTORM WARNING FOR...
     DEKALB COUNTY IN MISSOURI
     NORTHERN CLINTON COUNTY IN MISSOURI
  
   * UNTIL 1245 PM CDT

   * AT 1202 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR 
     INDICATED A SEVERE THUNDERSTORM 10 MILES EAST OF ST JOSEPH 
     NEAR SAN ANTONIO MOVING EAST AT 40 MILES PER HOUR. GOLFBALL 
     SIZE HAIL FELL NEAR EASTON AT NOON. 

   * SEVERE THUNDERSTORM WILL BE...
     NEAR STEWARTSVILLE BY 1210 PM
      NEAR OSBORN BY 1220 PM 

LARGE HAIL UP TO THE SIZE OF GOLFBALLS AND DAMAGING WINDS ARE 
POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH OF 
THE STORM...MOVE TO A SUBSTANTIAL SHELTER.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN PLEASANT HILL.

BUNTING

&

LAT...LON 3981 9461 3968 9461 3964 9423 3993 9423

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 10, 3:20 AM CDT, 8 hours 42 minutes earlier.

Area forecast discussion, Jun 10, 3:20 AM CDT, 8 hours 42 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
320 AM CDT WED JUN 10 1998

FORECAST PROBLEMS INCLUDE PRECIPITATION CHANCES AND TEMPERATURES
THROUGH FORECAST CYCLE. TSRA/SHRA ACTIVITY DEVELOPING OVER SOUTHERN
PORTIONS OF FA...ASSOCIATED WITH NORTHWARD MOVING SURFACE WARM FRONT.
H8 PROFILER PLOT ALSO SHOWING 35-40KT LLJ OVER EASTERN KS/EASTERN OK
HELPING TO PROVIDE LIFT. WOULD EXPECT THIS PRECIPITATION TO BE
DIURNALLY DRIVEN...AS INTENSITY OF LLJ BEGINS TO DECREASE AFTER
SUNRISE. HOWEVER...WITH BOUNDARY IN AREA...AND PLENTY OF SURFACE
HEATING EXPECTED TODAY...WOULD NOT BE SURPRISED TO SEE SOME SCT
ACTIVITY LATER THIS AFTERNOON. AS A RESULT...WILL NOT PUT TIME
QUALIFIER ON PCPN CHANCES TODAY.

BETTER CHANCE FOR MORE WIDESPREAD PRECIPITATION COMES TONIGHT...AS
MODELS SHOW H5 WAVE ROTATING INTO CENTRAL PLAINS. IN RESPONSE TO
THIS...MODELS DEVELOP STRONGER LLJ TONIGHT. AGREE WITH NCEP QPF
DISCUSSION...PLACING HEAVY RAIN THREAT OVER CENTRAL MISSOURI IN LINE
WITH EXPECTED TRAJECTORY OF LLJ.

IN GENERAL...WILL GO WITH FWC GUIDANCE...WHICH IS A BIT WARMER THAN
FAN.

MJM

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

In the hours before

Local storm report, Jun 10, 11:52 AM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1152 AM CDT WED JUN 10 1998

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

1143 AM    1 E ST JOSEPH             MO    .75 INCH HAIL
06/10/98   BUCHANAN

Local storm report, Jun 10, 11:52 AM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1152 AM CDT WED JUN 10 1998

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

1143 AM    1 E ST JOSEPH             MO    .75 INCH HAIL
06/10/98   BUCHANAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 4:30 AM CDT	Severe Thunderstorm Warning	EAX	Cooper	45 min
Jun 10, 5:01 AM CDT	Severe Thunderstorm Warning	EAX	Howard	29 min
Jun 10, 11:45 AM CDT	Severe Thunderstorm Warning	EAX	Buchanan	45 min
Jun 10, 12:25 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell	50 min
Jun 10, 1:03 PM CDT	Severe Thunderstorm Warning	EAX	Livingston	42 min
Jun 10, 1:27 PM CDT	Severe Thunderstorm Warning	EAX	Linn	48 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1998 Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.