Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 199, NWS Kansas City, MO

June 29, 1998Jackson County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Jun 29, 1998, 7:40 PM CDT for Jackson County, Missouri. It was in force for 60 min. 1 report 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 29, 1998, 7:40 PM CDT (00:40 UTC)
Expired: Jun 29, 1998, 8:40 PM CDT
In force: 60 min
Issued by: NWS Kansas City, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Jackson County, MO

What was reported inside it

Time	Report	Where	Remark
Jun 29, 8:30 PM CDT	Thunderstorm Wind 55	Kansas City, MO	Severe thunderstorm winds damaged a section of the roof at the Liberty Hall Museum in Kansas City. In Blue Springs, the police department reported several downed trees as a result of thunderstorm winds. The downed trees were reported at the intersection of 1

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 29, 7:15 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 0.7 hours before the alert went out and 106 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: 2102 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 2166 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 150 m²/s²
0-3 km storm-relative helicity: 236 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 20.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSTL 300042 RRA
SVRMCI
MOC095-300145-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY-PLEASANT HILL MO
740 PM CDT MON JUN 29 1998

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
     JACKSON COUNTY IN MISSOURI

* UNTIL 840 PM CDT

* AT 740 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED...A
  SEVERE THUNDERSTORM 8 MILES NORTHWEST OF KANSAS CITY...MOVING
  SOUTHEAST AT 35 MILES PER HOUR.

* THE SEVERE THUNDERSTORM WILL BE...
     OVER KANSAS CITY AT 745 PM CDT
     NEAR RAYTOWN AT 805 PM CDT
     NEAR LAKE LOTAWANA AT 820 PM CDT
     NEAR LONE JACK AT 835 PM CDT

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS AROUND 70 MPH 
IN PLATTE AND CLAY COUNTIES.

PEOPLE IN THE PATH OF THIS STORM...CAN EXPECT HAIL UP TO ONE INCH IN 
DIAMETER...AND WIND GUSTS UP TO 80 MPH. FOR YOUR SAFETY...MOVE 
INDOORS...AND STAY AWAY FROM WINDOWS.

LAT...LON 3914 9460 3886 9460 3885 9413 3915 9412

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 29, 3:15 PM CDT, 4 hours 25 minutes earlier.

Area forecast discussion, Jun 29, 3:15 PM CDT, 4 hours 25 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
315 PM CDT MON JUN 29 1998

LTL TIME FOR DISC AS SVR WX NEARS CWA. EXTREME NSTABILITY... STEEP
LAPSE RATES...CDFNT AND INCREASING MID LEVEL WNDS WILL PROVIDE FOR A
GOOD CHANCE OF SVR WX. WITH HI DWPTS AND CORRESPONDING HI PW AND LO
FFG VALUES...WL ISSUE FLASH FLOOD WATCH FOR TNGT FOR NRN 2/3RDS OF
CWA.

DRIER AND COOLER AIR TO ARRIVE LATE TNGT AND TUES WITH FWC GUID
GENERALLY FOLLOWED.IFT INTO 2ND PD FFA.

.EAX...
FLASH FLOOD WATCH
MO ZONES MOZ001>008-011>017-020>025-028>033-037>040-046
KS ZONES KSZ 102>105-025-

DB

In the hours before

Local storm report, Jun 29, 3:38 PM CDT, 4 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
338 PM CDT MON JUN 29 1998

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

0430 AM    ODESSA                    MO    WIND DAMAGE
06/29/98   LAFAYETTE                       4 INCH AND GREATER TREE
                                           LIMBS DOWN

0630 PM    FAYETTE                   MO    .88 INCH HAIL
06/28/98   HOWARD                          CIVIL DEFENSE
                                           COORDINATOR REPORTS
                                           SEVERAL LOCATIONS SOUTH
                                           OF FAYETTE ALSO
                                           REPORTED GOLF BALL SIZE
                                           HAIL.

1054 PM    TURNEY                    MO    WIND DAMAGE
06/28/98   CLINTON                         TREES DOWN, BRICK
                                           CHIMNEY BLOWN DOWN,
                                           WINDOWS BROKEN OUT.

1115 PM    5 S PRINCETON             MO    .75 INCH HAIL
06/28/98   MERCER

1115 PM    5 S PRINCETON             MO    WIND DAMAGE
06/28/98   MERCER                          4 INCH TREE LIMBS DOWN

Local storm report, Jun 29, 3:38 PM CDT, 4 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
338 PM CDT MON JUN 29 1998

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

0430 AM    ODESSA                    MO    WIND DAMAGE
06/29/98   LAFAYETTE                       4 INCH AND GREATER TREE
                                           LIMBS DOWN

0630 PM    FAYETTE                   MO    .88 INCH HAIL
06/28/98   HOWARD                          CIVIL DEFENSE
                                           COORDINATOR REPORTS
                                           SEVERAL LOCATIONS SOUTH
                                           OF FAYETTE ALSO
                                           REPORTED GOLF BALL SIZE
                                           HAIL.

1054 PM    TURNEY                    MO    WIND DAMAGE
06/28/98   CLINTON                         TREES DOWN, BRICK
                                           CHIMNEY BLOWN DOWN,
                                           WINDOWS BROKEN OUT.

1115 PM    5 S PRINCETON             MO    .75 INCH HAIL
06/28/98   MERCER

1115 PM    5 S PRINCETON             MO    WIND DAMAGE
06/28/98   MERCER                          4 INCH TREE LIMBS DOWN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 7:00 PM CDT	Tornado Warning	EAX	Platte	60 min
Jun 29, 7:03 PM CDT	Tornado Warning	EAX	Adair	27 min
Jun 29, 7:28 PM CDT	Severe Thunderstorm Warning	EAX	Clay	47 min
Jun 29, 8:28 PM CDT	Severe Thunderstorm Warning	EAX	Johnson	62 min
Jun 29, 8:30 PM CDT	Severe Thunderstorm Warning	EAX	Macon	30 min
Jun 29, 8:35 PM CDT	Severe Thunderstorm Warning	EAX	Cass	40 min
Jun 29, 9:06 PM CDT	Severe Thunderstorm Warning	EAX	Bates	54 min
Jun 29, 9:52 PM CDT	Flash Flood Warning	EAX	Macon, Randolph	3 hr
Jun 29, 10:39 PM CDT	Severe Thunderstorm Warning	EAX	Bates	51 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.