Alert archive / Missouri / Tornado Warnings in 1998

Tornado Warning 10, NWS Kansas City, MO

June 11, 1998Nodaway County, Missouri

NWS Kansas City, MO issued this tornado warning at Jun 11, 1998, 11:39 PM CDT for Nodaway County, Missouri. It was in force for 51 min. 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 11, 1998, 11:39 PM CDT (04:39 UTC)
Expired
Jun 12, 1998, 12:30 AM CDT
In force
51 min
Issued by
NWS Kansas City, MO
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Nodaway County, MO

The radar

The Omaha radar (KOAX), 146 km from the middle of the area, began a volume at 04:48 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

Omaha, NE (KOAX), launched 00:00Z, 4.7 hours before the alert went out and 146 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-pSkew-T log-p diagram, Omaha, NE at 00:00Z on 1998-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 477 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 1998-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
477 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
1339 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
23 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 120439 RRA
TORMCI
MOC147-120530-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY-PLEASANT HILL MO
1139 PM CDT THU JUN 11 1998

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
     NORTHERN NODAWAY COUNTY IN MISSOURI

* UNTIL 1230 AM CDT

* AT 1139 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A  
  SEVERE THUNDERSTORM WITH A POSSIBLE TORNADO 7 MILES NORTHWEST OF   
  ELMO...OR ABOUT 20 MILES NORTHEAST OF ROCKPORT...MOVING EAST       
  SOUTHEAST AT 35 MILES PER HOUR.

* THE TORNADO WILL BE...
     5 MILES NORTH OF ELMO AT 1140 PM CDT
     NEAR BRADDYVILLE AT 1145 PM CDT
     5 MILES SOUTHWEST OF HOPKINS AT 1205 AM CDT
     5 MILES EAST OF PICKERING AT 1220 AM CDT
     15 MILES EAST OF PICKERING AT 1235 AM CDT

IN ADDITION TO THE TORNADO THREAT...HAIL UP TO GOLFBALL SIZE AND 
DAMAGING WINDS MAY ACCOMPANY THIS STORM.

IF YOU ARE IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY IN
THE BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF THE BUILDING!

LAT...LON 4068 9511 4051 9526 4037 9462 4058 9464

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 12:24 AM CDTSevere Thunderstorm WarningEAXWorth51 min

Nearby

Tornado Warnings in Missouri, 1998Every tornado warning in 1998Tornadoes 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; radar from the NEXRAD Level II archive.