Alert archive / Missouri / Tornado Warnings in 1990

Tornado Warning 6, NWS Kansas City, MO

May 15, 1990Callaway County, Missouri

NWS Kansas City, MO issued this tornado warning at May 15, 1990, 1:58 PM CDT for Callaway County, Missouri. It was in force for 32 min.

The area

The counties it named.

The facts

Issued: May 15, 1990, 1:58 PM CDT (18:58 UTC)
Expired: May 15, 1990, 2:30 PM CDT
In force: 32 min
Issued by: NWS Kansas City, MO
Area: Whole counties

County Callaway County, MO

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Springfield, MO (KUMN), launched 12:00Z, 7.0 hours before the alert went out and 271 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: 1151 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 613 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 258 m²/s²
0-3 km storm-relative helicity: 323 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCOU 151858
TORCOU
MOC027-151930-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE COLUMBIA MO
158 PM CDT TUE MAY 15 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 230 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE CENTRAL PART OF MISSOURI
      CALLAWAY

AT 145 PM A TORNADO WAS REPORTED OVER WESTERN CALLAWAY COUNTY ABOUT
10 MILES EAST OF COLUMBIA.  IF YOU ARE IN THE FULTON OR KINGDOM
CITY AREAS TAKE COVER NOW.  THE TORNADO WILL MOVE ALONG OR JUST
SOUTH OF INTERSTATE 70...TO THE EAST AROUND 40 MILES AN HOUR.

NEVER TRY TO OUTRUN A TORNADO IN YOUR CAR.  GET OUT AND TAKE COVER
IN A DITCH OR LOW SPOT AND COVER YOUR HEAD.

THIS IS A DANGEROUS STORM.  PERSONS IN MOBILE HOMES SHOULD TAKE COVER
IN A NEARBY BUILDING OR GET INTO A DITCH OR CULVERT AWAY FROM  FLYING
DEBRIS AND COVER YOUR HEAD.  IN A HOUSE...TAKE SHELTER IN AN INTERIOR
ROOM ON THE LOWEST FLOOR AND AWAY FROM WINDOWS.

 GOEBEL

The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 10:29 PM CDT	Severe Thunderstorm Warning	EAX	St. Clair	31 min
May 15, 6:30 AM CDT	Severe Thunderstorm Warning	EAX	Jackson	30 min
May 15, 10:18 AM CDT	Flash Flood Warning	EAX	Cole, Moniteau, Morgan	2 hr
May 15, 11:07 AM CDT	Flash Flood Warning	EAX	Clay, Jackson	3 hr
May 15, 11:07 AM CDT	Flash Flood Warning	EAX	Platte	3 hr
May 15, 12:36 PM CDT	Severe Thunderstorm Warning	EAX	Cooper	69 min
May 15, 12:36 PM CDT	Severe Thunderstorm Warning	EAX	Hickory	69 min
May 15, 12:43 PM CDT	Severe Thunderstorm Warning	EAX	Cooper, Howard	62 min
May 15, 1:13 PM CDT	Flash Flood Warning	EAX	Cooper, Howard, Saline	3 hr
May 15, 1:13 PM CDT	Flash Flood Warning	EAX	Pettis	3 hr
May 15, 1:27 PM CDT	Severe Thunderstorm Warning	EAX	Boone, Moniteau	33 min
May 15, 2:46 PM CDT	Flash Flood Warning	EAX	Boone, Moniteau	3 hr
May 15, 2:46 PM CDT	Flash Flood Warning	EAX	Audrain, Callaway	3 hr
May 15, 4:17 PM CDT	Severe Thunderstorm Warning	EAX	Gasconade, Montgomery	28 min
May 15, 5:06 PM CDT	Severe Thunderstorm Warning	EAX	Gasconade	39 min

Nearby

Tornado Warnings in Missouri, 1990 Every tornado warning in 1990 Tornadoes in 1990

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.