Alert archive / Missouri / Tornado Warnings in 1998

Tornado Warning 56, NWS St. Louis, MO

June 10, 1998Franklin County, Missouri

NWS St. Louis, MO issued this tornado warning at Jun 10, 1998, 6:22 AM CDT for Franklin County, Missouri. It was in force for 63 min. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 10, 1998, 6:22 AM CDT (11:22 UTC)
Expired: Jun 10, 1998, 7:25 AM CDT
In force: 63 min
Issued by: NWS St. Louis, MO
Area: Whole counties

County Franklin County, MO

What was reported inside it

Time	Report	Where
Jun 10, 6:34 AM CDT	Hail 1.75	New Haven, MO
Jun 10, 6:45 AM CDT	Hail 2.75	Union, MO
Jun 10, 6:59 AM CDT	Hail 1	Washington, MO
Jun 10, 7:03 AM CDT	Hail 0.75	Washington, MO

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

Lincoln, IL (KILX), launched 00:00Z, 11.4 hours before the alert went out and 288 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: 587 J/kg
Mixed-layer CIN: -152 J/kg
Mixed-layer LCL: 1274 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

300 
WFUS1 KSTL 101124 RRA
TORSTL
MOC071-101225-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
622 AM CDT WED JUN 10 1998

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  FRANKLIN COUNTY IN EAST CENTRAL MISSOURI

* UNTIL 725 AM CDT

* AT 621 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A TORNADO 5 MILES NORTH OF DRAKE IN GASCONADE COUNTY... MOVING
  EAST AT 35 MPH.

* LOCATIONS IN THE PATH...
  JUST SOUTH OF NEW HAVEN AT 630 AM
  NEAR WASHINGTON AND UNION AT 650 AM

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER NOW A
BASEMENT OFFERS THE BEST PROTECTION. IF NOT AVAILABLE...MOVE TO
THE LOWEST FLOOR AND SEEK SHELTER IN A SMALL INTERIOR ROOM. STAY
AWAY FROM OUTSIDE WALLS AND WINDOWS. MOBILE HOMES SHOULD BE
ABANDONED IN FAVOR OF A MORE SUBSTANTIAL STRUCTURE. DO NOT TRY TO
OUTRUN A TORNADO IN A VEHICLE

PEDIGO

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 9, 7:19 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Reynolds	46 min
Jun 9, 7:53 PM CDT	Severe Thunderstorm Warning	LSX	Saint Francois	32 min
Jun 9, 8:07 PM CDT	Severe Thunderstorm Warning	LSX	Iron	33 min
Jun 9, 8:21 PM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve	49 min
Jun 10, 5:08 AM CDT	Severe Thunderstorm Warning	LSX	Boone	62 min
Jun 10, 5:21 AM CDT	Tornado Warning	LSX	Boone	49 min
Jun 10, 6:03 AM CDT	Tornado Warning	LSX	Gasconade, Montgomery, Osage	62 min

Nearby

Tornado Warnings in Missouri, 1998 Every tornado warning in 1998 Tornadoes 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.