Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 317, NWS St. Louis, MO

July 30, 1998Reynolds County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jul 30, 1998, 4:17 PM CDT for Reynolds County, Missouri. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 30, 1998, 4:17 PM CDT (21:17 UTC)
Expired
Jul 30, 1998, 5:05 PM CDT
In force
48 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Reynolds County, MO

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.3 hours before the alert went out and 256 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, Springfield, MO at 12:00Z on 1998-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 197 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, Springfield, MO at 12:00Z on 1998-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 132 square meters per square second.193958Sfc1 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
197 J/kg
Mixed-layer CIN
-179 J/kg
Mixed-layer LCL
1866 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
132 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

653 
WUUS1 KSTL 302118 RRA
SVRSTL
MOC179-302205-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
417 PM CDT THU JUL 30 1998

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  REYNOLDS COUNTY IN SOUTHEASTERN MISSOURI

* UNTIL 505 PM CDT

* AT 417 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES WEST OF CENTERVILLE... MOVING EAST AT
  20 MPH.

* LOCATIONS THAT WILL BE AFFECTED...
  LESTERVILLE
  CENTERVILLE

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND GUSTS IN EXCESS OF 60
MPH...DAMAGING HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. MOVE
TO AN INTERIOR ROOM ON THE LOWEST FLOOR OR YOUR HOME OR BUSINESS.
HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE
WATER COVERS THE ROAD.

FG/DF

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.

In the hours before

Special weather statement, Jul 30, 11:15 AM CDT, 5 hours 2 minutes before
ILZ058>060-064-065-069-070-074-079-095>102-MOZ009-010-018-019-026-
027-034>036-041-042-047>052-059>065-072>075-084-085-099-311100-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
1115 AM CDT THU JUL 30 1998

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER
SERVICE FORECAST OFFICE IN ST LOUIS.  AREAS INCLUDED ARE PORTIONS OF
NORTHEAST...CENTRAL...EAST CENTRAL AND SOUTHEAST MISSOURI AS WELL AS
WEST CENTRAL AND SOUTHWEST ILLINOIS.

THUNDERSTORMS ARE ENDING ACROSS EAST CENTRAL MISSOURI AND ILLINOIS
FOR THE TIME BEING. THEY WILL LIKELY REDEVELOP OVER SOUTHERN MISSOURI AND
ILLINOIS TONIGHT...HOWEVER THESE WILL CAUSE HEAVY RAINS...AND NOT SEVERE
WEATHER.

STORM SPOTTER ACTIVATION IS NOT ANTICIPATED.

PEDIGO
Special weather statement, Jul 30, 11:15 AM CDT, 5 hours 2 minutes before
ILZ058>060-064-065-069-070-074-079-095>102-MOZ009-010-018-019-026-
027-034>036-041-042-047>052-059>065-072>075-084-085-099-311100-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
1115 AM CDT THU JUL 30 1998

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER
SERVICE FORECAST OFFICE IN ST LOUIS.  AREAS INCLUDED ARE PORTIONS OF
NORTHEAST...CENTRAL...EAST CENTRAL AND SOUTHEAST MISSOURI AS WELL AS
WEST CENTRAL AND SOUTHWEST ILLINOIS.

THUNDERSTORMS ARE ENDING ACROSS EAST CENTRAL MISSOURI AND ILLINOIS
FOR THE TIME BEING. THEY WILL LIKELY REDEVELOP OVER SOUTHERN MISSOURI AND
ILLINOIS TONIGHT...HOWEVER THESE WILL CAUSE HEAVY RAINS...AND NOT SEVERE
WEATHER.

STORM SPOTTER ACTIVATION IS NOT ANTICIPATED.

PEDIGO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 6:19 AM CDTFlash Flood WarningLSXFranklin4 hr
Jul 30, 10:00 AM CDTFlash Flood WarningLSXSaint Louis, City of Saint Louis3 hr
Jul 30, 10:00 AM CDTFlash Flood WarningLSXJefferson3 hr
Jul 30, 10:19 AM CDTFlash Flood WarningLSXFranklin8 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 1998Every 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; the sounding from the Mesonet's radiosonde archive.