Alert archive / Missouri / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 104, NWS St. Louis, MO

June 1, 1999Iron County, Reynolds County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 1, 1999, 5:11 PM CDT for Iron County, Reynolds County, Missouri. It was in force for 49 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
Jun 1, 1999, 5:11 PM CDT (22:11 UTC)
Expired
Jun 1, 1999, 6:00 PM CDT
In force
49 min
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Iron County, MO, Reynolds County, MO

The radar

The St Louis radar (KLSX), 141 km from the middle of the area, began a volume at 22:11 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

Springfield, MO (KSGF), launched 12:00Z, 10.2 hours before the alert went out and 270 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 1999-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 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 1999-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 261 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
20 J/kg
Mixed-layer CIN
-321 J/kg
Mixed-layer LCL
1581 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
261 m²/s²
0-3 km storm-relative helicity
270 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.

165 
WUUS1 KSTL 012213 RRA
SVRSTL
MOC093-179-012300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
511 PM CDT TUE JUN 1 1999

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN IRON COUNTY IN SOUTHEASTERN MISSOURI
  EASTERN REYNOLDS COUNTY IN SOUTHEASTERN MISSOURI

* UNTIL 600 PM CDT

* AT 510 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 8 MILES SOUTH OF CENTERVILLE... MOVING
  NORTHEAST 35 MPH.

* LOCATIONS THAT WILL BE AFFECTED...
  ANNAPOLIS
  REDFORD
  LESTERVILLE



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.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING.

JPK/RP

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, Jun 1, 11:30 AM CDT, 5 hours 41 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>075-084-085-099-012300-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
1130 AM CDT TUE JUN 1 1999

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.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS SOUTH OF THE LINE FROM
AROUND ST LOUIS TO JUST SOUTH OF COLUMBIA MISSOURI FOR THIS AFTERNOON
AND TONIGHT.

EMERGENCY MANAGERS AND STORM SPOTTER GROUPS SHOULD BE PREPARED FOR
POSSIBLE SKYWARN ACTIVATION THIS AFTERNOON AND TONIGHT.
Special weather statement, Jun 1, 1:00 PM CDT, 4 hours 11 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>075-084-085-099-012300-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
100 PM CDT TUE JUN 1 1999

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.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE ENTIRE
WARNING AREA FOR THIS AFTERNOON AND TONIGHT.

EMERGENCY MANAGERS AND STORM SPOTTER GROUPS SHOULD BE PREPARED FOR
POSSIBLE SKYWARN ACTIVATION THIS AFTERNOON AND TONIGHT.@

VA
Special weather statement, Jun 1, 1:00 PM CDT, 4 hours 11 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>075-084-085-099-012300-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
100 PM CDT TUE JUN 1 1999

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.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE ENTIRE
WARNING AREA FOR THIS AFTERNOON AND TONIGHT.

EMERGENCY MANAGERS AND STORM SPOTTER GROUPS SHOULD BE PREPARED FOR
POSSIBLE SKYWARN ACTIVATION THIS AFTERNOON AND TONIGHT.@

VA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 3:17 PM CDTSevere Thunderstorm WarningLSXShelby48 min
Jun 1, 3:27 PM CDTSevere Thunderstorm WarningLSXLewis48 min
Jun 1, 3:37 PM CDTSevere Thunderstorm WarningLSXMonroe48 min
Jun 1, 3:44 PM CDTSevere Thunderstorm WarningLSXMarion51 min
Jun 1, 4:06 PM CDTSevere Thunderstorm WarningLSXShelby34 min
Jun 1, 4:12 PM CDTTornado WarningLSXCole48 min
Jun 1, 4:19 PM CDTSevere Thunderstorm WarningLSXRalls51 min
Jun 1, 4:24 PM CDTSevere Thunderstorm WarningLSXBoone, Callaway51 min
Jun 1, 4:33 PM CDTSevere Thunderstorm WarningLSXLewis47 min
Jun 1, 5:01 PM CDTSevere Thunderstorm WarningLSXCole, Osage49 min
Jun 1, 5:22 PM CDTSevere Thunderstorm WarningLSXMontgomery48 min
Jun 1, 5:48 PM CDTSevere Thunderstorm WarningLSXMadison47 min
Jun 1, 5:49 PM CDTTornado WarningLSXLincoln51 min
Jun 1, 6:34 PM CDTTornado WarningLSXCrawford51 min
Jun 1, 6:44 PM CDTSevere Thunderstorm WarningLSXFranklin51 min
Jun 1, 6:50 PM CDTTornado WarningLSXFranklin50 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1999Every severe thunderstorm warning in 1999

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.