Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 143, NWS St. Louis, MO

May 22, 1998Pike County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 22, 1998, 2:48 AM CDT for Pike County, Missouri. It was in force for 62 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
May 22, 1998, 2:48 AM CDT (07:48 UTC)
Expired
May 22, 1998, 3:50 AM CDT
In force
62 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Pike County, MO

The radar

The St Louis radar (KLSX), 83 km from the middle of the area, began a volume at 07:50 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 22, 2:00 AM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 7.8 hours before the alert went out and 237 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, Lincoln, IL at 00:00Z on 1998-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Lincoln, IL at 00:00Z on 1998-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1615 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
137 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.

186 
WUUS1 KSTL 220749 RRA
SVRSTL
MOC163-220850-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
248 AM CDT FRI MAY 22 1998

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PIKE COUNTY MISSOURI IN NORTHEASTERN MISSOURI

* UNTIL 350 AM CDT

* AT 246 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM PAYSON TO NEW LONDON TO MARK
  TWAIN LAKE... MOVING SOUTHEAST AT 35 MPH.

* LOCATIONS THAT WILL BE AFFECTED...
  LOUSIANA
  BOWLING GREEN
  CLARKSVILLE

THIS STORM HAS A HISTORY OF DAMAGING WINDS. MOVE QUICKLY TO A
STURDY BUILDING AND STAY AWAY FROM DOORS AND WINDOWS.

DM/RP

The office that day

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

IssuedProductOfficeCountiesLasted
May 21, 7:12 PM CDTSevere Thunderstorm WarningLSXMadison48 min
May 22, 12:40 AM CDTSevere Thunderstorm WarningLSXScotland60 min
May 22, 1:04 AM CDTSevere Thunderstorm WarningLSXKnox61 min
May 22, 1:20 AM CDTSevere Thunderstorm WarningLSXLincoln65 min
May 22, 1:27 AM CDTSevere Thunderstorm WarningLSXClark, Lewis63 min
May 22, 1:52 AM CDTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis63 min
May 22, 1:57 AM CDTSevere Thunderstorm WarningLSXMarion, Shelby63 min
May 22, 2:34 AM CDTSevere Thunderstorm WarningLSXRalls61 min
May 22, 5:01 PM CDTSevere Thunderstorm WarningLSXOsage49 min
May 22, 5:25 PM CDTSevere Thunderstorm WarningLSXGasconade45 min
May 22, 5:55 PM CDTSevere Thunderstorm WarningLSXCrawford50 min

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; radar from the NEXRAD Level II archive.