Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 13, NWS St. Louis, MO

March 27, 1998Saint Charles County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Mar 27, 1998, 5:26 PM CST for Saint Charles 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: Mar 27, 1998, 5:26 PM CST (23:26 UTC)
Expired: Mar 27, 1998, 6:15 PM CST
In force: 49 min
Issued by: NWS St. Louis, MO
Area: Whole counties

County Saint Charles County, MO

The radar

The St Louis radar (KLSX), 9 km from the middle of the area, began a volume at 23:25 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.

Issued	Product	Office	Lasted
Mar 27, 4:30 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.4 hours before the alert went out and 234 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 935 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 308 m²/s²
0-3 km storm-relative helicity: 330 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.

204 
WUUS1 KSTL 272331
SVRSTL
MOC183-189-510-280015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION TO AREAS OF WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
526 PM CST FRI MAR 27 1998

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  615 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN EAST CENTRAL MISSOURI

   ...EASTERN ST. CHARLES COUNTY...ALL OF ST. LOUIS COUNTY

  AND THE INDEPENDENT CITY OF

   ...ST. LOUIS CITY

AT 525 PM...A LINE OF SEVERE THUNDERSTORMS EXTENDED FROM NEAR THE
MISSISSIPPI NEAR KAMPSVILLE...THROUGH ST PETERS...TO NEAR PACIFIC.

THE LINE CONTINUED TO RACE EAST AT 50 PM.  WINDS OF 60 MPH CAN BE
EXPECTED IN THE CITY OF ST LOUIS FROM THIS LINE OF STORMS.

SIGNIFICANT WIND DAMAGE WAS REPORTED WITH THIS LINE AS IT PASSED THROUGH
LINCOLN COUNTY.

THIS STORM HAS A HISTORY OF DAMAGING WINDS. SEEK INSIDE SHELTER
NOW

REMEMBER...A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.
IF OUTDOORS...SEEK INSIDE SHELTER IMMEDIATELY. STAY AWAY FROM
WINDOWS.

TRUETT/RP


&

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 27, 3:47 PM CST	Severe Thunderstorm Warning	LSX	Boone, Callaway, Cole	43 min
Mar 27, 3:47 PM CST	Severe Thunderstorm Warning	LSX	Osage	43 min
Mar 27, 4:02 PM CST	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Washington	58 min
Mar 27, 4:02 PM CST	Severe Thunderstorm Warning	LSX	Iron, Reynolds	58 min
Mar 27, 4:10 PM CST	Severe Thunderstorm Warning	LSX	Montgomery, Warren	50 min
Mar 27, 4:40 PM CST	Severe Thunderstorm Warning	LSX	Franklin, Jefferson, Saint Charles, Saint Louis	50 min
Mar 27, 4:40 PM CST	Severe Thunderstorm Warning	LSX	Lincoln	50 min
Mar 27, 4:40 PM CST	Severe Thunderstorm Warning	LSX	City of Saint Louis	50 min
Mar 27, 4:53 PM CST	Severe Thunderstorm Warning	LSX	Pike	37 min
Mar 27, 4:57 PM CST	Severe Thunderstorm Warning	LSX	Iron, Reynolds, Washington	48 min
Mar 27, 5:26 PM CST	Severe Thunderstorm Warning	LSX	Saint Louis, City of Saint Louis	49 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1998 Every 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.