Alert archive / Missouri / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 96, NWS St. Louis, MO

May 8, 2003Audrain County, Boone County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 8, 2003, 10:51 PM CDT for Audrain County, Boone County, Missouri. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 8, 2003, 10:51 PM CDT (03:51 UTC)
Expired: May 8, 2003, 11:45 PM CDT
In force: 54 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Audrain County, MO, Boone County, MO

The radar

The Pleasant Hill radar (KEAX), 157 km from the middle of the area, began a volume at 03:50 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.

Issued	Product	Office	Lasted
May 8, 9:00 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 3.9 hours before the alert went out and 269 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: 1898 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 1059 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 226 m²/s²
0-3 km storm-relative helicity: 290 m²/s²
Significant tornado parameter: 3.2
Supercell composite: 17.3

Open this sounding in Storm Lab

The text

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

994 
WUUS53 KLSX 090351
SVRLSX
MOC007-019-090445-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1051 PM CDT THU MAY 8 2003

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN AUDRAIN COUNTY IN CENTRAL MISSOURI
  BOONE COUNTY IN CENTRAL MISSOURI

* UNTIL 1145 PM CDT

* AT 1051 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 13 MILES WEST OF MIDWAY...MOVING EAST AT 45
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  MIDWAY
  COLUMBIA
  HALLSVILLE
  MURRY
  CENTRALIA

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS...AND HAS DOWNED
NUMEROUS TREES AND POWER LINES. TAKE SHELTER IMMEDIATELY IN THE
INTERIOR PORTION OF A STURDY BUILDING. STAY AWAY FROM OUTSIDE WALLS
AND WINDOWS

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

LAT...LON 3904 9281 3887 9274 3885 9214 3936 9209
          3934 9231

$$

TRUETT

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 7:24 PM CDT	Severe Thunderstorm Warning	LSX	Knox	36 min
May 8, 7:48 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Monroe, Ralls	27 min
May 8, 8:21 PM CDT	Severe Thunderstorm Warning	LSX	Marion	39 min
May 8, 10:21 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln	39 min
May 8, 10:26 PM CDT	Severe Thunderstorm Warning	LSX	Monroe	49 min
May 8, 11:03 PM CDT	Tornado Warning	LSX	Audrain, Boone	42 min
May 8, 11:45 PM CDT	Severe Thunderstorm Warning	LSX	Audrain	30 min
May 9, 12:04 AM CDT	Severe Thunderstorm Warning	LSX	Pike, Ralls	41 min
May 9, 5:12 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Monroe, Ralls	48 min
May 9, 5:47 PM CDT	Severe Thunderstorm Warning	LSX	Pike, Ralls	43 min
May 9, 5:59 PM CDT	Severe Thunderstorm Warning	LSX	Boone	46 min
May 9, 6:05 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Monroe	40 min
May 9, 6:17 PM CDT	Tornado Warning	LSX	Pike	43 min
May 9, 6:18 PM CDT	Tornado Warning	LSX	Boone	42 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2003 Every severe thunderstorm warning in 2003

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.