Alert archive / Missouri / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 33, NWS St. Louis, MO

April 28, 2003Boone County, Moniteau County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Apr 28, 2003, 8:51 AM CDT for Boone County, Moniteau County, Missouri. It was in force for 39 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: Apr 28, 2003, 8:51 AM CDT (13:51 UTC)
Expired: Apr 28, 2003, 9:30 AM CDT
In force: 39 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Boone County, MO, Moniteau County, MO

The radar

The St Louis radar (KLSX), 153 km from the middle of the area, began a volume at 13:53 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, 1.9 hours before the alert went out and 266 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: 91 J/kg
Mixed-layer CIN: -341 J/kg
Mixed-layer LCL: 1785 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 208 m²/s²
0-3 km storm-relative helicity: 217 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.

802 
WUUS53 KLSX 281351
SVRLSX
MOC019-135-281430-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
851 AM CDT MON APR 28 2003

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BOONE COUNTY IN CENTRAL MISSOURI
  MONITEAU COUNTY IN CENTRAL MISSOURI

* UNTIL 930 AM CDT

* AT 851 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 20 MILES NORTHWEST OF MIDWAY TO
  CLARKSBURG...MOVING EAST AT 20 MPH. THE PRIMARY THREAT FROM THIS
  LINE OF STORMS WILL BE DAMAGING HAIL.

* LOCATIONS IMPACTED INCLUDE...
  MIDWAY
  JAMESTOWN
  EASLEY
  COLUMBIA
  STURGEON
  ASHLAND

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

LAT...LON 3926 9243 3863 9276 3868 9226 3926 9212

$$

FG

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 8:44 AM CDT	Severe Thunderstorm Warning	LSX	Monroe	46 min
Apr 28, 9:23 AM CDT	Severe Thunderstorm Warning	LSX	Audrain	67 min
Apr 28, 10:04 AM CDT	Severe Thunderstorm Warning	LSX	Gasconade, Osage	41 min
Apr 28, 2:24 PM CDT	Severe Thunderstorm Warning	LSX	Montgomery	36 min
Apr 28, 2:41 PM CDT	Severe Thunderstorm Warning	LSX	Warren	34 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.