Alert archive / Missouri / Tornado Warnings in 2003

Tornado Warning 6, NWS Springfield, MO

April 20, 2003Howell County, Ozark County, Missouri

NWS Springfield, MO issued this tornado warning at Apr 20, 2003, 1:23 AM CDT for Howell County, Ozark County, Missouri. It was in force for 52 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 20, 2003, 1:23 AM CDT (06:23 UTC)
Expired: Apr 20, 2003, 2:15 AM CDT
In force: 52 min
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text

Counties Howell County, MO, Ozark County, MO

The radar

The Springfield radar (KSGF), 141 km from the middle of the area, began a volume at 06:23 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
Apr 19, 10:35 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 6.4 hours before the alert went out and 162 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: 11 J/kg
Mixed-layer CIN: -140 J/kg
Mixed-layer LCL: 902 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 286 m²/s²
0-3 km storm-relative helicity: 217 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KSGF 200623
TORSGF
MOC091-153-200715-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
121 AM CDT SUN APR 20 2003

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN OZARK COUNTY IN MISSOURI
  SOUTHERN HOWELL COUNTY IN MISSOURI

* UNTIL 215 AM CDT

* AT 118 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES
  SOUTHWEST OF BAKERSFIELD...OR 28 MILES SOUTHWEST OF WEST           
  PLAINS...  MOVING NORTHEAST AT 40 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
   WEST PLAINS BY 155 AM CDT.

THIS STORM HAS A HISTORY OF PRODUCING STRUCTURAL DAMAGE NEAR 
MOUNTAIN HOME ARKANSAS.

THE TOWNS OF CAULFIELD...MOODY...SOUTH FORK...POTTERSVILLE AND WHITE
CHURCH ARE ALSO IN THE PATH OF THIS TORNADIC STORM.

RESIDENTS OF BAKERSFIELD NEED TO TAKE COVER NOW 

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.


LAT...LON 3651 9227 3639 9214 3668 9170 3697 9169

$$

CRAMER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 8:08 PM CDT	Tornado Warning	SGF	Barton	37 min
Apr 19, 8:22 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	53 min
Apr 19, 8:42 PM CDT	Severe Thunderstorm Warning	SGF	Barton	48 min
Apr 19, 8:52 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, St. Clair	38 min
Apr 19, 9:28 PM CDT	Severe Thunderstorm Warning	SGF	Benton, St. Clair	62 min
Apr 19, 10:02 PM CDT	Severe Thunderstorm Warning	SGF	Morgan	58 min
Apr 19, 10:31 PM CDT	Severe Thunderstorm Warning	SGF	Stone	44 min
Apr 19, 11:17 PM CDT	Severe Thunderstorm Warning	SGF	Jasper	43 min
Apr 19, 11:29 PM CDT	Severe Thunderstorm Warning	SGF	Barton	31 min
Apr 19, 11:35 PM CDT	Severe Thunderstorm Warning	SGF	Ozark, Taney	55 min
Apr 19, 11:58 PM CDT	Severe Thunderstorm Warning	SGF	Dade	47 min
Apr 20, 12:21 AM CDT	Severe Thunderstorm Warning	SGF	Ozark	39 min

Nearby

Tornado Warnings in Missouri, 2003 Every tornado warning in 2003 Tornadoes 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.