Alert archive / Missouri / Tornado Warnings in 2004

Tornado Warning 16, NWS St. Louis, MO

May 26, 2004Washington County, Missouri

NWS St. Louis, MO issued this tornado warning at May 26, 2004, 7:02 PM CDT for Washington County, Missouri. It was in force for 58 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 26, 2004, 7:02 PM CDT (00:02 UTC)
Expired: May 26, 2004, 8:00 PM CDT
In force: 58 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

County Washington County, MO

The radar

The St Louis radar (KLSX), 72 km from the middle of the area, began a volume at 00:07 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.

What was reported inside it

Time	Report	Where
May 26, 7:29 PM CDT	HAIL 0.88	Old Mines, MO
May 26, 7:45 PM CDT	HAIL 1	Potosi, MO
May 26, 7:50 PM CDT	HAIL 1	Potosi, MO

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 26, 1:10 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 0.0 hours before the alert went out and 286 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: 1669 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 828 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 273 m²/s²
0-3 km storm-relative helicity: 351 m²/s²
Significant tornado parameter: 2.7
Supercell composite: 12.9

Open this sounding in Storm Lab

The text

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

886 
WFUS53 KLSX 270001
TORLSX
ILC133-163-MOC099-189-270045-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
701 PM CDT WED MAY 26 2004

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN JEFFERSON COUNTY IN EAST CENTRAL MISSOURI
  SOUTHERN ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI
  NORTHERN MONROE COUNTY IN SOUTHWEST ILLINOIS
  WESTERN ST. CLAIR COUNTY IN SOUTHWEST ILLINOIS

* UNTIL 745 PM CDT

* AT 701 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION NEAR PEERLESS PARK. THE
  STORM WAS MOVING EAST AT 40 MPH...AND MAY PRODUCE A TORNADO AT ANY
  TIME

* LOCATIONS IMPACTED INCLUDE...
  LAKESHIRE
  MEHLVILLE
  LEMAY
  AFFTON
  DUPO
  COLUMBIA
  EAST CARONDELET
  MILLSTADT

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER NOW MOVE TO A
BASEMENT...UNDERGROUND STORM SHELTER...OR AN INTERIOR ROOM OR HALLWAY
ON THE LOWEST LEVEL OF A STURDY BUILDING.

IF YOU LIVE IN A MOBILE HOME OR TRAILER...ABANDON IT IMMEDIATELY AND
SEEK SHELTER IN A MORE SUBSTANTIAL SHELTER.

LAT...LON 3860 9059 3844 9064 3834 8995 3853 8990

$$

TRUETT

The office that day

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

Issued	Product	Office	Counties	Lasted
May 26, 7:01 PM CDT	Tornado Warning	LSX	Jefferson, Saint Louis	44 min
May 26, 7:44 PM CDT	Tornado Warning	LSX	Saint Francois	61 min
May 26, 8:11 PM CDT	Tornado Warning	LSX	Sainte Genevieve	64 min
May 27, 3:23 PM CDT	Severe Thunderstorm Warning	LSX	Pike	52 min
May 27, 4:12 PM CDT	Severe Thunderstorm Warning	LSX	Pike	48 min
May 27, 4:27 PM CDT	Severe Thunderstorm Warning	LSX	Pike	33 min
May 27, 4:43 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Shelby	62 min
May 27, 5:23 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone	67 min
May 27, 5:40 PM CDT	Severe Thunderstorm Warning	LSX	Pike, Ralls	50 min
May 27, 5:44 PM CDT	Flash Flood Warning	LSX	Monroe, Pike, Ralls	4 hr
May 27, 5:45 PM CDT	Severe Thunderstorm Warning	LSX	Monroe	15 min
May 27, 6:04 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Montgomery	41 min
May 27, 6:24 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln	51 min
May 27, 6:39 PM CDT	Severe Thunderstorm Warning	LSX	Warren	51 min
May 27, 6:46 PM CDT	Tornado Warning	LSX	Lincoln, Warren	44 min
May 27, 6:55 PM CDT	Severe Thunderstorm Warning	LSX	Saint Louis, City of Saint Louis	50 min
May 27, 6:59 PM CDT	Tornado Warning	LSX	Saint Charles	46 min

Nearby

Tornado Warnings in Missouri, 2004 Every tornado warning in 2004 Tornadoes in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.