Alert archive / Missouri / Tornado Warnings in 2009

Tornado Warning 14, NWS St. Louis, MO

May 8, 20094 counties in Missouri

NWS St. Louis, MO issued this tornado warning at May 8, 2009, 11:31 AM CDT for 4 counties in Missouri. It was in force for 29 min. 12 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 8, 2009, 11:31 AM CDT (16:31 UTC)
Expired: May 8, 2009, 12:00 PM CDT
In force: 29 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon

Counties Iron County, MO, Madison County, MO, Saint Francois County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 112 km from the middle of the area, began a volume at 16:34 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	Remark
May 8, 11:40 AM CDT	FUNNEL CLOUD	2 W Farmington, MO
May 8, 11:45 AM CDT	TSTM WND DMG	1 Se Iron Mountain, MO	WIRES AND TREES DOWN OVER THE ROADS WITHIN THE IRON MOUNTAIN LAKE RESORT.
May 8, 11:45 AM CDT	TSTM WND GST 76	Iron Mountain, MO	AT 1145 AM CDT AMATEUR RADIO OPERATOR REPORTED 76 MPH IN IRON MOUNTAIN
May 8, 11:50 AM CDT	FUNNEL CLOUD	Farmington, MO
May 8, 11:57 AM CDT	TORNADO	3 W Farmington, MO	TORNADO TOUCHED DOWN ON THE HILLSIDE TO THE WEST OF FARMINGTON ... DISTANCE ESTIMATED.
May 8, 11:59 AM CDT	TSTM WND GST 60	4 W Farmington, MO	SEVERAL LARGE TREES DOWN WEST SIDE OF STE FRANCOIS COUNTY MO
May 8, 12:00 PM CDT	TSTM WND DMG	2 W Doe Run, MO	TWO POWER POLES SNAPPED ALONG HIGHWAY W.
May 8, 12:02 PM CDT	TSTM WND DMG	2 N Farmington, MO	MULTIPLE TREES DOWN ESTIMATED AT 10 INCHES IN DIAMETER AT THE INTERSECTION OF CURRENT ROAD AND OLD HIGHWAY 67
May 8, 12:04 PM CDT	TSTM WND DMG	Doe Run, MO	LARGE TREE UPROOTED IN DOE RUN ALONG HIGHWAY W.
May 8, 12:05 PM CDT	TSTM WND DMG	Farmington, MO	HALF A ROOF TORN OF A HOUSE AT INTERSECTION OF LIBERTY AND JEFFERSON.
May 8, 12:08 PM CDT	TSTM WND DMG	Pilot Knob, MO	ESTIMATED STRAIGHT LINE WINDS GUSTING AT 50 TO 70 MPH BRINGING DOWN MULTIPLE TREES ESTIMATED AT 12 TO 15 INCH DIAMETER SIZE
May 8, 12:10 PM CDT	TSTM WND DMG	Farmington, MO	ROOF TORN OFF OF THE EL TAPATIO RESTAURANT.

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 8, 9:21 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 4.5 hours before the alert went out and 303 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: 3210 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 556 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 256 m²/s²
Significant tornado parameter: 2.3
Supercell composite: 9.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLSX 081631
TORLSX
MOC093-123-187-221-081700-
/O.NEW.KLSX.TO.W.0014.090508T1631Z-090508T1700Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1131 AM CDT FRI MAY 8 2009

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  IRON COUNTY IN SOUTHEAST MISSOURI...
  NORTHERN MADISON COUNTY IN SOUTHEAST MISSOURI...
  ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...
  SOUTHEASTERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL NOON CDT

* AT 1130 AM CDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO NEAR 
  BELLEVIEW. DOPPLER RADAR SHOWED THIS TORNADO MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BISMARCK...FARMINGTON...PILOT KNOB...IRON MOUNTAIN...KNOB LICK...
  DOE RUN...LEADINGTON...MINE LA MOTTE AND LIBERTYVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3763 9079 3781 9080 3784 9041 3768 9020
      3758 9015
TIME...MOT...LOC 1630Z 265DEG 38KT 3772 9069

$$

BRITT

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 10:04 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Moniteau	56 min
May 7, 10:26 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Saint Louis	47 min
May 7, 10:52 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway, Cole, Moniteau, Osage	53 min
May 7, 11:20 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Osage	55 min
May 7, 11:36 PM CDT	Severe Thunderstorm Warning	LSX	Cole, Osage	54 min
May 7, 11:38 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Gasconade	57 min
May 8, 12:07 AM CDT	Severe Thunderstorm Warning	LSX	Cole, Moniteau	38 min
May 8, 12:15 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Gasconade, Washington	30 min
May 8, 12:32 AM CDT	Tornado Warning	LSX	Crawford, Washington	28 min
May 8, 12:58 AM CDT	Tornado Warning	LSX	Crawford, Iron, Saint Francois, Washington	37 min
May 8, 1:29 AM CDT	Severe Thunderstorm Warning	LSX	Iron, Madison, Sainte Genevieve, Saint Francois	46 min
May 8, 7:51 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Gasconade, Osage	39 min
May 8, 8:06 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin	39 min
May 8, 8:38 AM CDT	Severe Thunderstorm Warning	LSX	Franklin, Washington	37 min
May 8, 9:01 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Iron, Washington	44 min
May 8, 9:12 AM CDT	Flash Flood Warning	LSX	Osage	5 hr
May 8, 9:37 AM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson, Saint Francois, Washington	38 min
May 8, 9:53 AM CDT	Severe Thunderstorm Warning	LSX	Iron, Reynolds	52 min
May 8, 10:01 AM CDT	Flash Flood Warning	LSX	Crawford, Gasconade	6 hr
May 8, 10:02 AM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Sainte Genevieve, Saint Francois	43 min
May 8, 10:32 AM CDT	Severe Thunderstorm Warning	LSX	Madison, Saint Francois, Washington	43 min
May 8, 10:47 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Iron, Reynolds	58 min
May 8, 11:01 AM CDT	Flash Flood Warning	LSX	Iron, Jefferson, Sainte Genevieve, Saint Francois, Washington	6 hr
May 8, 11:12 AM CDT	Severe Thunderstorm Warning	LSX	Washington	33 min
May 8, 11:45 AM CDT	Tornado Warning	LSX	Sainte Genevieve, Saint Francois	45 min
May 8, 12:05 PM CDT	Severe Thunderstorm Warning	LSX	Madison, Saint Francois	40 min
May 8, 12:18 PM CDT	River Flood Warning	LSX	Osage	20 hr
May 8, 12:18 PM CDT	River Flood Warning	LSX	Cole	28 hr
May 8, 12:27 PM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve	50 min
May 8, 12:31 PM CDT	Tornado Warning	LSX	Madison	15 min
May 8, 3:51 PM CDT	Areal Flood Warning	LSX	Crawford, Gasconade	12 hr

Nearby

Tornado Warnings in Missouri, 2009 Every tornado warning in 2009 Tornadoes in 2009

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.