Alert archive / Missouri / Tornado Warnings in 2009
Tornado Warning 4, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Mar 8, 2009, 10:39 AM CDT for 4 counties in Missouri. It was in force for 36 min. 6 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
- Mar 8, 2009, 10:39 AM CDT (15:39 UTC)
- Expired
- Mar 8, 2009, 11:15 AM CDT
- In force
- 36 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
Counties Jefferson County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 77 km from the middle of the area, began a volume at 15:38 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 |
|---|---|---|---|
| Mar 8, 10:40 AM CDT | HAIL 0.75 | 2 Sw Cadet, MO | |
| Mar 8, 10:40 AM CDT | HAIL 0.88 | Potosi, MO | |
| Mar 8, 11:00 AM CDT | TSTM WND DMG | Festus, MO | SMALL LIMBS DOWN...PEA SIZE HAIL |
| Mar 8, 11:05 AM CDT | TSTM WND GST 68 | 10 S Festus, MO | PEA SIZE HAIL |
| Mar 8, 11:05 AM CDT | HAIL 1.5 | 10 Nw Bloomsdale, MO | |
| Mar 8, 11:10 AM CDT | TSTM WND DMG | 7 Nnw Bloomsdale, MO | LARGE CONSTRUCTION CRANE BLOWN DOWN...CORRECTION FOR LOCATION AND TIME |
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 |
|---|---|---|---|
| Mar 8, 6:32 AM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 3.7 hours before the alert went out and 292 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 441 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 389 m²/s²
- 0-3 km storm-relative helicity
- 401 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KLSX 081539 TORLSX MOC099-186-187-221-081615- /O.NEW.KLSX.TO.W.0004.090308T1539Z-090308T1615Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1039 AM CDT SUN MAR 8 2009 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN JEFFERSON COUNTY IN EAST CENTRAL MISSOURI EASTERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI NORTHERN STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI * UNTIL 1115 AM CDT * AT 1038 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION NEAR POTOSI...MOVING EAST AT 60 MPH. * LOCATIONS IMPACTED INCLUDE... BONNE TERRE... OLYMPIAN VILLAGE... BLOOMSDALE... STE. GENEVIEVE... 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 3788 9079 3811 9081 3823 9039 3797 9004 TIME...MOT...LOC 1540Z 259DEG 52KT 3797 9074 $$ GLASS
1 follow-up statement
000
WWUS53 KLSX 081554
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1054 AM CDT SUN MAR 8 2009
MOC221-081604-
/O.CAN.KLSX.TO.W.0004.000000T0000Z-090308T1615Z/
WASHINGTON MO-
1054 AM CDT SUN MAR 8 2009
...THE TORNADO WARNING FOR EASTERN WASHINGTON COUNTY IS CANCELLED...
LAT...LON 3816 9062 3823 9039 3809 9021 3797 9004
3790 9064
TIME...MOT...LOC 1554Z 259DEG 52KT 3801 9049
$$
MOC099-186-187-081615-
/O.CON.KLSX.TO.W.0004.000000T0000Z-090308T1615Z/
ST. FRANCOIS MO-STE. GENEVIEVE MO-JEFFERSON MO-
1054 AM CDT SUN MAR 8 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 AM CDT FOR
SOUTHEASTERN JEFFERSON...NORTHERN STE. GENEVIEVE AND ST. FRANCOIS
COUNTIES...
AT 1049 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR BLACKWELL...OR NEAR
BONNE TERRE...AND WAS MOVING EAST AT 60 MPH.
LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...BLOOMSDALE AND STE.
GENEVIEVE.
IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
QUARTER SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS. NUMEROUS
REPORTS OF HAIL TO THE SIZE OF NICKELS WERE REPORTED AROUND POTOSI
AND CADET.
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 3816 9062 3823 9039 3809 9021 3797 9004
3790 9064
TIME...MOT...LOC 1554Z 259DEG 52KT 3801 9049
$$
GLASSThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 7, 9:54 PM CST | Flash Flood Watch | LSX | Knox, Lewis, Marion, Monroe, Shelby | 8 hr |
| Mar 8, 8:37 AM CDT | Severe Thunderstorm Warning | LSX | Boone, Callaway, Cole, Moniteau, Osage | 38 min |
| Mar 8, 9:21 AM CDT | Severe Thunderstorm Warning | LSX | Callaway, Cole, Franklin, Gasconade, Lincoln, Montgomery and 2 more | 39 min |
| Mar 8, 9:49 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Osage | 26 min |
| Mar 8, 9:51 AM CDT | Tornado Warning | LSX | Crawford | 24 min |
| Mar 8, 10:14 AM CDT | Tornado Warning | LSX | Crawford, Washington | 31 min |
| Mar 8, 10:16 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Warren | 35 min |
| Mar 8, 10:19 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Warren | 26 min |
| Mar 8, 10:36 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Saint Louis, City of Saint Louis | 24 min |
| Mar 8, 10:51 AM CDT | Tornado Warning | LSX | Lincoln | 24 min |
| Mar 8, 11:06 AM CDT | Tornado Warning | LSX | Jefferson, Sainte Genevieve | 39 min |
| Mar 8, 12:16 PM CDT | Wind Advisory | LSX | Audrain, Boone, Callaway, Cole, Crawford, Franklin and 20 more | 7 hr |
| Mar 8, 2:14 PM CDT | River Flood Warning | LSX | Lewis | 5 days |
| Mar 8, 2:14 PM CDT | River Flood Warning | LSX | Lewis | 4 days |
Nearby
Tornado Warnings in Missouri, 2009Every tornado warning in 2009Tornadoes 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.