Alert archive / Missouri / Tornado Warnings in 2009
Tornado Warning 18, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at May 13, 2009, 6:39 PM CDT for Knox County, Lewis County, Missouri. It was in force for 66 min. 7 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 13, 2009, 6:39 PM CDT (23:39 UTC)
- Expired
- May 13, 2009, 7:45 PM CDT
- In force
- 66 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
Counties Knox County, MO, Lewis County, MO
The radar
The St Louis radar (KLSX), 181 km from the middle of the area, began a volume at 23:42 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 13, 6:40 PM CDT | TORNADO | 2 N Edina, MO | STRUCTURES DESTROYED...TREES AND POWER POLES SNAPPED AND ACROSS THE ROAD AROUND 2 MILES NORTH OF EDINA ON HIGHWAY 15 |
| May 13, 6:42 PM CDT | TSTM WND DMG | 1 N Edina, MO | POWER LINES BLOWN DOWN ON NORTH SIDE OF TOWN. VERY HEAVY RAINFALL AS WELL. |
| May 13, 6:48 PM CDT | TSTM WND DMG | 1 N Edina, MO | POWER LINES BLOWN DOWN ON NORTH SIDE OF TOWN. VERY HEAVY RAINFALL AS WELL. |
| May 13, 6:54 PM CDT | FUNNEL CLOUD | 1 Nw Knox City, MO | RAPIDLY ROTATING WALL CLOUD WITH NUMEROUS FUNNELS. |
| May 13, 7:03 PM CDT | TORNADO | 2 N La Belle, MO | RAIN WRAPPED TORNADO. |
| May 13, 7:20 PM CDT | FUNNEL CLOUD | 6 N Monticello, MO | |
| May 13, 7:35 PM CDT | TORNADO | 5 Nw Canton, MO | REPORT VIA LEWIS COUNTY 911 |
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 13, 2:39 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 11.7 hours before the alert went out and 196 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
- 556 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 332 m²/s²
- 0-3 km storm-relative helicity
- 344 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS53 KLSX 132339
TORLSX
MOC103-111-140045-
/O.NEW.KLSX.TO.W.0018.090513T2339Z-090514T0045Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
639 PM CDT WED MAY 13 2009
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* TORNADO WARNING FOR...
NORTHERN KNOX COUNTY IN NORTHEAST MISSOURI...
LEWIS COUNTY IN NORTHEAST MISSOURI...
* UNTIL 745 PM CDT
* AT 635 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR EDINA...AND MOVING EAST AT 45 MPH.
* LOCATIONS IMPACTED INCLUDE...
CANTON...KNOX CITY...COLONY...LA BELLE...LEWISTOWN...EWING...
MAYWOOD...LA GRANGE AND MONTICELLO.
THIS STORM HAS HAD A HISTORY OF PRODUCING LARGE VIOLENT TORNADOES.
TAKE SHELTER IMMEDIATELY...THIS IS A LIFE THREATENING SITUATION
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 4024 9150 4013 9152 4000 9149 3995 9145
3995 9180 4015 9233 4027 9222
TIME...MOT...LOC 2338Z 280DEG 40KT 4017 9216
$$
CVKING3 follow-up statements
000
WWUS53 KLSX 132351
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
651 PM CDT WED MAY 13 2009
MOC103-111-140045-
/O.CON.KLSX.TO.W.0018.000000T0000Z-090514T0045Z/
LEWIS MO-KNOX MO-
651 PM CDT WED MAY 13 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR NORTHERN
KNOX AND LEWIS COUNTIES...
AT 649 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND STORM
SPOTTERS WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO. THIS
TORNADO WAS LOCATED NORTHEAST OF EDINA...MOVING EAST-SOUTHEAST AT 25
MPH.
THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. THIS
STORM IS PRODUCING STRONG TO VIOLENT TORNADOES. IF YOU ARE
IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.
LOCATIONS IMPACTED INCLUDE...
CANTON...COLONY...KNOX CITY...LA BELLE...LEWISTOWN...EWING...
MAYWOOD...LA GRANGE AND MONTICELLO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES
OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF
NO SHELTER IS AVAILABLE... LIE FLAT IN THE NEAREST DITCH OR OTHER LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
&&
LAT...LON 4024 9150 4013 9152 4000 9149 3995 9145
3995 9180 4015 9233 4027 9222
TIME...MOT...LOC 2350Z 292DEG 20KT 4022 9211
$$
CVKING000
WWUS53 KLSX 140007
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
707 PM CDT WED MAY 13 2009
MOC103-140016-
/O.CAN.KLSX.TO.W.0018.000000T0000Z-090514T0045Z/
KNOX MO-
707 PM CDT WED MAY 13 2009
...THE TORNADO WARNING FOR NORTHERN KNOX COUNTY IS CANCELLED...
LAT...LON 4024 9150 4013 9152 4000 9149 3995 9145
3995 9158 4007 9196 4025 9195
TIME...MOT...LOC 0006Z 285DEG 25KT 4019 9195
$$
MOC111-140045-
/O.CON.KLSX.TO.W.0018.000000T0000Z-090514T0045Z/
LEWIS MO-
707 PM CDT WED MAY 13 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR LEWIS
COUNTY...
AT 706 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND STORM
SPOTTERS WERE TRACKING AN EXTREMELY DANGEROUS TORNADO. THIS TORNADO
WAS LOCATED 2 MILES NORTH OF LA BELLE...OR 12 MILES EAST OF
EDINA...MOVING EAST AT 30 MPH.
LOCATIONS IMPACTED INCLUDE...
CANTON...LA BELLE...LEWISTOWN...EWING...LA GRANGE AND MONTICELLO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES
OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF
NO SHELTER IS AVAILABLE... LIE FLAT IN THE NEAREST DITCH OR OTHER LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. THIS
STORM IS CAPABLE OF PRODUCING STRONG TO VIOLENT TORNADOES. IF YOU ARE
IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.
&&
LAT...LON 4024 9150 4013 9152 4000 9149 3995 9145
3995 9158 4007 9196 4025 9195
TIME...MOT...LOC 0006Z 285DEG 25KT 4019 9195
$$
CVKING000
WWUS53 KLSX 140024
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
724 PM CDT WED MAY 13 2009
MOC111-140045-
/O.CON.KLSX.TO.W.0018.000000T0000Z-090514T0045Z/
LEWIS MO-
724 PM CDT WED MAY 13 2009
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR NORTHERN
LEWIS COUNTY...
AT 722 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NORTH OF MONTICELLO...OR
13 MILES WEST OF CANTON...MOVING EAST AT 30 MPH.
LOCATIONS IMPACTED INCLUDE...
CANTON...LA GRANGE AND MONTICELLO.
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.
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.
&&
LAT...LON 4015 9186 4025 9181 4024 9150 4013 9152
4000 9149
TIME...MOT...LOC 0024Z 283DEG 24KT 4017 9174
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 3:41 AM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 49 min |
| May 13, 3:44 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Lincoln, Montgomery, Pike | 46 min |
| May 13, 4:18 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Pike | 42 min |
| May 13, 2:44 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Madison, Reynolds | 34 min |
| May 13, 3:04 PM CDT | Flash Flood Watch | LSX | Boone, Callaway, Cole, Crawford, Franklin, Gasconade and 15 more | 12 hr |
| May 13, 5:55 PM CDT | Tornado Warning | LSX | Knox | 65 min |
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.