Alert archive / Missouri / Tornado Warnings in 2015
Tornado Warning 11, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 9, 2015, 5:49 PM CDT for Lincoln County, Saint Charles County, Missouri. It was in force for 26 min. 11 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
- Apr 9, 2015, 5:49 PM CDT (22:49 UTC)
- Expired
- Apr 9, 2015, 6:15 PM CDT
- In force
- 26 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Lincoln County, MO, Saint Charles County, MO
The radar
The St Louis radar (KLSX), 39 km from the middle of the area, began a volume at 22:49 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 |
|---|---|---|---|
| Apr 9, 5:50 PM CDT | TSTM WND DMG | Troy, MO | NUMEROUS POWER LINES DOWN FORCED THE CLOSING OF HIGHWAY 47 AT THE JUNCTURE OF HIGHWAY H AND HIGHWAY J. |
| Apr 9, 5:50 PM CDT | HAIL 1 | Troy, MO | |
| Apr 9, 5:53 PM CDT | TSTM WND DMG | Troy, MO | POWER LINES BLOWN DOWN |
| Apr 9, 5:53 PM CDT | HAIL 1.75 | 1 N Moscow Mills, MO | |
| Apr 9, 5:53 PM CDT | HAIL 1.75 | Troy, MO | |
| Apr 9, 5:58 PM CDT | TSTM WND DMG | 1 W Troy, MO | FOUR OR FIVE POWER POLES SNAPPED 4-5 FEET OFF THE GROUND ON NORTH MOORE SCHOOL ROAD. |
| Apr 9, 5:58 PM CDT | TSTM WND DMG | Troy, MO | ALMOST GOLF BALL SIZE HAIL ALONG WITH AN ANCHORED SWING SET BLOWN 30 FEET |
| Apr 9, 5:58 PM CDT | HAIL 1.5 | Troy, MO | ALMOST GOLF BALL SIZE HAIL ALONG WITH AN ANCHORED SWING SET BLOWN 30 FEET |
| Apr 9, 6:07 PM CDT | TSTM WND DMG | Troy, MO | SNAPPED POWER POLES IN TROY. |
| Apr 9, 6:08 PM CDT | TSTM WND DMG | 2 W Troy, MO | POWER POLES SNAPPED AND POWER LINES DOWN. |
| Apr 9, 6:23 PM CDT | HAIL 1.25 | 4 E Troy, MO | WIND WAS MODERATE AND NOT DAMAGING. |
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 |
|---|---|---|---|
| Apr 9, 4:40 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.8 hours before the alert went out and 241 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
- 114 J/kg
- Mixed-layer CIN
- -122 J/kg
- Mixed-layer LCL
- 1085 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
103
WFUS53 KLSX 092249
TORLSX
MOC113-183-092315-
/O.NEW.KLSX.TO.W.0011.150409T2249Z-150409T2315Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
549 PM CDT THU APR 9 2015
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHERN LINCOLN COUNTY IN EAST CENTRAL MISSOURI...
NORTHWESTERN ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 615 PM CDT
* AT 545 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR HAWK POINT...AND MOVING EAST AT 45 MPH.
HAZARD...TORNADO AND QUARTER SIZE HAIL.
SOURCE...WEATHER SPOTTERS REPORTED FUNNEL CLOUD.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
* LOCATIONS IMPACTED INCLUDE...
TROY...MOSCOW MILLS...WINFIELD AND OLD MONROE.
THIS WARNING INCLUDES CUIVRE RIVER STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3909 9077 3888 9070 3889 9111 3893 9111
3893 9112 3901 9113
TIME...MOT...LOC 2249Z 254DEG 40KT 3895 9102
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
KANOFSKY2 follow-up statements
179
WWUS53 KLSX 092258
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
558 PM CDT THU APR 9 2015
MOC113-183-092315-
/O.CON.KLSX.TO.W.0011.000000T0000Z-150409T2315Z/
LINCOLN MO-ST. CHARLES MO-
558 PM CDT THU APR 9 2015
...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL ST. CHARLES
AND SOUTHEASTERN LINCOLN COUNTIES UNTIL 615 PM CDT...
AT 555 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR MOSCOW MILLS...AND MOVING EAST AT 45 MPH.
HAZARD...TORNADO AND QUARTER SIZE HAIL.
SOURCE...WEATHER SPOTTERS REPORTED FUNNEL CLOUD.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
LOCATIONS IMPACTED INCLUDE...
WINFIELD AND OLD MONROE.
THIS WARNING INCLUDES CUIVRE RIVER STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3889 9095 3905 9096 3909 9077 3888 9070
TIME...MOT...LOC 2259Z 254DEG 40KT 3898 9088
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
KANOFSKY928 WWUS53 KLSX 092308 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 608 PM CDT THU APR 9 2015 MOC113-183-092318- /O.EXP.KLSX.TO.W.0011.000000T0000Z-150409T2315Z/ LINCOLN MO-ST. CHARLES MO- 608 PM CDT THU APR 9 2015 ...THE TORNADO WARNING FOR NORTHWESTERN ST. CHARLES AND SOUTHEASTERN LINCOLN COUNTIES WILL EXPIRE AT 615 PM CDT... THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA. ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO WATCH REMAINS IN EFFECT UNTIL 11 PM. LAT...LON 3889 9095 3905 9096 3909 9077 3888 9070 TIME...MOT...LOC 2308Z 254DEG 40KT 3901 9076 $$ KANOFSKY
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 8:02 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson | 31 min |
| Apr 8, 9:04 PM CDT | Areal Flood Warning | LSX | Sainte Genevieve, Saint Francois | 6 hr |
| Apr 8, 9:09 PM CDT | Flash Flood Warning | LSX | Jefferson | 6 hr |
| Apr 9, 6:10 AM CDT | Areal Flood Advisory | LSX | Franklin, Jefferson, Lincoln, Saint Charles, Saint Louis, Warren and 1 more | 4 hr |
| Apr 9, 11:45 AM CDT | River Flood Warning | LSX | Saint Charles | 25 hr |
| Apr 9, 3:20 PM CDT | Severe Thunderstorm Warning | LSX | Boone | 40 min |
| Apr 9, 3:54 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Monroe | 42 min |
| Apr 9, 4:13 PM CDT | Tornado Warning | LSX | Audrain | 32 min |
| Apr 9, 4:16 PM CDT | Severe Thunderstorm Warning | LSX | Lewis | 29 min |
| Apr 9, 4:31 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Monroe, Pike, Ralls | 29 min |
| Apr 9, 5:07 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Lincoln, Montgomery, Warren | 38 min |
| Apr 9, 5:19 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Lincoln, Pike, Ralls | 41 min |
| Apr 9, 5:42 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Warren | 25 min |
| Apr 9, 6:04 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 41 min |
| Apr 9, 6:12 PM CDT | River Flood Warning | LSX | Jefferson, Saint Louis | 3 days |
| Apr 9, 6:17 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Jefferson, Saint Francois, Washington | 58 min |
| Apr 9, 6:55 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 35 min |
Nearby
Tornado Warnings in Missouri, 2015Every tornado warning in 2015Tornadoes in 2015
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.