Alert archive / Missouri / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 415, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 27, 2011, 1:27 AM CDT for 7 counties in Missouri; Calhoun County, Illinois. It was in force for 63 min. 5 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
- Jun 27, 2011, 1:27 AM CDT (06:27 UTC)
- Expired
- Jun 27, 2011, 2:30 AM CDT
- In force
- 63 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 70.0 mph
Counties Calhoun County, IL, Audrain County, MO, Callaway County, MO, Lincoln County, MO, Montgomery County, MO, Pike County, MO, Saint Charles County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 56 km from the middle of the area, began a volume at 06:30 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 |
|---|---|---|---|
| Jun 27, 1:30 AM CDT | TSTM WND GST 80 | 6 Nw New Hartford, MO | |
| Jun 27, 2:00 AM CDT | TSTM WND DMG | Truesdale, MO | POWER LINES DOWN...WRIGHT CITY ALSO |
| Jun 27, 2:00 AM CDT | TSTM WND DMG | Warrenton, MO | A LARGE TREE WAS BLOWN OVER ONTO A CAR ON ROOSEVELT AVENUE. |
| Jun 27, 2:15 AM CDT | TSTM WND DMG | Montgomery City, MO | UP TO 3 INCH DIAMETER BRANCHES SNAPPED OFF TREES. LARGE TRASH DUMPSTERS BLOWN OUT ONTO THE STREETS. |
| Jun 27, 2:32 AM CDT | TSTM WND DMG | Montgomery City, MO | UP TO 3 INCH DIAMETER BRANCHES SNAPPED OFF TREES. LARGE TRASH DUMPSTERS BLOWN OUT ONTO THE STREETS. |
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 |
|---|---|---|---|
| Jun 26, 6:55 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 26, 7:12 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 6.5 hours before the alert went out and 243 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
- 611 J/kg
- Mixed-layer CIN
- -178 J/kg
- Mixed-layer LCL
- 767 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 169 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
244 WUUS53 KLSX 270627 SVRLSX ILC013-MOC007-027-113-139-163-183-219-270730- /O.NEW.KLSX.SV.W.0415.110627T0627Z-110627T0730Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 127 AM CDT MON JUN 27 2011 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CALHOUN COUNTY IN SOUTHWEST ILLINOIS... EAST CENTRAL AUDRAIN COUNTY IN CENTRAL MISSOURI... EAST CENTRAL CALLAWAY COUNTY IN CENTRAL MISSOURI... LINCOLN COUNTY IN EAST CENTRAL MISSOURI... MONTGOMERY COUNTY IN EAST CENTRAL MISSOURI... SOUTHERN PIKE COUNTY IN NORTHEAST MISSOURI... WEST CENTRAL ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI... NORTHERN WARREN COUNTY IN EAST CENTRAL MISSOURI... * UNTIL 230 AM CDT * AT 125 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM CURRYVILLE TO FULTON...AND MOVING SOUTHEAST AT 65 MPH. * LOCATIONS IMPACTED INCLUDE... MONTGOMERY CITY...ELSBERRY...TROY...WARRENTON...WRIGHT CITY...NEW HARTFORD...BUELL...MINEOLA...BELLFLOWER...NEW FLORENCE...EOLIA... BIG SPRING...DAVIS...JONESBURG...HAWK POINT...TRUESDALE...MOSCOW MILLS...ST. CLEMENT...ASHLEY AND CYRENE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. && LAT...LON 3930 9067 3871 9097 3881 9173 3934 9138 TIME...MOT...LOC 0627Z 303DEG 60KT 3927 9127 3885 9186 WIND...HAIL 70MPH 1.00IN $$ GKS
2 follow-up statements
178
WWUS53 KLSX 270653
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
153 AM CDT MON JUN 27 2011
ILC013-MOC007-027-113-139-163-183-219-270730-
/O.CON.KLSX.SV.W.0415.000000T0000Z-110627T0730Z/
CALHOUN IL-CALLAWAY MO-LINCOLN MO-MONTGOMERY MO-PIKE MO-
ST. CHARLES MO-WARREN MO-AUDRAIN MO-
153 AM CDT MON JUN 27 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CALHOUN COUNTY
IN SOUTHWEST ILLINOIS...AND EAST CENTRAL AUDRAIN AND EAST CENTRAL
CALLAWAY COUNTIES IN CENTRAL MISSOURI...AND NORTHERN WARREN...WEST
CENTRAL ST. CHARLES...MONTGOMERY AND LINCOLN COUNTIES IN EAST CENTRAL
MISSOURI...AND SOUTHERN PIKE COUNTY IN NORTHEAST MISSOURI UNTIL 230
AM CDT...
AT 147 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM CLARKSVILLE TO JONESBURG TO BIG
SPRING...MOVING SOUTHEAST AT 65 MPH.
LOCATIONS IMPACTED INCLUDE...
TROY...ELSBERRY...WRIGHT CITY...TRUESDALE...MOSCOW MILLS...NEW
HOPE...MOZIER...HAMBURG AND FORISTELL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
&&
LAT...LON 3930 9067 3871 9097 3881 9173 3934 9138
TIME...MOT...LOC 0653Z 303DEG 60KT 3925 9080 3883 9112
3872 9135
WIND...HAIL 70MPH 1.00IN
$$
GKS226
WWUS53 KLSX 270737
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
237 AM CDT MON JUN 27 2011
ILC013-MOC007-027-113-139-163-183-219-270746-
/O.EXP.KLSX.SV.W.0415.000000T0000Z-110627T0730Z/
CALHOUN IL-CALLAWAY MO-LINCOLN MO-MONTGOMERY MO-PIKE MO-
ST. CHARLES MO-WARREN MO-AUDRAIN MO-
237 AM CDT MON JUN 27 2011
...THE SEVERE THUNDERSTORM WARNING FOR CALHOUN COUNTY IN SOUTHWEST
ILLINOIS...AND EAST CENTRAL AUDRAIN AND EAST CENTRAL CALLAWAY
COUNTIES IN CENTRAL MISSOURI...AND NORTHERN WARREN...EXTREME WESTERN
ST. CHARLES...MONTGOMERY AND LINCOLN COUNTIES IN EAST CENTRAL
MISSOURI...AND SOUTHERN PIKE COUNTY IN NORTHEAST MISSOURI HAS
EXPIRED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE
WARNED AREA.
ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 AM.
LAT...LON 3930 9067 3871 9097 3881 9173 3934 9138
TIME...MOT...LOC 0653Z 303DEG 60KT 3925 9080 3883 9112
3872 9135
$$
TRUETTThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 7:18 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Warren | 14 min |
| Jun 26, 7:26 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Gasconade, Montgomery, Osage | 38 min |
| Jun 26, 8:28 PM CDT | River Flood Warning | LSX | Boone, Callaway, Cole, Moniteau | 65 days |
| Jun 26, 8:30 PM CDT | Flash Flood Warning | LSX | Knox, Lewis | 12 hr |
| Jun 26, 8:34 PM CDT | Severe Thunderstorm Warning | LSX | Knox, Lewis | 41 min |
| Jun 26, 9:09 PM CDT | River Flood Warning | LSX | Lewis | 4 days |
| Jun 26, 9:09 PM CDT | River Flood Warning | LSX | Marion | 5 days |
| Jun 26, 9:16 PM CDT | Severe Thunderstorm Warning | LSX | Lewis | 59 min |
| Jun 27, 12:11 AM CDT | Severe Thunderstorm Warning | LSX | Knox | 19 min |
| Jun 27, 12:26 AM CDT | Severe Thunderstorm Warning | LSX | Knox, Lewis, Marion, Monroe, Ralls, Shelby | 49 min |
| Jun 27, 12:52 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Callaway, Monroe, Montgomery, Pike and 1 more | 53 min |
| Jun 27, 12:55 AM CDT | Tornado Warning | LSX | Marion, Monroe, Ralls, Shelby | 20 min |
| Jun 27, 1:08 AM CDT | Tornado Warning | LSX | Marion, Monroe, Pike, Ralls | 37 min |
| Jun 27, 1:13 AM CDT | Severe Thunderstorm Warning | LSX | Lewis, Marion | 62 min |
| Jun 27, 1:43 AM CDT | Tornado Warning | LSX | Pike | 32 min |
| Jun 27, 2:04 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Saint Louis | 41 min |
| Jun 27, 2:17 AM CDT | Severe Thunderstorm Warning | LSX | Callaway, Crawford, Franklin, Gasconade, Jefferson, Montgomery and 5 more | 43 min |
| Jun 27, 2:42 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Charles, Saint Louis, City of Saint Louis | 48 min |
| Jun 27, 3:01 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Sainte Genevieve, Saint Francois, Washington | 29 min |
| Jun 27, 3:14 AM CDT | River Flood Warning | LSX | Marion | 4 days |
| Jun 27, 4:18 AM CDT | Severe Thunderstorm Warning | LSX | Cole, Moniteau, Osage | 23 min |
| Jun 27, 8:22 AM CDT | Areal Flood Warning | LSX | Knox, Lewis | 12 hr |
| Jun 27, 8:25 AM CDT | River Flood Warning | LSX | Marion | 4 days |
| Jun 27, 3:11 PM CDT | River Flood Warning | LSX | Franklin, Warren | 22 days |
| Jun 27, 3:11 PM CDT | River Flood Warning | LSX | Saint Charles, Saint Louis | 44 days |
| Jun 27, 5:19 PM CDT | River Flood Warning | LSX | Lincoln | 18 hr |
| Jun 26, 9:45 PM CDT | River Flood Warning | LSX | Clinton | 9 days |
| Jun 26, 10:09 PM CDT | Severe Thunderstorm Warning | LSX | Brown | 36 min |
| Jun 26, 10:11 PM CDT | Flash Flood Warning | LSX | Adams, Brown | 11 hr |
| Jun 27, 2:09 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin | 36 min |
| Jun 27, 8:57 AM CDT | Areal Flood Warning | LSX | Adams, Brown | 12 hr |
Nearby
Severe Thunderstorm Warnings in Missouri, 2011Severe Thunderstorm Warnings in Illinois, 2011Every severe thunderstorm warning in 2011
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.