Alert archive / Missouri / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 49, NWS St. Louis, MO

April 15, 2011Lincoln County, Pike County, Missouri; Pike County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Apr 15, 2011, 1:09 PM CDT for Lincoln County, Pike County, Missouri; Pike County, Illinois. It was in force for 51 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
Apr 15, 2011, 1:09 PM CDT (18:09 UTC)
Expired
Apr 15, 2011, 2:00 PM CDT
In force
51 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Pike County, IL, Lincoln County, MO, Pike County, MO

The radar

The St Louis radar (KLSX), 92 km from the middle of the area, began a volume at 18:11 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

TimeReportWhereRemark
Apr 15, 1:25 PM CDTHAIL 0.25Bowling Green, MO
Apr 15, 1:26 PM CDTHAIL 0.25Bowling Green, MO
Apr 15, 1:35 PM CDTHAIL 1Bowling Green, MO
Apr 15, 1:35 PM CDTTORNADO3 E Bowling Green, MOSIGNIFICANT DAMAGE WAS REPORTED BETWEEN LOUISIANA AND BOWLING GREEN BETWEEN HIGHWAY 54 AND COUNTY ROAD NN. A TRAILER HOME AT 277 AND NN SUSTAINED DAMAGE AND IS NO LONGER INHABITABLE. THE OTHER HOME WAS LOCATED ON COUNTY ROAD 277. DAMAGE ALSO OCCURRED TO TREES
Apr 15, 1:40 PM CDTFUNNEL CLOUD5 Ne Bowling Green, MO1 MILE NORTH OF 54 BETWEEN LOUISIANA AND BOWLING GREEN IN PIKE COUNTY MO
Apr 15, 1:42 PM CDTFUNNEL CLOUDBowling Green, MOFUNNEL CLOUD SIGHTED ON SE SIDE OF CITY.
Apr 15, 1:42 PM CDTTORNADO4 Ne Bowling Green, MOBRIEF TORNADO TOUCHDOWN ON HIGHWAY 54 NEAR ALAN T LYNN INC....TREE DAMAGE REPORTED.

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.

IssuedProductOfficeLasted
Apr 15, 12:47 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 6.2 hours before the alert went out and 230 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-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2011-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2011-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1776 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

498 
WUUS53 KLSX 151809
SVRLSX
ILC149-MOC113-163-151900-
/O.NEW.KLSX.SV.W.0049.110415T1809Z-110415T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
109 PM CDT FRI APR 15 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL PIKE COUNTY IN WEST CENTRAL ILLINOIS...
  NORTHWESTERN LINCOLN COUNTY IN EAST CENTRAL MISSOURI...
  CENTRAL PIKE COUNTY IN NORTHEAST MISSOURI...

* UNTIL 200 PM CDT

* AT 107 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 8 MILES
  SOUTHWEST OF EOLIA...OR 12 MILES SOUTH OF BOWLING GREEN...AND
  MOVING NORTH AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BOWLING GREEN...LOUISIANA...EOLIA...PIKE...ASHLEY...EDGEWOOD...ST.
  CLEMENT...CYRENE...ROCKPORT AND ASHBURN.

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 3961 9096 3907 9103 3908 9126 3954 9131
      3960 9121 3961 9121
TIME...MOT...LOC 1810Z 178DEG 29KT 3919 9113
WIND...HAIL 60MPH 1.00IN

$$

CARNEY
2 follow-up statements
399 
WWUS53 KLSX 151822
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
122 PM CDT FRI APR 15 2011

MOC113-151831-
/O.CAN.KLSX.SV.W.0049.000000T0000Z-110415T1900Z/
LINCOLN MO-
122 PM CDT FRI APR 15 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LINCOLN COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

HOWEVER...A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA UNTIL 900 
PM.

LAT...LON 3923 9101 3923 9124 3954 9131 3960 9120
      3961 9121 3961 9096
TIME...MOT...LOC 1821Z 176DEG 31KT 3928 9117

$$

ILC149-MOC163-151900-
/O.CON.KLSX.SV.W.0049.000000T0000Z-110415T1900Z/
PIKE IL-PIKE MO-
122 PM CDT FRI APR 15 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL PIKE
COUNTY IN WEST CENTRAL ILLINOIS...AND CENTRAL PIKE COUNTY IN
NORTHEAST MISSOURI UNTIL 200 PM CDT...

AT 118 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
SOUTH OF BOWLING GREEN...MOVING NORTH AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  BOWLING GREEN...LOUISIANA...PIKE...ROCKPORT AND ASHBURN.

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 3923 9101 3923 9124 3954 9131 3960 9120
      3961 9121 3961 9096
TIME...MOT...LOC 1821Z 176DEG 31KT 3928 9117
WIND...HAIL 60MPH 1.00IN

$$

CARNEY
277 
WWUS53 KLSX 151843
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
143 PM CDT FRI APR 15 2011

ILC149-MOC163-151900-
/O.CON.KLSX.SV.W.0049.000000T0000Z-110415T1900Z/
PIKE IL-PIKE MO-
143 PM CDT FRI APR 15 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL PIKE
COUNTY IN WEST CENTRAL ILLINOIS...AND NORTH CENTRAL PIKE COUNTY IN
NORTHEAST MISSOURI UNTIL 200 PM CDT...

AT 142 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
BOWLING GREEN...MOVING NORTH AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  LOUISIANA...PIKE...ASHBURN AND ROCKPORT.

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 3934 9100 3934 9126 3954 9131 3960 9120
      3961 9121 3961 9096
TIME...MOT...LOC 1844Z 180DEG 22KT 3940 9115
WIND...HAIL 60MPH 1.00IN

$$

CARNEY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 1:53 PM CDTSevere Thunderstorm WarningLSXPike35 min
Apr 15, 2:00 PM CDTSevere Thunderstorm WarningLSXLewis, Marion, Ralls45 min
Apr 15, 2:20 PM CDTSevere Thunderstorm WarningLSXFranklin, Saint Charles, Warren40 min
Apr 15, 2:23 PM CDTSevere Thunderstorm WarningLSXMarion, Ralls22 min
Apr 15, 2:52 PM CDTSevere Thunderstorm WarningLSXMarion, Ralls53 min
Apr 15, 2:54 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Lincoln, Pike, Saint Charles, Saint Louis and 1 more51 min
Apr 15, 3:32 PM CDTSevere Thunderstorm WarningLSXJefferson, Saint Louis43 min
Apr 15, 3:52 PM CDTSevere Thunderstorm WarningLSXMadison, Saint Francois38 min
Apr 15, 4:03 PM CDTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis, City of Saint Louis42 min
Apr 15, 4:21 PM CDTSevere Thunderstorm WarningLSXJefferson39 min
Apr 15, 4:43 PM CDTSevere Thunderstorm WarningLSXSaint Charles, Saint Louis, City of Saint Louis47 min
Apr 15, 4:08 PM CDTSevere Thunderstorm WarningLSXAdams18 min
Apr 15, 4:12 PM CDTSevere Thunderstorm WarningLSXCalhoun, Greene, Jersey, Macoupin, Pike48 min
Apr 15, 4:13 PM CDTSevere Thunderstorm WarningLSXMacoupin47 min
Apr 15, 4:54 PM CDTTornado WarningLSXMacoupin38 min
Apr 15, 4:56 PM CDTTornado WarningLSXMontgomery34 min
Apr 15, 5:10 PM CDTTornado WarningLSXMadison, Saint Clair35 min
Apr 15, 5:37 PM CDTSevere Thunderstorm WarningLSXClinton, Marion, Washington38 min
Apr 15, 6:05 PM CDTSevere Thunderstorm WarningLSXMacoupin, Montgomery40 min
Apr 15, 6:07 PM CDTSevere Thunderstorm WarningLSXClinton, Fayette, Marion53 min
Apr 15, 6:42 PM CDTSevere Thunderstorm WarningLSXFayette28 min

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.