Alert archive / Missouri / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 252, NWS St. Louis, MO

June 9, 20114 counties in Missouri; Adams County, Pike County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 9, 2011, 5:09 PM CDT for 4 counties in Missouri; Adams County, Pike County, Illinois. It was in force for 51 min. 16 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 9, 2011, 5:09 PM CDT (22:09 UTC)
Expired
Jun 9, 2011, 6:00 PM CDT
In force
51 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

Counties Adams County, IL, Pike County, IL, Marion County, MO, Monroe County, MO, Ralls County, MO, Shelby County, MO

The radar

The St Louis radar (KLSX), 143 km from the middle of the area, began a volume at 22:12 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
Jun 9, 5:17 PM CDTHAIL 0.751 Nw Emden, MOSTORM ACCOMPANIED BY ESTIMATED 35-40 MPH WINDS.
Jun 9, 5:27 PM CDTHAIL 0.58 N Monroe City, MO
Jun 9, 5:58 PM CDTHAIL 0.25Palmyra, MOHAIL FELL IN WESTERN PORTION OF PALMYRA.
Jun 9, 6:01 PM CDTHAIL 0.887 W Hannibal, MOHAIL COVERING GROUND AT US 24 AND US 36 INTERSECTION.
Jun 9, 6:02 PM CDTHAIL 0.25Hannibal, MOHAIL AT THE INTERSECTION OF HIGHWAYS 36 AND MM JUST WEST OF HANNIBAL MISSOURI.
Jun 9, 6:04 PM CDTHAIL 0.75 W Hannibal, MO
Jun 9, 6:06 PM CDTHAIL 1.254 Ne Rensselaer, MOHAIL LASTED 5 MINUTES.
Jun 9, 6:07 PM CDTHAIL 1.55 Sw Hannibal, MO
Jun 9, 6:08 PM CDTHAIL 0.881 Ssw Hannibal, MOAT HUCKLEBERRY PARK.
Jun 9, 6:09 PM CDTHAIL 13 Sw Hannibal, MO
Jun 9, 6:10 PM CDTTSTM WND DMG2 S Hannibal, MOBILLBOARDS DOWN ON US 61.
Jun 9, 6:10 PM CDTTSTM WND DMG3 Ese Rensselaer, MOTREES BLOWN DOWN AND BLOCKING HIGHWAY HH EAST SOUTHEAST OF RENSSELAER.
Jun 9, 6:10 PM CDTTSTM WND DMG3 E Spaulding, MO54000 BLOCK OF HIGHWAY M REPORTED NORTH SIDE OF A 200 X 60 SHED HAS BEEN DAMAGED. APPROXIMATELY 30-40 FEET OF THE NORTH SIDE OF THE METAL STRUCTURE HAS BEEN TORN OFF.
Jun 9, 6:10 PM CDTTSTM WND DMG3 W Hannibal, MO4 FOOT DIAMTER TREE DOWN ON PARIS GRAVEL ROAD.
Jun 9, 6:10 PM CDTTSTM WND DMG4 Ne Spaulding, MOGARAGE BLOWN DOWN FROM A RESIDENCE.
Jun 9, 6:10 PM CDTTSTM WND DMG4 Ne Spaulding, MO54000 BLOCK OF HIGHWAY M REPORTED NORTH SIDE OF A 200 X 60 SHED HAS BEEN DAMAGED. APPROXIMATELY 30-40 FEET OF THE NORTH SIDE OF THE METAL STRUCTURE HAS BEEN TORN OFF.

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
Jun 9, 4:43 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.2 hours before the alert went out and 221 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, Davenport, at 12:00Z on 2011-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 121 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2011-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -114 square meters per square second.193958Sfc1 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
121 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
1420 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
-114 m²/s²
0-3 km storm-relative helicity
-95 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

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

819 
WUUS53 KLSX 092209
SVRLSX
ILC001-149-MOC127-137-173-205-092300-
/O.NEW.KLSX.SV.W.0252.110609T2209Z-110609T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
509 PM CDT THU JUN 9 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN ADAMS COUNTY IN WEST CENTRAL ILLINOIS...
  NORTHWESTERN PIKE COUNTY IN WEST CENTRAL ILLINOIS...
  MARION COUNTY IN NORTHEAST MISSOURI...
  NORTHEASTERN MONROE COUNTY IN NORTHEAST MISSOURI...
  NORTHWESTERN RALLS COUNTY IN NORTHEAST MISSOURI...
  SOUTHEASTERN SHELBY COUNTY IN NORTHEAST MISSOURI...

* UNTIL 600 PM CDT

* AT 505 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL
  SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM 5 MILES SOUTH OF EWING TO
  EMDEN TO 5 MILES EAST OF SHELBINA...AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MONROE CITY...PALMYRA...QUINCY...HANNIBAL...PHILADELPHIA...
  WARREN...RENSSELAER...SPAULDING...FALL CREEK...PAYSON...
  HUNNEWELL...TAYLOR...MARBLEHEAD...BURTON...SEEHORN...ADAMS AND
  ILASCO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

THESE STORMS HAVE EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS 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 3995 9112 3972 9124 3955 9150 3966 9207
      3979 9192 3995 9183
TIME...MOT...LOC 2208Z 278DEG 22KT 3993 9172 3978 9179
          3970 9192
WIND...HAIL 60MPH 1.50IN

$$

BRITT
4 follow-up statements
618 
WWUS53 KLSX 092228
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
528 PM CDT THU JUN 9 2011

MOC137-205-092237-
/O.CAN.KLSX.SV.W.0252.000000T0000Z-110609T2300Z/
MONROE MO-SHELBY MO-
528 PM CDT THU JUN 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SHELBY AND
NORTHEASTERN MONROE COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE 
WARNED AREA.  ADDITIONAL STRONG THUNDERSTORMS ARE POSSIBLE THIS 
EVENING...AND A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 
MIDNIGHT CDT.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.

LAT...LON 3995 9112 3972 9124 3955 9150 3962 9172
      3966 9172 3966 9184 3995 9183
TIME...MOT...LOC 2227Z 278DEG 29KT 3988 9163 3974 9159
          3965 9167

$$

ILC001-149-MOC127-173-092300-
/O.CON.KLSX.SV.W.0252.000000T0000Z-110609T2300Z/
PIKE IL-ADAMS IL-MARION MO-RALLS MO-
528 PM CDT THU JUN 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
ADAMS AND NORTHWESTERN PIKE COUNTIES IN WEST CENTRAL ILLINOIS...AND
NORTHWESTERN RALLS AND MARION COUNTIES IN NORTHEAST MISSOURI UNTIL
600 PM CDT...

AT 526 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 6 MILES SOUTH OF MAYWOOD TO 5
MILES NORTHWEST OF RENSSELAER TO MONROE CITY...MOVING EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  PALMYRA...HANNIBAL...QUINCY...RENSSELAER...SPAULDING...FALL
  CREEK...PAYSON...TAYLOR...MARBLEHEAD...SEEHORN...BURTON AND ADAMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.

&&

LAT...LON 3995 9112 3972 9124 3955 9150 3962 9172
      3966 9172 3966 9184 3995 9183
TIME...MOT...LOC 2227Z 278DEG 29KT 3988 9163 3974 9159
          3965 9167
WIND...HAIL 60MPH 1.00IN

$$

BRITT
687 
WWUS53 KLSX 092240
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
540 PM CDT THU JUN 9 2011

ILC001-149-MOC127-173-092300-
/O.CON.KLSX.SV.W.0252.000000T0000Z-110609T2300Z/
PIKE IL-ADAMS IL-MARION MO-RALLS MO-
540 PM CDT THU JUN 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
ADAMS AND NORTHWESTERN PIKE COUNTIES IN WEST CENTRAL ILLINOIS...AND
NORTHWESTERN RALLS AND MARION COUNTIES IN NORTHEAST MISSOURI UNTIL
600 PM CDT...

AT 536 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
NORTHWEST OF RENSSELAER...OR 7 MILES NORTHEAST OF MONROE CITY...
MOVING EAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  PALMYRA...HANNIBAL...QUINCY...RENSSELAER...SPAULDING...FALL
  CREEK...PAYSON...TAYLOR...MARBLEHEAD...SEEHORN...BURTON AND ADAMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS 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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.

&&

LAT...LON 3995 9112 3972 9124 3955 9150 3962 9172
      3966 9172 3968 9180 3995 9163
TIME...MOT...LOC 2240Z 282DEG 18KT 3972 9161
WIND...HAIL 60MPH 1.00IN

$$

BRITT
578 
WWUS53 KLSX 092247
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
547 PM CDT THU JUN 9 2011

ILC001-149-MOC127-173-092300-
/O.CON.KLSX.SV.W.0252.000000T0000Z-110609T2300Z/
PIKE IL-ADAMS IL-MARION MO-RALLS MO-
547 PM CDT THU JUN 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
ADAMS AND NORTHWESTERN PIKE COUNTIES IN WEST CENTRAL ILLINOIS...AND
NORTHWESTERN RALLS AND SOUTHEASTERN MARION COUNTIES IN NORTHEAST
MISSOURI UNTIL 600 PM CDT...

AT 546 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
RENSSELAER...OR 6 MILES SOUTHWEST OF PALMYRA...MOVING EAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  PALMYRA...HANNIBAL...RENSSELAER...SPAULDING...FALL CREEK...PAYSON
  AND SEEHORN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS EXHIBITED SOME WEAK ROTATION. TORNADOES CAN DEVELOP
QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS 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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.

&&

LAT...LON 3984 9118 3972 9124 3955 9150 3962 9171
      3963 9172 3973 9171 3984 9164
TIME...MOT...LOC 2248Z 282DEG 18KT 3972 9156
WIND...HAIL 60MPH 1.00IN

$$

BRITT
245 
WWUS53 KLSX 092257
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
557 PM CDT THU JUN 9 2011

ILC001-149-MOC127-173-092306-
/O.EXP.KLSX.SV.W.0252.000000T0000Z-110609T2300Z/
PIKE IL-ADAMS IL-MARION MO-RALLS MO-
557 PM CDT THU JUN 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN ADAMS AND
NORTHWESTERN PIKE COUNTIES IN WEST CENTRAL ILLINOIS...AND NORTHERN 
RALLS AND SOUTHEASTERN MARION COUNTIES IN NORTHEAST MISSOURI HAS 
BEEN REISSUED...

PLEASE REFER TO THAT BULLETIN FOR THE LATEST SEVERE WEATHER
INFORMATION.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.

LAT...LON 3984 9118 3972 9124 3955 9150 3962 9171
      3963 9172 3973 9171 3984 9164
TIME...MOT...LOC 2256Z 282DEG 18KT 3971 9151

$$

BRITT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 3:41 PM CDTSevere Thunderstorm WarningLSXKnox, Shelby64 min
Jun 9, 4:06 PM CDTSevere Thunderstorm WarningLSXShelby39 min
Jun 9, 4:36 PM CDTSevere Thunderstorm WarningLSXLewis, Marion, Shelby39 min
Jun 9, 5:54 PM CDTSevere Thunderstorm WarningLSXMarion, Ralls51 min
Jun 9, 6:26 PM CDTSevere Thunderstorm WarningLSXPike, Ralls30 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.