Alert archive / Missouri / Tornado Warnings in 2011

Tornado Warning 47, NWS Kansas City, MO

June 14, 2011Linn County, Macon County, Missouri

NWS Kansas City, MO issued this tornado warning at Jun 14, 2011, 10:36 PM CDT for Linn County, Macon County, Missouri. It was in force for 24 min. 6 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 14, 2011, 10:36 PM CDT (03:36 UTC)
Expired
Jun 14, 2011, 11:00 PM CDT
In force
24 min
Issued by
NWS Kansas City, MO
Area
Storm-based polygon

Counties Linn County, MO, Macon County, MO

The radar

The Pleasant Hill radar (KEAX), 175 km from the middle of the area, began a volume at 03:36 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 14, 10:39 PM CDTTORNADO12 Nne Brookfield, MO
Jun 14, 10:45 PM CDTTORNADO2 W New Boston, MOLARGE CONE SHAPED TORNADO ON THE GROUND
Jun 14, 10:53 PM CDTTSTM WND DMG1 W New Boston, MOSEVERAL TREES BLOCKING THE HIGHWAY 11
Jun 14, 10:58 PM CDTTORNADO2 W Goldsberry, MOTORNADO ON THE GROUND FOR 3-4 MINUTES
Jun 14, 11:02 PM CDTFUNNEL CLOUD2 Ne New Boston, MO
Jun 14, 11:03 PM CDTHAIL 1.752 Nw Goldsberry, MO

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 14, 3:53 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 3.6 hours before the alert went out and 261 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, Topeka, KS at 00:00Z on 2011-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2058 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, Topeka, KS at 00:00Z on 2011-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
2058 J/kg
Mixed-layer CIN
-182 J/kg
Mixed-layer LCL
1467 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
2 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.

088 
WFUS53 KEAX 150336
TOREAX
MOC115-121-150400-
/O.NEW.KEAX.TO.W.0047.110615T0336Z-110615T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1036 PM CDT TUE JUN 14 2011

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN LINN COUNTY IN NORTH CENTRAL MISSOURI...
  NORTHWESTERN MACON COUNTY IN NORTH CENTRAL MISSOURI...

* UNTIL 1100 PM CDT

* AT 1032 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 11 MILES NORTHEAST OF BROOKFIELD...AND MOVING
  NORTHEAST AT 25 MPH.  IN ADDITION TO A TORNADO...PING PONG BALL
  SIZE HAIL IS EXPECTED WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  NEW BOSTON AND ETHEL.

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 3989 9273 3986 9300 3995 9306 4004 9283
      4004 9276
TIME...MOT...LOC 0336Z 247DEG 24KT 3993 9296
HAIL 1.50IN

$$

ACH/DD
2 follow-up statements
528 
WWUS53 KEAX 150346
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1046 PM CDT TUE JUN 14 2011

MOC115-121-150400-
/O.CON.KEAX.TO.W.0047.000000T0000Z-110615T0400Z/
LINN MO-MACON MO-
1046 PM CDT TUE JUN 14 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN MACON AND
NORTHEASTERN LINN COUNTIES IN NORTH CENTRAL MISSOURI UNTIL 1100 PM
CDT...

AT 1041 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO.  THIS 
TORNADO WAS LOCATED 9 MILES NORTH NORTHEAST OF BROOKFIELD...MOVING 
NORTHEAST AT 30 MPH.  IN ADDITION TO A TORNADO...PING PONG BALL SIZE 
HAIL IS EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  NEW BOSTON AND ETHEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. 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 3988 9297 3996 9303 4004 9283 4004 9276
      3989 9273
TIME...MOT...LOC 0345Z 247DEG 24KT 3995 9289
HAIL 1.50IN

$$

ACH/DD
785 
WWUS53 KEAX 150352
SVSEAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1052 PM CDT TUE JUN 14 2011

MOC115-121-150400-
/O.CON.KEAX.TO.W.0047.000000T0000Z-110615T0400Z/
LINN MO-MACON MO-
1052 PM CDT TUE JUN 14 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN MACON AND
NORTHEASTERN LINN COUNTIES IN NORTH CENTRAL MISSOURI UNTIL 1100 PM
CDT...

AT 1045 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A LARGE CONE 
TORNADO NEAR JOHNSTOWN.  THIS TORNADO CURRENTLY IS LOCATED JUST WEST 
OF NEW BOSTON...MOVING NORTHEAST AT 30 MPH.  IN ADDITION TO A 
TORNADO...PING PONG BALL SIZE HAIL IS EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  NEW BOSTON AND ETHEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. 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 3988 9291 3997 9299 4004 9283 4004 9276
      3989 9273
TIME...MOT...LOC 0350Z 247DEG 24KT 3996 9285
HAIL 1.50IN

$$

ACH/DD

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 14, 7:05 PM CDTSpecial Weather StatementEAXNodaway40 min
Jun 14, 8:37 PM CDTSpecial Weather StatementEAXGrundy23 min
Jun 14, 8:38 PM CDTSpecial Weather StatementEAXLivingston37 min
Jun 14, 9:06 PM CDTSevere Thunderstorm WarningEAXCarroll, Grundy, Linn, Livingston, Sullivan24 min
Jun 14, 9:29 PM CDTSevere Thunderstorm WarningEAXChariton, Grundy, Linn, Livingston, Sullivan46 min
Jun 14, 9:34 PM CDTSpecial Weather StatementEAXAdair26 min
Jun 14, 9:51 PM CDTSevere Thunderstorm WarningEAXPutnam, Schuyler, Sullivan24 min
Jun 14, 10:01 PM CDTSpecial Weather StatementEAXAdair29 min
Jun 14, 10:15 PM CDTSevere Thunderstorm WarningEAXPutnam, Schuyler15 min
Jun 14, 10:17 PM CDTSpecial Weather StatementEAXLinn43 min
Jun 14, 10:27 PM CDTSevere Thunderstorm WarningEAXAdair, Linn, Macon, Sullivan33 min
Jun 14, 10:31 PM CDTAreal Flood AdvisoryEAXGrundy, Linn, Livingston, Sullivan4 hr
Jun 14, 10:52 PM CDTAreal Flood AdvisoryEAXPutnam, Schuyler4 hr
Jun 14, 10:59 PM CDTTornado WarningEAXAdair, Macon18 min
Jun 14, 11:08 PM CDTSpecial Weather StatementEAXMercer37 min
Jun 15, 1:03 AM CDTSevere Thunderstorm WarningEAXSchuyler27 min
Jun 15, 11:40 AM CDTAreal Flood AdvisoryEAXAtchison24 hr

Nearby

Tornado Warnings in Missouri, 2011Every tornado warning in 2011Tornadoes 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.