Alert archive / Missouri / Tornado Warnings in 2014

Tornado Warning 20, NWS St. Louis, MO

May 10, 2014Pike County, Ralls County, Missouri

NWS St. Louis, MO issued this tornado warning at May 10, 2014, 8:12 PM CDT for Pike County, Ralls County, Missouri. It was in force for 33 min. 1 report 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: May 10, 2014, 8:12 PM CDT (01:12 UTC)
Expired: May 10, 2014, 8:45 PM CDT
In force: 33 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Pike County, MO, Ralls County, MO

The radar

The St Louis radar (KLSX), 102 km from the middle of the area, began a volume at 01:14 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
May 10, 8:23 PM CDT	HAIL 0.88	1 N Center, MO	NICKEL SIZED HAIL AND STRONG ROTATION REPORTED BY THE CENTER FIRE DEPARTMENT.

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
May 10, 5:16 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.2 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3064 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 146 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.

007 
WFUS53 KLSX 110112
TORLSX
MOC163-173-110145-
/O.NEW.KLSX.TO.W.0020.140511T0112Z-140511T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
812 PM CDT SAT MAY 10 2014

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL PIKE COUNTY IN NORTHEAST MISSOURI...
  SOUTHERN RALLS COUNTY IN NORTHEAST MISSOURI...

* UNTIL 845 PM CDT

* AT 810 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR PERRY...AND MOVING SOUTHEAST AT 30 MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED ROTATION.

  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.

* THIS DANGEROUS STORM WILL BE NEAR...
  SPENCERBURG AROUND 830 PM CDT.
  CURRYVILLE AROUND 840 PM CDT.

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 3946 9125 3925 9138 3927 9143 3931 9143
      3932 9145 3932 9155 3939 9172 3941 9171
      3954 9160
TIME...MOT...LOC 0112Z 294DEG 27KT 3944 9159

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

CARNEY

2 follow-up statements

805 
WWUS53 KLSX 110126
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
826 PM CDT SAT MAY 10 2014

MOC163-173-110145-
/O.CON.KLSX.TO.W.0020.000000T0000Z-140511T0145Z/
PIKE MO-RALLS MO-
826 PM CDT SAT MAY 10 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN RALLS AND WEST
CENTRAL PIKE COUNTIES IN NORTHEAST MISSOURI UNTIL 845 PM CDT...

AT 823 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR SPENCERBURG...AND MOVING SOUTHEAST AT 40 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

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.

THIS DANGEROUS STORM WILL BE NEAR...
  CURRYVILLE AROUND 835 PM CDT.

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 3946 9125 3925 9138 3927 9143 3931 9143
      3932 9145 3932 9155 3939 9172 3941 9171
      3954 9160
TIME...MOT...LOC 0126Z 299DEG 35KT 3941 9141

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

CARNEY

292 
WWUS53 KLSX 110144
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
844 PM CDT SAT MAY 10 2014

MOC163-173-110154-
/O.EXP.KLSX.TO.W.0020.000000T0000Z-140511T0145Z/
PIKE MO-RALLS MO-
844 PM CDT SAT MAY 10 2014

...THE TORNADO WARNING FOR SOUTHERN RALLS AND WEST CENTRAL PIKE
COUNTIES IN NORTHEAST MISSOURI WILL EXPIRE AT 845 PM CDT...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT 
FOR THE AREA.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT.

LAT...LON 3946 9125 3925 9138 3927 9143 3931 9143
      3932 9145 3932 9155 3939 9172 3941 9171
      3954 9160
TIME...MOT...LOC 0144Z 299DEG 35KT 3932 9121

$$

CARNEY

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 7:06 PM CDT	Tornado Warning	LSX	Monroe, Shelby	24 min
May 10, 7:27 PM CDT	Tornado Warning	LSX	Marion, Monroe, Shelby	33 min
May 10, 7:57 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Pike, Ralls	48 min
May 10, 8:33 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Moniteau	42 min
May 10, 8:40 PM CDT	Severe Thunderstorm Warning	LSX	Pike, Ralls	50 min
May 10, 8:47 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Monroe	43 min
May 10, 8:50 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Monroe, Ralls	40 min
May 10, 9:08 PM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Callaway	52 min
May 10, 9:20 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Pike	40 min
May 10, 9:39 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Osage	51 min
May 10, 9:55 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Pike	50 min
May 10, 10:49 PM CDT	Severe Thunderstorm Warning	LSX	Callaway	41 min
May 10, 11:05 PM CDT	Severe Thunderstorm Warning	LSX	Montgomery, Warren	55 min
May 10, 11:33 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Montgomery	42 min
May 11, 12:08 AM CDT	Severe Thunderstorm Warning	LSX	Warren	52 min
May 11, 12:13 AM CDT	Severe Thunderstorm Warning	LSX	Franklin, Gasconade, Montgomery, Warren	47 min
May 11, 12:32 AM CDT	Severe Thunderstorm Warning	LSX	Saint Charles	43 min
May 11, 12:55 AM CDT	Severe Thunderstorm Warning	LSX	Warren	50 min
May 11, 1:17 AM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Saint Louis	43 min
May 11, 1:19 AM CDT	Severe Thunderstorm Warning	LSX	Saint Charles	41 min
May 11, 11:12 AM CDT	River Flood Warning	LSX	Lincoln	45 hr
May 11, 2:05 PM CDT	River Flood Warning	LSX	Lincoln	18 days

Nearby

Tornado Warnings in Missouri, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.