Alert archive / Missouri / Tornado Warnings in 2013

Tornado Warning 22, NWS Springfield, MO

May 20, 2013Barry County, Stone County, Missouri

NWS Springfield, MO issued this tornado warning at May 20, 2013, 7:27 PM CDT for Barry County, Stone County, Missouri. It was in force for 33 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
May 20, 2013, 7:27 PM CDT (00:27 UTC)
Expired
May 20, 2013, 8:00 PM CDT
In force
33 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Barry County, MO, Stone County, MO

The radar

The Springfield radar (KSGF), 58 km from the middle of the area, began a volume at 00:29 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
May 20, 7:50 PM CDTTORNADO3 E Shell Knob, MOAN EF-1 TORNADO UPROOTED AND DAMAGED TREES ALONG ITS 1.4 MILE LONG PATH WITH MAXIMUM WINDS OF 110 MPH AND PATH WIDTH OF 200 YARDS.
May 20, 7:59 PM CDTTSTM WND GST 60Branson West, MO
May 20, 8:05 PM CDTTSTM WND DMGReeds Spring, MONUMEROUS TREES REPORTED DOWN IN AND NEAR REEDS SPRING. TREES ALSO REPORTED DOWN ALONG HIGHWAY 413.
May 20, 8:05 PM CDTTORNADO2 N Reeds Spring, MOAN EF-0 TORNADO 100 YARDS WIDE AND 0.6 MILES LONG CAUSED SOME TREE DAMAGE ALONG ITS PATH. ESTIMATED WIND SPEEDS WERE 80 TO 85 MPH.
May 20, 8:05 PM CDTTORNADO3 Nnw Reeds Spring, MOAN EF-1 TORNADO 100 YARDS WIDE AND 1.4 MILES LONG UPROOTED TREES ALONG ITS PATH. ESTIMATED WIND SPEEDS WERE AROUND 90 MPH.

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
May 20, 12:46 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 0.5 hours before the alert went out and 20 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, Springfield, MO at 00:00Z on 2013-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2135 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, Springfield, MO at 00:00Z on 2013-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 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
2135 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
780 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
265 m²/s²
Significant tornado parameter
3.2
Supercell composite
13.9

Open this sounding in Storm Lab

The text

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

074 
WFUS53 KSGF 210027
TORSGF
MOC009-209-210100-
/O.NEW.KSGF.TO.W.0022.130521T0027Z-130521T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
727 PM CDT MON MAY 20 2013

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* TORNADO WARNING FOR...
  BARRY COUNTY IN SOUTHWEST MISSOURI...
  STONE COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 800 PM CDT

* AT 714 PM CDT...A SEVERE SQUALL LINE CAPABLE OF PRODUCING TORNADOES
  THAT MAY NOT BE VISIBLE DUE TO HEAVY RAIN WAS LOCATED OVER         
  NORTHEAST BENTON COUNTY ARKANSAS...AND MOVING NORTHEAST AT 55 MPH.

  HAZARD...DEVELOPING TORNADO.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED.
           SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL
           OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.
           EXTENSIVE TREE DAMAGE IS LIKELY.

* LOCATIONS IMPACTED INCLUDE...
  BRANSON WEST...CASSVILLE...CRANE...EXETER...GALENA...INDIAN
  POINT...KIMBERLING CITY...PURDY...REEDS SPRING...SELIGMAN AND
  WASHBURN.

THIS STORM WILL MOVE DIRECTLY OVER TABLE ROCK LAKE.

THIS WARNING ALSO INCLUDES ROARING RIVER STATE PARK AND TABLE ROCK
LAKE. 

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.

IF ON OR NEAR TABLE ROCK LAKE...GET AWAY FROM THE WATER AND MOVE TO 
SHELTER. TORNADOES CAN MOVE ACROSS WATER. IF YOU CAN HEAR 
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. BOATS CAN 
BE SWAMPED BY LARGE CAPSIZING WAVES CAUSED BY A TORNADO...EVEN ON 
SMALL BODIES OF WATER. MOVE QUICKLY INTO DOCK AND SEEK SAFE SHELTER 
NOW.

&&

LAT...LON 3649 9407 3666 9407 3693 9389 3692 9362
      3700 9360 3699 9334 3682 9334 3682 9331
      3650 9331
TIME...MOT...LOC 0026Z 232DEG 57KT 3660 9403 3648 9393
          3636 9388 3626 9387

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

CRAMER
2 follow-up statements
530 
WWUS53 KSGF 210055
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
755 PM CDT MON MAY 20 2013

MOC009-209-210100-
/O.CON.KSGF.TO.W.0022.000000T0000Z-130521T0100Z/
BARRY MO-STONE MO-
755 PM CDT MON MAY 20 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR STONE AND EASTERN BARRY
COUNTIES UNTIL 800 PM CDT...

AT 750 PM CDT...A SEVERE SQUALL LINE CAPABLE OF PRODUCING TORNADOES
THAT MAY NOT BE VISIBLE DUE TO HEAVY RAIN WAS LOCATED ALONG A LINE 
EXTENDING CASSVILLE TO BLUE EYE...AND MOVING NORTHEAST AT 55 MPH.

HAZARD...DEVELOPING TORNADO.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED.
         SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL
         OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS.
         EXTENSIVE TREE DAMAGE IS LIKELY.

LOCATIONS IMPACTED INCLUDE...
BRANSON WEST...CRANE...GALENA...INDIAN POINT...KIMBERLING CITY AND
REEDS SPRING.

THIS WARNING ALSO INCLUDES ROARING RIVER STATE PARK AND TABLE ROCK
LAKE. 

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.

IF ON OR NEAR TABLE ROCK LAKE...GET AWAY FROM THE WATER AND MOVE TO 
SHELTER. TORNADOES CAN MOVE ACROSS WATER. IF YOU CAN HEAR 
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. BOATS CAN 
BE SWAMPED BY LARGE CAPSIZING WAVES CAUSED BY A TORNADO...EVEN ON 
SMALL BODIES OF WATER. MOVE INTO DOCK AND SEEK SAFE SHELTER NOW.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT MONDAY EVENING
FOR SOUTHEAST KANSAS AND SOUTHERN MISSOURI. A TORNADO WATCH ALSO
REMAINS IN EFFECT UNTIL 300 AM CDT TUESDAY MORNING FOR SOUTHERN
MISSOURI.

LAT...LON 3655 9367 3663 9382 3667 9383 3675 9381
      3692 9361 3700 9360 3699 9334 3683 9334
      3682 9334 3682 9331 3650 9332 3649 9341
TIME...MOT...LOC 0055Z 232DEG 57KT 3676 9367 3670 9350
          3664 9343 3656 9337

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

CRAMER
297 
WWUS53 KSGF 210058
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
758 PM CDT MON MAY 20 2013

MOC009-209-210108-
/O.EXP.KSGF.TO.W.0022.000000T0000Z-130521T0100Z/
BARRY MO-STONE MO-
758 PM CDT MON MAY 20 2013

...THE TORNADO WARNING FOR STONE AND EASTERN BARRY COUNTIES WILL
EXPIRE AT 800 PM CDT...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY.  HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THESE
THUNDERSTORMS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT MONDAY EVENING
FOR SOUTHEAST KANSAS AND SOUTHERN MISSOURI. A TORNADO WATCH ALSO
REMAINS IN EFFECT UNTIL 300 AM CDT TUESDAY MORNING FOR SOUTHERN
MISSOURI.

LAT...LON 3655 9367 3663 9382 3667 9383 3675 9381
      3692 9361 3700 9360 3699 9334 3683 9334
      3682 9334 3682 9331 3650 9332 3649 9341
TIME...MOT...LOC 0058Z 232DEG 57KT 3678 9362 3672 9345
          3666 9338 3658 9332

$$

CRAMER

The office that day

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

IssuedProductOfficeCountiesLasted
May 20, 7:03 PM CDTTornado WarningSGFDallas, Hickory, Polk27 min
May 20, 7:08 PM CDTTornado WarningSGFDallas, Polk37 min
May 20, 7:24 PM CDTSevere Thunderstorm WarningSGFBenton, Camden, Hickory, Miller, Morgan51 min
May 20, 7:28 PM CDTSpecial Weather StatementSGFChristian, Stone, Taney, Webster62 min
May 20, 7:49 PM CDTSevere Thunderstorm WarningSGFDade, Greene, Lawrence41 min
May 20, 7:50 PM CDTSevere Thunderstorm WarningSGFCamden, Miller, Morgan40 min
May 20, 8:04 PM CDTSevere Thunderstorm WarningSGFChristian, Stone, Taney41 min
May 20, 8:09 PM CDTSevere Thunderstorm WarningSGFCamden, Laclede, Maries, Miller, Pulaski, Texas and 1 more51 min
May 20, 8:11 PM CDTSevere Thunderstorm WarningSGFWebster, Wright49 min
May 20, 8:13 PM CDTSevere Thunderstorm WarningSGFTaney32 min
May 20, 8:25 PM CDTSevere Thunderstorm WarningSGFDouglas, Ozark65 min
May 20, 8:31 PM CDTSevere Thunderstorm WarningSGFDent, Laclede, Maries, Phelps, Pulaski59 min
May 20, 8:38 PM CDTFlash Flood WarningSGFWebster6 hr
May 20, 8:59 PM CDTSevere Thunderstorm WarningSGFHowell, Texas61 min
May 20, 9:04 PM CDTSevere Thunderstorm WarningSGFWright41 min
May 20, 9:44 PM CDTSevere Thunderstorm WarningSGFShannon61 min
May 20, 9:46 PM CDTSevere Thunderstorm WarningSGFDent29 min
May 20, 10:00 PM CDTSevere Thunderstorm WarningSGFOzark45 min
May 20, 10:32 PM CDTSevere Thunderstorm WarningSGFHowell43 min
May 20, 10:51 PM CDTSevere Thunderstorm WarningSGFHowell39 min
May 20, 11:10 PM CDTSevere Thunderstorm WarningSGFOregon, Shannon65 min
May 21, 12:29 AM CDTSpecial Weather StatementSGFNewton31 min

Nearby

Tornado Warnings in Missouri, 2013Every tornado warning in 2013Tornadoes in 2013

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.