Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 90, NWS Springfield, MO

April 30, 2012Crawford County, Kansas; Barton County, Vernon County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 30, 2012, 12:46 AM CDT for Crawford County, Kansas; Barton County, Vernon County, Missouri. It was in force for 16 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 30, 2012, 12:46 AM CDT (05:46 UTC)
Expired
Apr 30, 2012, 1:02 AM CDT
In force
16 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Crawford County, KS, Barton County, MO, Vernon County, MO

The radar

The Springfield radar (KSGF), 105 km from the middle of the area, began a volume at 05:46 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 29, 8:04 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.8 hours before the alert went out and 91 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 2012-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 913 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 2012-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 177 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
913 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
985 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
177 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.3

Open this sounding in Storm Lab

The text

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

673 
WUUS53 KSGF 300546
SVRSGF
KSC037-MOC011-217-300630-
/O.NEW.KSGF.SV.W.0090.120430T0546Z-120430T0630Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1246 AM CDT MON APR 30 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN CRAWFORD COUNTY IN SOUTHEAST KANSAS...
  BARTON COUNTY IN SOUTHWEST MISSOURI...
  EXTREME SOUTHEASTERN VERNON COUNTY IN WEST CENTRAL MISSOURI...

* UNTIL 130 AM CDT

* AT 1242 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
  PITTSBURG...AND MOVING EAST AT 40 MPH.

  HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
           DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.

* LOCATIONS IMPACTED INCLUDE...
  FRONTENAC...ARMA...VERDELLA...LAMAR...MULBERRY...MINDENMINES...
  LIBERAL...SHELDON...GOLDEN CITY...FRANKLIN...OPOLIS...CROWEBURG...
  YALE...BURGESS...OSKALOOSA...NASHVILLE...HANNON...IANTHA...OAKTON
  AND BOSTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3765 9461 3766 9407 3735 9409 3737 9462
      3734 9462 3734 9476 3734 9478 3747 9480
TIME...MOT...LOC 0545Z 260DEG 36KT 3739 9470

HAIL...0.75IN
WIND...60 MPH

$$

KARDELL
1 follow-up statement
948 
WWUS53 KSGF 300602
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
102 AM CDT MON APR 30 2012

KSC037-MOC011-217-300612-
/O.CAN.KSGF.SV.W.0090.000000T0000Z-120430T0630Z/
CRAWFORD KS-BARTON MO-VERNON MO-
102 AM CDT MON APR 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR EXTREME SOUTHEASTERN VERNON...
BARTON AND SOUTHEASTERN CRAWFORD COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 3765 9461 3766 9407 3735 9409 3737 9462
      3734 9462 3734 9476 3734 9478 3747 9480
TIME...MOT...LOC 0602Z 260DEG 36KT 3742 9449

$$

KARDELL

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 9:03 PM CDTSevere Thunderstorm WarningSGFBourbon57 min
Apr 29, 9:47 PM CDTFlash Flood WarningSGFBourbon, Crawford9 hr
Apr 29, 11:17 PM CDTSevere Thunderstorm WarningSGFCherokee, Crawford43 min
Apr 29, 11:57 PM CDTSevere Thunderstorm WarningSGFBourbon, Cherokee, Crawford48 min
Apr 30, 12:05 AM CDTSevere Thunderstorm WarningSGFCherokee, Crawford25 min
Apr 30, 12:47 AM CDTFlash Flood WarningSGFCherokee, Crawford6 hr
Apr 30, 12:57 AM CDTSpecial Weather StatementSGFCherokee48 min
Apr 30, 6:54 AM CDTAreal Flood WarningSGFBourbon, Cherokee, Crawford12 hr
Apr 30, 9:36 AM CDTRiver Flood WarningSGFBourbon66 hr
Apr 29, 8:08 PM CDTRiver Flood WarningSGFVernon6 days
Apr 29, 9:50 PM CDTRiver Flood WarningSGFCedar3 days
Apr 30, 1:11 AM CDTSpecial Weather StatementSGFCedar49 min
Apr 30, 2:55 AM CDTAreal Flood AdvisorySGFBenton, Camden, Hickory, Miller, Morgan16 hr
Apr 30, 6:47 AM CDTRiver Flood WarningSGFVernon5 days
Apr 30, 9:36 AM CDTRiver Flood WarningSGFBates, Vernon48 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2012Severe Thunderstorm Warnings in Kansas, 2012Every severe thunderstorm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.