Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 86, NWS Springfield, MO

April 29, 2012Vernon County, Missouri; Bourbon County, Kansas

NWS Springfield, MO issued this severe thunderstorm warning at Apr 29, 2012, 9:03 PM CDT for Vernon County, Missouri; Bourbon County, Kansas. It was in force for 57 min. 2 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
Apr 29, 2012, 9:03 PM CDT (02:03 UTC)
Expired
Apr 29, 2012, 10:00 PM CDT
In force
57 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Bourbon County, KS, Vernon County, MO

The radar

The Pleasant Hill radar (KEAX), 104 km from the middle of the area, began a volume at 02:05 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
Apr 29, 9:08 PM CDTHAIL 13 Ne Hiattville, KSTIME ESTIMATED BASED ON RADAR.
Apr 29, 9:25 PM CDTHAIL 0.75Fort Scott, KS

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
Apr 29, 8:04 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.1 hours before the alert went out and 124 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°0°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.

527 
WUUS53 KSGF 300203
SVRSGF
KSC011-MOC217-300300-
/O.NEW.KSGF.SV.W.0086.120430T0203Z-120430T0300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
903 PM CDT SUN APR 29 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BOURBON COUNTY IN SOUTHEAST KANSAS...  
  VERNON COUNTY IN WEST CENTRAL MISSOURI...

* UNTIL 1000 PM CDT

* AT 858 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES SOUTHWEST
  OF FORT SCOTT...AND MOVING NORTHEAST AT 35 MPH.

  HAZARD...QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS.

* LOCATIONS IMPACTED INCLUDE...
  FORT SCOTT...NEVADA...WALKER...SCHELL CITY...GARLAND...HAMMOND...
  BRONAUGH...RICHARDS...DEERFIELD...MOUNDVILLE...STOTESBURY...MILO...
  METZ...HORTON AND HARWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3779 9494 3807 9452 3806 9427 3804 9423
      3806 9421 3805 9419 3806 9413 3804 9406
      3783 9407 3775 9427 3766 9462 3767 9462
      3768 9490 3771 9495
TIME...MOT...LOC 0202Z 243DEG 28KT 3778 9477

HAIL...1.00IN
WIND...<50 MPH

$$

CRAMER
2 follow-up statements
410 
WWUS53 KSGF 300219
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
919 PM CDT SUN APR 29 2012

KSC011-MOC217-300300-
/O.CON.KSGF.SV.W.0086.000000T0000Z-120430T0300Z/
BOURBON KS-VERNON MO-
919 PM CDT SUN APR 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR VERNON AND
EAST CENTRAL BOURBON COUNTIES UNTIL 1000 PM CDT...

AT 918 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR FORT SCOTT...
AND MOVING NORTHEAST AT 30 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS.

LOCATIONS IMPACTED INCLUDE...
NEVADA...WALKER...SCHELL CITY...GARLAND...RICHARDS...DEERFIELD...
MOUNDVILLE...STOTESBURY...HORTON...METZ...MILO AND HARWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3772 9462 3772 9471 3773 9479 3777 9484
      3782 9482 3807 9452 3806 9427 3804 9423
      3806 9421 3805 9419 3806 9413 3804 9406
      3783 9407 3775 9427
TIME...MOT...LOC 0219Z 246DEG 21KT 3782 9469

HAIL...1.00IN
WIND...<50 MPH

$$

CRAMER
777 
WWUS53 KSGF 300301
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1001 PM CDT SUN APR 29 2012

KSC011-MOC217-300310-
/O.EXP.KSGF.SV.W.0086.000000T0000Z-120430T0300Z/
BOURBON KS-VERNON MO-
1001 PM CDT SUN APR 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR VERNON AND EAST CENTRAL
BOURBON COUNTIES HAS EXPIRED...

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

HOWEVER...THERE IS A SIGNIFICANT RISK FOR FLASH FLOODING OVER 
BOURBON AND VERNON COUNTIES OVER THE NEXT FEW HOURS.  

THE CITY OF NEVADA WILL PARTICULARLY HAVE A SIGNIFICANT RISK FOR 
FLASH FLOODING.

LAT...LON 3772 9462 3772 9471 3773 9479 3777 9484
      3782 9482 3807 9452 3806 9427 3804 9423
      3806 9421 3805 9419 3806 9413 3804 9406
      3783 9407 3775 9427
TIME...MOT...LOC 0219Z 246DEG 21KT 3782 9469

$$

CRAMER

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 8:08 PM CDTRiver Flood WarningSGFVernon6 days
Apr 29, 9:47 PM CDTFlash Flood WarningSGFCedar, St. Clair, Vernon9 hr
Apr 29, 9:50 PM CDTRiver Flood WarningSGFCedar3 days
Apr 29, 11:57 PM CDTSevere Thunderstorm WarningSGFBarton, Vernon48 min
Apr 30, 12:46 AM CDTSevere Thunderstorm WarningSGFBarton, Vernon16 min
Apr 30, 12:47 AM CDTFlash Flood WarningSGFBarton, Cedar, Jasper, Vernon6 hr
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, 6:54 AM CDTAreal Flood WarningSGFBarton, Cedar, Jasper, St. Clair, Vernon12 hr
Apr 30, 9:36 AM CDTRiver Flood WarningSGFBates, Vernon48 hr
Apr 29, 11:17 PM CDTSevere Thunderstorm WarningSGFCherokee, Crawford43 min
Apr 30, 12:05 AM CDTSevere Thunderstorm WarningSGFCherokee, Crawford25 min
Apr 30, 12:57 AM CDTSpecial Weather StatementSGFCherokee48 min
Apr 30, 9:36 AM CDTRiver Flood WarningSGFBourbon66 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.