Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 76, NWS Springfield, MO

April 27, 2012Cedar County, St. Clair County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 27, 2012, 9:36 PM CDT for Cedar County, St. Clair County, Missouri. It was in force for 39 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 27, 2012, 9:36 PM CDT (02:36 UTC)
Expired
Apr 27, 2012, 10:15 PM CDT
In force
39 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Cedar County, MO, St. Clair County, MO

The radar

The Springfield radar (KSGF), 81 km from the middle of the area, began a volume at 02:39 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 27, 9:36 PM CDTHAIL 0.75El Dorado Springs, MO
Apr 27, 9:42 PM CDTHAIL 13 E El Dorado Springs, MO

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.6 hours before the alert went out and 112 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 2012-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 558 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
752 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
558 m²/s²
0-3 km storm-relative helicity
691 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

176 
WUUS53 KSGF 280236
SVRSGF
MOC039-185-280315-
/O.NEW.KSGF.SV.W.0076.120428T0236Z-120428T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
936 PM CDT FRI APR 27 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN CEDAR COUNTY IN SOUTHWEST MISSOURI...
  ST. CLAIR COUNTY IN WEST CENTRAL MISSOURI...

* UNTIL 1015 PM CDT

* AT 934 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR EL DORADO
  SPRINGS...AND MOVING EAST AT 40 MPH.

  HAZARD...QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED.

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

* LOCATIONS IMPACTED INCLUDE...
  OSCEOLA...CEDAR SPRINGS...CAPLINGER MILLS...MONEGAW SPRINGS...
  ROSCOE...VISTA...COLLINS...GERSTER...ICONIUM AND HARPER.

THIS WARNING ALSO INCLUDES TRUMAN LAKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

&&

LAT...LON 3815 9350 3792 9351 3791 9357 3783 9358
      3783 9363 3777 9363 3775 9376 3776 9392
      3778 9402 3783 9407 3796 9407 3801 9399
      3809 9379
TIME...MOT...LOC 0236Z 253DEG 33KT 3788 9392

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

$$

CRAMER
2 follow-up statements
448 
WWUS53 KSGF 280246
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
946 PM CDT FRI APR 27 2012

MOC039-185-280315-
/O.CON.KSGF.SV.W.0076.000000T0000Z-120428T0315Z/
CEDAR MO-ST. CLAIR MO-
946 PM CDT FRI APR 27 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN ST.
CLAIR AND NORTHERN CEDAR COUNTIES UNTIL 1015 PM CDT...

AT 943 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 8 MILES EAST OF EL
DORADO SPRINGS...AND MOVING EAST AT 35 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...TRAINED WEATHER SPOTTERS. QUARTER SIZE HAIL WAS          
REPORTED 3 MILES EAST OF ELDORADO SPRINGS.

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

LOCATIONS IMPACTED INCLUDE...
OSCEOLA...CEDAR SPRINGS...CAPLINGER MILLS...MONEGAW 
SPRINGS...ROSCOE...VISTA...COLLINS...GERSTER...HARPER AND ICONIUM.

THIS WARNING ALSO INCLUDES TRUMAN LAKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

&&

LAT...LON 3815 9350 3792 9351 3791 9357 3783 9358
      3783 9363 3777 9363 3775 9376 3776 9392
      3782 9401 3786 9403 3800 9398 3809 9379
TIME...MOT...LOC 0245Z 254DEG 30KT 3789 9386

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

$$

KARDELL
825 
WWUS53 KSGF 280255
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
955 PM CDT FRI APR 27 2012

MOC039-280305-
/O.CAN.KSGF.SV.W.0076.000000T0000Z-120428T0315Z/
CEDAR MO-
955 PM CDT FRI APR 27 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CEDAR COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 3815 9350 3792 9351 3791 9357 3783 9358
      3783 9381 3789 9381 3789 9385 3790 9387
      3795 9387 3800 9383
TIME...MOT...LOC 0255Z 254DEG 30KT 3791 9376

$$

MOC185-280315-
/O.CON.KSGF.SV.W.0076.000000T0000Z-120428T0315Z/
ST. CLAIR MO-
955 PM CDT FRI APR 27 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
ST. CLAIR COUNTY UNTIL 1015 PM CDT...

AT 952 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 11 MILES SOUTHWEST
OF OSCEOLA...AND MOVING EAST AT 35 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

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

LOCATIONS IMPACTED INCLUDE...
OSCEOLA...VISTA...COLLINS...GERSTER...HARPER AND ICONIUM.

THIS WARNING ALSO INCLUDES TRUMAN LAKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

&&

LAT...LON 3815 9350 3792 9351 3791 9357 3783 9358
      3783 9381 3789 9381 3789 9385 3790 9387
      3795 9387 3800 9383
TIME...MOT...LOC 0255Z 254DEG 30KT 3791 9376

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

$$

CRAMER

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 9:04 PM CDTSevere Thunderstorm WarningSGFVernon20 min
Apr 27, 10:14 PM CDTSevere Thunderstorm WarningSGFBenton, Hickory, St. Clair15 min

Nearby

Severe Thunderstorm Warnings in Missouri, 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.