Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 74, NWS Springfield, MO

April 15, 2012Miller County, Morgan County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 15, 2012, 4:11 PM CDT for Miller County, Morgan County, Missouri. It was in force for 22 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 15, 2012, 4:11 PM CDT (21:11 UTC)
Expired: Apr 15, 2012, 4:33 PM CDT
In force: 22 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Miller County, MO, Morgan County, MO

The radar

The Springfield radar (KSGF), 135 km from the middle of the area, began a volume at 21:13 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
Apr 15, 4:15 PM CDT	HAIL 1.75	1 E Laurie, MO
Apr 15, 4:30 PM CDT	HAIL 0.75	4 Nw Eldon, MO

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
Apr 15, 10:51 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.2 hours before the alert went out and 185 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: 31 J/kg
Mixed-layer CIN: -142 J/kg
Mixed-layer LCL: 855 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 319 m²/s²
0-3 km storm-relative helicity: 381 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.

606 
WUUS53 KSGF 152111
SVRSGF
MOC131-141-152200-
/O.NEW.KSGF.SV.W.0074.120415T2111Z-120415T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
411 PM CDT SUN APR 15 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN MILLER COUNTY IN CENTRAL MISSOURI...
  SOUTHEASTERN MORGAN COUNTY IN CENTRAL MISSOURI...

* UNTIL 500 PM CDT

* AT 409 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 9 MILES SOUTH OF
  LAURIE...AND MOVING NORTHEAST AT 85 MPH.

  HAZARD...PING PONG BALL SIZE HAIL AND 60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

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

* LOCATIONS IMPACTED INCLUDE...
  ELDON...LAURIE...LAKELAND...KAISER...LAKEVIEW...BAGNELL...ROCKY
  MOUNT...GRAVOIS MILLS...TUSCUMBIA...AURORA SPRINGS...BARNETT...
  MARYS HOME...ETTERVILLE AND OLEAN.

THIS WARNING ALSO INCLUDES LAKE OF THE OZARKS STATE PARK AND LAKE OF
THE OZARKS. 

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.

LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

&&

LAT...LON 3853 9275 3844 9262 3843 9241 3835 9240
      3834 9232 3804 9253 3810 9259 3817 9260
      3817 9264 3821 9264 3822 9274 3819 9277
      3820 9289
TIME...MOT...LOC 2111Z 203DEG 75KT 3811 9279

HAIL...1.50IN
WIND...60 MPH

$$

FOSTER

2 follow-up statements

145 
WWUS53 KSGF 152128
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
428 PM CDT SUN APR 15 2012

MOC131-141-152200-
/O.CON.KSGF.SV.W.0074.000000T0000Z-120415T2200Z/
MILLER MO-MORGAN MO-
428 PM CDT SUN APR 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
MORGAN AND NORTHWESTERN MILLER COUNTIES UNTIL 500 PM CDT...

AT 426 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ELDON...AND
MOVING NORTHEAST AT 85 MPH.

HAZARD...PING PONG BALL SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

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

LOCATIONS IMPACTED INCLUDE...

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 3819 9250 3824 9259 3830 9269 3835 9282
      3853 9275 3844 9262 3843 9241 3835 9240
      3834 9232
TIME...MOT...LOC 2128Z 203DEG 75KT 3843 9259

HAIL...1.50IN
WIND...60 MPH

$$

FOSTER

198 
WWUS53 KSGF 152133
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
433 PM CDT SUN APR 15 2012

MOC131-141-152143-
/O.CAN.KSGF.SV.W.0074.000000T0000Z-120415T2200Z/
MILLER MO-MORGAN MO-
433 PM CDT SUN APR 15 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MORGAN AND
NORTHWESTERN MILLER COUNTIES IS CANCELLED...

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

LAT...LON 3819 9250 3824 9259 3830 9269 3835 9282
      3853 9275 3844 9262 3843 9241 3835 9240
      3834 9232
TIME...MOT...LOC 2133Z 203DEG 75KT 3852 9251

$$

FOSTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 12:54 AM CDT	Areal Flood Advisory	SGF	Benton, Camden, Dallas, Laclede, Maries, Miller and 4 more	12 hr
Apr 15, 4:13 AM CDT	Wind Advisory	SGF	Barton, Benton, Camden, Cedar, Dade, Dallas and 11 more	14 hr
Apr 15, 7:21 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Jasper	39 min
Apr 15, 7:42 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	36 min
Apr 15, 8:20 AM CDT	Special Weather Statement	SGF	St. Clair	25 min
Apr 15, 8:45 AM CDT	Special Weather Statement	SGF	Benton	45 min
Apr 15, 8:55 AM CDT	Flash Flood Warning	SGF	Barton, Jasper, Newton	6 hr
Apr 15, 9:59 AM CDT	Special Weather Statement	SGF	Lawrence	31 min
Apr 15, 11:22 AM CDT	Special Weather Statement	SGF	Camden, Dallas	38 min
Apr 15, 12:39 PM CDT	Special Weather Statement	SGF	Jasper	36 min
Apr 15, 12:41 PM CDT	Special Weather Statement	SGF	Cedar	34 min
Apr 15, 12:50 PM CDT	Special Weather Statement	SGF	St. Clair	25 min
Apr 15, 12:52 PM CDT	Special Weather Statement	SGF	Cedar, Dade	38 min
Apr 15, 12:54 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, St. Clair	21 min
Apr 15, 1:14 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone	29 min
Apr 15, 1:47 PM CDT	Special Weather Statement	SGF	Dallas, Greene	28 min
Apr 15, 1:49 PM CDT	Severe Thunderstorm Warning	SGF	Barry	14 min
Apr 15, 3:18 PM CDT	Areal Flood Warning	SGF	Dallas, Polk	2 hr
Apr 15, 3:26 PM CDT	Flash Flood Warning	SGF	Christian, Greene, Stone, Taney, Webster	2 hr
Apr 15, 3:58 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas, Laclede	26 min
Apr 15, 4:55 PM CDT	Areal Flood Advisory	SGF	Douglas, Ozark, Webster, Wright	6 hr
Apr 15, 5:04 PM CDT	Flash Flood Warning	SGF	Camden, Laclede, Maries, Miller, Phelps, Pulaski	6 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2012 Every 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.