Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 151, NWS Springfield, MO

July 7, 2012St. Clair County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jul 7, 2012, 4:39 PM CDT for St. Clair County, Missouri. It was in force for 36 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: Jul 7, 2012, 4:39 PM CDT (21:39 UTC)
Expired: Jul 7, 2012, 5:15 PM CDT
In force: 36 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County St. Clair County, MO

The radar

The Springfield radar (KSGF), 92 km from the middle of the area, began a volume at 21:42 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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.7 hours before the alert went out and 121 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: 1058 J/kg
Mixed-layer CIN: -152 J/kg
Mixed-layer LCL: 2009 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

122 
WUUS53 KSGF 072139
SVRSGF
MOC185-072215-
/O.NEW.KSGF.SV.W.0151.120707T2139Z-120707T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
439 PM CDT SAT JUL 7 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

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

* UNTIL 515 PM CDT

* AT 434 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER CENTRAL ST.
  CLAIR COUNTY...AND MOVING WEST AT 15 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...
  TIFFIN AND TABERVILLE.

THIS WARNING ALSO INCLUDES TRUMAN LAKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3790 9370 3790 9407 3814 9405 3808 9373
TIME...MOT...LOC 2139Z 101DEG 15KT 3801 9389

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

$$

WISE

2 follow-up statements

333 
WWUS53 KSGF 072155
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
455 PM CDT SAT JUL 7 2012

MOC185-072215-
/O.CON.KSGF.SV.W.0151.000000T0000Z-120707T2215Z/
ST. CLAIR MO-
455 PM CDT SAT JUL 7 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL ST.
CLAIR COUNTY UNTIL 515 PM CDT...

AT 451 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER CENTRAL ST.
CLAIR COUNTY...AND MOVING NORTHWEST AT 15 MPH.

HAZARD...60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...MINOR TREE DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER
         BROKEN.

LOCATIONS IMPACTED INCLUDE...
MONEGAW SPRINGS...TIFFIN AND TABERVILLE.

THIS WARNING ALSO INCLUDES TRUMAN LAKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3791 9373 3793 9406 3814 9405 3809 9376
TIME...MOT...LOC 2155Z 122DEG 14KT 3800 9384

HAIL...<.75IN
WIND...60 MPH

$$

WISE

735 
WWUS53 KSGF 072212
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
512 PM CDT SAT JUL 7 2012

MOC185-072221-
/O.EXP.KSGF.SV.W.0151.000000T0000Z-120707T2215Z/
ST. CLAIR MO-
512 PM CDT SAT JUL 7 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ST. CLAIR COUNTY WILL
EXPIRE AT 515 PM CDT...

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

LAT...LON 3791 9373 3793 9406 3814 9405 3809 9376
TIME...MOT...LOC 2211Z 122DEG 14KT 3803 9391

$$

WISE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 1:37 PM CDT	Severe Thunderstorm Warning	SGF	Webster	23 min
Jul 7, 1:40 PM CDT	Severe Thunderstorm Warning	SGF	Webster	30 min
Jul 7, 1:44 PM CDT	Special Weather Statement	SGF	Christian	31 min
Jul 7, 1:54 PM CDT	Special Weather Statement	SGF	Christian	36 min
Jul 7, 2:00 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Greene	30 min
Jul 7, 2:09 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Greene	51 min
Jul 7, 2:20 PM CDT	Special Weather Statement	SGF	Stone	25 min
Jul 7, 2:21 PM CDT	Special Weather Statement	SGF	Maries	24 min
Jul 7, 2:24 PM CDT	Severe Thunderstorm Warning	SGF	Greene	51 min
Jul 7, 2:50 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Lawrence, Stone	40 min
Jul 7, 3:05 PM CDT	Special Weather Statement	SGF	Morgan	25 min
Jul 7, 3:12 PM CDT	Severe Thunderstorm Warning	SGF	Morgan	27 min
Jul 7, 3:32 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, Polk	43 min
Jul 7, 3:40 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Morgan	35 min
Jul 7, 3:50 PM CDT	Severe Thunderstorm Warning	SGF	Barry	25 min
Jul 7, 5:17 PM CDT	Special Weather Statement	SGF	Barton	28 min
Jul 7, 5:23 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Ozark	52 min
Jul 7, 5:29 PM CDT	Severe Thunderstorm Warning	SGF	Barton	31 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.