Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 237, NWS Springfield, MO

August 16, 2012Webster County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Aug 16, 2012, 6:35 PM CDT for Webster County, Missouri. It was in force for 40 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: Aug 16, 2012, 6:35 PM CDT (23:35 UTC)
Expired: Aug 16, 2012, 7:15 PM CDT
In force: 40 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Webster County, MO

What was reported inside it

Time	Report	Where	Remark
Aug 16, 6:50 PM CDT	HAIL 0.75	6 Sse Marshfield, MO	ALONG HIGHWAY A WHERE IT CROSSES THE JAMES RIVER.
Aug 16, 6:51 PM CDT	HAIL 0.88	4 Sse Marshfield, 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
Aug 16, 1:05 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.6 hours before the alert went out and 94 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: 1719 J/kg
Mixed-layer CIN: -126 J/kg
Mixed-layer LCL: 1553 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 106 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.

574 
WUUS53 KSGF 162335
SVRSGF
MOC225-170015-
/O.NEW.KSGF.SV.W.0237.120816T2335Z-120817T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
635 PM CDT THU AUG 16 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL WEBSTER COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 715 PM CDT

* AT 632 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES NORTH OF
  DIGGINS...AND MOVING SOUTHEAST AT 5 MPH.

  HAZARD...QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED.

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

* LOCATIONS IMPACTED INCLUDE...
  DIGGINS...FORDLAND AND NORTHVIEW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 3719 9269 3711 9296 3731 9300 3735 9280
TIME...MOT...LOC 2335Z 331DEG 2KT 3726 9289

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

$$

1 follow-up statement

254 
WWUS53 KSGF 170005
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
705 PM CDT THU AUG 16 2012

MOC225-170016-
/O.EXP.KSGF.SV.W.0237.000000T0000Z-120817T0015Z/
WEBSTER MO-
705 PM CDT THU AUG 16 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL WEBSTER COUNTY WILL
EXPIRE AT 715 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
 HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3719 9269 3711 9296 3731 9300 3735 9280
TIME...MOT...LOC 0006Z 331DEG 2KT 3724 9288

$$

HATCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 16, 12:42 PM CDT	Special Weather Statement	SGF	Christian	48 min
Aug 16, 12:47 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Webster	43 min
Aug 16, 12:57 PM CDT	Special Weather Statement	SGF	Dent	33 min
Aug 16, 1:16 PM CDT	Special Weather Statement	SGF	Christian	29 min
Aug 16, 1:23 PM CDT	Special Weather Statement	SGF	Texas	37 min
Aug 16, 1:30 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Shannon, Texas	45 min
Aug 16, 1:33 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Texas, Wright	28 min
Aug 16, 2:04 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Webster	41 min
Aug 16, 2:07 PM CDT	Severe Thunderstorm Warning	SGF	Texas, Wright	38 min
Aug 16, 2:09 PM CDT	Severe Thunderstorm Warning	SGF	Shannon, Texas	51 min
Aug 16, 2:24 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Laclede	30 min
Aug 16, 2:53 PM CDT	Special Weather Statement	SGF	Shannon	37 min
Aug 16, 2:59 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Shannon, Texas	46 min
Aug 16, 3:07 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Laclede, Phelps, Pulaski, Texas, Wright	53 min
Aug 16, 3:28 PM CDT	Severe Thunderstorm Warning	SGF	Laclede, Texas, Webster, Wright	47 min
Aug 16, 3:33 PM CDT	Severe Thunderstorm Warning	SGF	Oregon, Shannon	42 min
Aug 16, 4:20 PM CDT	Special Weather Statement	SGF	Wright	25 min
Aug 16, 4:31 PM CDT	Severe Thunderstorm Warning	SGF	Stone, Taney	44 min
Aug 16, 4:37 PM CDT	Severe Thunderstorm Warning	SGF	Webster, Wright	38 min
Aug 16, 4:40 PM CDT	Special Weather Statement	SGF	Newton	35 min
Aug 16, 4:46 PM CDT	Severe Thunderstorm Warning	SGF	Webster	44 min
Aug 16, 4:47 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Lawrence, Stone	43 min
Aug 16, 4:54 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Stone, Taney	36 min
Aug 16, 5:03 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Lawrence, Newton	42 min
Aug 16, 5:16 PM CDT	Severe Thunderstorm Warning	SGF	Greene, Webster	44 min
Aug 16, 5:18 PM CDT	Special Weather Statement	SGF	Newton	27 min
Aug 16, 5:34 PM CDT	Severe Thunderstorm Warning	SGF	Webster	41 min
Aug 16, 5:41 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Lawrence	37 min
Aug 16, 5:46 PM CDT	Special Weather Statement	SGF	Greene	29 min
Aug 16, 5:55 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Greene, Webster	28 min
Aug 16, 6:14 PM CDT	Special Weather Statement	SGF	Newton	31 min
Aug 16, 6:21 PM CDT	Special Weather Statement	SGF	Dent	24 min
Aug 16, 6:27 PM CDT	Special Weather Statement	SGF	Christian	33 min
Aug 16, 6:48 PM CDT	Areal Flood Advisory	SGF	Christian, Greene, Webster	6 hr
Aug 16, 6:59 PM CDT	Special Weather Statement	SGF	Webster	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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.