Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 32, NWS Springfield, MO

March 15, 2012Dent County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Mar 15, 2012, 3:29 PM CDT for Dent County, Missouri. It was in force for 46 min. 1 report 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
Mar 15, 2012, 3:29 PM CDT (20:29 UTC)
Expired
Mar 15, 2012, 4:15 PM CDT
In force
46 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County Dent County, MO

The radar

The St Louis radar (KLSX), 124 km from the middle of the area, began a volume at 20:30 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
Mar 15, 3:50 PM CDTTSTM WND DMG4 Wsw Sligo, MOEMERGENCY MANAGER REPORTED POWER LINES DOWN...15 HOMES WITHOUT POWER FOR APROXIMATELY THREE OURS.

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 12:00Z, 8.5 hours before the alert went out and 235 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 12:00Z on 2012-03-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1947 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 12:00Z on 2012-03-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 square meters per square second.193958Sfc1 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
1947 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
758 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
105 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.

566 
WUUS53 KSGF 152029
SVRSGF
MOC065-152115-
/O.NEW.KSGF.SV.W.0032.120315T2029Z-120315T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
329 PM CDT THU MAR 15 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN DENT COUNTY IN SOUTH CENTRAL MISSOURI...

* UNTIL 415 PM CDT.

* AT 325 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES SOUTHEAST OF HOWES...OR 5 MILES
  NORTHEAST OF SALEM...MOVING NORTHEAST AT 20 MPH. THIS STORM IS
  CAPABLE OF PRODUCING QUARTER SIZE HAIL.

* LOCATIONS IMPACTED INCLUDE HOWES AND SLIGO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM CAPABLE OF PRODUCING LARGE HAIL...IF YOU
ARE IN ITS PATH SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3760 9147 3772 9156 3780 9141 3779 9131
      3778 9130 3771 9130 3771 9115 3769 9114
TIME...MOT...LOC 2029Z 242DEG 18KT 3769 9144
WIND...HAIL <50MPH 1.00IN

$$

KARDELL
2 follow-up statements
457 
WWUS53 KSGF 152051
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
351 PM CDT THU MAR 15 2012

MOC065-152115-
/O.CON.KSGF.SV.W.0032.000000T0000Z-120315T2115Z/
DENT MO-
351 PM CDT THU MAR 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR NORTHEASTERN DENT COUNTY...

AT 347 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM 4 MILES SOUTHEAST OF SLIGO...OR 12
MILES NORTHEAST OF SALEM...MOVING NORTHEAST AT 20 MPH. THIS STORM IS
CAPABLE OF PRODUCING QUARTER SIZE HAIL.

LOCATIONS IMPACTED INCLUDE SLIGO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM CAPABLE OF PRODUCING LARGE HAIL...IF YOU
ARE IN ITS PATH SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3763 9139 3777 9146 3780 9141 3779 9131
      3778 9130 3771 9130 3771 9115 3769 9114
TIME...MOT...LOC 2051Z 242DEG 18KT 3774 9132
WIND...HAIL <50MPH 1.00IN

$$

KARDELL
000
WWUS53 KSGF 152113
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
413 PM CDT THU MAR 15 2012

MOC065-152123-
/O.EXP.KSGF.SV.W.0032.000000T0000Z-120315T2115Z/
DENT MO-
413 PM CDT THU MAR 15 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DENT COUNTY WILL
EXPIRE AT 415 PM CDT...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING IS EXITING THE WARNED AREA...
THUS THE WARNING IS BEING ALLOWED TO EXPIRE.

LAT...LON 3763 9139 3777 9146 3780 9141 3779 9131
      3778 9130 3771 9130 3771 9115 3769 9114
TIME...MOT...LOC 2113Z 242DEG 18KT 3779 9120

$$

KARDELL

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 15, 1:42 PM CDTSpecial Weather StatementSGFDouglas33 min
Mar 15, 3:23 PM CDTSpecial Weather StatementSGFMaries22 min
Mar 15, 3:39 PM CDTSpecial Weather StatementSGFPhelps36 min
Mar 15, 3:46 PM CDTSevere Thunderstorm WarningSGFMaries, Miller17 min
Mar 15, 3:48 PM CDTSevere Thunderstorm WarningSGFPhelps42 min
Mar 15, 4:11 PM CDTSevere Thunderstorm WarningSGFMaries, Phelps, Pulaski49 min
Mar 15, 4:21 PM CDTSevere Thunderstorm WarningSGFMaries39 min
Mar 15, 4:28 PM CDTSevere Thunderstorm WarningSGFMaries, Phelps47 min
Mar 15, 4:39 PM CDTFlash Flood WarningSGFPhelps6 hr
Mar 15, 4:59 PM CDTSevere Thunderstorm WarningSGFPulaski31 min
Mar 15, 5:17 PM CDTSevere Thunderstorm WarningSGFPhelps19 min
Mar 15, 5:39 PM CDTSpecial Weather StatementSGFPhelps, Pulaski51 min
Mar 15, 5:53 PM CDTFlash Flood WarningSGFPulaski5 hr
Mar 15, 5:57 PM CDTSevere Thunderstorm WarningSGFPhelps33 min
Mar 15, 6:11 PM CDTSpecial Weather StatementSGFShannon49 min
Mar 15, 6:30 PM CDTSevere Thunderstorm WarningSGFDent, Phelps45 min
Mar 15, 6:36 PM CDTSevere Thunderstorm WarningSGFShannon, Texas39 min
Mar 15, 6:57 PM CDTSevere Thunderstorm WarningSGFDent, Shannon34 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.