Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 53, NWS Springfield, MO

March 17, 2012Maries County, Phelps County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Mar 17, 2012, 7:24 PM CDT for Maries County, Phelps 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
Mar 17, 2012, 7:24 PM CDT (00:24 UTC)
Expired
Mar 17, 2012, 8:00 PM CDT
In force
36 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
1.75 in
Wind
50.0 mph

Counties Maries County, MO, Phelps County, MO

The radar

The St Louis radar (KLSX), 103 km from the middle of the area, began a volume at 00:24 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 00:00Z, 0.4 hours before the alert went out and 236 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 2012-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 389 joules per kilogram.LCLLFCEL10008507005003002001001 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 2012-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
389 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
2096 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

662 
WUUS53 KSGF 180024
SVRSGF
MOC125-161-180100-
/O.NEW.KSGF.SV.W.0053.120318T0024Z-120318T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
724 PM CDT SAT MAR 17 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL MARIES COUNTY IN CENTRAL MISSOURI...
  NORTHEASTERN PHELPS COUNTY IN EAST CENTRAL MISSOURI...

* UNTIL 800 PM CDT.

* AT 721 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
  THUNDERSTORM 11 MILES NORTHWEST OF ROSATI...OR 13 MILES NORTH OF
  ROLLA...MOVING EAST AT 20 MPH. THIS STORM IS CAPABLE OF            
  PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE. 

* LOCATIONS IMPACTED INCLUDE ROSATI.

INTERSTATE 44 BETWEEN MILE MARKERS 194 AND 199 WILL ALSO BE IMPACTED
BY THIS STORM.

THIS REPLACES THE SEVERE THUNDERSTORM WARNING THAT WAS PREVIOUSLY IN 
EFFECT FOR MARIES COUNTY UNTIL 730 PM CDT.

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 3801 9152 3805 9176 3819 9175 3820 9164
      3816 9163 3816 9153 3815 9151
TIME...MOT...LOC 0023Z 267DEG 19KT 3813 9168
WIND...HAIL <50MPH 1.75IN

$$

WISE
2 follow-up statements
797 
WWUS53 KSGF 180045
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
745 PM CDT SAT MAR 17 2012

MOC125-180054-
/O.CAN.KSGF.SV.W.0053.000000T0000Z-120318T0100Z/
MARIES MO-
745 PM CDT SAT MAR 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MARIES COUNTY IS
CANCELLED...

&&

LAT...LON 3815 9151 3801 9152 3801 9153 3804 9167
      3805 9163 3816 9163 3816 9154
TIME...MOT...LOC 0044Z 267DEG 19KT 3814 9154

$$

MOC161-180100-
/O.CON.KSGF.SV.W.0053.000000T0000Z-120318T0100Z/
PHELPS MO-
745 PM CDT SAT MAR 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR NORTHEASTERN PHELPS COUNTY...

...A SEVERE THUNDERSTORM WARNING ALSO REMAINS IN EFFECT UNTIL 815 PM 
CDT FOR EAST CENTRAL PHELPS COUNTY...

AT 740 PM CDT...A SEVERE THUNDERSTORM WAS REPORTED 8 MILES NORTH OF
ROSATI...OR 10 MILES NORTHWEST OF CUBA...MOVING EAST AT 20 MPH. THIS
STORM IS CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL.

LOCATIONS IMPACTED INCLUDE ROSATI.

INTERSTATE 44 BETWEEN MILE MARKERS 194 AND 199 WILL ALSO BE IMPACTED
BY THIS STORM.

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 3815 9151 3801 9152 3801 9153 3804 9167
      3805 9163 3816 9163 3816 9154
TIME...MOT...LOC 0044Z 267DEG 19KT 3814 9154
WIND...HAIL <50MPH 1.25IN

$$

WISE
926 
WWUS53 KSGF 180058
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
758 PM CDT SAT MAR 17 2012

MOC161-180107-
/O.EXP.KSGF.SV.W.0053.000000T0000Z-120318T0100Z/
PHELPS MO-
758 PM CDT SAT MAR 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PHELPS COUNTY
WILL EXPIRE AT 800 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 3815 9151 3801 9152 3801 9153 3804 9167
      3805 9163 3816 9163 3816 9154
TIME...MOT...LOC 0057Z 267DEG 19KT 3814 9145

$$

WISE

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 17, 7:33 PM CDTSpecial Weather StatementSGFPhelps27 min
Mar 17, 7:42 PM CDTSevere Thunderstorm WarningSGFPhelps16 min
Mar 17, 10:11 PM CDTAreal Flood WarningSGFMaries, Miller, Phelps12 hr
Mar 18, 1:20 AM CDTFlood WatchSGFBarry, Barton, Benton, Camden, Cedar, Christian and 20 more4 days

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