Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 320, NWS Springfield, MO

October 17, 20124 counties in Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Oct 17, 2012, 2:54 PM CDT for 4 counties in Missouri. It was in force for 51 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
Oct 17, 2012, 2:54 PM CDT (19:54 UTC)
Expired
Oct 17, 2012, 3:45 PM CDT
In force
51 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Christian County, MO, Laclede County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 67 km from the middle of the area, began a volume at 19:56 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
Oct 17, 3:21 PM CDTTSTM WND DMG2 S Lebanon, MOLARGE LIMBS DOWN ON HIGHWAY 5 SOUTH OF LEBANON AND POWER POLE DOWN.

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.

IssuedProductOfficeLasted
Oct 17, 1:58 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 7.9 hours before the alert went out and 114 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 2012-10-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 12:00Z on 2012-10-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 205 square meters per square second.1939587897Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
745 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
205 m²/s²
0-3 km storm-relative helicity
248 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.

768 
WUUS53 KSGF 171954
SVRSGF
MOC043-105-225-229-172045-
/O.NEW.KSGF.SV.W.0320.121017T1954Z-121017T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
254 PM CDT WED OCT 17 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN CHRISTIAN COUNTY IN SOUTHWEST MISSOURI...
  EASTERN LACLEDE COUNTY IN SOUTHWEST MISSOURI...
  SOUTHERN WEBSTER COUNTY IN SOUTHWEST MISSOURI...
  WRIGHT COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 345 PM CDT

* AT 251 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 17 MILES
  SOUTHWEST OF LEBANON...AND MOVING EAST AT 55 MPH.

  HAZARD...70 MPH WIND GUSTS.

  SOURCE...A WIND GUST OF 65 MPH WERE REPORTED IN NORTHEAST   
SPRINGFIELD.

  IMPACT...TREE BRANCHES UP TO THREE INCHES IN DIAMETER BROKEN.
           POSSIBLE MINOR DAMAGE TO SHINGLE ROOFS AND METAL
           OUTBUILDINGS.

* LOCATIONS IMPACTED INCLUDE...
  DIGGINS...FORDLAND...HARTVILLE...LEBANON...ROGERSVILLE AND SEYMOUR.

INTERSTATE 44 BETWEEN MILE MARKERS 122 AND 142 WILL ALSO BE IMPACTED
BY THE SEVERE THUNDERSTORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3706 9306 3723 9306 3724 9269 3771 9270
      3783 9244 3771 9241 3764 9225 3731 9227
      3707 9269
TIME...MOT...LOC 1953Z 262DEG 49KT 3755 9289

HAIL...<.75IN
WIND...70 MPH

$$

COLUCCI
2 follow-up statements
785 
WWUS53 KSGF 172024
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
324 PM CDT WED OCT 17 2012

MOC043-225-172032-
/O.CAN.KSGF.SV.W.0320.000000T0000Z-121017T2045Z/
CHRISTIAN MO-WEBSTER MO-
324 PM CDT WED OCT 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN WEBSTER AND
NORTHEASTERN CHRISTIAN COUNTIES IS CANCELLED...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT
WEDNESDAY EVENING FOR SOUTHERN MISSOURI.

LAT...LON 3726 9268 3726 9269 3771 9270 3783 9244
      3771 9241 3764 9225 3731 9227 3722 9244
      3721 9268
TIME...MOT...LOC 2022Z 262DEG 49KT 3760 9240

$$

MOC105-229-172045-
/O.CON.KSGF.SV.W.0320.000000T0000Z-121017T2045Z/
LACLEDE MO-WRIGHT MO-
324 PM CDT WED OCT 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
WRIGHT AND EASTERN LACLEDE COUNTIES UNTIL 345 PM CDT...

AT 318 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 12 MILES SOUTHEAST
OF LEBANON...AND MOVING EAST AT 55 MPH.

HAZARD...60 MPH WIND GUSTS.

SOURCE...LAW ENFORCEMENT REPORTED LARGE TREE LIMBS AND POWER POLE 
DOWN 5 MILES SOUTH OF LEBANON ON HIGHWAY 5.

LOCATIONS IMPACTED INCLUDE...
EXTREME SOUTHWESTERN FORT LEONARD WOOD...HARTVILLE AND LEBANON.

INTERSTATE 44 BETWEEN MILE MARKERS 122 AND 142 WILL ALSO BE IMPACTED
BY THE SEVERE THUNDERSTORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT
WEDNESDAY EVENING FOR SOUTHERN MISSOURI.

LAT...LON 3726 9268 3726 9269 3771 9270 3783 9244
      3771 9241 3764 9225 3731 9227 3722 9244
      3721 9268
TIME...MOT...LOC 2022Z 262DEG 49KT 3760 9240

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

$$

COLUCCI
762 
WWUS53 KSGF 172030
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
330 PM CDT WED OCT 17 2012

MOC105-229-172045-
/O.CON.KSGF.SV.W.0320.000000T0000Z-121017T2045Z/
LACLEDE MO-WRIGHT MO-
330 PM CDT WED OCT 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
WRIGHT AND SOUTHEASTERN LACLEDE COUNTIES UNTIL 345 PM CDT...

AT 328 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 10 MILES SOUTHWEST
OF FORT LEONARD WOOD...AND MOVING EAST AT 55 MPH.

HAZARD...60 MPH WIND GUSTS.

SOURCE...LAW ENFORCEMENT. LARGE TREE LIMBS AND POWER PLOE DOWN ON 
HIGHWAY 5 SOUTH OF LEBANON. 

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

LOCATIONS IMPACTED INCLUDE...
EXTREME SOUTHWESTERN FORT LEONARD WOOD AND HARTVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT
WEDNESDAY EVENING FOR SOUTHERN MISSOURI.

LAT...LON 3721 9268 3726 9268 3726 9269 3772 9255
      3771 9241 3764 9225 3731 9227 3722 9244
TIME...MOT...LOC 2029Z 262DEG 49KT 3761 9228

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

$$

COLUCCI

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 17, 1:41 PM CDTSpecial Weather StatementSGFPolk34 min
Oct 17, 1:49 PM CDTSpecial Weather StatementSGFDade41 min
Oct 17, 1:58 PM CDTSevere Thunderstorm WarningSGFDade, Greene, Lawrence, Polk47 min
Oct 17, 2:08 PM CDTSevere Thunderstorm WarningSGFDallas, Greene, Polk52 min
Oct 17, 2:34 PM CDTSevere Thunderstorm WarningSGFDallas, Laclede, Webster41 min
Oct 17, 2:36 PM CDTSpecial Weather StatementSGFGreene24 min
Oct 17, 3:08 PM CDTSpecial Weather StatementSGFMaries, Pulaski37 min
Oct 17, 3:35 PM CDTSevere Thunderstorm WarningSGFPhelps, Pulaski, Texas, Wright40 min
Oct 17, 3:40 PM CDTWind AdvisorySGFBarton, Benton, Cedar, Dade, Hickory, Jasper and 4 more27 hr
Oct 17, 5:05 PM CDTSevere Thunderstorm WarningSGFDouglas, Howell, Ozark40 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.