Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 2, NWS Springfield, MO

January 17, 2012Camden County, Dallas County, Laclede County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jan 17, 2012, 2:55 AM CST for Camden County, Dallas County, Laclede County, Missouri. It was in force for 50 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
Jan 17, 2012, 2:55 AM CST (08:55 UTC)
Expired
Jan 17, 2012, 3:45 AM CST
In force
50 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Camden County, MO, Dallas County, MO, Laclede County, MO

The radar

The Springfield radar (KSGF), 81 km from the middle of the area, began a volume at 08:56 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
Jan 17, 3:20 AM CSTHAIL 13 Sse Eldridge, MO
Jan 17, 3:25 AM CSTTSTM WND DMGNw Lebanon, MOTHE RUBBERIZED ROOF ON THE JUNIOR HIGH SCHOOL AUDITORIUM WAS ROLLED UP AND DAMAGED. THERE WAS ROOF SHINGLE DAMAGE TO A PORCH OF A HOUSE ACROSS THE STREET FROM THE SCHOOL. TIME ESTIMATED.

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
Jan 16, 11:47 PM CSTTornado WatchSPC7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 8.9 hours before the alert went out and 133 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 2012-01-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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 2012-01-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 246 square meters per square second.1939587897117Sfc1 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
3 J/kg
Mixed-layer CIN
-171 J/kg
Mixed-layer LCL
1205 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
246 m²/s²
0-3 km storm-relative helicity
361 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.

209 
WUUS53 KSGF 170855
SVRSGF
MOC029-059-105-170945-
/O.NEW.KSGF.SV.W.0002.120117T0855Z-120117T0945Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
255 AM CST TUE JAN 17 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN DALLAS COUNTY IN SOUTHWEST MISSOURI...
  NORTHERN LACLEDE COUNTY IN SOUTHWEST MISSOURI...
  SOUTHERN CAMDEN COUNTY IN CENTRAL MISSOURI...

* UNTIL 345 AM CST.

* AT 251 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM URBANA TO
  BUFFALO...MOVING EAST AT 55 MPH. THESE STORMS ARE CAPABLE OF
  PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60
  MPH.

* LOCATIONS IMPACTED INCLUDE BENNETT SPRINGS...BRANCH...BUFFALO...
  DECATURVILLE...ELDRIDGE...LEADMINE...LEBANON...LOUISBURG...
  MONTREAL...PLAD...PUMPKIN CENTER...SLEEPER...STOUTLAND...TUNAS...
  URBANA...WET GLAIZE AND WINDYVILLE.

OTHER LOCATIONS IN THE WARNING INCLUDE BENNETT SPRING STATE PARK.
INTERSTATE 44 BETWEEN MILE MARKERS 122 AND 143 WILL ALSO BE IMPACTED
BY THESE STORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS CAPABLE OF PRODUCING LARGE HAIL AND
DAMAGING WINDS...IF YOU ARE IN THEIR PATH SEEK SHELTER INDOORS AND
STAY AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CST TUESDAY MORNING
FOR SOUTHERN MISSOURI.

&&

LAT...LON 3766 9241 3759 9318 3790 9317 3790 9308
      3792 9308 3801 9242
TIME...MOT...LOC 0856Z 263DEG 49KT 3781 9306 3766 9306
WIND...HAIL 60MPH 1.00IN

$$

SCHAUMANN
3 follow-up statements
496 
WWUS53 KSGF 170912
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
312 AM CST TUE JAN 17 2012

MOC029-059-105-170945-
/O.CON.KSGF.SV.W.0002.000000T0000Z-120117T0945Z/
CAMDEN MO-LACLEDE MO-DALLAS MO-
312 AM CST TUE JAN 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM CST
FOR NORTHERN DALLAS...NORTHERN LACLEDE AND SOUTHEASTERN CAMDEN
COUNTIES...

AT 311 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 3 MILES
SOUTH OF MONTREAL TO 5 MILES SOUTH OF WINDYVILLE...MOVING EAST AT 55
MPH. THESE STORMS ARE CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.

LOCATIONS IMPACTED INCLUDE BENNETT SPRINGS...BUFFALO...
DECATURVILLE...ELDRIDGE...LEBANON...MONTREAL...PLAD...SLEEPER...
STOUTLAND...WET GLAIZE AND WINDYVILLE.

OTHER LOCATIONS IN THE WARNING INCLUDE BENNETT SPRING STATE PARK.
INTERSTATE 44 BETWEEN MILE MARKERS 122 AND 143 WILL ALSO BE IMPACTED
BY THESE STORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CST TUESDAY MORNING
FOR SOUTHERN MISSOURI.

&&

LAT...LON 3796 9281 3801 9242 3766 9241 3759 9318
      3760 9318
TIME...MOT...LOC 0913Z 263DEG 49KT 3793 9258 3765 9292
WIND...HAIL 60MPH 1.00IN

$$

SCHAUMANN
725 
WWUS53 KSGF 170920
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
320 AM CST TUE JAN 17 2012

MOC059-170930-
/O.CAN.KSGF.SV.W.0002.000000T0000Z-120117T0945Z/
DALLAS MO-
320 AM CST TUE JAN 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN DALLAS COUNTY IS
CANCELLED...

THE SEVERE THUNDERSTORMS HAVE PUSHED EAST INTO NORTHERN LACLEDE 
COUNTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CST TUESDAY MORNING
FOR SOUTHERN MISSOURI.

&&

LAT...LON 3766 9241 3763 9284 3781 9286 3797 9263
      3801 9243
TIME...MOT...LOC 0920Z 263DEG 49KT 3793 9246 3768 9271

$$

MOC029-105-170945-
/O.CON.KSGF.SV.W.0002.000000T0000Z-120117T0945Z/
CAMDEN MO-LACLEDE MO-
320 AM CST TUE JAN 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 AM CST
FOR NORTHERN LACLEDE AND SOUTHEASTERN CAMDEN COUNTIES...

AT 316 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM WET GLAIZE
TO 6 MILES WEST OF LEBANON...MOVING EAST AT 55 MPH. THESE STORMS ARE
CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS
OF 60 MPH.

LOCATIONS IMPACTED INCLUDE DECATURVILLE...ELDRIDGE...LEBANON...
MONTREAL...SLEEPER...STOUTLAND AND WET GLAIZE.

OTHER LOCATIONS IN THE WARNING INCLUDE BENNETT SPRING STATE PARK.
INTERSTATE 44 BETWEEN MILE MARKERS 122 AND 143 WILL ALSO BE IMPACTED
BY THESE STORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CST TUESDAY MORNING
FOR SOUTHERN MISSOURI.

&&

LAT...LON 3766 9241 3763 9284 3781 9286 3797 9263
      3801 9243
TIME...MOT...LOC 0920Z 263DEG 49KT 3793 9246 3768 9271
WIND...HAIL 60MPH 1.00IN

$$

SCHAUMANN
730 
WWUS53 KSGF 170938
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
338 AM CST TUE JAN 17 2012

MOC029-105-170949-
/O.EXP.KSGF.SV.W.0002.000000T0000Z-120117T0945Z/
CAMDEN MO-LACLEDE MO-
338 AM CST TUE JAN 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN LACLEDE AND
SOUTHEASTERN CAMDEN COUNTIES WILL EXPIRE AT 345 AM CST...

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 AM CST TUESDAY MORNING
FOR SOUTHERN MISSOURI.

LAT...LON 3766 9241 3763 9284 3781 9286 3797 9263
      3801 9243
TIME...MOT...LOC 0939Z 263DEG 49KT 3796 9213 3771 9239

$$

SCHAUMANN

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 16, 10:55 PM CSTSevere Thunderstorm WarningSGFCedar, St. Clair25 min
Jan 16, 11:08 PM CSTTornado WarningSGFHickory, Polk, St. Clair35 min
Jan 16, 11:29 PM CSTTornado WarningSGFCamden, Dallas46 min
Jan 16, 11:53 PM CSTTornado WarningSGFDallas, Hickory20 min
Jan 16, 11:58 PM CSTTornado WarningSGFMiller47 min
Jan 17, 12:18 AM CSTTornado WarningSGFCamden42 min
Jan 17, 12:22 AM CSTTornado WarningSGFMaries53 min
Jan 17, 12:41 AM CSTTornado WarningSGFMiller, Pulaski29 min
Jan 17, 12:57 AM CSTTornado WarningSGFMaries48 min
Jan 17, 1:34 AM CSTTornado WarningSGFPhelps12 min
Jan 17, 3:27 AM CSTSevere Thunderstorm WarningSGFPulaski33 min
Jan 17, 3:53 AM CSTSevere Thunderstorm WarningSGFMaries, Phelps41 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.