Alert archive / Missouri / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 182, NWS Springfield, MO

May 12, 2011Douglas County, Ozark County, Taney County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 12, 2011, 8:42 PM CDT for Douglas County, Ozark County, Taney County, Missouri. It was in force for 63 min. 3 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: May 12, 2011, 8:42 PM CDT (01:42 UTC)
Expired: May 12, 2011, 9:45 PM CDT
In force: 63 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Douglas County, MO, Ozark County, MO, Taney County, MO

The radar

The Springfield radar (KSGF), 84 km from the middle of the area, began a volume at 01:46 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

Time	Report	Where	Remark
May 12, 8:56 PM CDT	TSTM WND DMG	2 N Rome, MO	100 FEET OF ROOFING OFF OF A HOME
May 12, 9:12 PM CDT	TSTM WND DMG	Rome, MO	16 INCH TREES DOWN ALONG HIGHWAY A IN ROME...POWER IS OUT
May 12, 9:14 PM CDT	TSTM WND GST 60	Ava, 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
May 12, 3:17 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.7 hours before the alert went out and 108 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: 1521 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1233 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 153 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 6.8

Open this sounding in Storm Lab

The text

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

616 
WUUS53 KSGF 130142
SVRSGF
MOC067-153-213-130245-
/O.NEW.KSGF.SV.W.0182.110513T0142Z-110513T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
842 PM CDT THU MAY 12 2011

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DOUGLAS COUNTY IN SOUTHWEST MISSOURI...
  EASTERN TANEY COUNTY IN SOUTHWEST MISSOURI...
  WESTERN OZARK COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 945 PM CDT.

* AT 841 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR RUETER...OR 18 MILES EAST OF FORSYTH...
  MOVING NORTHEAST AT 40 MPH. THIS STORM IS CAPABLE OF PRODUCING HALF
  DOLLAR SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.

* LOCATIONS IMPACTED INCLUDE AVA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3707 9277 3705 9209 3698 9209 3649 9268
      3650 9309
TIME...MOT...LOC 0142Z 217DEG 33KT 3661 9281
WIND...HAIL 60MPH 1.25IN

$$

CRAMER

3 follow-up statements

127 
WWUS53 KSGF 130159
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
859 PM CDT THU MAY 12 2011

MOC067-153-213-130245-
/O.CON.KSGF.SV.W.0182.000000T0000Z-110513T0245Z/
DOUGLAS MO-OZARK MO-TANEY MO-
859 PM CDT THU MAY 12 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR NORTHEASTERN TANEY...NORTHWESTERN OZARK AND DOUGLAS COUNTIES...

AT 856 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM 6 MILES WEST OF THORNFIELD...OR 16
MILES SOUTH OF AVA...MOVING NORTHEAST AT 40 MPH. THIS STORM IS
CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS
OF 60 MPH.

LOCATIONS IMPACTED INCLUDE AVA...BRADLEYVILLE...BROWNBRANCH...
BRUSHYKNOB...DRURY...GENTRYVILLE...GOODHOPE...LONG RUN...NOBLE...
ROCKBRIDGE...ROME...SQUIRES...THORNFIELD...VANZANT AND WASOLA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
THURSDAY EVENING FOR SOUTHEAST KANSAS AND SOUTHERN MISSOURI.

&&

LAT...LON 3669 9299 3681 9291 3707 9277 3705 9209
      3699 9209 3697 9210 3656 9270
TIME...MOT...LOC 0159Z 217DEG 33KT 3675 9274
WIND...HAIL 60MPH 1.00IN

$$

CRAMER

742 
WWUS53 KSGF 130222
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
922 PM CDT THU MAY 12 2011

MOC213-130232-
/O.CAN.KSGF.SV.W.0182.000000T0000Z-110513T0245Z/
TANEY MO-
922 PM CDT THU MAY 12 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN TANEY COUNTY IS
CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
THURSDAY EVENING FOR SOUTHEAST KANSAS AND SOUTHERN MISSOURI.

&&

LAT...LON 3661 9264 3689 9275 3707 9277 3705 9209
      3699 9209 3697 9210 3679 9236
TIME...MOT...LOC 0222Z 217DEG 33KT 3706 9265 3672 9249

$$

MOC067-153-130245-
/O.CON.KSGF.SV.W.0182.000000T0000Z-110513T0245Z/
DOUGLAS MO-OZARK MO-
922 PM CDT THU MAY 12 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR NORTH CENTRAL OZARK AND DOUGLAS COUNTIES...

AT 920 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES
NORTH OF AVA TO 5 MILES SOUTHEAST OF NOBLE...MOVING NORTHEAST AT 40
MPH. THESE STORMS ARE CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH.

LOCATIONS IMPACTED INCLUDE AVA...BRUSHYKNOB...DRURY...GENTRYVILLE...
NOBLE...ROCKBRIDGE...SQUIRES...THORNFIELD...VANZANT AND WASOLA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
THURSDAY EVENING FOR SOUTHEAST KANSAS AND SOUTHERN MISSOURI.

&&

LAT...LON 3661 9264 3689 9275 3707 9277 3705 9209
      3699 9209 3697 9210 3679 9236
TIME...MOT...LOC 0222Z 217DEG 33KT 3706 9265 3672 9249
WIND...HAIL 60MPH <.50IN

$$

CRAMER

109 
WWUS53 KSGF 130233
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
933 PM CDT THU MAY 12 2011

MOC067-153-130245-
/O.CON.KSGF.SV.W.0182.000000T0000Z-110513T0245Z/
DOUGLAS MO-OZARK MO-
933 PM CDT THU MAY 12 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR NORTH CENTRAL OZARK AND DOUGLAS COUNTIES...

AT 929 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
TRACK SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 11 MILES NORTH
OF AVA TO ROCKBRIDGE...MOVING NORTHEAST AT 40 MPH. THESE STORMS ARE
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
HAVE A HISTORY OF PRODUCING DAMAGING WINDS.

LOCATIONS IMPACTED INCLUDE AVA...BRUSHYKNOB...DRURY...GENTRYVILLE...
NOBLE...ROCKBRIDGE...SQUIRES...THORNFIELD...VANZANT AND WASOLA.

THESE STORMS HAVE A HISTORY OF DOWNING LARGE TREES IN SOUTHWESTERN 
DOUGLAS COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 3661 9264 3689 9275 3707 9277 3705 9209
      3699 9209 3697 9210 3679 9236
TIME...MOT...LOC 0231Z 217DEG 33KT 3713 9259 3678 9243
WIND...HAIL 60MPH <.50IN

$$

SCHAUMANN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 12, 7:11 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Miller	49 min
May 12, 7:16 PM CDT	Severe Thunderstorm Warning	SGF	Benton, Camden, Morgan	44 min
May 12, 7:30 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Morgan	45 min
May 12, 7:31 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas, Hickory	19 min
May 12, 7:33 PM CDT	Severe Thunderstorm Warning	SGF	Polk	45 min
May 12, 7:52 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas, Hickory	38 min
May 12, 7:53 PM CDT	Areal Flood Advisory	SGF	Barry, Barton, Dade, Jasper, Lawrence, McDonald and 1 more	6 hr
May 12, 8:22 PM CDT	Special Weather Statement	SGF	Miller	23 min
May 12, 8:24 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Greene	26 min
May 12, 8:25 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Miller	35 min
May 12, 8:30 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas	45 min
May 12, 8:34 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Polk, Webster	36 min
May 12, 8:41 PM CDT	Special Weather Statement	SGF	Ozark	49 min
May 12, 8:55 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Laclede, Maries, Miller, Phelps, Pulaski	65 min
May 12, 9:18 PM CDT	Severe Thunderstorm Warning	SGF	Laclede, Phelps, Texas, Wright	57 min
May 12, 9:28 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Ozark	62 min
May 12, 9:56 PM CDT	Severe Thunderstorm Warning	SGF	Laclede, Maries, Miller, Phelps, Pulaski	64 min
May 12, 10:56 PM CDT	Special Weather Statement	SGF	Shannon	49 min
May 12, 11:13 PM CDT	Areal Flood Advisory	SGF	Camden, Dallas, Dent, Laclede, Maries, Miller and 4 more	12 hr
May 13, 11:08 AM CDT	Severe Thunderstorm Warning	SGF	Camden, Laclede, Pulaski	36 min
May 13, 1:08 PM CDT	Special Weather Statement	SGF	Maries	37 min
May 13, 1:16 PM CDT	Severe Thunderstorm Warning	SGF	St. Clair	29 min
May 13, 3:47 PM CDT	Flash Flood Warning	SGF	Benton, Hickory	4 hr
May 13, 5:03 PM CDT	Flash Flood Warning	SGF	Dallas, Polk	3 hr
May 13, 5:48 PM CDT	Flash Flood Warning	SGF	Camden, Miller, Morgan	2 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2011 Every severe thunderstorm warning in 2011

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.