Alert archive / Missouri / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 49, NWS Springfield, MO

April 19, 2011Benton County, Morgan County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 19, 2011, 2:30 AM CDT for Benton County, Morgan County, Missouri. It was in force for 45 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: Apr 19, 2011, 2:30 AM CDT (07:30 UTC)
Expired: Apr 19, 2011, 3:15 AM CDT
In force: 45 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Benton County, MO, Morgan County, MO

The radar

The Pleasant Hill radar (KEAX), 104 km from the middle of the area, began a volume at 07:32 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
Apr 19, 2:33 AM CDT	HAIL 0.5	Warsaw, MO	BENTON COUNTY DISPATCH REPORTS DIME SIZE HAIL.

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 00:00Z, 7.5 hours before the alert went out and 186 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: 554 J/kg
Mixed-layer CIN: -117 J/kg
Mixed-layer LCL: 1071 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 259 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

203 
WUUS53 KSGF 190730
SVRSGF
MOC015-141-190815-
/O.NEW.KSGF.SV.W.0049.110419T0730Z-110419T0815Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
230 AM CDT TUE APR 19 2011

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BENTON COUNTY IN CENTRAL MISSOURI...
  WEST CENTRAL MORGAN COUNTY IN CENTRAL MISSOURI...

* UNTIL 315 AM CDT.

* AT 223 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR WARSAW...MOVING NORTHEAST AT 45 MPH. THIS
  STORM IS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  EDMONSON BY 235 AM CDT.
  ZORA BY 240 AM CDT.
  COLE CAMP BY 245 AM CDT.
  CROCKERVILLE BY 250 AM CDT.
  STOVER BY 255 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE LAKE OF THE OZARKS AND TRUMAN
LAKE. 

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 3863 9306 3839 9282 3818 9335 3834 9346
      3855 9318 3854 9317 3854 9308 3862 9307
TIME...MOT...LOC 0730Z 233DEG 37KT 3832 9330
WIND...HAIL 60MPH 1.00IN

$$

GRIFFIN

3 follow-up statements

321 
WWUS53 KSGF 190745
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
245 AM CDT TUE APR 19 2011

MOC015-141-190815-
/O.CON.KSGF.SV.W.0049.000000T0000Z-110419T0815Z/
BENTON MO-MORGAN MO-
245 AM CDT TUE APR 19 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR WEST CENTRAL MORGAN AND NORTHEASTERN BENTON COUNTIES...

AT 240 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM 5 MILES SOUTH OF COLE CAMP...OR 14
MILES NORTHEAST OF WARSAW...MOVING NORTHEAST AT 45 MPH. THIS STORM IS
CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS
OF 60 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  CROCKERVILLE BY 250 AM CDT.
  STOVER BY 255 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE LAKE OF THE OZARKS. 

LAT...LON 3863 9306 3839 9282 3826 9316 3843 9334
      3855 9318 3854 9317 3854 9308 3862 9307
TIME...MOT...LOC 0745Z 233DEG 37KT 3841 9314
WIND...HAIL 60MPH 1.00IN

$$

GRIFFIN

917 
WWUS53 KSGF 190800
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
300 AM CDT TUE APR 19 2011

MOC015-141-190815-
/O.CON.KSGF.SV.W.0049.000000T0000Z-110419T0815Z/
BENTON MO-MORGAN MO-
300 AM CDT TUE APR 19 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR WEST CENTRAL MORGAN AND NORTHEASTERN BENTON COUNTIES...

AT 257 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM NEAR STOVER...OR 10 MILES WEST OF
VERSAILLES...MOVING NORTHEAST AT 45 MPH. THIS STORM IS CAPABLE OF
PRODUCING QUARTER SIZE HAIL.

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 3863 9306 3839 9282 3833 9298 3852 9322
      3855 9318 3854 9317 3854 9308 3862 9307
TIME...MOT...LOC 0800Z 233DEG 37KT 3849 9298
WIND...HAIL <50MPH 1.00IN

$$

GRIFFIN

796 
WWUS53 KSGF 190812
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
312 AM CDT TUE APR 19 2011

MOC015-141-190822-
/O.EXP.KSGF.SV.W.0049.000000T0000Z-110419T0815Z/
BENTON MO-MORGAN MO-
312 AM CDT TUE APR 19 2011

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL MORGAN AND
NORTHEASTERN BENTON COUNTIES WILL EXPIRE AT 315 AM 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 3863 9306 3839 9282 3833 9298 3852 9322
      3855 9318 3854 9317 3854 9308 3862 9307
TIME...MOT...LOC 0812Z 233DEG 37KT 3856 9285

$$

GRIFFIN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 2:13 AM CDT	Severe Thunderstorm Warning	SGF	Camden, Miller, Morgan	47 min
Apr 19, 2:47 AM CDT	Severe Thunderstorm Warning	SGF	Miller	28 min
Apr 19, 3:06 AM CDT	Severe Thunderstorm Warning	SGF	Maries	39 min
Apr 19, 3:15 AM CDT	Severe Thunderstorm Warning	SGF	Miller	12 min
Apr 19, 4:46 AM CDT	Special Weather Statement	SGF	Maries	29 min
Apr 19, 4:55 AM CDT	Severe Thunderstorm Warning	SGF	Maries, Phelps	20 min
Apr 19, 4:03 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Stone, Taney	42 min
Apr 19, 4:25 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Stone, Taney, Webster	50 min
Apr 19, 4:47 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone, Taney	43 min
Apr 19, 4:59 PM CDT	Severe Thunderstorm Warning	SGF	Laclede, Phelps, Pulaski, Texas, Wright	46 min
Apr 19, 5:10 PM CDT	Tornado Warning	SGF	Stone, Taney	35 min
Apr 19, 5:23 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Ozark	52 min
Apr 19, 5:33 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Ozark, Taney	42 min
Apr 19, 5:36 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Phelps, Pulaski	39 min
Apr 19, 5:42 PM CDT	Severe Thunderstorm Warning	SGF	Taney	48 min
Apr 19, 5:49 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Shannon, Texas	41 min
Apr 19, 6:13 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Douglas, Howell, Ozark, Shannon, Texas	62 min
Apr 19, 6:15 PM CDT	Flash Flood Warning	SGF	Douglas, Howell, Ozark, Texas	6 hr
Apr 19, 6:27 PM CDT	Severe Thunderstorm Warning	SGF	Ozark, Taney	48 min
Apr 19, 6:40 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Oregon, Shannon	65 min

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.