Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 34, NWS Springfield, MO

April 28, 20214 counties in Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 28, 2021, 9:37 AM CDT for 4 counties in Missouri. It was in force for 68 min. 5 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: Apr 28, 2021, 9:37 AM CDT (14:37 UTC)
Expired: Apr 28, 2021, 10:45 AM CDT
In force: 68 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

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

The radar

The Springfield radar (KSGF), 69 km from the middle of the area, began a volume at 14:38 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 28, 9:37 AM CDT	TORNADO	2 N Walnut Shade, MO	CORRECTS PREVIOUS TORNADO REPORT FROM 2 N WALNUT SHADE. NWS STORM SURVEY DETERMINED AN EF0 TORNADO WITH WINDS ESTIMATED AT 76 MPH BRIEFLY TOUCHED DOWN AT THIS LOCATION. MINOR RESIDENTIAL DAMAGE ALONG WITH SNAPPED AND UPROOTED TREES WERE OBSERVED. ONE LARGE TRE
Apr 28, 9:37 AM CDT	TORNADO	2 N Walnut Shade, MO	NWS STORM SURVEY DETERMINED AN EF0 TORNADO WITH WINDS ESTIMATED AT 70 MPH BRIEFLY TOUCHED DOWN AT THIS LOCATION. MINOR RESIDENTIAL DAMAGE ALONG WITH SNAPPED AND UPROOTED TREES WERE OBSERVED. ONE LARGE TREE FELL INTO A HOUSE CAUSING SIGNIFICANT DAMAGE. PATH WID
Apr 28, 9:56 AM CDT	TORNADO	5 Wnw Garrison, MO	NWS STORM SURVEY DETERMINED AN EF0 TORNADO WITH WINDS ESTIMATED AT 76 MPH BRIEFLY TOUCHED DOWN AT THIS LOCATION. TREES WERE UPROOTED AND A SHED WAS DESTROYED. PATH WIDTH WAS 50 YARDS AND LENGTH WAS AROUND A HALF MILE.
Apr 28, 10:27 AM CDT	TSTM WND DMG	2 Nne Ava, MO	THREE LARGE OUTBUILDINGS DAMAGED TO DESTROYED. DEBRIS BLOWN NORTHERLY. DELAYED REPORT FROM PREVIOUS NWS SURVEY.
Apr 28, 10:30 AM CDT	TSTM WND DMG	2 Ese Oldfield, MO	THE ROOF WAS TORN OFF A HOME EAST OF OLDFIELD.

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
Apr 28, 9:33 AM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 2.6 hours before the alert went out and 80 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: 34 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 1441 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

199 
WUUS53 KSGF 281437
SVRSGF
MOC043-067-153-213-281545-
/O.NEW.KSGF.SV.W.0034.210428T1437Z-210428T1545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
937 AM CDT Wed Apr 28 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Western Ozark County in southwestern Missouri...
  Western Douglas County in southwestern Missouri...
  Southeastern Christian County in southwestern Missouri...
  Taney County in southwestern Missouri...

* Until 1045 AM CDT.

* At 937 AM CDT, severe thunderstorms were located along a line
  extending from 7 miles southeast of Highlandville to near Forsyth
  to Omaha to Carrollton, moving east at 35 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Lake Taneycomo...                 Bull Shoals Lake...
  Hollister...                      Ava...
  Forsyth...                        Merriam Woods...
  Kissee Mills...                   Rockaway Beach...
  Bull Creek...                     Taneyville...
  Theodosia...                      Kirbyville...
  Sundown...                        Oldfield...
  Elkhead...                        Chestnutridge...
  Powersite...                      Protem...
  Thornfield...                     Rome...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 300 PM CDT for southwestern
Missouri.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3664 9320 3689 9328 3707 9290 3707 9263
      3681 9259 3657 9259 3650 9268 3650 9323
TIME...MOT...LOC 1437Z 251DEG 32KT 3685 9321 3666 9314 3644 9320 3628
9332

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

Perez

1 follow-up statement

488 
WWUS53 KSGF 281516
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1016 AM CDT Wed Apr 28 2021

MOC043-067-153-213-281545-
/O.CON.KSGF.SV.W.0034.000000T0000Z-210428T1545Z/
Ozark MO-Douglas MO-Christian MO-Taney MO-
1016 AM CDT Wed Apr 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT
FOR WESTERN OZARK...WESTERN DOUGLAS...EAST CENTRAL CHRISTIAN AND
EASTERN TANEY COUNTIES...

At 1016 AM CDT, severe thunderstorms were located along a line
extending from 7 miles west of Ava to 16 miles east of Taneyville to
8 miles northeast of Diamond City to Lead Hill, moving east at 35
mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Bull Shoals Lake...               Ava...
Theodosia...                      Sundown...
Oldfield...                       Brownbranch...
Elkhead...                        Bruner...
Keltner...                        Protem...
Thornfield...                     Rome...
Squires...                        Chadwick...
Goodhope...                       Long Run...
Isabella...                       Dogwood...
Rueter...                         

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 300 PM CDT for southwestern
Missouri.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3683 9285 3694 9308 3699 9307 3705 9295
      3707 9289 3707 9263 3681 9259 3657 9259
      3650 9268 3650 9291 3673 9282
TIME...MOT...LOC 1516Z 251DEG 32KT 3696 9281 3677 9274 3655 9280 3639
9292

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

Perez

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 4:48 AM CDT	Special Weather Statement	SGF	Dade, Greene, Lawrence	27 min
Apr 28, 8:01 AM CDT	Severe Thunderstorm Warning	SGF	Barry	44 min
Apr 28, 8:25 AM CDT	Flash Flood Warning	SGF	Barry, McDonald	6 hr
Apr 28, 8:27 AM CDT	Severe Thunderstorm Warning	SGF	Barry	33 min
Apr 28, 8:46 AM CDT	Flash Flood Warning	SGF	Barry, Stone	6 hr
Apr 28, 8:51 AM CDT	Severe Thunderstorm Warning	SGF	Stone	39 min
Apr 28, 9:03 AM CDT	Tornado Warning	SGF	Stone	27 min
Apr 28, 9:14 AM CDT	Tornado Warning	SGF	Taney	31 min
Apr 28, 9:18 AM CDT	Severe Thunderstorm Warning	SGF	Stone, Taney	42 min
Apr 28, 9:33 AM CDT	Flash Flood Warning	SGF	Christian, Taney	6 hr
Apr 28, 9:43 AM CDT	Tornado Warning	SGF	Christian, Taney	32 min
Apr 28, 9:55 AM CDT	River Flood Warning	SGF	Shannon	44 hr
Apr 28, 9:55 AM CDT	River Flood Warning	SGF	Pulaski	11 hr
Apr 28, 9:55 AM CDT	River Flood Warning	SGF	Stone	10 hr
Apr 28, 9:55 AM CDT	River Flood Warning	SGF	McDonald	23 hr
Apr 28, 9:55 AM CDT	River Flood Warning	SGF	Shannon	51 hr
Apr 28, 10:14 AM CDT	Tornado Warning	SGF	Christian, Douglas, Webster	31 min
Apr 28, 10:15 AM CDT	Flash Flood Warning	SGF	Douglas, Ozark, Taney, Webster, Wright	6 hr
Apr 28, 10:21 AM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Ozark, Taney, Webster, Wright	39 min
Apr 28, 10:24 AM CDT	Tornado Warning	SGF	Ozark	36 min
Apr 28, 10:44 AM CDT	Flash Flood Warning	SGF	Douglas, Ozark	6 hr
Apr 28, 10:58 AM CDT	Tornado Warning	SGF	Douglas, Ozark	32 min
Apr 28, 11:12 AM CDT	Flash Flood Warning	SGF	Howell, Texas	6 hr
Apr 28, 11:27 AM CDT	Severe Thunderstorm Warning	SGF	Wright	33 min
Apr 28, 11:29 AM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell	22 min
Apr 28, 11:49 AM CDT	Severe Thunderstorm Warning	SGF	Howell, Oregon, Shannon	41 min
Apr 28, 12:01 PM CDT	Flash Flood Warning	SGF	Dent, Laclede, Phelps, Pulaski, Texas, Wright	6 hr
Apr 28, 12:02 PM CDT	Tornado Warning	SGF	Howell, Oregon, Shannon	28 min
Apr 28, 12:07 PM CDT	Flash Flood Warning	SGF	Oregon, Shannon	6 hr
Apr 28, 12:30 PM CDT	Severe Thunderstorm Warning	SGF	Oregon, Shannon	30 min
Apr 28, 1:48 PM CDT	Flash Flood Warning	SGF	McDonald	6 hr
Apr 28, 2:09 PM CDT	Flash Flood Warning	SGF	McDonald	6 hr
Apr 28, 2:29 PM CDT	Areal Flood Warning	SGF	Barry, Christian, Douglas, McDonald, Ozark, Stone and 2 more	29 hr
Apr 28, 2:39 PM CDT	Areal Flood Warning	SGF	Douglas, Ozark, Webster, Wright	24 hr
Apr 28, 3:45 PM CDT	Areal Flood Warning	SGF	Dent, Howell, Oregon, Phelps, Pulaski, Shannon and 1 more	24 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2021 Every severe thunderstorm warning in 2021

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.