Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 35, NWS Springfield, MO

April 28, 20216 counties in Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 28, 2021, 10:21 AM CDT for 6 counties in Missouri. It was in force for 39 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 28, 2021, 10:21 AM CDT (15:21 UTC)
Expired: Apr 28, 2021, 11:00 AM CDT
In force: 39 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Douglas County, MO, Howell County, MO, Ozark County, MO, Taney County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 91 km from the middle of the area, began a volume at 15:24 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, 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.

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, 3.4 hours before the alert went out and 121 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.

242 
WUUS53 KSGF 281521
SVRSGF
MOC067-091-153-213-225-229-281600-
/O.NEW.KSGF.SV.W.0035.210428T1521Z-210428T1600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
1021 AM CDT Wed Apr 28 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Ozark County in southwestern Missouri...
  Southeastern Webster County in southwestern Missouri...
  Douglas County in southwestern Missouri...
  Southern Wright County in southwestern Missouri...
  Eastern Taney County in southwestern Missouri...
  Western Howell County in south central Missouri...

* Until 1100 AM CDT.

* At 1021 AM CDT, severe thunderstorms were located along a line
  extending from 6 miles south of Seymour to 9 miles south of Ava to
  12 miles northwest of Price Place to 8 miles northwest of Ozark
  Isle, moving northeast at 45 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...               Norfork Lake...
  Mountain Grove...                 Ava...
  Seymour...                        Mansfield...
  Gainesville...                    Norwood...
  Bakersfield...                    Theodosia...
  Pontiac...                        Wasola...
  Sundown...                        Brixey...
  Willhoit...                       Brushyknob...
  Tecumseh...                       Caulfield...
  Udall...                          Hardenville...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3713 9279 3726 9225 3706 9225 3705 9208
      3650 9210 3650 9284
TIME...MOT...LOC 1521Z 237DEG 38KT 3706 9275 3682 9268 3666 9270 3652
9276

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, 9:37 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Ozark, Taney	68 min
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, 10:24 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.