Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 37, NWS Springfield, MO

April 28, 2021Douglas County, Howell County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 28, 2021, 11:29 AM CDT for Douglas County, Howell County, Missouri. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 28, 2021, 11:29 AM CDT (16:29 UTC)
Expired: Apr 28, 2021, 11:51 AM CDT
In force: 22 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

The radar

The Springfield radar (KSGF), 113 km from the middle of the area, began a volume at 16:32 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.

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, 4.5 hours before the alert went out and 144 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.

464 
WUUS53 KSGF 281629
SVRSGF
MOC067-091-281715-
/O.NEW.KSGF.SV.W.0037.210428T1629Z-210428T1715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
1129 AM CDT Wed Apr 28 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Northeastern Douglas County in southwestern Missouri...
  Northwestern Howell County in south central Missouri...

* Until 1215 PM CDT.

* At 1129 AM CDT, a severe thunderstorm was located 14 miles
  southwest of Willow Springs, moving northeast at 20 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Willow Springs...                 

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 3687 9229 3706 9227 3705 9194 3686 9209
TIME...MOT...LOC 1629Z 212DEG 17KT 3690 9220 

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

Perez

1 follow-up statement

340 
WWUS53 KSGF 281651
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1151 AM CDT Wed Apr 28 2021

MOC067-091-281701-
/O.CAN.KSGF.SV.W.0037.000000T0000Z-210428T1715Z/
Douglas MO-Howell MO-
1151 AM CDT Wed Apr 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DOUGLAS AND
NORTHWESTERN HOWELL COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.  However heavy rain is still possible with this
thunderstorm.

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

LAT...LON 3687 9229 3706 9227 3705 9194 3686 9209
TIME...MOT...LOC 1649Z 212DEG 17KT 3699 9213 

$$

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, 10:21 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, 11:49 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.