Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 2, NWS Springfield, MO

March 11, 2021Dade County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Mar 11, 2021, 9:01 AM CST for Dade County, Missouri. It was in force for 29 min. 2 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: Mar 11, 2021, 9:01 AM CST (15:01 UTC)
Expired: Mar 11, 2021, 9:30 AM CST
In force: 29 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Dade County, MO

The radar

The Springfield radar (KSGF), 40 km from the middle of the area, began a volume at 15:04 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
Mar 11, 9:02 AM CST	HAIL 0.7	1 Se Greenfield, MO	HAIL LASTED A FEW MINUTES.
Mar 11, 9:04 AM CST	HAIL 1	1 Ne South Greenfield, MO	SEVERAL SOCIAL MEDIA REPORTS RELAYED VIA BROADCAST MEDIA PLATFORM OF QUARTER SIZE HAIL IN SOUTH GREENFIELD. TIME ESTIMATED FROM RADAR.

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 12:00Z, 3.0 hours before the alert went out and 57 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: 286 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 652 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 237 m²/s²
0-3 km storm-relative helicity: 303 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

As transmitted.

005 
WUUS53 KSGF 111501
SVRSGF
MOC057-111530-
/O.NEW.KSGF.SV.W.0002.210311T1501Z-210311T1530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
901 AM CST Thu Mar 11 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Southeastern Dade County in southwestern Missouri...

* Until 930 AM CST.

* At 900 AM CST, a severe thunderstorm was located over Greenfield,
  moving east at 50 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Stockton Lake...                  Greenfield...
  Lockwood...                       Dadeville...
  South Greenfield...               

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3734 9397 3738 9398 3753 9362 3748 9362
      3739 9363
TIME...MOT...LOC 1500Z 248DEG 42KT 3738 9385 

HAIL...1.00IN
WIND...60MPH
 
$$

Wise

1 follow-up statement

454 
WWUS53 KSGF 111523
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
923 AM CST Thu Mar 11 2021

MOC057-111533-
/O.EXP.KSGF.SV.W.0002.000000T0000Z-210311T1530Z/
Dade MO-
923 AM CST Thu Mar 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DADE COUNTY WILL
EXPIRE AT 930 AM CST...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3734 9397 3738 9398 3753 9362 3748 9362
      3739 9363
TIME...MOT...LOC 1523Z 248DEG 42KT 3748 9354 

$$

Wise

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 11, 3:41 AM CST	Flood Watch	SGF	Barry, Barton, Benton, Camden, Cedar, Christian and 28 more	59 hr
Mar 11, 8:49 AM CST	River Flood Watch	SGF	Pulaski	4 days
Mar 11, 8:49 AM CST	River Flood Watch	SGF	Pulaski	70 hr
Mar 11, 8:49 AM CST	River Flood Watch	SGF	Phelps	5 days
Mar 11, 8:54 AM CST	Special Weather Statement	SGF	Dade	51 min
Mar 11, 9:15 AM CST	Special Weather Statement	SGF	Polk	45 min
Mar 11, 10:09 AM CST	River Flood Warning	SGF	Cedar	6 days
Mar 11, 10:09 AM CST	River Flood Warning	SGF	Vernon	12 days
Mar 11, 10:33 AM CST	River Flood Warning	SGF	Vernon	11 days
Mar 11, 10:39 AM CST	River Flood Watch	SGF	Bates, Vernon	21 days
Mar 11, 10:39 AM CST	River Flood Watch	SGF	St. Clair	5 days
Mar 11, 10:54 AM CST	Special Weather Statement	SGF	Pulaski	51 min
Mar 11, 11:18 AM CST	Special Weather Statement	SGF	Phelps	57 min
Mar 11, 1:31 PM CST	Areal Flood Advisory	SGF	Dallas, Greene, Laclede, Webster, Wright	6 hr
Mar 11, 2:00 PM CST	River Flood Warning	SGF	Pulaski	4 days
Mar 11, 2:00 PM CST	River Flood Warning	SGF	Pulaski	66 hr
Mar 11, 2:00 PM CST	River Flood Warning	SGF	Bates, Vernon	21 days
Mar 11, 2:00 PM CST	River Flood Warning	SGF	Phelps	5 days
Mar 11, 2:00 PM CST	River Flood Warning	SGF	St. Clair	22 days

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.