Alert archive / Missouri / Tornado Warnings in 2021

Tornado Warning 7, NWS Springfield, MO

March 17, 2021Barry County, Missouri

NWS Springfield, MO issued this tornado warning at Mar 17, 2021, 5:12 PM CDT for Barry County, Missouri. It was in force for 33 min. 7 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 17, 2021, 5:12 PM CDT (22:12 UTC)
Expired: Mar 17, 2021, 5:45 PM CDT
In force: 33 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

County Barry County, MO

The radar

The Springfield radar (KSGF), 77 km from the middle of the area, began a volume at 22:13 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 17, 5:18 PM CDT	HAIL 1.25	Seligman, MO
Mar 17, 5:21 PM CDT	HAIL 1	2 Se Cassville, MO
Mar 17, 5:30 PM CDT	HAIL 1	4 Wnw Eagle Rock, MO
Mar 17, 5:30 PM CDT	TORNADO	5 Nw Eagle Rock, MO	INTERMITTENT TORNADO PATH 5 MILES NORTHWEST OF EAGLE ROCK TO 3 MILES SOUTH OF HURLEY. HARDWOOD TREES UPROOTED, SHINGLES REMOVED FROM SINGLE WIDE MOBILE HOME AND OUTBUILDINGS DESTROYED.
Mar 17, 5:34 PM CDT	HAIL 1.25	5 Nw Eagle Rock, MO	HALF DOLLAR SIZED HAIL REPORTED VIA MPING.
Mar 17, 5:52 PM CDT	HAIL 2	5 Nw Eagle Rock, MO	TWO INCH HAIL REPORTED VIA MPING.
Mar 17, 5:54 PM CDT	TSTM WND DMG	5 Wnw Shell Knob, MO	LARGE TREE WAS REPORTED DOWN ON HIGHWAY 76 BLOCKING TRAFFIC.

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
Mar 17, 2:00 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 10.2 hours before the alert went out and 33 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: 102 J/kg
Mixed-layer CIN: -235 J/kg
Mixed-layer LCL: 956 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 220 m²/s²
0-3 km storm-relative helicity: 236 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

As transmitted.

333 
WFUS53 KSGF 172212
TORSGF
MOC009-172245-
/O.NEW.KSGF.TO.W.0007.210317T2212Z-210317T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Springfield MO
512 PM CDT Wed Mar 17 2021

The National Weather Service in Springfield has issued a

* Tornado Warning for...
  Southeastern Barry County in southwestern Missouri...

* Until 545 PM CDT.
    
* At 512 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Seligman, or 11 miles south of Cassville, moving
  northeast at 25 mph.

  HAZARD...Tornado and golf ball size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Table Rock Lake...                Roaring River State Park...
  Shell Knob...                     Seligman...
  Emerald Beach...                  Eagle Rock...
  Chain-O-Lakes...                  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3669 9383 3665 9358 3661 9358 3650 9376
      3650 9398
TIME...MOT...LOC 2212Z 215DEG 22KT 3651 9390 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Wise

1 follow-up statement

221 
WWUS53 KSGF 172225
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
525 PM CDT Wed Mar 17 2021

MOC009-172245-
/O.CON.KSGF.TO.W.0007.000000T0000Z-210317T2245Z/
Barry MO-
525 PM CDT Wed Mar 17 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR
SOUTHEASTERN BARRY COUNTY...
    
At 525 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Seligman, or 7 miles south of Cassville, moving
northeast at 25 mph.

HAZARD...Tornado and golf ball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Roaring River State Park...       Shell Knob...
Eagle Rock...                     

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3669 9383 3665 9358 3651 9379 3656 9393
TIME...MOT...LOC 2225Z 215DEG 22KT 3658 9384 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Wise

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 17, 2:19 AM CDT	Flash Flood Watch	SGF	Barton, Benton, Camden, Cedar, Christian, Dade and 23 more	19 hr
Mar 17, 2:20 AM CDT	Special Weather Statement	SGF	Laclede	25 min
Mar 17, 4:22 AM CDT	Special Weather Statement	SGF	Benton	23 min
Mar 17, 5:16 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, Vernon	29 min
Mar 17, 5:33 AM CDT	Severe Thunderstorm Warning	SGF	Barton, Jasper, Newton	57 min
Mar 17, 7:43 AM CDT	Special Weather Statement	SGF	Dallas	32 min
Mar 17, 10:02 AM CDT	Areal Flood Advisory	SGF	Greene, Webster	4 hr
Mar 17, 3:27 PM CDT	Special Weather Statement	SGF	McDonald	33 min
Mar 17, 3:35 PM CDT	Severe Thunderstorm Warning	SGF	McDonald, Newton	40 min
Mar 17, 4:10 PM CDT	Severe Thunderstorm Warning	SGF	Barry, McDonald, Newton	50 min
Mar 17, 4:30 PM CDT	Special Weather Statement	SGF	McDonald	30 min
Mar 17, 4:40 PM CDT	Severe Thunderstorm Warning	SGF	McDonald, Newton	50 min
Mar 17, 4:53 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Jasper, Lawrence, Newton	52 min
Mar 17, 4:55 PM CDT	Severe Thunderstorm Warning	SGF	Barry	50 min
Mar 17, 5:10 PM CDT	Flash Flood Warning	SGF	McDonald, Newton	4 hr
Mar 17, 5:10 PM CDT	Severe Thunderstorm Warning	SGF	Barry, McDonald, Newton	35 min
Mar 17, 5:32 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Lawrence	43 min
Mar 17, 5:33 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone	57 min
Mar 17, 5:33 PM CDT	Tornado Warning	SGF	Barry, Lawrence	27 min
Mar 17, 5:38 PM CDT	Tornado Warning	SGF	Barry	37 min
Mar 17, 5:55 PM CDT	Flash Flood Warning	SGF	Barry, Lawrence, Newton	4 hr
Mar 17, 6:01 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Dade, Greene, Lawrence	44 min
Mar 17, 6:13 PM CDT	Tornado Warning	SGF	Barry, Stone	17 min
Mar 17, 6:20 PM CDT	Tornado Warning Tornado observed	SGF	Barry, Stone	25 min
Mar 17, 6:25 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Stone	50 min
Mar 17, 6:37 PM CDT	Tornado Warning	SGF	Stone	23 min
Mar 17, 6:39 PM CDT	Special Weather Statement	SGF	Greene	51 min
Mar 17, 6:48 PM CDT	Severe Thunderstorm Warning	SGF	Christian	57 min
Mar 17, 6:50 PM CDT	Flash Flood Warning	SGF	Barry, Jasper, Lawrence, Stone	4 hr

Nearby

Tornado Warnings in Missouri, 2021 Every tornado warning in 2021 Tornadoes 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.