Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 43, NWS Springfield, MO

May 9, 2021McDonald County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at May 9, 2021, 2:23 AM CDT for McDonald County, Missouri. It was in force for 39 min. 4 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: May 9, 2021, 2:23 AM CDT (07:23 UTC)
Expired: May 9, 2021, 3:02 AM CDT
In force: 39 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County McDonald County, MO

The radar

The Tulsa radar (KINX), 114 km from the middle of the area, began a volume at 07:25 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
May 9, 2:32 AM CDT	HAIL 1.5	8 Se Pineville, MO	VIA SOCIAL MEDIA. TIME ESTIMATED BY RADAR.
May 9, 2:38 AM CDT	HAIL 1.25	8 Ssw Powell, MO	QUARTER TO HALF DOLLAR SIZED HAIL REPORTED JUST NORTH OF THE ARKANSAS STATE LINE. TIME ESTIMATED FROM RADAR.
May 9, 2:40 AM CDT	HAIL 1.5	8 Ssw Powell, MO
May 9, 2:53 AM CDT	HAIL 1	9 Sse Powell, MO	PUBLIC REPORT RELAYED VIA BROADCAST MEDIA OF QUARTER SIZE HAIL IN JACKET, MO. 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 00:00Z, 7.4 hours before the alert went out and 65 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: 2 J/kg
Mixed-layer CIN: -429 J/kg
Mixed-layer LCL: 2095 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 370 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

935 
WUUS53 KSGF 090723
SVRSGF
MOC119-090815-
/O.NEW.KSGF.SV.W.0043.210509T0723Z-210509T0815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
223 AM CDT Sun May 9 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Southern McDonald County in southwestern Missouri...

* Until 315 AM CDT.

* At 222 AM CDT, a severe thunderstorm was located near Noel, or 7
  miles southwest of Pineville, moving east at 40 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...
  Noel...                           Pineville...
  Powell...                         

This includes Interstate 49 between mile markers 1 and 3.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3650 9457 3658 9458 3664 9407 3650 9407
TIME...MOT...LOC 0722Z 266DEG 37KT 3650 9446 

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

Lindenberg

2 follow-up statements

894 
WWUS53 KSGF 090733
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
233 AM CDT Sun May 9 2021

MOC119-090815-
/O.CON.KSGF.SV.W.0043.000000T0000Z-210509T0815Z/
McDonald MO-
233 AM CDT Sun May 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR SOUTHEASTERN MCDONALD COUNTY...

At 233 AM CDT, a severe thunderstorm was located near Bella Vista,
moving east at 45 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Pineville...                      Powell...

This includes Interstate 49 near mile marker 2.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3650 9439 3659 9441 3664 9407 3650 9407
TIME...MOT...LOC 0733Z 265DEG 41KT 3651 9428 

HAIL...1.25IN
WIND...60MPH
 
$$

Lindenberg

502 
WWUS53 KSGF 090802
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
302 AM CDT Sun May 9 2021

MOC119-090812-
/O.CAN.KSGF.SV.W.0043.000000T0000Z-210509T0815Z/
McDonald MO-
302 AM CDT Sun May 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MCDONALD COUNTY
IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

LAT...LON 3650 9439 3659 9441 3664 9407 3650 9407
TIME...MOT...LOC 0801Z 266DEG 37KT 3653 9390 

$$

Lindenberg

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 8:02 PM CDT	River Flood Warning	SGF	Vernon	3 days
May 9, 1:58 AM CDT	Special Weather Statement	SGF	Morgan	32 min
May 9, 2:10 AM CDT	Special Weather Statement	SGF	Newton	50 min
May 9, 2:28 AM CDT	Special Weather Statement	SGF	Morgan	47 min
May 9, 2:44 AM CDT	Severe Thunderstorm Warning	SGF	Barry, McDonald	46 min
May 9, 2:47 AM CDT	Special Weather Statement	SGF	Lawrence, Newton	43 min
May 9, 3:14 AM CDT	Special Weather Statement	SGF	Christian, Greene, Webster	46 min
May 9, 3:17 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone	43 min
May 9, 3:22 AM CDT	Severe Thunderstorm Warning	SGF	Greene, Webster	38 min
May 9, 3:23 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Greene, Lawrence, Stone	52 min
May 9, 3:37 AM CDT	Severe Thunderstorm Warning	SGF	Dade, Greene, Lawrence, Polk	38 min
May 9, 3:39 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Stone, Taney	51 min
May 9, 3:46 AM CDT	Areal Flood Advisory	SGF	Cedar, St. Clair, Vernon	6 hr
May 9, 4:04 AM CDT	Special Weather Statement	SGF	Christian, Greene, Webster	41 min
May 9, 4:09 AM CDT	Severe Thunderstorm Warning	SGF	Dallas, Greene, Polk, Webster	51 min
May 9, 4:11 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Ozark, Taney	49 min
May 9, 4:23 AM CDT	Areal Flood Advisory	SGF	Cedar, Dade, Greene, Polk, St. Clair, Vernon	6 hr
May 9, 4:44 AM CDT	Special Weather Statement	SGF	Wright	46 min
May 9, 4:56 AM CDT	Special Weather Statement	SGF	Douglas, Howell	49 min
May 9, 5:08 AM CDT	Areal Flood Advisory	SGF	Christian, Dallas, Greene, Laclede, Polk, Webster and 1 more	6 hr
May 9, 5:26 AM CDT	Areal Flood Advisory	SGF	Christian, Douglas, Ozark, Taney, Webster, Wright	6 hr
May 9, 5:32 AM CDT	Special Weather Statement	SGF	Ozark	43 min
May 9, 6:12 AM CDT	Areal Flood Advisory	SGF	Barton, Cedar, Dade, Greene, Jasper, Lawrence and 1 more	6 hr
May 9, 6:53 AM CDT	Areal Flood Advisory	SGF	Barry, Christian, Greene, Jasper, Lawrence, Newton and 3 more	6 hr
May 9, 7:14 AM CDT	Special Weather Statement	SGF	Cedar	46 min
May 9, 7:38 AM CDT	Special Weather Statement	SGF	Dade	52 min
May 9, 7:48 AM CDT	River Flood Warning	SGF	Bates, Vernon	23 hr
May 9, 8:59 AM CDT	Severe Thunderstorm Warning	SGF	Barry, Stone	31 min
May 9, 9:51 AM CDT	Areal Flood Advisory	SGF	Barton, Cedar, Dade, Dallas, Polk, Vernon	6 hr
May 9, 9:56 AM CDT	Severe Thunderstorm Warning	SGF	Stone, Taney	34 min
May 9, 10:35 AM CDT	Special Weather Statement	SGF	Ozark	25 min
May 9, 10:57 AM CDT	Areal Flood Advisory	SGF	Barry, Christian, Douglas, Greene, Lawrence, Stone and 3 more	10 hr
May 9, 11:21 AM CDT	Areal Flood Advisory	SGF	Howell, Ozark	14 hr
May 9, 2:59 PM CDT	Areal Flood Warning	SGF	Barry, Stone	4 hr
May 9, 3:18 PM CDT	Areal Flood Warning	SGF	Christian, Greene	10 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.