Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 101, NWS Springfield, MO

July 9, 2021Howell County, Oregon County, Shannon County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jul 9, 2021, 6:10 PM CDT for Howell County, Oregon County, Shannon County, Missouri. It was in force for 50 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: Jul 9, 2021, 6:10 PM CDT (23:10 UTC)
Expired: Jul 9, 2021, 7:00 PM CDT
In force: 50 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Howell County, MO, Oregon County, MO, Shannon County, MO

The radar

The Springfield radar (KSGF), 163 km from the middle of the area, began a volume at 23:09 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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.2 hours before the alert went out and 192 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: 1735 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 940 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: -21 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

As transmitted.

105 
WUUS53 KSGF 092310
SVRSGF
MOC091-149-203-100000-
/O.NEW.KSGF.SV.W.0101.210709T2310Z-210710T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
610 PM CDT Fri Jul 9 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Southwestern Shannon County in south central Missouri...
  Northeastern Howell County in south central Missouri...
  Northwestern Oregon County in south central Missouri...

* Until 700 PM CDT.

* At 610 PM CDT, a severe thunderstorm was located 9 miles northeast
  of West Plains, moving east at 20 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...
  Thomasville...                    Peace Valley...
  Greer...                          White Church...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3675 9182 3692 9184 3700 9137 3673 9135
TIME...MOT...LOC 2310Z 267DEG 18KT 3685 9176 

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

Wise

1 follow-up statement

152 
WWUS53 KSGF 092350
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
650 PM CDT Fri Jul 9 2021

MOC091-149-203-100000-
/O.EXP.KSGF.SV.W.0101.000000T0000Z-210710T0000Z/
Shannon MO-Howell MO-Oregon MO-
650 PM CDT Fri Jul 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SHANNON...
NORTHEASTERN HOWELL AND NORTHWESTERN OREGON COUNTIES WILL EXPIRE AT
700 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However heavy rain
is still possible with this thunderstorm.

LAT...LON 3675 9182 3692 9184 3700 9137 3673 9135
TIME...MOT...LOC 2350Z 267DEG 18KT 3686 9153 

$$

Wise

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 6:01 PM CDT	Special Weather Statement	SGF	Howell	29 min
Jul 9, 6:34 PM CDT	Special Weather Statement	SGF	Douglas	41 min
Jul 9, 6:59 PM CDT	Special Weather Statement	SGF	Howell	46 min

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.