Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 85, NWS Springfield, MO

June 11, 2021Douglas County, Ozark County, Taney County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jun 11, 2021, 8:33 PM CDT for Douglas County, Ozark County, Taney County, Missouri. It was in force for 42 min. 3 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
Jun 11, 2021, 8:33 PM CDT (01:33 UTC)
Expired
Jun 11, 2021, 9:15 PM CDT
In force
42 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Douglas County, MO, Ozark County, MO, Taney County, MO

The radar

The Springfield radar (KSGF), 81 km from the middle of the area, began a volume at 01:36 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

TimeReportWhereRemark
Jun 11, 8:40 PM CDTTSTM WND DMG4 Se Rome, MONUMEROUS REPORTS OF OUTAGES DUE TO TREE LIMBS FROM SOUTHWEST DOUGLAS COUNTY INTO NORTHWESTERN OZARK COUNTY PER ELECTRIC COMPANY.
Jun 11, 8:44 PM CDTTSTM WND DMGThornfield, MOWHOLE TREE DOWN ON JJ BETWEEN HWY 5 AND THORNFIELD, COMPLETELY BLOCKING ROAD. ANOTHER TREE DOWN ON 95 BETWEEN THORNFIELD AND HWY 5, PARTLY BLOCKING 95.
Jun 11, 9:04 PM CDTTSTM WND DMGTheodosia, MODEPUTY REPORTING TREES AND TELEPHONE LINES DOWN IN THEODOSIA ON HWY 160. TIME BASED ON RADAR.

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.

IssuedProductOfficeLasted
Jun 11, 3:54 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.6 hours before the alert went out and 98 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-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2021-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2670 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2021-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -54 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2670 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1310 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-54 m²/s²
0-3 km storm-relative helicity
-83 m²/s²
Significant tornado parameter
-1.0
Supercell composite
-10.3

Open this sounding in Storm Lab

The text

As transmitted.

094 
WUUS53 KSGF 120133
SVRSGF
MOC067-153-213-120215-
/O.NEW.KSGF.SV.W.0085.210612T0133Z-210612T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
833 PM CDT Fri Jun 11 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Northwestern Ozark County in southwestern Missouri...
  Western Douglas County in southwestern Missouri...
  Northeastern Taney County in southwestern Missouri...

* Until 915 PM CDT.

* At 833 PM CDT, a severe thunderstorm was located 9 miles south of
  Ava, moving southeast at 30 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...
  Bull Shoals Lake...               Ava...
  Theodosia...                      Wasola...
  Sundown...                        Brixey...
  Noble...                          Willhoit...
  Brownbranch...                    Thornfield...
  Rome...                           Squires...
  Rockbridge...                     Goodhope...
  Long Run...                       

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3650 9278 3681 9291 3698 9291 3704 9261
      3675 9227
TIME...MOT...LOC 0133Z 318DEG 24KT 3682 9272 

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

Titus
1 follow-up statement
155 
WWUS53 KSGF 120152
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
852 PM CDT Fri Jun 11 2021

MOC067-153-213-120215-
/O.CON.KSGF.SV.W.0085.000000T0000Z-210612T0215Z/
Ozark MO-Douglas MO-Taney MO-
852 PM CDT Fri Jun 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR NORTHWESTERN OZARK...SOUTH CENTRAL DOUGLAS AND EAST CENTRAL TANEY
COUNTIES...

At 851 PM CDT, severe thunderstorms were located along a line
extending from 9 miles north of Gainesville to 11 miles northwest of
Price Place, moving south at 30 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...
Bull Shoals Lake...               Theodosia...
Wasola...                         Sundown...
Thornfield...                     Brixey...
Noble...                          Willhoit...
Rockbridge...                     Long Run...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3671 9287 3672 9287 3686 9239 3675 9228
      3650 9278
TIME...MOT...LOC 0151Z 344DEG 27KT 3675 9244 3659 9277 

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

Titus

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 7:04 PM CDTSevere Thunderstorm WarningSGFGreene, Webster56 min
Jun 11, 7:41 PM CDTSevere Thunderstorm WarningSGFChristian, Douglas, Stone49 min
Jun 11, 7:43 PM CDTSevere Thunderstorm WarningSGFJasper62 min
Jun 11, 7:55 PM CDTFlash Flood WarningSGFGreene, Webster6 hr
Jun 11, 8:13 PM CDTFlash Flood WarningSGFChristian, Douglas6 hr
Jun 11, 8:26 PM CDTSevere Thunderstorm WarningSGFNewton35 min
Jun 11, 8:39 PM CDTFlash Flood WarningSGFDouglas, Ozark, Taney6 hr
Jun 11, 8:53 PM CDTSevere Thunderstorm WarningSGFOzark37 min
Jun 11, 11:10 PM CDTHigh Wind WarningSGFChristian, Stone, Taney79 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2021Every 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.