Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 75, NWS Springfield, MO

June 11, 2021Camden County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Jun 11, 2021, 5:58 PM CDT for Camden County, Missouri. It was in force for 62 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
Jun 11, 2021, 5:58 PM CDT (22:58 UTC)
Expired
Jun 11, 2021, 7:00 PM CDT
In force
62 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
70.0 mph

County Camden County, MO

The radar

The Springfield radar (KSGF), 113 km from the middle of the area, began a volume at 23:01 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, 6:15 PM CDTTSTM WND DMG5 Ne Knobby, MONUMEROUS OUTAGES IN NORTHWESTERN CAMDEN COUNTY PER ELECTRIC COOP.
Jun 11, 6:44 PM CDTHAIL 1Macks Creek, MO
Jun 11, 6:51 PM CDTTSTM WND DMG3 Wsw Osage Beach, MOTREES DOWN ON DUDE RANCH RD AND LEDGES DR. IN OSAGE BEACH.
Jun 11, 7:02 PM CDTHAIL 1Osage Beach, MO

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 12:00Z, 11.0 hours before the alert went out and 163 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 12:00Z on 2021-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2202 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2021-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939Sfc1 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
2202 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
774 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

As transmitted.

686 
WUUS53 KSGF 112258
SVRSGF
MOC029-120000-
/O.NEW.KSGF.SV.W.0075.210611T2258Z-210612T0000Z/

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

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Camden County in central Missouri...

* Until 700 PM CDT.

* At 557 PM CDT, a severe thunderstorm was located 11 miles west of
  Laurie, or 17 miles southwest of Versailles, moving southeast at 20
  mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* Locations impacted include...
  Lake of The Ozarks...             Ha Ha Tonka State Park...
  Lake of The Ozarks State Park...  Osage Beach...
  Camdenton...                      Village of Four Seasons...
  Sunrise Beach...                  Macks Creek...
  Linn Creek...                     Climax Springs...
  Green Bay Terrace...              Hurricane Deck...
  Old Linn Creek...                 Branch...
  Barnumton...                      Purvis...
  Roach...                          

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

If on or near Lake of the Ozarks, get away from the water and move 
indoors or inside a vehicle. Remember, lightning can strike out to 
15 miles from the parent thunderstorm. If you can hear thunder, you 
are close enough to be struck by lightning. Move to safe shelter 
now!  Do not be caught on the water in a thunderstorm.

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

&&

LAT...LON 3822 9299 3820 9302 3819 9301 3823 9296
      3821 9293 3820 9296 3819 9294 3819 9277
      3822 9276 3823 9271 3821 9265 3817 9264
      3817 9261 3814 9259 3796 9265 3790 9293
      3790 9307 3827 9307
TIME...MOT...LOC 2257Z 316DEG 17KT 3824 9304 

HAIL...1.00IN
WIND...70MPH
 
$$

Cramer

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 5:06 PM CDTSevere Thunderstorm WarningSGFBenton, Morgan54 min
Jun 11, 5:39 PM CDTSevere Thunderstorm WarningSGFBenton, Hickory, St. Clair66 min
Jun 11, 6:41 PM CDTSevere Thunderstorm WarningSGFCedar, Polk64 min
Jun 11, 6:55 PM CDTSevere Thunderstorm WarningSGFCamden, Dallas, Laclede35 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.