Alert archive / Missouri / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 310, NWS Springfield, MO

August 30, 2018Barry County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Aug 30, 2018, 7:52 AM CDT for Barry County, Missouri. It was in force for 23 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: Aug 30, 2018, 7:52 AM CDT (12:52 UTC)
Expired: Aug 30, 2018, 8:15 AM CDT
In force: 23 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Barry County, MO

The radar

The Springfield radar (KSGF), 76 km from the middle of the area, began a volume at 12:50 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, 0.9 hours before the alert went out and 30 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: 1450 J/kg
Mixed-layer CIN: -147 J/kg
Mixed-layer LCL: 792 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

090 
WUUS53 KSGF 301252
SVRSGF
MOC009-301315-
/O.NEW.KSGF.SV.W.0310.180830T1252Z-180830T1315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
752 AM CDT THU AUG 30 2018

The National Weather Service in Springfield has issued a

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

* Until 815 AM CDT.

* At 752 AM CDT, a severe thunderstorm was located over Cassville,
  moving east at 15 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...
  Table Rock Lake...                Roaring River State Park...
  Cassville...                      Shell Knob...
  Exeter...                         Emerald Beach...
  Eagle Rock...                     Arrow Point...
  Jenkins...                        

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 3654 9391 3671 9397 3682 9364 3655 9358
TIME...MOT...LOC 1252Z 255DEG 13KT 3665 9386 

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

Terry

1 follow-up statement

678 
WWUS53 KSGF 301309
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
809 AM CDT THU AUG 30 2018

MOC009-301319-
/O.EXP.KSGF.SV.W.0310.000000T0000Z-180830T1315Z/
Barry MO-
809 AM CDT THU AUG 30 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN BARRY COUNTY WILL
EXPIRE AT 815 AM 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 3654 9391 3671 9397 3682 9364 3655 9358
TIME...MOT...LOC 1309Z 255DEG 13KT 3667 9379 

$$

Hatch

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 29, 8:08 PM CDT	Flash Flood Watch	SGF	Barry, Barton, Benton, Camden, Cedar, Christian and 21 more	21 hr
Aug 29, 9:58 PM CDT	Areal Flood Warning	SGF	Douglas, Webster, Wright	6 hr
Aug 30, 7:37 AM CDT	Special Weather Statement	SGF	Christian	23 min
Aug 30, 7:44 AM CDT	Severe Thunderstorm Warning	SGF	Christian, Stone	31 min
Aug 30, 7:54 AM CDT	Severe Thunderstorm Warning	SGF	Vernon	51 min
Aug 30, 8:30 AM CDT	Special Weather Statement	SGF	Christian	45 min
Aug 30, 8:54 AM CDT	Severe Thunderstorm Warning	SGF	St. Clair	36 min
Aug 30, 9:00 AM CDT	Severe Thunderstorm Warning	SGF	Vernon	45 min
Aug 30, 9:05 AM CDT	Special Weather Statement	SGF	Cedar	40 min
Aug 30, 9:12 AM CDT	Areal Flood Advisory	SGF	Christian, Greene, Stone	6 hr
Aug 30, 9:18 AM CDT	Special Weather Statement	SGF	Greene	42 min
Aug 30, 10:04 AM CDT	Areal Flood Advisory	SGF	Barton, Vernon	6 hr
Aug 30, 10:26 AM CDT	Flash Flood Warning	SGF	Barton, Jasper	6 hr
Aug 30, 10:34 AM CDT	Flash Flood Warning	SGF	Dade, Greene, Polk	6 hr
Aug 30, 10:49 AM CDT	Severe Thunderstorm Warning	SGF	Greene	26 min
Aug 30, 11:01 AM CDT	Flash Flood Warning	SGF	Christian, Greene, Lawrence, Stone	5 hr
Aug 30, 11:30 AM CDT	Areal Flood Advisory	SGF	Benton, Camden, Dallas, Hickory, Miller, Morgan	6 hr
Aug 30, 1:05 PM CDT	Areal Flood Advisory	SGF	Barton	4 hr
Aug 30, 2:35 PM CDT	Special Weather Statement	SGF	Jasper, Newton	40 min
Aug 30, 3:44 PM CDT	Special Weather Statement	SGF	McDonald	46 min
Aug 30, 4:15 PM CDT	Areal Flood Warning	SGF	Barry, Christian, Dade, Greene, Jasper, Lawrence and 2 more	18 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2018 Every severe thunderstorm warning in 2018

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.