Alert archive / Missouri / Severe Thunderstorm Watches in 2019

Severe Thunderstorm Watch 310

June 1, 20199 counties in Kansas; 26 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Jun 1, 2019, 5:20 PM CDT for 9 counties in Kansas; 26 counties in Missouri. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 1, 2019, 5:20 PM CDT (22:20 UTC)
Expired
Jun 1, 2019, 10:24 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 35 counties

Allen County, KS, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, Barry County, MO, Barton County, MO, Benton County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Hickory County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, Maries County, MO, McDonald County, MO, Miller County, MO, Morgan County, MO, Newton County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, St. Clair County, MO, Stone County, MO, Vernon County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 103 km from the middle of the area, began a volume at 22:22 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 SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
20%
One or more EF2 to EF5 tornadoes
5%
Ten or more severe wind reports
60%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
60%
One or more hailstones of 2 inches or more
60%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 1, 5:31 PM CDTSevere Thunderstorm WarningICTAllen59 min
Jun 1, 6:07 PM CDTSevere Thunderstorm WarningSGFBourbon53 min
Jun 1, 6:25 PM CDTSevere Thunderstorm WarningICTAllen65 min
Jun 1, 6:26 PM CDTSevere Thunderstorm WarningSGFBarton, Cedar, Dade49 min
Jun 1, 6:54 PM CDTSevere Thunderstorm WarningSGFBourbon, Crawford51 min
Jun 1, 7:00 PM CDTSevere Thunderstorm WarningSGFBarton, Cedar, Dade, Jasper, Lawrence60 min
Jun 1, 7:17 PM CDTSevere Thunderstorm WarningICTAllen, Neosho58 min
Jun 1, 7:41 PM CDTSevere Thunderstorm WarningSGFBenton, Morgan49 min
Jun 1, 7:44 PM CDTSevere Thunderstorm WarningSGFBourbon, Crawford61 min
Jun 1, 7:59 PM CDTSevere Thunderstorm WarningSGFCherokee, Crawford46 min
Jun 1, 8:08 PM CDTSevere Thunderstorm WarningSGFMorgan37 min
Jun 1, 8:45 PM CDTSevere Thunderstorm WarningSGFCherokee, Crawford45 min
Jun 1, 8:46 PM CDTSevere Thunderstorm WarningSGFMorgan29 min
Jun 1, 8:48 PM CDTFlash Flood WarningSGFCrawford2 hr
Jun 1, 9:03 PM CDTSevere Thunderstorm WarningSGFMiller, Morgan40 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 10.3 hours before the alert went out and 101 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 2019-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 199 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2019-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 square meters per square second.19395878Sfc1 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
199 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
1457 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

997 
WWUS20 KWNS 012218
SEL0  
SPC WW 012218
KSZ000-MOZ000-020500-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 310
NWS Storm Prediction Center Norman OK
520 PM CDT Sat Jun 1 2019

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Southeast Kansas
  Southwest Missouri

* Effective this Saturday afternoon from 520 PM until Midnight
  CDT.

* Primary threats include...
  Scattered large hail and isolated very large hail events to 2
    inches in diameter likely
  Scattered damaging wind gusts to 70 mph likely
  A tornado or two possible

SUMMARY...Thunderstorms forming near the Kansas/Missouri border may
back build a little in Kansas, and likely persist through late
evening while spreading southeastward into southwest Missouri. 
Large hail and damaging winds will be the primary threats with the
clusters and embedded supercell structures.

The severe thunderstorm watch area is approximately along and 35
statute miles north and south of a line from 25 miles west southwest
of Chanute KS to 65 miles east northeast of Springfield MO. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU0).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 303...WW 304...WW
305...WW 306...WW 307...WW 308...WW 309...

AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
31020.

...Thompson

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 1, 1:53 PM CDTSevere Thunderstorm WatchSPCMorton, Stevens9 hr
Jun 1, 3:02 PM CDTMesoscale DiscussionSPCAtchison, Douglas, Franklin, Jefferson, Johnson, Leavenworth and 3 more118 min
Jun 1, 3:33 PM CDTSevere Thunderstorm WatchSPCBourbon, Johnson, Linn, Miami7 hr
Jun 1, 5:00 PM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Elk, Labette and 4 more60 min
Jun 1, 6:07 PM CDTMesoscale DiscussionSPCJohnson, Linn, Miami83 min
Jun 1, 2:27 PM CDTMesoscale DiscussionSPCButler, Carter, Douglas, Howell, Oregon, Ozark and 7 more93 min

Nearby

Severe Thunderstorm Watches in Missouri, 2019Severe Thunderstorm Watches in Kansas, 2019Every severe thunderstorm watch in 2019

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.