Alert archive / Missouri / Severe Thunderstorm Watches in 2017

Severe Thunderstorm Watch 344

June 17, 20176 counties in Kansas; 24 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Jun 17, 2017, 12:09 AM CDT for 6 counties in Kansas; 24 counties in Missouri. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued
Jun 17, 2017, 12:09 AM CDT (05:09 UTC)
Expired
Jun 17, 2017, 8:53 AM CDT
In force
9 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt
All 30 counties

Allen County, KS, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Neosho County, KS, Woodson County, KS, Barry County, MO, Barton County, MO, Benton County, MO, Camden County, MO, Cedar 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, Vernon County, MO, Webster County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 78 km from the middle of the area, began a volume at 05:13 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
2%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 17, 1:35 AM CDTSevere Thunderstorm WarningSGFBenton, Camden, Maries, Miller, Morgan40 min
Jun 17, 2:01 AM CDTSevere Thunderstorm WarningSGFBenton, St. Clair44 min
Jun 17, 2:35 AM CDTSevere Thunderstorm WarningSGFBenton, Camden, Cedar, Dallas, Hickory, Laclede and 4 more40 min
Jun 17, 2:55 AM CDTSevere Thunderstorm WarningSGFBourbon50 min
Jun 17, 3:26 AM CDTSevere Thunderstorm WarningSGFBourbon49 min
Jun 17, 4:31 AM CDTSevere Thunderstorm WarningICTAllen74 min
Jun 17, 5:03 AM CDTSevere Thunderstorm WarningSGFBourbon, Crawford42 min
Jun 17, 5:25 AM CDTSevere Thunderstorm WarningICTNeosho65 min
Jun 17, 5:40 AM CDTSevere Thunderstorm WarningSGFCherokee50 min
Jun 17, 5:44 AM CDTSevere Thunderstorm WarningSGFBourbon, Cherokee, Crawford46 min
Jun 17, 6:27 AM CDTSevere Thunderstorm WarningSGFCherokee, Crawford48 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 00:00Z, 5.2 hours before the alert went out and 126 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 2017-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3060 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 00:00Z on 2017-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 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
3060 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
1311 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
173 m²/s²
Significant tornado parameter
0.7
Supercell composite
6.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 16, 7:52 PM CDTSevere Thunderstorm WatchSPCAnderson, Atchison, Brown, Clay, Coffey, Doniphan and 19 more9 hr
Jun 16, 9:27 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Douglas, Franklin, Jackson and 14 more2 hr
Jun 16, 11:14 PM CDTMesoscale DiscussionSPCAnderson, Atchison, Bourbon, Brown, Clay, Coffey and 21 more91 min
Jun 17, 2:58 AM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Cherokee, Coffey, Crawford and 11 more2 hr
Jun 17, 5:31 AM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Labette, Neosho89 min
Jun 17, 3:45 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Barber, Barton, Butler and 37 more3 hr
Jun 17, 6:12 PM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Atchison, Barber, Butler, Chase and 53 more7 hr
Jun 16, 11:36 PM CDTSevere Thunderstorm WatchSPCAudrain, Boone, Callaway, Cole, Gasconade, Knox and 11 more3 hr
Jun 17, 2:44 PM CDTMesoscale DiscussionSPCAdair, Clark, Knox, Lewis, Schuyler, Scotland2 hr
Jun 17, 5:39 PM CDTSevere Thunderstorm WatchSPCAdair, Clark, Knox, Lewis, Marion, Putnam and 3 more7 hr

Nearby

Severe Thunderstorm Watches in Missouri, 2017Severe Thunderstorm Watches in Kansas, 2017Every severe thunderstorm watch in 2017

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.