Alert archive / Missouri / Severe Thunderstorm Watches in 2014

Severe Thunderstorm Watch 366

June 28, 20144 states

The Storm Prediction Center issued this severe thunderstorm watch at Jun 28, 2014, 2:34 PM CDT for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 28, 2014, 2:34 PM CDT (19:34 UTC)
Expired
Jun 28, 2014, 7:44 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt
All 82 counties

Benton County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Madison County, AR, Sebastian County, AR, Washington County, AR, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Johnson County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Adair County, MO, Barry County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Buchanan County, MO, Caldwell County, MO, Camden County, MO, Carroll County, MO, Cass County, MO, Cedar County, MO, Chariton County, MO, Christian County, MO, Clay County, MO, Clinton County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Greene County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Lafayette County, MO, Lawrence County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, McDonald County, MO, Mercer County, MO, Morgan County, MO, Newton County, MO, Pettis County, MO, Platte County, MO, Polk County, MO, Putnam County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Schuyler County, MO, St. Clair County, MO, Stone County, MO, Sullivan County, MO, Vernon County, MO, Worth County, MO, Adair County, OK, Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Haskell County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Rogers County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK

The radar

The Pleasant Hill radar (KEAX), 45 km from the middle of the area, began a volume at 19:36 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 SPC expected

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

Two or more tornadoes
10%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
50%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 28, 2:44 PM CDTSevere Thunderstorm WarningTSACreek, Mayes, Okmulgee, Osage, Rogers, Tulsa and 1 more46 min
Jun 28, 2:50 PM CDTSevere Thunderstorm WarningSGFBourbon, Crawford55 min
Jun 28, 2:51 PM CDTSevere Thunderstorm WarningTSACraig, Delaware, Mayes, Nowata, Ottawa, Rogers54 min
Jun 28, 3:02 PM CDTSevere Thunderstorm WarningEAXLinn, Miami43 min
Jun 28, 3:32 PM CDTTornado WarningTSACraig, Delaware, Mayes28 min
Jun 28, 3:37 PM CDTSevere Thunderstorm WarningEAXCaldwell, Carroll, Livingston, Ray17 min
Jun 28, 3:40 PM CDTSevere Thunderstorm WarningSGFCherokee35 min
Jun 28, 4:32 PM CDTSevere Thunderstorm WarningSGFBarton, Jasper28 min
Jun 28, 5:01 PM CDTSevere Thunderstorm WarningSGFCedar, Dade, Vernon44 min
Jun 28, 5:15 PM CDTSevere Thunderstorm WarningSGFDade, Lawrence30 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

Topeka, KS (KFOE), launched 12:00Z, 7.6 hours before the alert went out and 130 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, Topeka, KS at 12:00Z on 2014-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1559 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, Topeka, KS at 12:00Z on 2014-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -80 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
1559 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
775 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-80 m²/s²
0-3 km storm-relative helicity
-77 m²/s²
Significant tornado parameter
-0.4
Supercell composite
-3.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 28, 11:26 AM CDTMesoscale DiscussionSPCBenton94 min
Jun 28, 6:08 PM CDTMesoscale DiscussionSPCMarion97 min
Jun 27, 9:30 PM CDTMesoscale DiscussionSPCClark, Decatur, Finney, Ford, Gove, Graham and 23 more60 min
Jun 27, 9:49 PM CDTMesoscale DiscussionSPCBeckham, Blaine, Caddo, Comanche, Cotton, Custer and 13 more86 min
Jun 28, 8:41 AM CDTMesoscale DiscussionSPCAlfalfa, Blaine, Canadian, Creek, Custer, Dewey and 17 more64 min
Jun 28, 3:21 PM CDTMesoscale DiscussionSPCBeckham, Caddo, Comanche, Cotton, Custer, Dewey and 7 more84 min

Nearby

Severe Thunderstorm Watches in Missouri, 2014Severe Thunderstorm Watches in Oklahoma, 2014Severe Thunderstorm Watches in Arkansas, 2014Every severe thunderstorm watch in 2014

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.