Alert archive / Missouri / Severe Thunderstorm Watches in 2013

Severe Thunderstorm Watch 232

May 27, 20139 counties in Kansas; 34 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at May 27, 2013, 9:31 PM CDT for 9 counties in Kansas; 34 counties in Missouri. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 27, 2013, 9:31 PM CDT (02:31 UTC)
Expired
May 28, 2013, 5:00 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 43 counties

Atchison County, KS, Brown County, KS, Doniphan County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Nemaha County, KS, Wyandotte County, KS, Adair County, MO, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Mercer County, MO, Nodaway County, MO, Pettis County, MO, Platte County, MO, Putnam County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Schuyler County, MO, Sullivan County, MO, Worth County, MO

The radar

The Pleasant Hill radar (KEAX), 138 km from the middle of the area, began a volume at 02:33 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
40%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 27, 9:58 PM CDTTornado WarningTOPMarshall, Nemaha32 min
May 27, 11:20 PM CDTSevere Thunderstorm WarningEAXAndrew, Atchison, Holt, Nodaway40 min
May 27, 11:51 PM CDTSevere Thunderstorm WarningEAXDoniphan39 min
May 28, 2:44 AM CDTSevere Thunderstorm WarningEAXAdair, Macon46 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 (KTOP), launched 00:00Z, 2.5 hours before the alert went out and 131 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 00:00Z on 2013-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2862 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 00:00Z on 2013-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 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
2862 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
975 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
165 m²/s²
Significant tornado parameter
1.2
Supercell composite
6.2

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 27, 8:18 PM CDTMesoscale DiscussionSPCClay, Cloud, Dickinson, Ellsworth, Geary, Jewell and 10 more117 min
May 27, 9:07 PM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Cloud, Dickinson, Doniphan and 21 more53 min
May 27, 10:23 PM CDTMesoscale DiscussionSPCBrown, Marshall, Nemaha, Pottawatomie, Riley, Washington67 min
May 27, 11:19 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Jackson, Jefferson, Leavenworth and 3 more116 min
May 28, 1:37 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Chase and 32 more113 min
May 28, 2:23 PM CDTTornado WatchSPCAtchison, Barton, Brown, Clay, Cloud, Coffey and 29 more8 hr
May 28, 2:28 PM CDTMesoscale DiscussionSPCBarber, Clark, Comanche, Kiowa, Pratt62 min
May 28, 2:55 PM CDTSevere Thunderstorm WatchSPCBarber, Clark, Comanche, Edwards, Ford, Kiowa and 5 more9 hr
May 28, 3:08 PM CDTMesoscale DiscussionSPCCheyenne, Greeley, Logan, Rawlins, Sheridan, Sherman and 2 more2 hr
May 28, 3:51 PM CDTSevere Thunderstorm WatchSPCCheyenne9 hr
May 28, 5:52 PM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Dickinson, Doniphan, Geary and 11 more83 min
May 28, 6:05 PM CDTMesoscale DiscussionSPCCheyenne, Sherman115 min
May 28, 3:30 AM CDTMesoscale DiscussionSPCAdair, Audrain, Boone, Callaway, Clark, Cole and 19 more90 min
May 27, 8:39 PM CDTMesoscale DiscussionSPCBlaine, Brown, Custer, Dawson, Frontier, Lincoln and 3 more96 min

Nearby

Severe Thunderstorm Watches in Missouri, 2013Severe Thunderstorm Watches in Kansas, 2013Every severe thunderstorm watch in 2013

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.