Alert archive / Kansas / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 152

May 8, 20165 counties in Kansas; Jefferson County, Saline County, Seward County, Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at May 8, 2016, 9:08 PM CDT for 5 counties in Kansas; Jefferson County, Saline County, Seward County, Nebraska. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
May 8, 2016, 9:08 PM CDT (02:08 UTC)
Expired
May 9, 2016, 12:16 AM CDT
In force
3 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt

Counties Clay County, KS, Cloud County, KS, Ottawa County, KS, Republic County, KS, Washington County, KS, Jefferson County, NE, Saline County, NE, Seward County, NE

The radar

The Grand Island radar (KUEX), 84 km from the middle of the area, began a volume at 02:09 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
20%
One or more gusts of 65 knots or more
5%
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
60%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 8, 10:05 PM CDTSevere Thunderstorm WarningTOPRepublic40 min
May 8, 10:36 PM CDTSevere Thunderstorm WarningTOPCloud21 min
May 8, 11:20 PM CDTSevere Thunderstorm WarningOAXJefferson, Saline25 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

Omaha, NE (KOAX), launched 00:00Z, 2.1 hours before the alert went out and 151 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, Omaha, NE at 00:00Z on 2016-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 104 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, Omaha, NE at 00:00Z on 2016-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
104 J/kg
Mixed-layer CIN
-194 J/kg
Mixed-layer LCL
1219 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 8, 7:48 PM CDTMesoscale DiscussionSPCClay, Cloud, Ottawa, Republic, Washington117 min
May 8, 11:17 PM CDTMesoscale DiscussionSPCClay, Cloud, Ellis, Ellsworth, Jewell, Lincoln and 10 more88 min
May 8, 11:56 PM CDTSevere Thunderstorm WatchSPCClay, Cloud, Ellis, Ellsworth, Jewell, Lincoln and 9 more4 hr
May 9, 3:35 AM CDTMesoscale DiscussionSPCButler, Chase, Clay, Cloud, Dickinson, Geary and 23 more115 min
May 9, 1:46 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Butler and 53 more59 min
May 9, 2:07 PM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Brown, Butler, Chase, Chautauqua and 41 more10 hr
May 9, 5:29 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Barber, Bourbon, Brown and 48 more61 min
May 9, 2:26 PM CDTMesoscale DiscussionSPCBoyd, Cedar, Dakota, Dixon, Knox, Pierce and 2 more94 min
May 9, 4:52 PM CDTMesoscale DiscussionSPCAdams, Boone, Buffalo, Burt, Butler, Cass and 37 more53 min
May 9, 5:13 PM CDTSevere Thunderstorm WatchSPCAdams, Buffalo, Burt, Butler, Cass, Clay and 36 more6 hr

Nearby

Severe Thunderstorm Watches in Kansas, 2016Severe Thunderstorm Watches in Nebraska, 2016Every severe thunderstorm watch in 2016

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.