Alert archive / Nebraska / Severe Thunderstorm Watches in 2014

Severe Thunderstorm Watch 285

June 11, 20149 counties in Kansas; 10 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Jun 11, 2014, 7:49 PM CDT for 9 counties in Kansas; 10 counties in Nebraska. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Jun 11, 2014, 7:49 PM CDT (00:49 UTC)
Expired
Jun 12, 2014, 12:00 AM CDT
In force
4 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt

Counties Barton County, KS, Ellsworth County, KS, Jewell County, KS, Lincoln County, KS, Mitchell County, KS, Osborne County, KS, Rooks County, KS, Russell County, KS, Smith County, KS, Adams County, NE, Clay County, NE, Fillmore County, NE, Franklin County, NE, Hamilton County, NE, Nuckolls County, NE, Polk County, NE, Thayer County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 61 km from the middle of the area, began a volume at 00:49 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
30%
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
60%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 11, 7:54 PM CDTSevere Thunderstorm WarningGIDAdams, Clay, Hall, Hamilton, Nuckolls, Webster51 min
Jun 11, 8:09 PM CDTSevere Thunderstorm WarningGIDNuckolls, Webster36 min
Jun 11, 8:14 PM CDTSevere Thunderstorm WarningGIDHamilton, York31 min
Jun 11, 8:28 PM CDTSevere Thunderstorm WarningGIDOsborne, Rooks47 min
Jun 11, 8:40 PM CDTSevere Thunderstorm WarningGIDJewell, Smith50 min
Jun 11, 8:42 PM CDTSevere Thunderstorm WarningGIDHamilton, Polk, York33 min
Jun 11, 8:49 PM CDTSevere Thunderstorm WarningGIDOsborne41 min
Jun 11, 9:00 PM CDTSevere Thunderstorm WarningGIDJewell, Smith30 min
Jun 11, 9:16 PM CDTSevere Thunderstorm WarningGIDOsborne, Rooks44 min
Jun 11, 9:24 PM CDTSevere Thunderstorm WarningGIDJewell, Smith51 min
Jun 11, 9:47 PM CDTSevere Thunderstorm WarningICTBarton58 min
Jun 11, 10:34 PM CDTSevere Thunderstorm WarningICTBarton, Russell56 min
Jun 11, 10:47 PM CDTSevere Thunderstorm WarningICTEllsworth, Rice43 min
Jun 11, 11:13 PM CDTSevere Thunderstorm WarningGIDNuckolls14 min
Jun 12, 12:00 AM CDTSevere Thunderstorm WarningICTEllsworth, Saline45 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

Dodge City, (KDDC), launched 00:00Z, 0.8 hours before the alert went out and 251 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, Dodge City, at 00:00Z on 2014-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1716 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, Dodge City, at 00:00Z on 2014-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
1716 J/kg
Mixed-layer CIN
-157 J/kg
Mixed-layer LCL
2429 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.7

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 11, 7:27 PM CDTMesoscale DiscussionSPCEllis, Jewell, Mitchell, Osborne, Phillips, Rooks and 3 more33 min
Jun 11, 8:41 PM CDTMesoscale DiscussionSPCBarber, Butler, Comanche, Cowley, Edwards, Harper and 12 more94 min
Jun 11, 9:49 PM CDTSevere Thunderstorm WatchSPCBarber, Barton, Butler, Chase, Comanche, Cowley and 18 more6 hr
Jun 11, 11:41 PM CDTMesoscale DiscussionSPCButler, Cowley, Dickinson, Harper, Harvey, McPherson and 4 more94 min

Nearby

Severe Thunderstorm Watches in Nebraska, 2014Severe Thunderstorm Watches in Kansas, 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.