Alert archive / Kansas / Severe Thunderstorm Watches in 2017

Severe Thunderstorm Watch 273

May 27, 201714 counties in Kansas

The Storm Prediction Center issued this severe thunderstorm watch at May 27, 2017, 12:52 AM CDT for 14 counties in Kansas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 27, 2017, 12:52 AM CDT (05:52 UTC)
Expired
May 27, 2017, 5:32 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
65 kt

Counties Barton County, KS, Ellis County, KS, Ellsworth County, KS, Jewell County, KS, Lincoln County, KS, Mitchell County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Smith County, KS, Trego County, KS

The radar

The Grand Island radar (KUEX), 119 km from the middle of the area, began a volume at 05:52 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
30%
Ten or more severe hail reports
20%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
60%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 27, 1:19 AM CDTSevere Thunderstorm WarningDDCTrego56 min
May 27, 1:21 AM CDTTornado WarningDDCTrego39 min
May 27, 1:37 AM CDTSevere Thunderstorm WarningGIDPhillips, Rooks53 min
May 27, 1:56 AM CDTTornado WarningDDCEllis, Trego34 min
May 27, 2:05 AM CDTTornado WarningDDCNess, Trego40 min
May 27, 2:11 AM CDTSevere Thunderstorm WarningDDCEllis, Trego49 min
May 27, 2:30 AM CDTSevere Thunderstorm WarningGIDOsborne, Phillips, Rooks, Smith45 min
May 27, 2:40 AM CDTSevere Thunderstorm WarningDDCEllis, Ness, Rush, Trego35 min
May 27, 3:13 AM CDTSevere Thunderstorm WarningDDCEllis, Rush22 min
May 27, 3:16 AM CDTSevere Thunderstorm WarningICTBarton, Russell59 min
May 27, 4:05 AM CDTSevere Thunderstorm WarningICTEllsworth, Lincoln55 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, 5.9 hours before the alert went out and 192 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 2017-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 503 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 2017-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939587897Sfc1 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
503 J/kg
Mixed-layer CIN
-170 J/kg
Mixed-layer LCL
1857 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
151 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 26, 7:38 PM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Finney, Gove, Graham, Greeley and 12 more7 hr
May 26, 10:03 PM CDTMesoscale DiscussionSPCCheyenne, Gove, Lane, Logan, Rawlins, Scott and 5 more117 min
May 26, 11:45 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Ellis, Gove, Graham, Logan and 12 more2 hr
May 27, 1:47 AM CDTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Graham, Greeley, Lane and 10 more88 min
May 27, 3:35 AM CDTMesoscale DiscussionSPCBarton, Clay, Cloud, Dickinson, Ellis, Ellsworth and 21 more115 min
May 27, 9:59 AM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chase, Chautauqua and 20 more2 hr
May 27, 12:13 PM CDTTornado WatchSPCBourbon, Cherokee, Crawford, Johnson, Linn, Miami7 hr
May 27, 1:12 PM CDTMesoscale DiscussionSPCBourbon, Cherokee, Crawford, Linn, Miami, Neosho93 min
May 27, 2:45 PM CDTMesoscale DiscussionSPCGrant, Hamilton, Haskell, Kearny, Morton, Seward and 2 more2 hr
May 27, 2:46 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Coffey, Greenwood, Neosho and 1 more59 min
May 27, 5:27 PM CDTSevere Thunderstorm WatchSPCGrant, Hamilton, Haskell, Kearny, Morton, Seward and 2 more6 hr

Nearby

Severe 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.