Alert archive / Kansas / Severe Thunderstorm Watches in 2017

Severe Thunderstorm Watch 267

May 25, 20175 counties in Colorado; 18 counties in Kansas; 11 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at May 25, 2017, 1:46 PM MDT for 5 counties in Colorado; 18 counties in Kansas; 11 counties in Nebraska. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 25, 2017, 1:46 PM MDT (19:46 UTC)
Expired
May 25, 2017, 9:00 PM MDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 34 counties

Cheyenne County, CO, Kit Carson County, CO, Phillips County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Ellis County, KS, Gove County, KS, Graham County, KS, Lane County, KS, Logan County, KS, Ness County, KS, Norton County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Rush County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Chase County, NE, Dawson County, NE, Dundy County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Phelps County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 52 km from the middle of the area, began a volume at 19:47 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
2%
Ten or more severe wind reports
70%
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
30%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 25, 1:53 PM MDTSevere Thunderstorm WarningGLDYuma52 min
May 25, 2:27 PM MDTSevere Thunderstorm WarningBOUWashington30 min
May 25, 2:36 PM MDTSevere Thunderstorm WarningBOUWashington39 min
May 25, 2:42 PM MDTSevere Thunderstorm WarningGLDYuma48 min
May 25, 2:48 PM MDTSevere Thunderstorm WarningLBFChase42 min
May 25, 3:18 PM MDTSevere Thunderstorm WarningGLDYuma42 min
May 25, 3:36 PM MDTSevere Thunderstorm WarningGLDYuma24 min
May 25, 3:39 PM MDTTornado WarningGLDYuma36 min
May 25, 3:42 PM MDTSevere Thunderstorm WarningGLDKit Carson48 min
May 25, 4:03 PM MDTSevere Thunderstorm WarningGLDSherman42 min
May 25, 4:11 PM MDTSevere Thunderstorm WarningGLDCheyenne, Sherman34 min
May 25, 4:26 PM MDTSevere Thunderstorm WarningGLDSherman, Wallace19 min
May 25, 4:40 PM MDTSevere Thunderstorm WarningGLDLogan, Sherman, Thomas, Wallace50 min
May 25, 4:43 PM MDTSevere Thunderstorm WarningGLDCheyenne, Rawlins47 min
May 25, 5:07 PM MDTSevere Thunderstorm WarningGLDGove, Logan, Thomas38 min
May 25, 5:21 PM MDTTornado WarningGLDGove, Logan, Sheridan, Thomas24 min
May 25, 5:39 PM MDTSevere Thunderstorm WarningGLDGove, Logan, Sheridan, Thomas51 min
May 25, 5:42 PM MDTTornado WarningGLDGove, Logan, Sheridan, Thomas17 min
May 25, 5:55 PM MDTSevere Thunderstorm WarningGLDGove35 min
May 25, 6:06 PM MDTSevere Thunderstorm WarningDDCLane, Ness, Trego54 min
May 25, 6:20 PM MDTSevere Thunderstorm WarningGLDGove40 min
May 25, 6:23 PM MDTSevere Thunderstorm WarningGLDGraham, Sheridan52 min
May 25, 6:52 PM MDTSevere Thunderstorm WarningGLDGove23 min
May 25, 7:00 PM MDTSevere Thunderstorm WarningDDCEllis, Ness, Rush, Trego45 min
May 25, 7:07 PM MDTSevere Thunderstorm WarningGLDGraham21 min
May 25, 7:28 PM MDTSevere Thunderstorm WarningDDCEllis, Ness, Rush, Trego47 min
May 25, 7:30 PM MDTSevere Thunderstorm WarningBOULogan, Morgan, Washington, Weld31 min
May 25, 8:11 PM MDTSevere Thunderstorm WarningDDCEllis, Rush21 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

Denver, CO (KDEN), launched 12:00Z, 7.8 hours before the alert went out and 164 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, Denver, CO at 12:00Z on 2017-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 55 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2017-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 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
55 J/kg
Mixed-layer CIN
-269 J/kg
Mixed-layer LCL
2423 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
-10 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 25, 12:35 PM MDTMesoscale DiscussionSPCCheyenne, Kit Carson, Logan, Morgan, Phillips, Sedgwick and 2 more115 min
May 25, 4:23 PM MDTMesoscale DiscussionSPCCheyenne, Decatur, Ellis, Finney, Gove, Graham and 20 more67 min

Nearby

Severe Thunderstorm Watches in Kansas, 2017Severe Thunderstorm Watches in Nebraska, 2017Severe Thunderstorm Watches in Colorado, 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.